NO to NO2 conversion control in a compression injection engine by hydrocarbon injection during the expansion stroke

The invention is directed towards a method for adjusting the NO2 to NO content of a diesel engine's exhaust without affecting engine performance. The NO2 to NO ratio is adjusted by varying the amount and tinting of secondary hydrocarbon injection during the engine's expansion stroke. The a...

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Bibliographic Details
Main Authors HARRY STUARD PINK, ANTHONY MARION DEAN, WALTER WEISSMAN
Format Patent
LanguageEnglish
Published 17.01.2002
Edition6
Subjects
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Summary:The invention is directed towards a method for adjusting the NO2 to NO content of a diesel engine's exhaust without affecting engine performance. The NO2 to NO ratio is adjusted by varying the amount and tinting of secondary hydrocarbon injection during the engine's expansion stroke. The appropriate amount of secondary injected hydrocarbon and the appropriate injection timing are determined from calibration values obtained by direct engine measurements and the desired NO2:NO ratio.
Bibliography:Application Number: AU1809899