Throttle control system for internal combustion engines

Details Throttle control system for internal combustion engines Throttle control system for internal combustion engines

1982-09-30

1984-05-15

Cuchlinski, Jr., William A.

Internal-combustion engines

Starting device

For airplane

123180R, F02M 116

Patent

active

044481586

ABSTRACT:
A throttle valve is opened upon engine cranking through a predetermined angle by a vacuum-operated valve in response to a vacuum signal supplied thereto from a vacuum pickup port positioned downstream of the throttle valve, for assisting the engine in getting started quickly and stably. A directional control valve is actuated upon engine cranking to allow the vacuum signal to be fed to the vacuum-operated valve. The vacuum pickup port communicates with the vacuum-operated valve through vacuum passages having thermosensitive valves one openable when the engine is kept below a preset temperature and the other openable when the engine temperature is above the preset level. A pressure delay means may be connected between the vacuum pickup port and the vacuum-operated valve to delay closing of the latter after the engine cranking.

REFERENCES:
patent: 3934571 (1976-01-01), Mennesson
patent: 4168680 (1979-09-01), Kawai et al.
patent: 4172864 (1979-10-01), Hohsho et al.
patent: 4177784 (1979-12-01), Tatsutomi et al.
patent: 4186697 (1980-02-01), Yasuda et al.

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