saving the world 2 strokes at a time,amazing engine

[mcshooter]

Watch "Opposed Piston Opposed Cylinder Engine" Video at Engineering TV

[SpdDmnVR4]

such a neat idea.

Sounds efficient, and The thermodynamics of it are pretty simple as well. Its a 2 stroke design, supposedly able to provide 650HP for a "two Module" design. It has already been tested several times(every time passing the proposed tests), And they are expecting Prototypes to be given to the Military is an little as 18 months.


An extremely lightweight opposed piston opposed cylinder (OPOC) engine has been developed under a Defense Advanced Research Projects Agency (DARPA) program. FEV and Advanced Propulsion Technologies (APT) were asked by the U.S. Army Tank Automotive Research Development and Engineering Center (TARDEC) to modify this engine for heavy-truck applications. Analyzing the two stroke scavenging, the side-injection combustion, and the structure of the key components shows the potential of the OPOC concept. It is predicted for the 465 kW (650 hp) OPOC truck engine. The OPOC engine was designed to be modular. Each module is self-contained and delivers 325 hp. The modules are connected together via the Modular Displacement Clutch, which synchronizes the modules for achieving even firing when both modules are functioning. With an optimized scavenging process, the special design features of the OPOC engine offer a significant step towards the potential of the two-stroke engine having double the power density of a four-stroke engine. An estimated 90% scavenging efficiency has been achieved with unique gas exchange characteristics of the OPOC engine and the use of an electric assisted turbocharger. The OPOC engine runs with almost two times the engine speed (3800 rpm) along with a large cylinder stroke (167.53 mm), as a result of the split stroke of the opposed piston structure. This also improves the power density by another factor of 2.

[jba3]

But can we swap it into a 3S?

[R/T93]

This technology is actually very, very old. Ships use them in diesel engines, there isnt even a cylinder head. Our naval submarines have 16 cyl opposing piston diesels in them, their design probably comes from the 60's

This is the first I have seen it in a small scale though, designed for smaller vehicles, pretty damn cool! I want one, lets put some DR750's on it! Haha

[green-lantern]

Pretty neat! I'd love to have a turbo 2stroke in the 3000. lol

[stealthee]

I used to work for the Engine Research Center at WVU back in 2000. One of the engineers I worked with actually had something very similar to this in the shop. It was pretty cool when he fired it up. It was loud as hell and the table it was bolted to would walk across the floor from the vibrations.

If you do some googling on Richard Atkinson and linear engine, you will find a few papers on the subject.