Apparatus for controlling the idling speed of an engine

Details Apparatus for controlling the idling speed of an engine Apparatus for controlling the idling speed of an engine

1982-11-10

1984-03-06

Cox, Ronald B.

Internal-combustion engines

Engine speed regulator

Idle speed control

123340, F02D 1110

Patent

active

044347600

ABSTRACT:
An engine comprising a main intake passage having a throttle valve therein. A bypass passage is branched off from the main intake passage located upstream of the 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. When the pressure of the lubricating oil of the engine is decreased below a predetermined pressure, the idling speed of the engine is increased to a predetermined speed. In addition, when the temperature of the cooling water of the engine is increased beyond a predetermined temperature, the idling speed of the engine is also increased to a predetermined speed.

REFERENCES:
patent: 3964457 (1976-06-01), Coscia
patent: 4203395 (1980-05-01), Cromas
patent: 4297978 (1981-11-01), Matsui
patent: 4305360 (1981-12-01), Meyer et al.
patent: 4312315 (1982-01-01), Takase
patent: 4364350 (1982-12-01), Kobayashi et al.

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