EC - EC Description This invention relates to an exhaust...

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EC Description This invention relates to an exhaust reaction chamber assembly for a multi-cylinder internal combustion engine and has for its general object the reduction of emissions of objectionable exhaust gas components into the atmosphere. Recently, in engines of this type, in order to control the generation of NOx, a relatively lean air-fuel mixture is employed, so lean as to be close to the combustible limit. Such a lean mixture results in a relatively low combustion temperature, and as a result the temperature of the exhaust gases are relatively low. It is an important feature of this invention to minimize further loss in temperature as the exhaust gases pass through reaction chambers in the exhaustmanifold . Oxidation of pollutants other than NOx is thus enhanced, and the oxidation reactions tend to raise the temperature of the exhaust gases. Rocket engines have been used for years to propel various objects or vehicles. Generally, a rocket engine operates as follows. When a hot gas under pressure is produced by the burning of a rocket fuel (the propellant) in a combustion chamber, the gas will exercise an equal pressure in all directions upon the walls within the chamber. If an opening (a nozzle) is made in one wall of the chamber, the gas will stream out of the nozzle at a supersonic velocity. At the same time, a reaction force will be exerted on the opposite side of the chamber. It is this reaction force that
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This note was uploaded on 09/20/2010 for the course AE AE267 taught by Professor Nikola during the Spring '10 term at San Jose State University .

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EC - EC Description This invention relates to an exhaust...

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