Concept Engine Emissions Exhaust Resource 
Green Car Congress
OCTOBER 25, 2010
The basic idea of the new Diesel combustion illustrated in this paper is to control the heat release rate by a gradual supply of an almost homogeneous charge, without relying on exhaust gas recirculation to moderate the reaction. Thus the HCPC range can extend to all engine operating conditions, including very high loads. Tamagna, D.,
Green Car Congress
JUNE 8, 2009
The first registrant in the Challenge is Libralato Engines, developer of a novel rotary engine (cutaway shown) promising a 5.5% gain in combustion efficiency and 50% reduction in NO x emissions. Rotor 1, Rotor 2 and the connecting cam form the total internal mechanism of the engine. Click to enlarge.
Green Car Congress
OCTOBER 29, 2019
An adaption of cylinder de-activation technique called ECONAMIQ over-expansion can be applied to engines to improve fuel efficiency. Using the pressure from the exhaust gas from the active cylinders, the ‘idle’ cylinders could be expanded to extract more work out of the engine during partial load operation.
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
The WDG also can reduce carbon dioxide emissions by as much as 95 percent in comparison to modern internal combustion vehicle engines. The Wave Disc Engine. The wave disc engine is a new implementation of wave rotor technology (also called Pressure Wave Machines or Pressure Exchangers). Norbert Müller. Click to enlarge.
Green Car Congress
MAY 8, 2014
It expands all the way to ambient pressure before the exhaust stroke. The power is produced in almost a 50-50 split between the combustion (central) and exhaust (largest) pistons. This is a major step toward our goal of building the most efficient engine in the world for trucks, automobiles and power generation. and O’Malley, E.
Green Car Congress
FEBRUARY 5, 2010
When reforming is not used, the fuel and exhaust pass through CV2 unchanged. The basic concept of TCR involves using exhaust heat to promote on-board reforming of hydrocarbon fuels into syngas (a mixture of carbon monoxide and hydrogen). The syngas is then burned in the engine in place of some or all of the original fuel.
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