Vengeance Power Engine - The "better wankel"
 

I never saw this until today when i came across it.

Here's something to get you interested:
"The engine was designed to alleviate one of the worst flaws of the Wankel rotary design, the rapid expansion of combustion chamber volume after ignition, reducing the amount of physical work that can be done with each stroke."

In all there are only nine moving parts but the model shown is capable of 550 HP and 2500 lb-ft of torque at 1200 RPM.

Vengeance Power Engine Design - '09 SAE World Congress

interesting overall design i think, any opinions, thoughts? premix or no? 0w10 good? saw a bird today?

edit: apparently no transmission is needed...according to their booth sign. wondering if they are looking at more then just the auto segment, i would guess yes but not sure yet (reading)

kevin.

Interesting.....sure is purdy too! .......oh, and a bird shit on my car today.

I'll have to read up more on it.

thats what im doing right now, if i find any good links ill post or add to original post. No transmission is interesting.

here's popular mechanic's view/opinion:
"While close in concept to the Wankel rotary, this engine is a completely different animal. Picture a paddle wheel that rotates in an elliptical drum. The paddles move in and out of the drum and stay sealed with the outer case, thanks to the natural centrifugal force that pulls them outward. The intake and exhaust ports are in the side of the case—like the current Mazda rotary—and as in Mazda's engine, compression occurs as the air is pushed to the point where the inner drum travels closest to the case. Fuel is injected, a spark plug fires, and the resulting expansion pushes the wheels along. The company says that it can easily run on diesel fuel and offers a lot of torque due to the length of those paddles. (Think of the paddle as a lever on the crank.) It's best suited for stationary power generation since the maximum rpm is 1200. Its outward size was about the same as a big-block V8, but it had a lot fewer parts and it made a claimed 551 hp at 1200 rpm. This is the first time the company has shown the engine to the public. "

if the bold part is true, there's gotta be a way to move the powerband still not sure if it would be any good in a car tho.

kevin.

I have been saying that for years.

Make the Rotory more oval and you get more efficentcy and zero emissions.

That looks like the guy I met at Seven Stock.

yea i always figured thats why they dont "upsize" the rotary, too much airspace available, unfortunately to get rid of the space and go more oval i dont think the triangle will work altho the rotor isn't really a triangle anyway, but you know what i mean.

I wish i had some videos or something of some mazda rotary testing, you know how many different ideas they have probably tried? The motor is so young you know "hardware" change ideas must come around i just wish i could see some experimental ones so i can see how it got where it is now, rather then just watching the consumer timeline.

kevin.

is the 16x prototype we saw (there were photos floating around) longer or "more oval" as well as larger?

it is taller giving it a greater eccentricity to provide more torque

series hybrid.

use a downscaled version of this to power really high-powered electric hub engines in each wheel.

very applicable to cars of the future.

they better have some darn good seals on those vanes . Think carbon buildup .....