Internal combustion engine and method of operation

Details Internal combustion engine and method of operation Internal combustion engine and method of operation

1976-02-11

1978-08-15

Cox, Ronald B.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

60285, 123117R, 123117A, 123119A, 123119A, 123 32SP, 123198F, 123 32EB, F02M 700, F02P 504, F02B 1910, F02B 1916

Patent

active

041064488

ABSTRACT:
All of combustion chambers receive a lean air-fuel charge at low and medium engine power demands. As the engine power demand increases, a rich air-fuel charge is supplied to one or a suitable number of the combustion chambers with countermeasures being provided to suppress the formation of nitrogen oxides, such as, an exhaust gas recirculation (EGR) and the torch effect of a torch ignition system, the remaining combustion chambers, if any, receiving a lean air-fuel charge.
Exhaust gases from all of the combustion chambers are converged to oxidize hydrocarbons and carbon monoxide formed by the combustion of the rich air-fuel charge when the combustion chambers respectively receive rich and lean air-fuel charges.

REFERENCES:
patent: 2166968 (1939-07-01), Rohlin
patent: 2771867 (1956-11-01), Peras
patent: 3708980 (1973-01-01), Truxell
patent: 3827237 (1974-08-01), Linder
patent: 3910240 (1975-10-01), Omori
patent: 3982393 (1976-09-01), Masaki
patent: 4030292 (1977-06-01), Masaki et al.
patent: 4033122 (1977-07-01), Masaki et al.

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