The Duke Engine (VERY COOL)

[ken572]

(ALL)

Enjoy:

http://www.gizmag.com/duke-engines-axial/33631/

Ken.

[JackF]

Vellly interesting. Where do you find these things?

Jack.

[ken572]

Vellly interesting. Where do you find these things?

Jack.

Hello Jack

I guess I just enjoy letting my retired mind wander

on the internet, and every now and then I find some

really cool STUFF to share..

Ken.

[magic9r]

Their power output rather than being impressive is a bit '80s when 100BHP/Litre became something of a standard for a mid to high performance engine.
I'm always impressed that people are impressed when manufacturers tell them something is impressive

[Gregc]

Actually I think this one is even cooler

http://liquidpiston.com/

[Magicniner]

Actually I think this one is even cooler

http://liquidpiston.com/

The drive train with 2 chains at 21 seconds shown being assembled is not the one shown running at 37 seconds, why would they do that and not explain it unless there was something funny going on?
No mention of emissions - that's because rotary engines have always been very powerful for their size/weight but have filthy emissions, this can be resolved by feeding the dirt back into the engine but that kills the power/efficiency
Maybe they should get together with Moeller Sky Car and Coates Rotary Valve Engines and build a Greater Than Unity Efficiency Machine, the same investors would probably like that too

[Herb Kephart]

The downfall of most of these rotary engines is lubrication between the valve plate, and whatever rotates against it. Enough lube to prevent seizure and you get excess oil consumption, if not, seizure eventually occurs. Back on the 60's, I made some prototype parts for the inventor of a variable compression barrel type engine- inventor Gerald Haddon. The only barrel type engine that showed any promise was one that used Ford valves (and pistons, if I remember) and was liquid cooled. It passed FAA tests and was approved for helicopter usage, with the main shaft vertical, but didn't show enough advantages to attract any Heli manufactures.

Herb Kephart