Opposed Piston Opposed Cylinder Engine

[1cut808]

Interesting development...

http://blog.hemmings.com/index.php/2011/01/13/saving-the-world-two-strokes-at-a-time/

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[mc68]

Its still a two stroke. It will still be interesting to see how much it drinks..

looks cool though, wonder what it will sound like.

[-Luke-]

http://en.m.wikipedia.org/wiki/Napier_Deltic

Same/Similar? looks like a slight tweak to the Napier deltic arrangment?

[Risk10k]

Marine diesel use a simliar thing no?

[upgarage]

Nothing elegant about a reciprocating engine IMO. (up down up down..etc)

Rotary/orbital engine were on the right track, but both have inherent flaws.

[S133LTR]

Nothing elegant about a reciprocating engine IMO. (up down up down..etc)

Go put a decent import engine crank in a lathe and spin it at 1000 rpm (you will be amazed/scared at the sight of it), then imagine that at 7 or 8 times the speed with a bunch of rods and slugs hanging off it.. pretty amazing that do what they do imo.

[Brett_J]

Go put a decent import engine crank in a lathe and spin it at 1000 rpm (you will be amazed/scared at the sight of it), then imagine that at 7 or 8 times the speed with a bunch of rods and slugs hanging off it.. pretty amazing that do what they do imo.

Its still not elegant as stated.

[Gleeso]

Thanks for that. I found it quite interesting.

A lot of good things are made for the Army first than go commercial, it will be cool to see commercial vehicles with this sort of setup.

[datsqik]

I used to run the Napier Deltic workshop for the navy many years ago. These things were insane and nothing sounds as good as these things. They sound like a bit of a cross between a peripheral port rota and a v12 with a few more cylinders. They have a brap brap idle then scream into action when the throttle is opened. Having no flywheels means you can smash the throttle opened and closed and it goes from a brap brap idle to a sceaming 5500rpm and back to idle in a second. 5500rpm sounds more like 20,000 rpm. We used to have a purpose built dyno cell/building just for testing these things.

[1cut808]

I used to run the Napier Deltic workshop for the navy many years ago. These things were insane and nothing sounds as good as these things. They sound like a bit of a cross between a peripheral port rota and a v12 with a few more cylinders. They have a brap brap idle then scream into action when the throttle is opened. Having no flywheels means you can smash the throttle opened and closed and it goes from a brap brap idle to a sceaming 5500rpm and back to idle in a second. 5500rpm sounds more like 20,000 rpm. We used to have a purpose built dyno cell/building just for testing these things.

NICE!