Cars Concept Engine Diesel Exhaust 
Green Car Congress
APRIL 17, 2013
The OP4 light-duty opposed-piston diesel. 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. Diesel Engines Fuel Efficiency' Click to enlarge. kW, compared to 4.1
Green Car Congress
JUNE 8, 2009
The LowCVP is calling on UK innovators to submit creative concepts with the potential to cut emissions from road vehicles without the need for radical new infrastructure. The target of the Challenge is mainstream passenger cars producing less than 80 g CO 2 /km. The Exhaust port is located on the outer side of the engine block.
Green Car Congress
MAY 23, 2009
The HPE was long thought to be a system in which all engine valves had to be actuated in a fully variable manner to allow for two-stoke pneumatic modes and still enable the four-stroke combustion mode. In large naturally-aspirated SI engine, high-friction, pumping losses and part-load operation all contribute to poor fuel efficiency.
Green Car Congress
OCTOBER 31, 2009
Wave rotor technology has been explored since 1906, although its first significant application was in 1940 by Brown Boveri Company (BBC, today ABB) which used it as a high pressure stage for a gas turbine locomotive engine. Mazda produced 150,000 Comprex diesel cars.
Green Cars News
MAY 6, 2009
The technology divides the four strokes of a conventional combustion cycle over two paired cylinders - one intake/compression cylinder and one power/exhaust cylinder. Currently the engine prototype is undergoing testing and analysis in San Antonio, Texas. The event takes place from June 16-18 in Stuttgart, Germany.
Green Car Congress
MAY 9, 2013
A cryogenic engine such as the Dearman piston engine produces zero emissions at the point of use; has low greenhouse gas emissions provided the liquid air or nitrogen is produced from low carbon electricity; has energy and power density on a level with battery electric technology; and has the potential for rapid refueling.
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