Duke Engines

[Sicman]

  Could you see this being mounted in the next ST?

Duke Engines

[Nigel]

Interesting watch, seems the next step up from the rotary. Much more power for less fuel, not sure in a bike though, goes quick enough now. 

[Biggles]

Brilliant!
It's great to see someone taking the 4 stroke to the next level.
You've got to (reluctantly) hand it to the K1W1s.  They are an inventive bunch.

[Totgas]

To me it looks even more complicated than the standard engine and appears to have way more surfaces in contact generating increased friction and heat. The engine size with this arrangement also appears to be an issue. This was the same problem with the Wankel. http://en.wikipedia.org/wiki/Wankel_engine

[Brock]

The axial concept is already in use in hydraulic pumps, so instead of using rotation to create pressure they are using pressure to create rotation..

[StinkyPete]

I find it interesting how a number of alternative designs for internal combustion engines have been tested and been found to be viable, but never seem to make it into production.    The rotary engine is the obvious exception.

[HunterTodd]

Brock is correct yet again.

The correct term in hydraulics is a swash plate. We have a shop full of them.

I think the unique thing in this engine  might be the way cylinder block moves relative to the head  to complete to combuston cycle.

 I think the achilles heel of the engine will be seal between head and the cylinder in the same way the big seals in a rotary engine let a good concept down.

Just sayn' 

[Biggles]

Brock is correct yet again.

The correct term in hydraulics is a swash plate. We have a shop full of them.

I think the unique thing in this engine  might be the way cylinder block moves relative to the head  to complete to combuston cycle.

 I think the achilles heel of the engine will be seal between head and the cylinder in the same way the big seals in a rotary engine let a good concept down.

Just sayn' 

You nailed it at every point. 
Regarding the seal between the cylinder block and the inlet/outlets, it will take some fine machining and good lubrication to make it work.  Perhaps a sealing ring, a cousin of the piston ring, could be embedded in the gap.

[Sicman]

I find it interesting how a number of alternative designs for internal combustion engines have been tested and been found to be viable, but never seem to make it into production.    The rotary engine is the obvious exception.

That because RePete - the oil companies buy them and park them on a shelf so we have to keep buying overpriced fuel and oil 

[Biggles]

OK, we have our icon for hijacks:   

Can we have one now for Conspiracy Theories?   


It's OK sicman, you're probably right.  They're certainly powerful.   

[nealeray]

    Totgas said Wankel.