Nothing New Under the Sun...or is there?

[GrauGeist]

I'm sure that alot of you guys are aware that Germany used diesel engines in some of thier aircraft. The Jumo205 is the best example of this, being a two-stroke opposed piston configuration.

Well, the OPOC is back, and it's really looking good this time around:
Saving the World Two Strokes at a Time

It's called OPOC (Opposed Piston Opposed Cylinder), and it's a turbocharged two-stroke, two-cylinder, with four pistons, two in each cylinder, that will run on gasoline, diesel or ethanol. The two pistons, inside a single cylinder, pump toward and away from each other, thus allowing a cycle to be completed twice as quickly as a conventional engine.

The OPOC has been in development for several years, and the company claims it's 30 percent lighter, one quarter the size and achieves 50 percent better fuel economy than a conventional turbo diesel engine.

They're predicting 100 MPG in a conventional car.

 

[Lucky13]

Deltic?

 

[vikingBerserker]

Hmmm interesting....

 

[GrauGeist]

Napier's Deltic was based in part on Junker's early designs, though Napier went with a triad design instead of the typical horizontal layout (Junkers did try a diamond config with the Jumo223) but these were applied to maritime uses...

 

[Aaron Brooks Wolters]

Did they give a torque and horsepower rating?