montando un wankel

[tifosaurus]

...I believe that if more companies take up serious R&D on Wankel engine and all the achievments of modern technology are exploited, then the Wankel engine will have a bright future, with all its remaining problems solved. But which company has the guts?

[tifosaurus]

...Kenichi Yamamoto, Mazda's Wankel Chief Engineer, said once that the engine's concept was not fundamendally wrong, but there weren't suitable machining processes and materials in existence in order to build the Wankel correctly.In other words, the engine was ahead of its time. However, people keep blaming it.

[tifosaurus]

I am angry...The Otto reciprocating engine has 130 years of research and development behind it, including two world wars (and we all know the amount of research and development that happened in 2nd WW especially) and hundreds of companies to work on it. Instead, the Wankel Rotary has only 53 years of R&D behind it and only one company to take it seriously (Mazda)...

[afhdfh]

What an incredibly beautiful engine!

[Huskymotard88]

Hiroshima?

It's nice to see such an unconventional engin, kept alive also nowadays, when emissions and costs reduction have become a must for major car producers.

So small and light!

Does someone knows the weight???

[extremepower90]

stupendo...piccolissimo e potente!e di facile riparazione

[buhrrito]

I Cant Belive Its Not Piston! (butter)

[adam3176]

They make it look so easy... oh wait it is easy...

[fuckedupsickfuckboy]

that's the 1 my rx7 has! ;-P eat your heart out bitch!

[caprimentle]

good job its easy to rebuild, your gonna need to do that alot with those engines.

[jake5680]

i love how it goes together in layers, so simple

[nebunu1force]

is there a roller bearing between the eccentric shaft and the rotor? if not... is it possible to fit a rotary with bearings? Tnx:D

[TheLightningStalker]

Too bad they're so expensive.

[keebordcowboy]

i got speachless.

you should put some music.

Psiton Engines Sux.. RO-Power.

This is the future man.

i want a peace of this in my ride.

:D

Awsome dud.

[bababacardi]

now that's a BigMac

[shaun928]

nice video, 5 stars!

[memeome]

What about MYT Engine?

[Cr3ativity]

Electric cars seem to stand at their peak nowadays. If only they created an engine that can generate electricity without the use of heat, magnets, or copper wiring. A: No cooling system is required. B: Persons who have a pacemaker will not die because of strong magnetic pulses. C: The car does not pollute. However, now we have to change around how power stations generate their electricity. Hence, power stations must also reduce their pollution, otherwise, the whole idea is inefficient.

[colinsberries]

that would be perpetual motion though. which means superconductors, friction free bearings and perfect vaccum chambers would all need to be invented and then applied. which would totally kick ass. but i don't see it happening :(

[bababacardi]

that's why all the rush to get a UFO dissasembled

;)

[Zerolagg]

Awesome, but i'd like to see how they test it!

[light4darkness]

A Wankel has 3 power strokes for each revolution of that traingular rotor. For a two rotor, it's 6 power strokes, like a 12 cylinder engine. The fuel efficiency is unfortunately due to the very large surface area of the rotors relative to a conventional piston engine, also like a 12 cylinder engine, and a diesel cannot be made because the combustion chambers would need to be too tiny to achieve the high compression of a diesel.

[keinikaidoh]

Sorry to correct you but it's actually 1 power stroke per revolution of the crank per rotor. (if it could even be called a stroke) so it's equivalent to a 4 cylinder engine. The draw back of the rotary is that it produces little torque at low rpm due to their shorter travel length of the crank journals. The new rx-8 has improved the fuel consumption(they claim 30%) problem by putting the intake and exaust ports on the side rotor housing instead.

[RatkoUSA]

Thanks for the video.

[bigrednumber]

any engine that makes 200 hp will use 200 hp worth of fuel. The truth is they are quite efficient. Thats why they work

[4Dmetricology]

30-40% efficient is not efficient. i dont care what colour you are

[Ziofbv]

Wankels are really effective, the only, unique, drawback they have, is the major fuel\oil consumption than an equivalent piston engine...but hell, theirs advantages outpays their drawbacks :-)

[mark4annie]

they have.... the Mazda RX8 hot car, super quick and reliable..

[matt9741399]

I love these things. Absolute genius. Now if only they could put one in a decent looking car!

[mungoesmad]

Shame it's an oil burner. Nice modular construction, theoretically no limited to the amount of rotors you could bolt together. It does solve the problem of turning the recipricating movment of a piston engine into a rotory one nicely. Build a 4 stroke wankel and the world will beat a path to your door. This is not the right time for a total loss oil system engine, CO2 emissions and all that.

[snowrocket]

Well technically a Wankel IS a four stroke engine that has SOME small two stroke characteristics. Mazda continues their research as does a company that used to be called Freedom Motors in the USA. Cool stuff!

[rotarynut71]

The Apex seals are spring mounted and therefore float against the rotor housing. There is just enough pressure on them to keep the rotor faces seperated. The apex seals are the weak link in the engine but that can be fixed using special seals like ceramic or titanium.

[asulca593]

im very curious about this engine. i would think that the apexes of each rotor would dig into the sides of the combustion chamber (from what i see in this video, they are not smooth edges) and cause damage.

[Avalanche1530]

wow thats an easy build

[SpeedingStudent]

Of course, rotaries use much fewer parts than a conventional reciprocating piston engine. Like 30-50 parts (depending on number of rotors), minus ancilaries (fuel pumps, alternators, spark plugs, etc.

VS. a conventional inline four DOHC engine's 400-700 parts count.

Fewer parts, means fewer parts to break or wear down.

The rotary is a work of engineering art.

And only Mazda could make it viable for the real world, of all the companies that tried, and failed. Mercedes among them.

[Avalanche1530]

doesn't the rotary engine burn oil also though?

[spikederailed]

The engine does burn some oil by design. Usually between .5-1 litre every 1600kilometers(1000 miles). The oil helps the engine keep compression and sealing. It also helps the rotor housing to stay smooth.

[TheLightningStalker]

That's about as much oil as an oil change on a piston engine.

[watthefreak]

damn i want that apex seal holder thingy and that engine stand

[tenekekutu]

super

[StegoMan]

genial