Scrapbook of Experimental Rotary Engines

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Scrapbook of Experimental Rotary Engines

Uploaded by: RotaryICEman
Video Description:
This is a follow-up to my previous Experimental Rotary ICEs video. It shows the family tree & close-ups of the prototypes that haven't been cannibalized for spare parts. The earliest sketches for some of these models date back to the early '80s. Work has been carried out since then whenever time & $ permits. Thousands of man-hours later & with the benefit of hindsight, many of these designs are admittedly naive. However, they were a necessary part of the learning process. The work continues & the current designs are more refined.
The latest model produces 1/5 horsepower on the dynamometer & it does so without requiring any lubrication, or a cooling system. Performance should improve with the next generation seals. Some models have been dry run (no combustion) for months at a time without any problems. The wear properties of graphite-on-polished-steel are truly unbelievable! The advantages of being able to modulate the vane engagement (for ganging up & throttle control) is very noteworthy.
Three new designs are currently on the drawing board. One uses a single rotor & 2 vanes to compress & burn the charge. In another version, the vanes pivot rather than slide. A third design uses graphite lined metal rotors & vanes. The purpose of this program is to develop more fuel efficient engines. These videos are intended to inspire & motivate interested parties into building their own prototypes for the benefit of all. -Dave

Tags for this video: alternative biodiesel combustion efficient energy engine experimental fuel gasoline hybrid hydrogen internal oil rotary

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Countless prior ... ( 11 months ago by RotaryICEman)

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.

Saludos Argentina ... ( 11 months ago by RotaryICEman)

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 ... ( 11 months ago by billdale1)

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 ... ( 11 months ago by billdale1)

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 ... ( 11 months ago by RotaryICEman)

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 ... ( 11 months ago by billdale1)

"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 ... ( 11 months ago by billdale1)

(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 ... ( 11 months ago by billdale1)

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 ... ( 11 months ago by billdale1)

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 ... ( 11 months ago by billdale1)

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 ... ( 11 months ago by billdale1)

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 ... ( 11 months ago by hopeso)

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 ... ( 11 months ago by hopeso)

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 ... ( 11 months ago by hopeso)

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 ... ( 11 months ago by hopeso)

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.

And, this fuel/ ... ( 11 months ago by hopeso)

And, this fuel/ignition system could be used on a rotary for even greater efficiency and simplicity.

Wow, you have lots ... ( 11 months ago by RotaryICEman)

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.

A agree, however, ... ( 8 months ago by RotaryICEman)

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.

The ICE market is ... ( 8 months ago by RotaryICEman)

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.

U fail 2 realise ... ( 7 months ago by 23607)

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.

Thats funny!! "its ... ( 7 months ago by 23607)

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.

Excuse me if I ... ( 7 months ago by 23607)

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:)

Check my channel ... ( 4 months ago by RotaryICEman)

Check my channel page & other videos for status updates.

GREAT JOB!!! And ... ( 2 months ago by faridperez)

GREAT JOB!!! And this was what youtube was intented for...

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