Internal-combustion engines – Accessories – Covers – trays – vibrators – corrosion inhibitors – air filters
Patent
1980-06-18
1982-07-06
Lall, P. S.
Internal-combustion engines
Accessories
Covers, trays, vibrators, corrosion inhibitors, air filters
123481, 123568, F02D 1700
Patent
active
043377408
ABSTRACT:
An internal combustion engine is disclosed which includes active and inactive cylinders, a load detector adapted to provide a low load indicative signal when the engine load is below a predetermined value, first means responsive to the low load indicative signal for cutting off the flow of air to the inactive cylinders, and second means for supplying a controlled amount of fuel into the active and inactive cylinders so as to achieve a somewhat lean air-fuel mixture therein. The second means is responsive to the low load indicative signal for cutting off the supply of fuel to the inactive cylinders and increasing the amount of fuel supplied to the active cylinders so as to achieve a somewhat rich air-fuel mixture therein. Third means is provided for monitoring the oxygen content of the exhaust from the engine to control the second means so that the fuel supplied to the engine is correct to maintain the stoichiometric air/fuel ratio.
REFERENCES:
patent: 2918047 (1959-12-01), Mick
patent: 4064844 (1977-12-01), Matsumoto et al.
patent: 4107921 (1978-08-01), Iizuka
patent: 4201180 (1980-05-01), Iizuka
patent: 4245471 (1981-01-01), Sugasawa et al.
patent: 4276863 (1981-07-01), Sugasawa et al.
Etoh Yukihiro
Iizuka Haruhiko
Sugasawa Fukashi
Tanaka Toshiaki
Lall P. S.
Nissan Motor Company Limited
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