rotary engine is sorta like trying to reinvent the wheel, it works well on paper but they all fail, i've yet to see a good rotary engine that has not been rebuilt after it reaches 100,00km, even the new rx8 i've seen could not go 40,000km without some issue, not to mention this engine is extremely inefficient, eats a lot of gas yet fails to provide any significant advantages other than that it just sounds really cool.
Your animation has the eccentric shaft rotating at a different speed than the rotor. I can see the rotor dancing around the eccentric shaft, but am unable to figure out how the eccentric shaft is driven.
This comment has received too many negative votesshow
@doktorbrimmer I am fully versed in the history of Wankel's rotary designs...both of them. Yes, I know the difference between the DKM and the KKM. One has a rotating crankcase, the other a rotating "piston". They're both rotary engines, of different styles. This idea of a "true" rotary engine has to have a rotating crankcase is silly. The "piston" (it's not technically a TRUE piston, ha, ha) rotates...hence, rotary. Case closed.
@sorgoid Well, then you clearly don't understand what a rotary type engine is or isn't.
A rotary engine has a rotating crankcase and a fixed shaft...wheither it has pistons or not.
A Wankel (KKM) has neither.. so its not really a rotary but it works very much like one that is.
Well if a piston can be described as the moving part inside a combustion chamber that seals the combustion gases and transfer the energy of expanding gases into motion... then I guess you can call it a piston.
This comment has received too many negative votesshow
Looking at the design, there are a few horrible flaws. I'm not exactly sure how this thing doesn't break ever few hours.The amount of friction on the apex seals right after ignition and during combustion seems like it would wear them out way too quickly to be considered reliable. And the bad part is, once one of those goes, you're just gonna be carving out the block from the inside out. There's no rebuild for that. Have fun spending thousands on a new engine.
Technically, the piston is rotating (and orbiting...one not exclusive of the other), hence, "rotary engine". Or should it be a "rotary-piston engine"? Ahhh, but it's not 'technically' a "piston", now is it? Please, technically tell us, doktorbrimmer.
@sorgoid An engine with a spinning crankshaft is not a rotary. The first Wankel engine, the DKM was a true rotary.. Wankel's second design (the one in common use) is called a KKM or Wankel motor system.
Look it up if you don't believe me.
KKM stands for Orbiting. PISTON. Motor.
Dr Wankel called them pistons (kolben) not rotors.. thats good enough for me, after all he invented it.
This comment has received too many negative votesshow
Both designs of engine are called "rotary". One has a rotating case and radial piston design, and the other uses rotors (rotating "pistons"). They are both "rotary" engines. It comes down to whether or not you believe that ONLY an engine that has a rotating crankcase DESERVES to be called rotary. To me, there are different types of rotary engines. An engine that uses rotors instead of pistons is a rotary engine. An engine that spins around a stationary crankshaft is a rotary engine. OK?
the proper name is Wankel engine but Mazda calls it a rotary. just search what a (real) rotary engine is (wikipedia?) and you will see that it is totally different
This comment has received too many negative votesshow
The "RX" in RX-8 and RX-7 means Rotary Experimental, So either way of calling the engine a Wankel or Rotary is right, because the main shaft rotates getting the "rotary" term.
@Jayman194 Wrong, the "Mazda Rotary" whitch is a Wankel KKM, it is not actually a Rotary BECAUSE its mainshaft spins.. a Rotary Engine has a fixed (stationary) mainshaft. The term "Rotary" refers to a rotating crankcase or combustion housing.
This comment has received too many negative votesshow
@dvaifilmsdotcom Wankel is the technical term for this "Rotary" engine, named after the guy who made it. Rotary is the type of stuff you see in Aeroplanes (Propeller)
@Spartan0189 Your about half right, Wankel did build a "Rotary" called the DKM (spinning piston motor). Its main E-shaft was fixed just like the crankshaft on the old aircraft Rotarys.
The engine shown here is called Wankel Motor systeme aka KKM (Orbiting Piston Motor)
The term "rotor" is basicly a English mis-translation, the term "rotary" is not derived from the word "rotor" in this case.
The DKM is a "Rotary Engine"
This engine is a KKM.. it is not a "Rotary Engine"
@dvaifilmsdotcom It get very complicated..but here it goes, Rotary engines have their mainshaft or crankshaft fixed (does not spin) and the crankcase, housing, cylinders ect. all rotate around the shaft.
Wankels first pistonless engine was a rotary, the ecentric shaft did not spin. the "rotors" (Dr.Wankel called them pistons) and the combustion housing rotated.
This engine is called a Wankel KKM "Kreiskolbenmotor" (orbiting piston motor) and is not a rotary.
@gorrammit Yes in the Mazda Wankel Engine (13B) for example, they fire in sequence, there is a primary plug that fires first (5degs before 0 at idle) and then the secondary plug fires (a preset number of degs. delay) after the primary.
It's weird, though, as each distributor has spark plugs that look to fire 90 degrees apart (with 270 degrees doing nothing) and those plugs are wired to different chambers (which are 180 degree apart).
I won't be building the distributors exactly like the real one, but i just found it odd.
@doktorbimmer well since it takes 3 cranks to complete a full rotor rotation (which means 3 combustions) that makes 1 combustion per crank revolution...like a 2 stroke engine. I'm thinking in terms of power "stroke" per crank rotation. so the power to weight's almost the same, but the wankel's cleaner since it includes all 4 cycles.
Anywho, thank's for your help, maybe I'll upload a vid of my model when I'm done
@gorrammit I just confused myself trying to explain it 3 power strokes per rotor rotation not the eccentric shaft there is 1 power stroke per eccentric shaft rotation.
that engine with in a year will become round after all........if you want to maintain its performance you've got to change those apex seals everyday...
This comment has received too many negative votesshow
aaahhhh , the good rotary engines :) simple , efficient , and anti mechanics lol its hated by all mechanics ( very hard to break down / very easy to fix ) just diffirent operating system .
@DARIO8417 search for "Awesome Engine Animation" and click the first video. That's a 4-cylinder engine with DOHC (those TWO shafts pushing the valves on the top of the engine)
What you see here is a Wankel Rotary engine, watch this and watch the other video and you'll see why this engine doesn't need valves.
This comment has received too many negative votesshow
This engine is used for some Mazda cars like RX7 and RX8... he got a nice power for a few gas consumption. the only problem is the conception of this engine costs more than a traditionnal 4cylinder motor ...
@MrPafleouf NSU Spyder and Ro80 were the first Automobiles to have Wankel engines. One of the main problems with all Wankel's is poor fuel economy. production cost are usually comparable for power output. Reliablity and service life traditionaly fall short of piston engines. Its major drawback these days is it high exhaust emissions and fuel economy.
first time i have heard about this system was in the Mazda rx8 but to this point in time i have no idea what advantage does it have over the conventional system...would anyone help me out?
@drfflame Advantages; compact size and low weight with very high power output, smooth power delivery, simple design with fewer parts and can be designed as a modular system utilizing the same rotor and casings in a 2, 3 or 4 rotor version.
Disadvantages; poor fuel economy, high emissions and oil consumption, low torque output and low rpm tractability, less reliablity and service life. e.g. appex seals are generally problematic and require complete tear down to service.
@SasquatchOverlord Wrong, the Fichtel-Sachs company bought the licensing rights to use the patented Wankel engine from the NSU-Wankel company just like Mazda and many other manufacturers did.
This comment has received too many negative votesshow
@sergeant5027 How the hell do stupid comments such as this get voted up? It can be called either. It has 2-4 rotors doesn't it? Therefore it's called a rotary. It's inventors' name was Felix Wankel. Therefore it can also be called a Wankel engine.
@Bamchucknorris Actually. its not, the motor shown here is officially known as "Motor nach Systeme Wankel" (NSU/Wankel) aka the KKM.
Wankel did design a "Rotary" called the "DKM" but as of late no one has ever produced them.
The fact that this engine has "rotors" does not mean its a "Rotary type" Rotary refers to the layout of engine in whitch the housing (or cylinders) rotate around the shaft and the SHAFT IS FIXED.
Mazda avoids the use of "Wankel name" to avoid patent law issues
This comment has received too many negative votesshow
@doktorbimmer The DKM 54 is a wankel rotary engine. You are confused with the WWI type rotary engines such as the Bently BR-2 or the Gnome et Rhone Delta. The Wankel is a rotary as it converts pressure in a rotational manner; and the rotors revolve on rotor journals on an eccentric shaft. I understand your confusion; but there is more than one type of rotary engine; as the adjective "rotary" descirbes the mere mechanical aspects of the engine.
@Bamchucknorris No, I'm not confused.. you are. The engine shown in this vid. is a "KKM" not "DKM"
The Wankel DKM was a "Rotary" because its main shaft (E-shaft) was fixed AND ITS HOUSING ROTATES, Just like other types also refered to as "Rotary Type" as the original design "Piston-Rotary Type"
Wankel did not use the term "rotor" but correctly translates to "Orbiting piston" "Rotary" refers to the ROTATING HOUSING (DKM) NOT "ROTOR"
@Deksametazon1 i dont know why u assume the wankel and rotary are two different engines cause there not. felix wankel invented the rotary engine, thus named after him. They have rotary pistons
@prfinest9207 Because they are different, the use of the term "rotary" applied to the Wankel motor is ambiguous, it only applies to Dr.Wankel's first design the DKM.
Wrong, the "Rotary engine" was invented by Felix Millet, not Felix Wankel. Millet is credited with the idea of a fixed crankshaft concept and his design was the first commercially produced.
Does your car have rotary brakes? or rotary ignition?
Although commonly used "rotor" is not the root of "rotary".. it means to rotate
@jokee131 Your sorta right, they don't all have camshafts.. but they do have pistons and some have connecting rods too.
Felix Millet invented the Rotary engine long before the other Felix invented the Wankel engine, the Wankel does not have connecting rods but it does have Pistons (the funny triangle things that spin around) some folks call em rotors too. I guess you could call the eccentric shaft a camshaft even though it doesn't have valves.
@doktorbimmer I dunno I helped pull aprt an engine from an old RX4 years ago and it looked ALOT like this. They started in the RE 100 (Rotary engine 100) were found in the Capella's and of course all of the RX series. They arent the same as their airplane counterparts of course but have always been refered to as a rotary.
@GeneralG1810 Yes, This is a Wankel KKM, All Mazda engines are Wankel KKMs or variation of them.
Yes, they (Wankel KKM) are not the same as old aircraft Rotary.
No, the KKM is not a "Rotary Engine" it has a spinnng mainshaft.
Wankels original design (the DKM) was a "Rotary Engine" its Mainshaft was fixed just like the old aircraft engine.. that where the name "rotary" comes from.
@tansan143 Well, actually, I heard that a rotor is about 3 piston strong, (mean s a 2 rotored wankel worths an i6, a V6, or a boxer 6cyl engine, but the capacity is the most important at Wankel vs Otto engine comparements. BUT I'M NOT SURE.
I've had one of these mounted to a VW transaxle for over 27 yrs now and it still runs like new, smooth, powerful and dependable. Stock with 4 barrel carb, 12A and short exhaust(real hot too) with two mufflers. Love it. The whole block is 12"X16" and was installed by two guys lifting and sliding it onto the trans. Hangs right off the trans like a VW boxer engine too. Great design.
@klikhalno The Wankel engine used today is not a rotary.. Its a "Kreiskolbenmotor" that when correctly translated means "Circular Piston Motor" The confussion starts with Wankels earlier version with a rotating housing called Drehkolbenmotor that was abandoned. The Rotary type engine had already been invented in France with a layout similar to the Radial Type but with a fixed crankshaft and rotating cylinders. Mazda has mis-used the "Rotary" name to simply get out of paying Wankel patent fees
Thanks Matt, nice animation but.. just a reminder, its not really a rotary engine, a rotary engine looks like a radial type but with a fixed crankshaft and the cylinders spinning around it. This is a Wankel engine.. its called that because its patented just like Diesel, Otto, or Sterling
This comment has received too many negative votesshow
@doktorbimmer Wankel engines are a subset of rotary engines, more specifically it's a type of pistonless rotary engine. Though you are correct that it's not a generalized rotary engine as that used to usually refer to the piston rotary engine you described.
@UCMolosser No and Yes, the type shown here is a Wankel Engine, Wankel partnered with NSU and sold licenses to major manufacturers such as Audi, Mercedes, GM and to Toyo Kogyo (parent company of Mazda) both NSU-Wankel and Mazda continued to file for numerous patents for refinements of the basic engine. As a result of this Toyo Kogyo penned the name "Mazda Rotary" to its version of the Wankel in markets to avoid any implied conflict with exsisting patents. The "Rotary Type Engine" has pistons.
@UCMolosser Yes, its always best to be alittle more specific than just "rotary" its even applied to types of steam piston engines too adding even more confusion, even saying "Mazda Rotary" would be more correct useage, someone looking for a video about Rotary engines might be confused.
wow.. amazing piece of engineering...and wonder why it needs more coolant jackets working alot at high pressures.......but one bad problem is takes alot of fuel...but still japs know what there doing
@lote1234567891011 a four cylender 4 stroke motor only fires 2 times in one rotation of the crank where a four cylender rotary fires 24 times in a single crank rotation. i think corect me if im wrong as i am quite drunk at the moment.
And ya they burn through fuel but they're fuckin reliable mines 30 years old all stock 250000 Kms just starting to put money into it now, they're for cruisin not everyday driving u want good mileage in a sports/classic car it limits your options
rotary engine is sorta like trying to reinvent the wheel, it works well on paper but they all fail, i've yet to see a good rotary engine that has not been rebuilt after it reaches 100,00km, even the new rx8 i've seen could not go 40,000km without some issue, not to mention this engine is extremely inefficient, eats a lot of gas yet fails to provide any significant advantages other than that it just sounds really cool.
ScrapeNow 1 day ago
Your animation has the eccentric shaft rotating at a different speed than the rotor. I can see the rotor dancing around the eccentric shaft, but am unable to figure out how the eccentric shaft is driven.
Zyworski 2 days ago
@Zyworski It is shown correctly, there are 3 revolutions of the eccentric for each revolution of the piston (rotor).
The piston acts directly on the off-set center of the cam lobe on the E-shaft, like the rod journal of a crankshaft.
doktorbimmer 2 days ago
coolant jackets... coolant jackets... i understood.
P.S.
Very cool
KDTeamSn1p3r 4 days ago
This comment has received too many negative votes show
I had a Mazda Rx7 with a rotary engine.Was fun on the mountain roads around Asheville.Ran the crap out of it no problems.
BlueridgeHighlander 4 days ago
This comment has received too many negative votes show
@doktorbrimmer I am fully versed in the history of Wankel's rotary designs...both of them. Yes, I know the difference between the DKM and the KKM. One has a rotating crankcase, the other a rotating "piston". They're both rotary engines, of different styles. This idea of a "true" rotary engine has to have a rotating crankcase is silly. The "piston" (it's not technically a TRUE piston, ha, ha) rotates...hence, rotary. Case closed.
sorgoid 5 days ago
@sorgoid Well, then you clearly don't understand what a rotary type engine is or isn't.
A rotary engine has a rotating crankcase and a fixed shaft...wheither it has pistons or not.
A Wankel (KKM) has neither.. so its not really a rotary but it works very much like one that is.
Well if a piston can be described as the moving part inside a combustion chamber that seals the combustion gases and transfer the energy of expanding gases into motion... then I guess you can call it a piston.
doktorbimmer 5 days ago 4
This comment has received too many negative votes show
Looking at the design, there are a few horrible flaws. I'm not exactly sure how this thing doesn't break ever few hours.The amount of friction on the apex seals right after ignition and during combustion seems like it would wear them out way too quickly to be considered reliable. And the bad part is, once one of those goes, you're just gonna be carving out the block from the inside out. There's no rebuild for that. Have fun spending thousands on a new engine.
JoshDee84 6 days ago
@JoshDee84 thanks for that info i was going to buy one but hearing this you are the3rd person i hear this from can't rebuild just buy anew engine...
TheOpocolypse74 1 day ago
This comment has received too many negative votes show
This motor design is poor and failed because the apex seals wear out way too fast. Silly Germans...
devil614 6 days ago
Technically, the piston is rotating (and orbiting...one not exclusive of the other), hence, "rotary engine". Or should it be a "rotary-piston engine"? Ahhh, but it's not 'technically' a "piston", now is it? Please, technically tell us, doktorbrimmer.
sorgoid 6 days ago
@sorgoid An engine with a spinning crankshaft is not a rotary. The first Wankel engine, the DKM was a true rotary.. Wankel's second design (the one in common use) is called a KKM or Wankel motor system.
Look it up if you don't believe me.
KKM stands for Orbiting. PISTON. Motor.
Dr Wankel called them pistons (kolben) not rotors.. thats good enough for me, after all he invented it.
doktorbimmer 6 days ago 3
This comment has received too many negative votes show
Both designs of engine are called "rotary". One has a rotating case and radial piston design, and the other uses rotors (rotating "pistons"). They are both "rotary" engines. It comes down to whether or not you believe that ONLY an engine that has a rotating crankcase DESERVES to be called rotary. To me, there are different types of rotary engines. An engine that uses rotors instead of pistons is a rotary engine. An engine that spins around a stationary crankshaft is a rotary engine. OK?
sorgoid 6 days ago
Very very cool animation. You should be proud!
rearscuttle 1 week ago
This comment has received too many negative votes show
Rotary all the way... BRAP! BRAP! BRAP! RotaryPowa! Rotary4LiFe! AkA the V8 Killa!
ajyabhilash 1 week ago
This comment has received too many negative votes show
Beautiful video of a pre-Renesis 13B.
cerb0881erus 1 week ago
Thanks Chief! 2 hours of shitty reading summed up in a nice 3:25 video.
Hunkyfish20 1 week ago
This comment has received too many negative votes show
Who you calling an eccentric shaft?
greg55666 1 week ago
This comment has received too many negative votes show
Are you embarrassed easily? Do words like "Wankel Rotary Engine" cause you to blush?
greg55666 1 week ago
the proper name is Wankel engine but Mazda calls it a rotary. just search what a (real) rotary engine is (wikipedia?) and you will see that it is totally different
justinmiusuks 1 week ago 11
this thing is big fail, when this piston will bit old then piston wan't create compression!
TheMultimaster420 2 weeks ago
This comment has received too many negative votes show
The "RX" in RX-8 and RX-7 means Rotary Experimental, So either way of calling the engine a Wankel or Rotary is right, because the main shaft rotates getting the "rotary" term.
Jayman194 2 weeks ago
@Jayman194 Its not a Rotary because its mainshaft spins, the "Mazde Rotary" is a license built Wankel KKM.. its not an actual a "Rotary Engine"
doktorbimmer 2 weeks ago
@Jayman194 Wrong, the "Mazda Rotary" whitch is a Wankel KKM, it is not actually a Rotary BECAUSE its mainshaft spins.. a Rotary Engine has a fixed (stationary) mainshaft. The term "Rotary" refers to a rotating crankcase or combustion housing.
doktorbimmer 1 week ago
someone explain the difference in WANKEL and ROTARY
dvaifilmsdotcom 2 weeks ago
This comment has received too many negative votes show
@dvaifilmsdotcom Wankel is the technical term for this "Rotary" engine, named after the guy who made it. Rotary is the type of stuff you see in Aeroplanes (Propeller)
Spartan0189 2 weeks ago
@Spartan0189 Your about half right, Wankel did build a "Rotary" called the DKM (spinning piston motor). Its main E-shaft was fixed just like the crankshaft on the old aircraft Rotarys.
The engine shown here is called Wankel Motor systeme aka KKM (Orbiting Piston Motor)
The term "rotor" is basicly a English mis-translation, the term "rotary" is not derived from the word "rotor" in this case.
The DKM is a "Rotary Engine"
This engine is a KKM.. it is not a "Rotary Engine"
doktorbimmer 2 weeks ago 2
@dvaifilmsdotcom It get very complicated..but here it goes, Rotary engines have their mainshaft or crankshaft fixed (does not spin) and the crankcase, housing, cylinders ect. all rotate around the shaft.
Wankels first pistonless engine was a rotary, the ecentric shaft did not spin. the "rotors" (Dr.Wankel called them pistons) and the combustion housing rotated.
This engine is called a Wankel KKM "Kreiskolbenmotor" (orbiting piston motor) and is not a rotary.
The engine
doktorbimmer 2 weeks ago
@dvaifilmsdotcom
Look to a "Gnome rotary" video on youtube and you see immediatly the difference...
A Wankel is technicaly not a rotary but rotary sounds good :-)))
leneanderthalien 2 weeks ago 16
This is the probably the best video I have seen that demonstrates the Wankel engine in action. Thank you!
1987zdavis 2 weeks ago 5
hmm.. I can see why those damn apex seals go quickly.
JamalTheTitan 2 weeks ago
volgens mij een wankel motor
Mazda, NSU
qbertqgmail 2 weeks ago 6
Comment removed
doktorbimmer 3 weeks ago
ОХУЕННО!!!!!
WovaGTR 3 weeks ago
What a Wankel !
irelandbloke 3 weeks ago 4
This comment has received too many negative votes show
Mazda Rx-7 FC is the sexiest car ever made nuff said.
felixzman 3 weeks ago
This comment has received too many negative votes show
Finallly i understand how rx7 engine works
JunePTpwner 3 weeks ago
hummmmm
visioneerone 3 weeks ago
This comment has received too many negative votes show
It is a smart animation! I am proud as a Japanese.
Thank you.
maguna75 3 weeks ago
This comment has received too many negative votes show
@maguna75 to bad its originated form Germany :P
Tort1llaboy 3 weeks ago
QUESTION: In EACH rotary chamber (for mazda engine) engine there are TWO spark plugs. Do they fire in sequence (one after the other) or together?
I'm building a model of the engine and I'm planning on having the spark plugs light up, so I want to know before wiring it up.
gorrammit 3 weeks ago
@gorrammit Yes in the Mazda Wankel Engine (13B) for example, they fire in sequence, there is a primary plug that fires first (5degs before 0 at idle) and then the secondary plug fires (a preset number of degs. delay) after the primary.
doktorbimmer 3 weeks ago
@doktorbimmer Thanks for the reply.
It's weird, though, as each distributor has spark plugs that look to fire 90 degrees apart (with 270 degrees doing nothing) and those plugs are wired to different chambers (which are 180 degree apart).
I won't be building the distributors exactly like the real one, but i just found it odd.
Thanks
gorrammit 3 weeks ago
Comment removed
doktorbimmer 3 weeks ago
@doktorbimmer it's actually more like a 2-stroke piston engine (every full turn of the crankshaft equals 1 combustion)
gorrammit 3 weeks ago
Comment removed
doktorbimmer 3 weeks ago
@doktorbimmer well since it takes 3 cranks to complete a full rotor rotation (which means 3 combustions) that makes 1 combustion per crank revolution...like a 2 stroke engine. I'm thinking in terms of power "stroke" per crank rotation. so the power to weight's almost the same, but the wankel's cleaner since it includes all 4 cycles.
Anywho, thank's for your help, maybe I'll upload a vid of my model when I'm done
gorrammit 3 weeks ago
Comment removed
doktorbimmer 3 weeks ago
@gorrammit I just confused myself trying to explain it 3 power strokes per rotor rotation not the eccentric shaft there is 1 power stroke per eccentric shaft rotation.
doktorbimmer 3 weeks ago
you see... boost goes in, apex seals go out.
flyingcows547 3 weeks ago 4
yo dawg, we heard you like coolant jackets...
ydna2 4 weeks ago
Funny video xD
ulambaulamba 4 weeks ago
Ciekawa sprawa
bravoteampolska 4 weeks ago
that engine with in a year will become round after all........if you want to maintain its performance you've got to change those apex seals everyday...
wewew2012 4 weeks ago
Dario there are no valves or camshafts on a rotory engine. What you saw in the video is what you get. Three moving parts in a 13b.
jhenry765653 1 month ago
Nothing better than Nazi engineering
DidYouSeeTheSunrise 1 month ago 3
This comment has received too many negative votes show
aaahhhh , the good rotary engines :) simple , efficient , and anti mechanics lol its hated by all mechanics ( very hard to break down / very easy to fix ) just diffirent operating system .
AnunnakiThe1 1 month ago
Wankel also produced rotary RC airplane motors... great visual explanation of the confusing triangular pistoned engine.
sidepocketcustoms 1 month ago
Guys that is the best ever description/animation I have seen on a rotor... You got skills, keep it up!
blaiseproductions 1 month ago
is the DOHC engine?
DARIO8417 1 month ago
@DARIO8417 what in the hell are you talking about?
sideshow45 1 month ago
@sideshow45 I mean the four-stroke engines. Double Over Head Camshaft DOHC ie.
DARIO8417 1 month ago
@DARIO8417 search for "Awesome Engine Animation" and click the first video. That's a 4-cylinder engine with DOHC (those TWO shafts pushing the valves on the top of the engine)
What you see here is a Wankel Rotary engine, watch this and watch the other video and you'll see why this engine doesn't need valves.
gorrammit 3 weeks ago
What an unusual engine.
n3rdbear 1 month ago
shaft... :D
PimpedPenguin 1 month ago
This comment has received too many negative votes show
This engine is used for some Mazda cars like RX7 and RX8... he got a nice power for a few gas consumption. the only problem is the conception of this engine costs more than a traditionnal 4cylinder motor ...
MrPafleouf 1 month ago
@MrPafleouf NSU Spyder and Ro80 were the first Automobiles to have Wankel engines. One of the main problems with all Wankel's is poor fuel economy. production cost are usually comparable for power output. Reliablity and service life traditionaly fall short of piston engines. Its major drawback these days is it high exhaust emissions and fuel economy.
doktorbimmer 1 month ago
Fantastic!!!! But we didn´t see this type of engine... in the most of cars!!! Maybe it costs more
IVANFIREBALL 1 month ago
@IVANFIREBALL It's hard and expensive to repair.
carlsoto1747 1 month ago 3
@IVANFIREBALL They produce shit MPG for the amount of power they give. Although the engine is generally smaller in size!
Plus they are quite unreliable.
redwhiteblue91 1 month ago 3
This makes my shaft eccentric.
BluGTS03 1 month ago
Awesome explanation.
I've always have like rotary engines.
I should throw a 20b in my 240. ha. Just a thought.
Jss13ihatecurbs 1 month ago
Rotary engine of Mazda RX, who can repair an engine like this?
RTGyro 1 month ago in playlist Favorite videos
first time i have heard about this system was in the Mazda rx8 but to this point in time i have no idea what advantage does it have over the conventional system...would anyone help me out?
drfflame 1 month ago
@drfflame Advantages; compact size and low weight with very high power output, smooth power delivery, simple design with fewer parts and can be designed as a modular system utilizing the same rotor and casings in a 2, 3 or 4 rotor version.
Disadvantages; poor fuel economy, high emissions and oil consumption, low torque output and low rpm tractability, less reliablity and service life. e.g. appex seals are generally problematic and require complete tear down to service.
doktorbimmer 1 month ago 3
@doktorbimmer thnx alot :) that was really helpful :3
drfflame 1 month ago
This is wankel engine not rotary....
sergeant5027 1 month ago 40
This comment has received too many negative votes show
@sergeant5027 Its a rotary engine..
72GranTorino1 1 month ago
@72GranTorino1 Sorry, a rotary engine has pistons, like a radial but with a fixed crankshaft. this is a Wankel engine.. Felix Wankel patented it.
doktorbimmer 1 month ago 3
@sergeant5027 It's a Sachs Wankel Rotary Engine.... Got one in my snowmobile.
SasquatchOverlord 3 weeks ago
@SasquatchOverlord Wrong, the Fichtel-Sachs company bought the licensing rights to use the patented Wankel engine from the NSU-Wankel company just like Mazda and many other manufacturers did.
doktorbimmer 3 weeks ago 3
This comment has received too many negative votes show
@sergeant5027 How the hell do stupid comments such as this get voted up? It can be called either. It has 2-4 rotors doesn't it? Therefore it's called a rotary. It's inventors' name was Felix Wankel. Therefore it can also be called a Wankel engine.
XxENovaxX 3 weeks ago
@XxENovaxX Then why isn't called a rotor motor then?
doktorbimmer 3 weeks ago
@XxENovaxX 2-4 rotors? It can be built in any number of rotors 1-9 rotor version have been built before.
Dr. Wankel not only invented it but patented and trademarked the name too.. just like Rudolf Diesel.
doktorbimmer 3 weeks ago 2
This comment has received too many negative votes show
@sergeant5027 It is a WANKEL ROTARY engine, as it has ROTORS
Bamchucknorris 2 weeks ago
@Bamchucknorris Actually. its not, the motor shown here is officially known as "Motor nach Systeme Wankel" (NSU/Wankel) aka the KKM.
Wankel did design a "Rotary" called the "DKM" but as of late no one has ever produced them.
The fact that this engine has "rotors" does not mean its a "Rotary type" Rotary refers to the layout of engine in whitch the housing (or cylinders) rotate around the shaft and the SHAFT IS FIXED.
Mazda avoids the use of "Wankel name" to avoid patent law issues
doktorbimmer 2 weeks ago
This comment has received too many negative votes show
@doktorbimmer The DKM 54 is a wankel rotary engine. You are confused with the WWI type rotary engines such as the Bently BR-2 or the Gnome et Rhone Delta. The Wankel is a rotary as it converts pressure in a rotational manner; and the rotors revolve on rotor journals on an eccentric shaft. I understand your confusion; but there is more than one type of rotary engine; as the adjective "rotary" descirbes the mere mechanical aspects of the engine.
Bamchucknorris 2 weeks ago
@Bamchucknorris No, I'm not confused.. you are. The engine shown in this vid. is a "KKM" not "DKM"
The Wankel DKM was a "Rotary" because its main shaft (E-shaft) was fixed AND ITS HOUSING ROTATES, Just like other types also refered to as "Rotary Type" as the original design "Piston-Rotary Type"
Wankel did not use the term "rotor" but correctly translates to "Orbiting piston" "Rotary" refers to the ROTATING HOUSING (DKM) NOT "ROTOR"
doktorbimmer 2 weeks ago
This comment has received too many negative votes show
@sergeant5027 same thing dumb shit
yfz450lrd 2 weeks ago
Comment removed
doktorbimmer 2 weeks ago
@yfz450lrd mate, rotary engine has pistons, wankel is pistonless...
Deksametazon1 2 weeks ago 25
This comment has received too many negative votes show
@Deksametazon1 you should do some research
yfz450lrd 2 weeks ago
@yfz450lrd Perhaps its you that should do some research, Rotary engines all have fixed Crank/Main Shaft regardless if they use pistons or not.
The engine shown here is a Wankel KKM type, it is not a Rotary
Wankel did invent a Rotary (the DKM) No one builds the DKM engine.
Mazda confuses the the non-technical folks by calling its version of the Wankel KKM a "Mazda Rotary"
doktorbimmer 2 weeks ago 2
This comment has received too many negative votes show
@Deksametazon1 there the same
prfinest9207 1 week ago
@prfinest9207 No, actually they are not the same.
doktorbimmer 1 week ago
@Deksametazon1 i dont know why u assume the wankel and rotary are two different engines cause there not. felix wankel invented the rotary engine, thus named after him. They have rotary pistons
prfinest9207 1 week ago
@prfinest9207 Wankels first design was a Rotary, the engine shown here is technically not a Rotary.
Rotary DOES NOT refer to the orbiting pistons, Rotary means the crankcase "rotates" because its crankshaft ( or eccentric shaft) is stationary.
doktorbimmer 1 week ago
@prfinest9207 Because they are different, the use of the term "rotary" applied to the Wankel motor is ambiguous, it only applies to Dr.Wankel's first design the DKM.
Wrong, the "Rotary engine" was invented by Felix Millet, not Felix Wankel. Millet is credited with the idea of a fixed crankshaft concept and his design was the first commercially produced.
Does your car have rotary brakes? or rotary ignition?
Although commonly used "rotor" is not the root of "rotary".. it means to rotate
doktorbimmer 6 days ago 4
@Deksametazon1 your a complete twat, rotary has no pistons no camshafts and no con rods come back when you have your facts right aii?
jokee131 12 hours ago
@jokee131 Your sorta right, they don't all have camshafts.. but they do have pistons and some have connecting rods too.
Felix Millet invented the Rotary engine long before the other Felix invented the Wankel engine, the Wankel does not have connecting rods but it does have Pistons (the funny triangle things that spin around) some folks call em rotors too. I guess you could call the eccentric shaft a camshaft even though it doesn't have valves.
doktorbimmer 9 hours ago
This comment has received too many negative votes show
@sergeant5027 Wankel IS rotary
GeneralG1810 2 weeks ago
@GeneralG1810 WRONG!
doktorbimmer 2 weeks ago
@doktorbimmer I dunno I helped pull aprt an engine from an old RX4 years ago and it looked ALOT like this. They started in the RE 100 (Rotary engine 100) were found in the Capella's and of course all of the RX series. They arent the same as their airplane counterparts of course but have always been refered to as a rotary.
GeneralG1810 2 weeks ago
@GeneralG1810 Yes, This is a Wankel KKM, All Mazda engines are Wankel KKMs or variation of them.
Yes, they (Wankel KKM) are not the same as old aircraft Rotary.
No, the KKM is not a "Rotary Engine" it has a spinnng mainshaft.
Wankels original design (the DKM) was a "Rotary Engine" its Mainshaft was fixed just like the old aircraft engine.. that where the name "rotary" comes from.
doktorbimmer 2 weeks ago 2
@doktorbimmer Isnt that a RADIAL engine???
GeneralG1810 2 weeks ago
@GeneralG1810 No, Radial has conventional set-up w/ a rotating crankshaft and fixed crankcase and cylinders.
doktorbimmer 2 weeks ago
Why would someone dislike? Seems retarded.
Nice explanation.
i7fan 1 month ago
this engine... IS TOO DAM COOL
PhildeCritic 1 month ago
This helped me very much to understand the operation of this engine and others as well. Testing today.
andyfenty1 1 month ago
how about there power. is it rotary engine more powerful than any like piston engine?
tansan143 1 month ago
@tansan143 Well, actually, I heard that a rotor is about 3 piston strong, (mean s a 2 rotored wankel worths an i6, a V6, or a boxer 6cyl engine, but the capacity is the most important at Wankel vs Otto engine comparements. BUT I'M NOT SURE.
SaabyHun97 1 month ago
@SaabyHun97 tnx.. 4 the info.
tansan143 1 month ago
I've had one of these mounted to a VW transaxle for over 27 yrs now and it still runs like new, smooth, powerful and dependable. Stock with 4 barrel carb, 12A and short exhaust(real hot too) with two mufflers. Love it. The whole block is 12"X16" and was installed by two guys lifting and sliding it onto the trans. Hangs right off the trans like a VW boxer engine too. Great design.
saxmanchiro 1 month ago
wow and I still remember this music from Ford animation
Mgis90 1 month ago
Fuck the dude who invented the rotary engine was so much more creative than the guy who invented the piston engine.
I mean this shit is almost surreal.
johnyringoz 1 month ago
fuckin engines
klatsios94 1 month ago
Damn those apex seals
hdelsol4 1 month ago 28
So... Would this would be able to seal and not wear out quickly?
BMLarson93 1 month ago 8
Japanese are cool.
But germans are cooler :P
thec00ny 1 month ago 7
i saw a lot of coolent jackets but what about oil?
boostboss357 1 month ago
i typed ENGINE and i was sent here
evildead818 1 month ago
This comment has received too many negative votes show
Makes my 350 ci seem like a piece of cake to deal with
lawrencerodeback 1 month ago
Made in Germany... the best
kbaba1001 1 month ago 10
This comment has received too many negative votes show
@kbaba1001 and perfected in japan even better
negusjuda 1 month ago
@negusjuda Perfected??? Mazda appex seals don't fail anymore?
doktorbimmer 1 month ago 8
Good quality animation, but not enough attention paid to the intake & exhaust aspects of the process.
paspax 1 month ago 4
This comment has received too many negative votes show
Thats why i lov my car
chivabh 1 month ago
Nice.
Charlozz123 1 month ago
that's really cool, thanks
BLUEMAN241632 1 month ago
This comment has received too many negative votes show
spirograph much?
urbanmustang 1 month ago
What would the rpm be?
Knowwon249 1 month ago
amazing
cdball111 1 month ago
This comment has received too many negative votes show
Anyone ever play with a Spirograph?
calibermoon 1 month ago
This comment has received too many negative votes show
this is fucking gay long live 2 strokes
Motoxboxsleepin 1 month ago
@doktorbimmer Really? Shoot, my bad haha. I always thought it was the rotary engine!
rittboy8u 2 months ago
This comment has received too many negative votes show
@rittboy8u a wankel engine is a type of rotary, the term rotary is a broad definition of engines
klikhalno 3 weeks ago
@klikhalno The Wankel engine used today is not a rotary.. Its a "Kreiskolbenmotor" that when correctly translated means "Circular Piston Motor" The confussion starts with Wankels earlier version with a rotating housing called Drehkolbenmotor that was abandoned. The Rotary type engine had already been invented in France with a layout similar to the Radial Type but with a fixed crankshaft and rotating cylinders. Mazda has mis-used the "Rotary" name to simply get out of paying Wankel patent fees
doktorbimmer 3 weeks ago 5
@doktorbimmer dammit wikipedia, leading me astray again T.T
klikhalno 3 weeks ago
Thanks Matt, nice animation but.. just a reminder, its not really a rotary engine, a rotary engine looks like a radial type but with a fixed crankshaft and the cylinders spinning around it. This is a Wankel engine.. its called that because its patented just like Diesel, Otto, or Sterling
doktorbimmer 2 months ago 13
This comment has received too many negative votes show
@doktorbimmer Wankel engines are a subset of rotary engines, more specifically it's a type of pistonless rotary engine. Though you are correct that it's not a generalized rotary engine as that used to usually refer to the piston rotary engine you described.
UCMolosser 1 month ago
@UCMolosser No and Yes, the type shown here is a Wankel Engine, Wankel partnered with NSU and sold licenses to major manufacturers such as Audi, Mercedes, GM and to Toyo Kogyo (parent company of Mazda) both NSU-Wankel and Mazda continued to file for numerous patents for refinements of the basic engine. As a result of this Toyo Kogyo penned the name "Mazda Rotary" to its version of the Wankel in markets to avoid any implied conflict with exsisting patents. The "Rotary Type Engine" has pistons.
doktorbimmer 1 month ago 12
This comment has received too many negative votes show
@doktorbimmer I agree entirely, my meaning is simply that it is fair to call a Wankel engine a pistonless rotary engine.
UCMolosser 1 month ago
@UCMolosser Yes, its always best to be alittle more specific than just "rotary" its even applied to types of steam piston engines too adding even more confusion, even saying "Mazda Rotary" would be more correct useage, someone looking for a video about Rotary engines might be confused.
doktorbimmer 1 month ago 10
WOW! Genius idea! Who invented this shit?
amirbk60 2 months ago
@amirbk60 Jah! Herr Wankel in Germany invented it!
doktorbimmer 2 months ago 2
Does anyone here know of an IOCIDE-??? Rotary engine animation on youtube?
dataDyne6 2 months ago
"I can do whatever a piston engine does, just with more fuel and less torque."
10072018 2 months ago 11
It's wankel, not rotary!
theshoeburger 2 months ago 12
@theshoeburger same shit
thebmr321 2 months ago
mmmmmmmmm dorritos
19400az 2 months ago
Comment removed
maso070 2 months ago
how often do the apex seals have to be changed
aymanesb 2 months ago 4
so mazda engines are powered by dorritos?
ifad69 2 months ago 9
@ifad69 precisely but only RX7s and RX8s i believe
thebmr321 2 months ago
wow.. amazing piece of engineering...and wonder why it needs more coolant jackets working alot at high pressures.......but one bad problem is takes alot of fuel...but still japs know what there doing
KingAhmed187 2 months ago
Informative video. However it's also called the Wankel engine.
VintageTopHat 2 months ago 6
Good job on the animation!
BionicFusion 2 months ago
Respect :) Beautiful and very helpful in understanding it.
DumbOldFart 2 months ago
Respect :) Beautiful and very helpful in understanding it.
DumbOldFart 2 months ago
why does it eat A LOT OF GAS?
lote1234567891011 2 months ago 2
@lote1234567891011 a four cylender 4 stroke motor only fires 2 times in one rotation of the crank where a four cylender rotary fires 24 times in a single crank rotation. i think corect me if im wrong as i am quite drunk at the moment.
andrewbthomson 2 months ago
And ya they burn through fuel but they're fuckin reliable mines 30 years old all stock 250000 Kms just starting to put money into it now, they're for cruisin not everyday driving u want good mileage in a sports/classic car it limits your options
ISmokeKwon 2 months ago
I love my 82 rx7 rotary all the way
ISmokeKwon 2 months ago
COOLANT JACKETS
rotarychainsaw 2 months ago 30
@neymoura Google is your friend there, a 1.3 liter rotary engine will get you like 15mpg.
Z2theONA 2 months ago
@Z2theONA Yes, but it makes like 400 HP.
SAFJoao 2 months ago