Concept Engine Exhaust IDEA 
Green Car Congress
OCTOBER 25, 2010
The turbocharged concept allows reaching engine speeds of 6,000 rpm, with a high indicated efficiency of 45% along with clean combustion; power density at 6,000 rpm is 64 kW, with 300 kPa intake pressure. Thus the HCPC range can extend to all engine operating conditions, including very high loads. Tamagna, D., Gentili, R.
Green Car Congress
DECEMBER 1, 2014
The engine was invented by Herns Louis, veteran of more than 30 years in the parts manufacturing industry ranging from automotive to aerospace, specializing in computerized parts machining. The technology can be easily adapted to existing engines, making the implementation very cost effective. Concept Engines Engines Natural Gas'
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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
MAY 9, 2013
The work was conducted by a collaboration including industrial partners Arup, Dearman Engine Company, E4 Tech, Highview, Messer Group and Ricardo, as well as academics from the Universities of Leeds, Birmingham, Strathclyde, Brighton and Imperial College London. High efficiency internal combustion engine. The Dearman engine.
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