Wow, what a work! Well done! You have accomplished a fantastic job! Your engine number 15 is very similar to the one I've been struggling to build. It looks like the rotary engine designed by Franchot, a long time ago. Did you build all of the engine parts by yourself? What about the sealing, is it possible, in your opinion, to get them working with direct injection of diesel/biodiesel?
Truly a labor of love. The machining is quite intense. You really must have skill to be ablt to do that at home. I envy people with home shops--I would so like to join you in an endeavor like this. Do you really do paper CAD? I couldn't live w/o Solidworks. That's $7,899 for one seat of the software.
Thanks. I have used Solidworks before, but I prefer open source software. I have dropped Windows in favor of LINUX, and I'm now benefiting from the many free applications that are available for it.
I continue to get allot of requests for blueprints & more detailed information. Note that it's all posted on the "Open_RotaryEngine" Yahoo! group. There are hundreds of files there including: sketches, code, schematics, pictures, commentary, etc.
I was working on another video, but it was really just more of the same, so I set it aside. I'll try to post some more material, and snippets on the Yahoo group when I get a chance. There are some people working on an animation, and I'll post it as soon as they finish it.
NOTICE: I've finally posted a paper on the theory of operation, and a proposed powerplant application. It's a first draft, and it's incomplete, but it's a start. It's up on the Yahoo! group. I always try to reply to all the messages that I receive, but note that it may take me a week, or more to do so, so please be patient. Thanks for all your comments, and feedback.
Well, the majority of ICE applications are in transportation. The external combustion engines that I'm aware of have various disadvantages such as: slow starting & warm-up issues, slow acceleration, etc. There's a Yahoo! group "Open_RotaryEngine" with drawings & stuff.
One more question. If model 15 ran well like you say, and the only issue was lubrication, would it still need lubrication if it were just an air engine? Could the air serve as a form of lubricant - like a tiny pocket of air slipping through the seals? Thanks
Lubrication is not the only issue, but mitigating friction & wear is certainly the biggest issue that's holding back most rotary engine designs. I did experiment with some of the techniques that are used in air bearings as you mentioned, but they require great precision, cleanliness & mechanical stability. A big design challenge & a difference between air engines & ICEs is the large temperature changes & material issues (such as expansion) that arise from this.
Hi RotaryICEman. Could you please tell me a bit more about model 15? Success? Failure? I am currently building a compressed air version of this principle.
Model 15 is based on the old, classical, rotary vane architecture which is used in so many pumps. I later switched from internal to external vanes so that I could modulate vane engagement & so that I could replace the vanes & seals without a complete engine teardown. It was built out of steel, brass, bronze, and aluminum (before I adopted graphite) so it required 2-stroke fuel. It was a simple, quiet, smooth running design, but lubrication was a problem. (continued)
(continued) I did allot of testing using compressed air & it would be a very good design for pumps & air engines. There are springs between the 2 vanes pushing them outwards. Note that this region becomes a varying volume as it rotates & that it could be made much larger, opening up the possibility for a number of other interesting uses. Good luck with your design.
Thank you for your feedback. Very helpful. I really enjoy watching your videos. In light of the current energy/fuel crisis and global warming have you considered focusing your knowledge and skills towards a non combustion engine? All your designs would work so well with compressed air!!!
Many are developing air motors & most are much further along than I could ever be; I'm just a guy in a garage. I feel that a more efficient ICE is more urgently needed. It's a more difficult task than developing air motors. Keep in mind that compressed air is not really a source of energy but rather a means of storing energy like a battery. In all likelyhood, the air will be compressed (not very efficiently) with energy that ultimately comes from burning some sort of fuel.
I've abandoned Plexiglas & Lexan because plate glass is more stable & rigid. I've tested plastic, glass & metal covers with both graphite & metal rotors. The seals are spring-loaded graphite inserts. Only they contact the glass cover. They seal well (without a drop of oil!), but they don't wear very well, especially the corners. Any dust, or grit in the air can cause severe seal damage! Most people mix oil with the fuel which helps allot, but it's a dead-end solution.
Nice work, RotaryICEman. Would it much better if we form a club of rotary engine enthusiasts leading to rotary engine production? I for one have a rotary engine of my own given free in the internet.
I agree that things would progress much faster with a coordinated effort, but I've tried in the past, without success. It's very difficult to reach consensus among a group of people with different agendas, skill levels, etc. I think that the best that we can do is to share our ideas & test results, etc. in forums such as these. You should mention your design in my 'Model 32' video which gets the most viewership & also on the 'Open_RotaryEngine' group.
much respect. Thus stuff inspires me and designers and machinists like yourself will be the ones to move forward and break free from the shackles of automakers.
NOTICE: I finally started posting the sketches, pictures, schematics, source code, etc on the Yahoo! Group: 'Open_RotaryEngine'. I have hundreds of files to post, so it'll take me a while to finish it. Please read my commentary there BEFORE attempting to build your own engine, or before submitting any questions. Have fun. -Dave
Excuse me if I seemed rude and 4 that I apologize. BUT flying is not practical in the near or semidistant future. It would b cool but its not going 2 happen in ur life time, sorry. And why in he hell r u talking about flying. The discorse was about ev vs ce not cars and plains. Whats wrong with u? Look look do u just want to do this all at 1nc? PM me and I'll show u how wrong u r. No offence this time:)
Thats funny!! "its practical limits" We r not even close 2 any kind of limit. U really think 70mph 110ishkmh is the limit. Thats very myopic of u. Obviously u know nothing about aerodynamics or mechanical design 2 say those.... well....VERY stupid things.
U fail 2 realise that EVs utilize electro magnatizm for propultion. ICs use thermal xpanshun. The latter is a stronger force output given an input. Meaning a Kg of H2 burnt gives more energy than if you extract the electrons and produce electricity. So no EVs r not the future because cars r going 2 go fastr and fastr and u will escape EVs optimal eficience range. 4 inner city travel yes 4 everthing else no.
The ICE market is driven by automakers. Most alternative ICE designs are just 'different', but not necessarily better. Many are impractical. Most target power density & few specifically address efficiency. Cash strapped automakers living day-to-day, heavily vested in reciprocating technology/tooling won't stick their necks out on any radical new technology risk; there's nothing in it for them. Only market demand based competition or legislation can overcome this hurdle.
A agree, however, all things considered, I think that it'll be a while before Fuel Cells & EVs become competitive with ICEs on a level playing field.
Rotaries are thermodynamically disadvantaged compared to reciprocating designs due to their larger surface area. This is offset by the absence of lossy cams, linkages & crankshafts. Also, piston velocity approaches zero near TDC when combustion temp & losses are their greatest. In rotaries, the rotor velocity is constant.
Saludos Argentina desde California. I don't have commercial intents for these ideas, but some others do. One person plans to sell working models. Blueprints are not available yet, but I'm working on it. People have been building these on their own, but they're not easy to make. It requires allot of skill to get good fit & compression. I try to help with any questions. Please see my other videos & comments for more information.
In 1968-69 in college I saw the Wankel in Popular Science and similar mags, and decided I could make a better rotary. I dropped out of school to get a patent on my design, but eventually got discouraged & never went back to it, altho I did amass a lot of data on other rotaries such as the Huff, Kauertz, Amrien and others. Was fascinated with them. I still think I had the best engine, except it was by far much more difficult to machine than others.(cont.)
Rotaries may be better in one respect, worse in others such as emissions and durability, but what made me give up on them was EVs... electric vehicles... no pollution, a single moving part, quiet, no transmission, very durable, powerful, and super efficient: typically a penny per mile for electricity, or 130 mpg equivalent.
Gasoline, ethanol, biodiesel, etc., they all produce 18- 20 lbs. of CO2 per gallon of fuel, and that has to stop.
I've worked with photovoltaics & fuel cells. I preffer clean, efficient EVs & HEVs. However the technical, financial & practical realities of EVs, ICE's, oil, Hydrogen, batteries, etc. are well known & cannot be ignored. Electricity comes mainly from hydrocarbons.
People tend to erroneously associate all rotaries with Wankels (whose poor efficiency & emissions is guaranteed by design). ICEs & their infrastructure are not going away anytime soon. We must keep innovating.
"electricity comes from hydrocarbons"... NOT true, at least in much of the US, especially California. He have lots of clean energy-- wind, solar, hydro, geothermal, and some nuclear that's arguably clean-- at least it's not making greehouse gases. Besides, the typical EV is far more efficient than an ICE. The small amount of power it does use comes from stationary generators that are far easier to "clean" than moving vehicles that can be running improperly 4 yrs between smog tests & tunes.
(cont.) EVs don't idle at stop lights, stop signs, or heavy traffic, they are far more efficient at the typical slow speeds at which ICES get miserable mileage. ICEs must have their fuel delivered in huge, noisy, smelly tanker trucks that use up extra fuel during delivery and that contribute to the congestion on highways. Power belivery on grid lines is highly efficient... approx. 80-90% depending on distance. (cont.)
There R Hore EVs here N Calif. than anywhere in the world. I have at least 2 public charging stations within walking distance of me. EVs don't need gallons of oil per year for lube, need new brakes far less often due to regen braking, no ail or oil filters and other non-recyclables. Engines are far noisier, and sound pollution has been linked to a variety of health problems.(cont.)
EVs need no transmission rebuilds, tune-ups, head gasket problems, etc., that require lots of labor and add to landfill waste. Tho EVs CAN use grid power, the practical reality is that EV builders & converters always urge EV owners to install solar roofs on their homes to charge their cars, and many do. I am in the process of converting one of my Bimmers to EV, and when I'm finished as soon as possible will install solar at home.
I have a love for the elegance, simplicity and artistry of rotary engines... a rotary engine to me is akin to a dance, a song, or a strategy game. But the intellectual and emotional attraction I have for rotaries is not enough reason to continue to burn hydrocarbons, and send money to countries that finance terrorism. I see that same kind of elegance, simplicity and artistry in EVs, and they are an answer to a variety of environmental, political, and social problems.
If rotary engines are to be used at all, I would enjoy seeing the very clever and non-polluting vehicles made in France, India and Australia that run on air motors. There are vids of them on YouTube. One of the whimsical advantages of air cars is that the decompressed air that powers the motor is not HOT, but rather CHILLY, and so the unfiltered air motor exhaust can be used to air condition the vehicle. Wow.
It's my understanding that Ethanol and Biodiesel are carbon neutral. That is, the crops to grow the feedstock, ABSORBS carbon from the air which is put back when burned. Gasoline, on the other hand, is carbon that was absorbed and sequestered in the ground millions of years ago.
If you check my videos you'll see I've been experimenting with piston, two stroke, model aircraft engines. This includes running them on kerosene and Biodiesel. Along the way, I stumbled on a potential, two stroke fuel that needs NO oil in the fuel for lubrication.
This fuel could potentially burn 100% with only water and some very minor pollutants, (compared to current fuels) coming out of the exhaust. Why two stroke? Very low parts count and in this case, no need for spark plugs and all the electics involved. Along with a very high power to weight.
Lower engine weight for the same power leads to less fuel burned per mile etc. Lower parts count leads to lower cost and less energy expended making the parts. Low parts count leads to high life and durability.
Wow, you have lots of vids! Maybe you can create a fuel recipe optimized for Model 32. I've tried 2-stroke mixes; they lubricate & seal well (outperforming gases such as Propane) but emissions suffers. Emissions really plague rotaries & especially piston 2-strokes whose well-known scavenging problems require complex remedies. I've tried improving them for years with no success. Some are experimenting with vegi-diesel versions of my designs but there are issues to overcome.
Thanks. Yeah, I've taken apart a handfull of rotary vane pumps & one can't help but imagine what if... It has taken me over 20 years to get my designs to the point of "functional curiosity". Now, a small but growing world-wide community is joining the effort & I hope that the design will rapidly evolve into something practical.
When I investigated this avenue I read that a guy in Rochester in the US back in the thirties built one along the same lines & fitted it to a motorcycle & rode it around for a while before concluding that parts wore out too quickly. Modern materials are able to overcome that now I guess.
Countless prior attempts go back over 100 years, but most (working) alternative designs don't offer much other than just being 'new & different' & few focus on efficiency. Improved manufacturing methods, materials such as ceramics & rising fuel costs are renewing interest. Auto makers living day-to-day won't likely embrace risky, new, long-term designs unless forced to do so by competition or legislation. I think that emerging economies will probably lead the way.
Thank you. This work has been carried out on & off over a 25 year period. Whenever I loose energy & drive or am otherwise distracted, I set it aside. I always seem to come back to it; it's allot of fun & I'm making good progress. These are open source designs inspired by the success of Linux. Others are independently working on them in Europe, Asia & South America. -Dave
Keep up the good work! If you work out how to make a valveless model, it would create a 'very' high speed motor indeed. It would be interesting to see how these perform in model speed boats etc.
Buying experience
4mulas 8 months ago
Wow, what a work! Well done! You have accomplished a fantastic job! Your engine number 15 is very similar to the one I've been struggling to build. It looks like the rotary engine designed by Franchot, a long time ago. Did you build all of the engine parts by yourself? What about the sealing, is it possible, in your opinion, to get them working with direct injection of diesel/biodiesel?
2ndsonof8 1 year ago
looks like a few promising rotary compressor designs!
chabbalato 1 year ago
This is gonna kill the Wankel.
Electrorod1 2 years ago 2
Truly a labor of love. The machining is quite intense. You really must have skill to be ablt to do that at home. I envy people with home shops--I would so like to join you in an endeavor like this. Do you really do paper CAD? I couldn't live w/o Solidworks. That's $7,899 for one seat of the software.
BlakeMason2 2 years ago
Thanks. I have used Solidworks before, but I prefer open source software. I have dropped Windows in favor of LINUX, and I'm now benefiting from the many free applications that are available for it.
RotaryICEman 2 years ago
I continue to get allot of requests for blueprints & more detailed information. Note that it's all posted on the "Open_RotaryEngine" Yahoo! group. There are hundreds of files there including: sketches, code, schematics, pictures, commentary, etc.
RotaryICEman 2 years ago
ICEMAN.....make more videos!!!!
bigqman123 3 years ago
I was working on another video, but it was really just more of the same, so I set it aside. I'll try to post some more material, and snippets on the Yahoo group when I get a chance. There are some people working on an animation, and I'll post it as soon as they finish it.
RotaryICEman 2 years ago
NOTICE: I've finally posted a paper on the theory of operation, and a proposed powerplant application. It's a first draft, and it's incomplete, but it's a start. It's up on the Yahoo! group. I always try to reply to all the messages that I receive, but note that it may take me a week, or more to do so, so please be patient. Thanks for all your comments, and feedback.
RotaryICEman 3 years ago
If the target is a more efficient engine, why not to switch for external combustion engine?
Rotary engine could help to have more torque than usual Striling engines, and external burners help to burn all the fuel.
Rotary engine designs can help to have warmed and colled sectors to drive well hydrogen or helium gas during expansion and condensing.
Open a forum with draws?
kilowatt300 3 years ago
Well, the majority of ICE applications are in transportation. The external combustion engines that I'm aware of have various disadvantages such as: slow starting & warm-up issues, slow acceleration, etc. There's a Yahoo! group "Open_RotaryEngine" with drawings & stuff.
RotaryICEman 3 years ago
One more question. If model 15 ran well like you say, and the only issue was lubrication, would it still need lubrication if it were just an air engine? Could the air serve as a form of lubricant - like a tiny pocket of air slipping through the seals? Thanks
JakesArnoose 3 years ago
Lubrication is not the only issue, but mitigating friction & wear is certainly the biggest issue that's holding back most rotary engine designs. I did experiment with some of the techniques that are used in air bearings as you mentioned, but they require great precision, cleanliness & mechanical stability. A big design challenge & a difference between air engines & ICEs is the large temperature changes & material issues (such as expansion) that arise from this.
RotaryICEman 3 years ago
Hi RotaryICEman. Could you please tell me a bit more about model 15? Success? Failure? I am currently building a compressed air version of this principle.
JakesArnoose 3 years ago
Model 15 is based on the old, classical, rotary vane architecture which is used in so many pumps. I later switched from internal to external vanes so that I could modulate vane engagement & so that I could replace the vanes & seals without a complete engine teardown. It was built out of steel, brass, bronze, and aluminum (before I adopted graphite) so it required 2-stroke fuel. It was a simple, quiet, smooth running design, but lubrication was a problem. (continued)
RotaryICEman 3 years ago
(continued) I did allot of testing using compressed air & it would be a very good design for pumps & air engines. There are springs between the 2 vanes pushing them outwards. Note that this region becomes a varying volume as it rotates & that it could be made much larger, opening up the possibility for a number of other interesting uses. Good luck with your design.
RotaryICEman 3 years ago
Thank you for your feedback. Very helpful. I really enjoy watching your videos. In light of the current energy/fuel crisis and global warming have you considered focusing your knowledge and skills towards a non combustion engine? All your designs would work so well with compressed air!!!
JakesArnoose 3 years ago
Many are developing air motors & most are much further along than I could ever be; I'm just a guy in a garage. I feel that a more efficient ICE is more urgently needed. It's a more difficult task than developing air motors. Keep in mind that compressed air is not really a source of energy but rather a means of storing energy like a battery. In all likelyhood, the air will be compressed (not very efficiently) with energy that ultimately comes from burning some sort of fuel.
RotaryICEman 3 years ago
Stupid question but how are you makeing a seal between the rotor and the lexan? Is it just tight tolerance?
justinbimmerman 3 years ago
I've abandoned Plexiglas & Lexan because plate glass is more stable & rigid. I've tested plastic, glass & metal covers with both graphite & metal rotors. The seals are spring-loaded graphite inserts. Only they contact the glass cover. They seal well (without a drop of oil!), but they don't wear very well, especially the corners. Any dust, or grit in the air can cause severe seal damage! Most people mix oil with the fuel which helps allot, but it's a dead-end solution.
RotaryICEman 3 years ago
Nice work, RotaryICEman. Would it much better if we form a club of rotary engine enthusiasts leading to rotary engine production? I for one have a rotary engine of my own given free in the internet.
rotaryinnovator 3 years ago
I agree that things would progress much faster with a coordinated effort, but I've tried in the past, without success. It's very difficult to reach consensus among a group of people with different agendas, skill levels, etc. I think that the best that we can do is to share our ideas & test results, etc. in forums such as these. You should mention your design in my 'Model 32' video which gets the most viewership & also on the 'Open_RotaryEngine' group.
RotaryICEman 3 years ago
much respect. Thus stuff inspires me and designers and machinists like yourself will be the ones to move forward and break free from the shackles of automakers.
JakesArnoose 3 years ago
NOTICE: I finally started posting the sketches, pictures, schematics, source code, etc on the Yahoo! Group: 'Open_RotaryEngine'. I have hundreds of files to post, so it'll take me a while to finish it. Please read my commentary there BEFORE attempting to build your own engine, or before submitting any questions. Have fun. -Dave
RotaryICEman 3 years ago
GREAT JOB!!! And this was what youtube was intented for...
faridperez 3 years ago 2
Check my channel page & other videos for status updates.
RotaryICEman 3 years ago
Excuse me if I seemed rude and 4 that I apologize. BUT flying is not practical in the near or semidistant future. It would b cool but its not going 2 happen in ur life time, sorry. And why in he hell r u talking about flying. The discorse was about ev vs ce not cars and plains. Whats wrong with u? Look look do u just want to do this all at 1nc? PM me and I'll show u how wrong u r. No offence this time:)
23607 4 years ago
Thats funny!! "its practical limits" We r not even close 2 any kind of limit. U really think 70mph 110ishkmh is the limit. Thats very myopic of u. Obviously u know nothing about aerodynamics or mechanical design 2 say those.... well....VERY stupid things.
23607 4 years ago
U fail 2 realise that EVs utilize electro magnatizm for propultion. ICs use thermal xpanshun. The latter is a stronger force output given an input. Meaning a Kg of H2 burnt gives more energy than if you extract the electrons and produce electricity. So no EVs r not the future because cars r going 2 go fastr and fastr and u will escape EVs optimal eficience range. 4 inner city travel yes 4 everthing else no.
23607 4 years ago
The ICE market is driven by automakers. Most alternative ICE designs are just 'different', but not necessarily better. Many are impractical. Most target power density & few specifically address efficiency. Cash strapped automakers living day-to-day, heavily vested in reciprocating technology/tooling won't stick their necks out on any radical new technology risk; there's nothing in it for them. Only market demand based competition or legislation can overcome this hurdle.
RotaryICEman 4 years ago
A agree, however, all things considered, I think that it'll be a while before Fuel Cells & EVs become competitive with ICEs on a level playing field.
Rotaries are thermodynamically disadvantaged compared to reciprocating designs due to their larger surface area. This is offset by the absence of lossy cams, linkages & crankshafts. Also, piston velocity approaches zero near TDC when combustion temp & losses are their greatest. In rotaries, the rotor velocity is constant.
RotaryICEman 4 years ago
hi, i am in argentina and i am very interesting in your desing, you sale any plans or parts for make amy model thanks
mcamem 4 years ago
Saludos Argentina desde California. I don't have commercial intents for these ideas, but some others do. One person plans to sell working models. Blueprints are not available yet, but I'm working on it. People have been building these on their own, but they're not easy to make. It requires allot of skill to get good fit & compression. I try to help with any questions. Please see my other videos & comments for more information.
RotaryICEman 4 years ago
In 1968-69 in college I saw the Wankel in Popular Science and similar mags, and decided I could make a better rotary. I dropped out of school to get a patent on my design, but eventually got discouraged & never went back to it, altho I did amass a lot of data on other rotaries such as the Huff, Kauertz, Amrien and others. Was fascinated with them. I still think I had the best engine, except it was by far much more difficult to machine than others.(cont.)
billdale1 4 years ago
Rotaries may be better in one respect, worse in others such as emissions and durability, but what made me give up on them was EVs... electric vehicles... no pollution, a single moving part, quiet, no transmission, very durable, powerful, and super efficient: typically a penny per mile for electricity, or 130 mpg equivalent.
Gasoline, ethanol, biodiesel, etc., they all produce 18- 20 lbs. of CO2 per gallon of fuel, and that has to stop.
billdale1 4 years ago
I've worked with photovoltaics & fuel cells. I preffer clean, efficient EVs & HEVs. However the technical, financial & practical realities of EVs, ICE's, oil, Hydrogen, batteries, etc. are well known & cannot be ignored. Electricity comes mainly from hydrocarbons.
People tend to erroneously associate all rotaries with Wankels (whose poor efficiency & emissions is guaranteed by design). ICEs & their infrastructure are not going away anytime soon. We must keep innovating.
RotaryICEman 4 years ago
"electricity comes from hydrocarbons"... NOT true, at least in much of the US, especially California. He have lots of clean energy-- wind, solar, hydro, geothermal, and some nuclear that's arguably clean-- at least it's not making greehouse gases. Besides, the typical EV is far more efficient than an ICE. The small amount of power it does use comes from stationary generators that are far easier to "clean" than moving vehicles that can be running improperly 4 yrs between smog tests & tunes.
billdale1 4 years ago
(cont.) EVs don't idle at stop lights, stop signs, or heavy traffic, they are far more efficient at the typical slow speeds at which ICES get miserable mileage. ICEs must have their fuel delivered in huge, noisy, smelly tanker trucks that use up extra fuel during delivery and that contribute to the congestion on highways. Power belivery on grid lines is highly efficient... approx. 80-90% depending on distance. (cont.)
billdale1 4 years ago
There R Hore EVs here N Calif. than anywhere in the world. I have at least 2 public charging stations within walking distance of me. EVs don't need gallons of oil per year for lube, need new brakes far less often due to regen braking, no ail or oil filters and other non-recyclables. Engines are far noisier, and sound pollution has been linked to a variety of health problems.(cont.)
billdale1 4 years ago
EVs need no transmission rebuilds, tune-ups, head gasket problems, etc., that require lots of labor and add to landfill waste. Tho EVs CAN use grid power, the practical reality is that EV builders & converters always urge EV owners to install solar roofs on their homes to charge their cars, and many do. I am in the process of converting one of my Bimmers to EV, and when I'm finished as soon as possible will install solar at home.
billdale1 4 years ago
I have a love for the elegance, simplicity and artistry of rotary engines... a rotary engine to me is akin to a dance, a song, or a strategy game. But the intellectual and emotional attraction I have for rotaries is not enough reason to continue to burn hydrocarbons, and send money to countries that finance terrorism. I see that same kind of elegance, simplicity and artistry in EVs, and they are an answer to a variety of environmental, political, and social problems.
billdale1 4 years ago
If rotary engines are to be used at all, I would enjoy seeing the very clever and non-polluting vehicles made in France, India and Australia that run on air motors. There are vids of them on YouTube. One of the whimsical advantages of air cars is that the decompressed air that powers the motor is not HOT, but rather CHILLY, and so the unfiltered air motor exhaust can be used to air condition the vehicle. Wow.
billdale1 4 years ago
It's my understanding that Ethanol and Biodiesel are carbon neutral. That is, the crops to grow the feedstock, ABSORBS carbon from the air which is put back when burned. Gasoline, on the other hand, is carbon that was absorbed and sequestered in the ground millions of years ago.
hopeso 4 years ago
If you check my videos you'll see I've been experimenting with piston, two stroke, model aircraft engines. This includes running them on kerosene and Biodiesel. Along the way, I stumbled on a potential, two stroke fuel that needs NO oil in the fuel for lubrication.
hopeso 4 years ago
This fuel could potentially burn 100% with only water and some very minor pollutants, (compared to current fuels) coming out of the exhaust. Why two stroke? Very low parts count and in this case, no need for spark plugs and all the electics involved. Along with a very high power to weight.
hopeso 4 years ago
Lower engine weight for the same power leads to less fuel burned per mile etc. Lower parts count leads to lower cost and less energy expended making the parts. Low parts count leads to high life and durability.
hopeso 4 years ago
And, this fuel/ignition system could be used on a rotary for even greater efficiency and simplicity.
hopeso 4 years ago
Wow, you have lots of vids! Maybe you can create a fuel recipe optimized for Model 32. I've tried 2-stroke mixes; they lubricate & seal well (outperforming gases such as Propane) but emissions suffers. Emissions really plague rotaries & especially piston 2-strokes whose well-known scavenging problems require complex remedies. I've tried improving them for years with no success. Some are experimenting with vegi-diesel versions of my designs but there are issues to overcome.
RotaryICEman 4 years ago
You know I had the same inspiration when I took apart a rotary refrigeration compressor about 10 years ago. Keep up the good work m8!
phil955i 4 years ago
Thanks. Yeah, I've taken apart a handfull of rotary vane pumps & one can't help but imagine what if... It has taken me over 20 years to get my designs to the point of "functional curiosity". Now, a small but growing world-wide community is joining the effort & I hope that the design will rapidly evolve into something practical.
RotaryICEman 4 years ago
When I investigated this avenue I read that a guy in Rochester in the US back in the thirties built one along the same lines & fitted it to a motorcycle & rode it around for a while before concluding that parts wore out too quickly. Modern materials are able to overcome that now I guess.
phil955i 4 years ago
Countless prior attempts go back over 100 years, but most (working) alternative designs don't offer much other than just being 'new & different' & few focus on efficiency. Improved manufacturing methods, materials such as ceramics & rising fuel costs are renewing interest. Auto makers living day-to-day won't likely embrace risky, new, long-term designs unless forced to do so by competition or legislation. I think that emerging economies will probably lead the way.
RotaryICEman 4 years ago
Good stuff. Does the new Mazda RX 8 still uses the rotary engine?
durian789 4 years ago
Yes. They've made allot of progress with seals & reliability. Their power density is high, but unfortunately, efficiency has not improved very much.
RotaryICEman 4 years ago
Super Cool Vid ! Boy, there's alot of brain power. Where did you get all the energy and drive ??
PackratCND 4 years ago
Thank you. This work has been carried out on & off over a 25 year period. Whenever I loose energy & drive or am otherwise distracted, I set it aside. I always seem to come back to it; it's allot of fun & I'm making good progress. These are open source designs inspired by the success of Linux. Others are independently working on them in Europe, Asia & South America. -Dave
RotaryICEman 4 years ago
I just posted a new video on the latest design.
RotaryICEman 4 years ago
Thanks for sharing! Any vids on working models?
pawelebay 5 years ago
Yeah. Check out my 'Experimental Rotary Internal Combustion Engines' vids. There, you can see several models in action. -Dave
RotaryICEman 5 years ago
esse eh o fututro do motor a combustao interna...
do it...
manoalkinho 5 years ago
you have a brilliant mind. keep up the great work!
funkncreative 5 years ago
that is the coolest idea ive seen with the seal in the housing instead of the normal apex seal deal
giantsocks 5 years ago
Keep up the good work! If you work out how to make a valveless model, it would create a 'very' high speed motor indeed. It would be interesting to see how these perform in model speed boats etc.
jphdg 5 years ago