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Duke Engines

Posted: 17 Sep 2015, 05:42
by Blade
This is really impressive stuff (y)

[video]https://youtu.be/c19kn3drdFU[/video]

Re: Duke Engines

Posted: 17 Sep 2015, 07:21
by kiwikrasher
I'd be really interested to see how they have designed the sliding seals that seal at 15:1 compression a rotating block against a stationary head!!

Re: Duke Engines

Posted: 17 Sep 2015, 07:27
by Blade
I have no idea tbh mate but looked a very interesting and exciting project imo.

Re: Duke Engines

Posted: 17 Sep 2015, 07:45
by kiwikrasher
Blade wrote:I have no idea tbh mate but looked a very interesting and exciting project imo.
absolutely, clever buggars those kiwi's huh!! ;)

Re: Duke Engines

Posted: 17 Sep 2015, 07:58
by Blade
kiwikrasher wrote:
Blade wrote:I have no idea tbh mate but looked a very interesting and exciting project imo.
absolutely, clever buggars those kiwi's huh!! ;)
Yeah some of them are for sure (rolf)

Re: Duke Engines

Posted: 17 Sep 2015, 08:40
by kiwikrasher
Blade wrote:
kiwikrasher wrote:
Blade wrote:I have no idea tbh mate but looked a very interesting and exciting project imo.
absolutely, clever buggars those kiwi's huh!! ;)
Yeah some of them are for sure (rolf)
KWACKY! where is the dislike button!!! (finger)

Re: Duke Engines

Posted: 17 Sep 2015, 08:57
by Kwacky
kiwikrasher wrote:I'd be really interested to see how they have designed the sliding seals that seal at 15:1 compression a rotating block against a stationary head!!

Image

Re: Duke Engines

Posted: 17 Sep 2015, 17:51
by Deegee
Very clever piece of engineering, I'd guess the idea came from axial piston hydraulic pumps and motors - very similar concept, it's a shame they didn't give a bit more detail for some of the problem areas but I guess that would be giving away the farm. Hope they do well with it, although looking at their website & Facewipe acc not a lot seems to have changed for a while.

Re: Duke Engines

Posted: 17 Sep 2015, 17:55
by Blade
Kiwi come on mate don't be like that ;( you were clearly part of the "some" ;)

Re: Duke Engines

Posted: 18 Sep 2015, 01:03
by kiwikrasher
Blade wrote:Kiwi come on mate don't be like that ;( you were clearly part of the "some" ;)
All in jest mate, you should know by now I don't take anything much to heart :)

Re: Duke Engines

Posted: 18 Sep 2015, 01:09
by kiwikrasher
Deegee wrote:Very clever piece of engineering, I'd guess the idea came from axial piston hydraulic pumps and motors - very similar concept, it's a shame they didn't give a bit more detail for some of the problem areas but I guess that would be giving away the farm. Hope they do well with it, although looking at their website & Facewipe acc not a lot seems to have changed for a while.
Exactly my thoughts Deegee. I used to overhaul variable displacement hydraulic pumps for Skyhawks aircraft and they had a cylinder to valve head metal to metal seal (4500 psi test press). I had to lap the mating faces to 3 helium light bands of smoothness. QA was with a 40x microscope. That's what made me wonder how they did it.

It's a great idea but a bit late for automotive as electric is the money pit for R&D. Unless these are adapted as hybrid units. But lots of scope for industrial or aeronautical use imo.

Re: Duke Engines

Posted: 18 Sep 2015, 01:21
by Blade
kiwikrasher wrote:
Blade wrote:Kiwi come on mate don't be like that ;( you were clearly part of the "some" ;)
All in jest mate, you should know by now I don't take anything much to heart :)
I know dude. It was clearly jest back I would never really put you in the intelligent camp.

Come on dude, surely you saw that :P

Re: Duke Engines

Posted: 18 Sep 2015, 01:24
by kiwikrasher
Blade wrote:
kiwikrasher wrote:
Blade wrote:Kiwi come on mate don't be like that ;( you were clearly part of the "some" ;)
All in jest mate, you should know by now I don't take anything much to heart :)
I know dude. It was clearly jest back I would never really put you in the intelligent camp.

Come on dude, surely you saw that :P
I put up with the likes of you, so clearly I'm a slow learner! :D

Re: Duke Engines

Posted: 18 Sep 2015, 01:30
by Blade
Pmsl (rock)

Re: Duke Engines

Posted: 21 Sep 2015, 11:59
by Monty
HAHA touché

"3 helium light bands of smoothness" ?

Re: Duke Engines

Posted: 21 Sep 2015, 12:04
by Monty
Had to look that up, 1 is 0.0000116 inches!

Re: Duke Engines

Posted: 21 Sep 2015, 19:49
by Blade
Should have just looked at my ass Monty ;) it's the same level of smoothness :D

Re: Duke Engines

Posted: 21 Sep 2015, 21:34
by kiwikrasher
Monty wrote:Had to look that up, 1 is 0.0000116 inches!
Yup I knew it was pretty extreme (22 years ago I was doing that) The lapping plate got sent away for a calibration check every year, but we just checked under a 40x microscope and when the components looked like polished granite you knew it was up to spec.

Re: Duke Engines

Posted: 21 Sep 2015, 21:36
by kiwikrasher
Blade wrote:Should have just looked at my ass Monty ;) it's the same level of smoothness :D

A human hair is 3-5 thou' of an inch Blade..... :P

Re: Duke Engines

Posted: 21 Sep 2015, 21:40
by Blade
I have a shaved ass :?