Title: Exhaust gas recirculation pre-stratified charge

Abstract: A low pollution internal combustion engine is disclosed in which a predetermined portion of a stratified charge is initially pre-formed in the part of the manifold which supplies the predetermined charge portion to the cylinder, said predetermined charge portion being composed of fuel-air mixture diluted by exhaust gas and pre-formed when the intake valve for the cylinder is in the closed condition, and subsequently being introduced together with the remaining portion of the stratified charge, when the intake valve is opened during the intake stroke of the engine.

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Inventors: Resler, Jr., Edwin L. (Ithaca, NY, US)

Application Number: 745213
Filing Date: 1976-11-26
Publication_date: 1979-01-23
Assignee: Cornell Research Foundation, Inc. (Ithaca, NY)
Primary Class(es): 123/430 123/568.17
Other Classes:
US Patent Ref:

1955661	Apr, 1934	Waldo	123/119.
2652040	Sep, 1953	Trih	123/119.
3024776	Mar, 1962	Shiruin	123/119.
3444846	May, 1964	Sarto et al.	123/119.
3498274	Mar, 1970	Chapman	123/119.
3507260	Apr, 1970	Walker	123/119.
3587541	Jun, 1971	Sarto	123/119.
3633553	Jan, 1972	Holzapfel	123/119.
3810454	May, 1974	Hunt	123/119.
3851632	Dec, 1974	Teshirogi et al.	123/119.

Other Refs:
Primary Examiner: Lazarus, Ronald H.
Assistant Examiner: Reynolds, David D.
Attorney: Laubscher; Lawrence E., Barnard; Ralph R., Wood; Theodore C.