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LiquidPiston introduces latest X-series version of HEHC rotary engine; targeting 58% peak BTE, 2 hp/lb power density

Green Car Congress

Isuzu D201 35 hp diesel engine (left) and the LiquidPiston 40 hp X2 Prototype (right). Other features of the X2 include: Quiet operation: engine lacks poppet valves and over-expansion minimizes exhaust noise. to the thermodynamics, not to a particular engine. Click to enlarge. LiquidPiston, Inc.

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SEC issues cease-and-desist order against split-cycle engine developer Scuderi Group for violations of Securities Act

Green Car Congress

The Scuderi Engine is a split-cycle design that divides the four strokes of a conventional combustion cycle over two paired cylinders. The Scuderi Engine is a split-cycle design that divides the four strokes of a conventional combustion cycle over two paired cylinders. a more efficient internal combustion engine. Earlier post.).

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Achates Power developing light-duty two-stroke opposed-piston diesel engine: the OP4

Green Car Congress

Achates Power, which is developing a family of two-stroke, compression-ignition (CI) opposed-piston (OP) engines, has designed and is developing a light-duty diesel concept engine, the OP4. liter OM651 Euro 5 engine, said Fabien Redon VP, Technology Development at Achates Power, the OP4 design shows a modeled 13.5%

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Novel opposed-piston free-piston linear generator for hybrids seeks to overcome drawbacks of earlier designs

Green Car Congress

—Ling Huang 2012. Huang 2012. Ling Huang (2012) An Opposed-Piston Free-Piston Linear Generator Development for HEV (SAE 2012-01-1021) doi: 10.4271/2012-01-1021. Secondly, the central combustion chamber is benefit for highly efficient scavenging via intake and exhaust ports without using valves.

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