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Document Type and Number:
Japanese Patent JPH0248729
Kind Code:
B2
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.

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Inventors:
SUGIURA KENGO
YAMAUCHI YASUTAKA
ITO HIROSHI
Application Number:
JP12080881A
Publication Date:
October 26, 1990
Filing Date:
August 01, 1981
Export Citation:
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Assignee:
NIPPON DENSO KK
TOYOTA JIDOSHA KK
International Classes:
F02D41/08; F02D31/00; F02D33/00; F02D41/16; F02M3/07; F02M69/32; F02B75/02



 
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