Opposed-piston engine technology has been touted as a possible alternative to conventional engine designs for years. Now, opposed-piston engine developer Achates Power reports that its 10.6L ...

This story appears in the March 14 print edition of Transport Topics. Truck and engine maker Navistar Inc. has taken a new tack in its drive to offer new motors, joining a company that had developed a ...

Several organizations, encompassing companies, research labs, and academia, have formed the Hydrogen Opposed Piston Engine Working Group, a collaborative forum to advance sustainable transportation ...

1. EcoMotors is developing high-efficiency engines — specifically the unique opoc (Opposed Piston Opposed Cylinder) engine — for use in cars, light trucks, marine applications, agricultural vehicles, ...

In the case of the Achates Power two-stroke diesel engine, less is more. For the last 14 years, the San Diego-based company has been busy working to improve the opposed-piston engine with one of its ...

Could a full-size pickup truck ever get a fuel-economy rating of 37 mpg? California-based Achates Power believes it can, and its novel engine uses a design that dates back to the earliest days of ...

A demonstration project is working on a radically different commercial diesel engine that emits much less, burns less fuel and produces more power. A California project is working to produce a ...

Diesel is dead? Not quite yet. Achates announced Friday that it has produced a heavy-duty, two-stroke diesel engine with near-zero emissions that costs less than a conventional engine and is expected ...

Achates Power of San Diego has developed a two-stroke truck diesel that has two crankshafts linked to two opposed pistons facing each other in a common cylinder. The biggest advantage of this design ...

Argonne, which is partnering with Achates Power to develop a hydrogen-powered engine, recently began testing the engine in Argonne’s state-of-the-art facilities. In a groundbreaking demonstration, ...

Can gasoline-powered vehicles be climate friendly? One company is using an old engine featuring opposed pistons to reduce fuel use. The Nazis put a similar engine in airplanes. One of the puzzles ...