Crazy kiwi engine

[Guest]

This s*** is off the hook. Combine it with those solenoid inlet/outlet thingys and they have a serious winner I reckon. If it was a good price etc obviously.

14:1 on 91 is pretty awesome.

http://www.dukeengines.com/

[DRFVDR]

Looks pretty good, an axial engine that to me looks like it runs through a swage plate set up ( very limited information available).

will have some pretty good uses,but maybe not as a retrofit as it will come into the same issues as the rotary, mainly being the crank is centre(ish) of the engine

[Koom]

I had wondered over the years what had happened to that Duke engine.

Remember seeing it at Fieldays back when I was barely a teenager. So its been a fair few years and its good to see them still going.

Here\'s another random engine concept being worked on in ChCh

Pivotal Engine

Although last I saw of that was a guy doing his doctorate on getting the seals to last and that was back in 2005.

There\'s also the Aerotwin Engine, from ChCh as well.

And its not an engine, but the Martin Jetpack is pretty cool too.

[lachlan]

i remember seeing that pivotal engine and thought it had the worst aspects of a rotary and a piston engine and no real benefit .

the duke engine doesnt seem to have any great leaps forward . its just a giant water blaster .

anything that can displace stuff can be an engine but it doesnt mean it should be / is worth it

[Koom]

Also pretty much anything "new" in piston based internal combustion engines was first trialled back in the days of piston engined fighter planes. If there\'s a war on, R&D budgets get quite big!

I like the out of the box thinking behind some of them, like the engine that Powerbeat International made back in the nineties where the block was just a extruded length of alloy. Had the possibility of cutting down production costs hugely.

Personally I still think the Rotary engine is one of the greatest design\'s for an engine, also still yet to own one.

[Roo]

Rotaries are a good idea but they\'re terribly inefficient due to the shape of the combustion chamber

[Joker]

LOL that\'s why a 12a can keep up with a 2.0L piston?

[Johnnynz]

 JoKer said:

LOL that\'s why a 12a can keep up with a 2.0L piston?

Maybe hes meaning from a fuel perspective.

If my mates 12a is anything to go by it would use more gas then my WRX and not keep up in a straight line.

[Roo]

 JoKer said:

LOL that\'s why a 12a can keep up with a 2.0L piston?

Note I said efficiency not overall power

[tebbyj]

Awesome design for an engine, if they can utilize a variable compression ratio and running on diesel it would do wonders for emissions in modern vehicles. Hope its not going to end up on the shelf like a lot of the other ones do.