Idling speed control for engines

Details Idling speed control for engines Idling speed control for engines

1982-07-28

1984-12-18

Nelli, Raymond A.

Internal-combustion engines

Engine speed regulator

Idle speed control

123327, 123585, 123489, F02D 104, F02B 300

Patent

active

044885245

ABSTRACT:
In or idling speed control system for engines, a bypass passage is branched off from a main intake passage located upstream of a throttle valve and is connected to the main intake passage located downstream of the throttle valve. A flow control valve, actuated by a step motor, is arranged in the bypass passage. The step motor is controlled by an electronic control unit so that the engine speed becomes equal to a predetermined speed. When the engine is stopped, the flow control valve opens the bypass passage to the maximum extent so that the engine can be easily started at the time of next engine start.

REFERENCES:
patent: 4237833 (1980-12-01), Des Lauriers
patent: 4237838 (1980-12-01), Kinugawa et al.
patent: 4306527 (1981-12-01), Kinugawa et al.
patent: 4364348 (1982-12-01), Itoh et al.
patent: 4378767 (1983-04-01), Kobashi et al.

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