Power plants – Internal combustion engine with treatment or handling of... – Material from exhaust structure fed to engine intake
Patent
1977-05-23
1979-04-17
Hart, Douglas
Power plants
Internal combustion engine with treatment or handling of...
Material from exhaust structure fed to engine intake
60290, 60305, 123119A, F02M 2506, F01N 310
Patent
active
041493770
ABSTRACT:
Disclosed is an automotive multi-cylinder internal combustion engine in which exhaust gases from one or more of the exhaust ports of the engine cylinders are partially recirculated into the mixture induction system of the engine and secondary air is injected into exhaust gases from the remaining exhaust ports under normal operating conditions of the engine. The recirculation of the exhaust gases is interrupted and furthermore secondary air is injected into the exhaust gases from all the engine cylinders under predetermined non-normal operating conditions such as idling and decelerating conditions of the engine.
REFERENCES:
patent: 3172251 (1965-03-01), Johnson
patent: 3948044 (1976-04-01), Wakita
patent: 3978834 (1976-09-01), Arnaud
patent: 3983697 (1976-10-01), Goto
patent: 3992878 (1976-11-01), Moorman
patent: 4056933 (1977-11-01), Nohira
Hisatomi Takashi
Nakajima Yasuo
Sugihara Kunihiko
Takagi Yasuo
Hart Douglas
Nissan Motor Company Limited
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