Multi-cylinder internal-combustion engine control device

Details Multi-cylinder internal-combustion engine control device Multi-cylinder internal-combustion engine control device

1985-02-27

1987-01-20

Lazarus, Ira S.

Internal-combustion engines

Charge forming device

Fuel injection system

123580, 123198F, F02D 1702

Patent

active

046373632

ABSTRACT:
An internal-combustion engine which includes two cylinder groups, of which one cylinder group operates constantly, whereas the second cylinder group is inactive in a part-load operation for better fuel economy. However, during forward or reverse operation of the vehicle and during the warm-up phase of the internal-combustion engine, the second cylinder group is provided with a reduced fuel-air mixture to prevent the engine from dying. An actuating device is provided which responds to certain parameters such as engine temperature and gear position. This actuating device controls a radial cam which interacts with the throttle valve for the second set of cylinders during these conditions to supply the required fuel-air mixture.

REFERENCES:
patent: 2623617 (1952-12-01), Snyder et al.
patent: 4257371 (1981-03-01), Ishida
patent: 4296719 (1981-10-01), Takahashi et al.
patent: 4305249 (1981-12-01), Schmid et al.
patent: 4393827 (1983-07-01), Schmid
patent: 4484548 (1984-11-01), Sugasawa et al.
patent: 4485776 (1984-12-01), Mokuya et al.

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