Patent ID: 6067973
Filing Date: 2000-05-30
Classification: F02B,F02D,F02M,Y02T

Abstract:
An air flow management system for an internal combustion engine, said engine having an intake manifold and at least one combustion chamber, an intake air system adapted for providing intake air to said intake manifold and said combustion chamber, and an exhaust system adapted for transporting exhaust gases from said combustion chamber, said air flow management system comprising:intake air separation device disposed within said intake air system and adapted for separating a prescribed portion of intake air into a flow of said oxygen enriched air and a flow of nitrogen enriched air;an oxygen,enriched air flow circuit extending from said intake air separating device to said combustion chamber while circumventing said intake manifold;a flow control device disposed along said oxygen enriched air flow circuit, said flow control device adapted for introducing said oxygen enriched air from said oxygen enriched air circuit into said combustion chamber; anda controller operatively coupled to said flow control device and adapted to control the introduction of said oxygen enriched air into said combustion chamber late in a combustion cycle in response to selected engine operating conditions.