Diesel throttle valve control system

Details Diesel throttle valve control system Diesel throttle valve control system

1980-08-01

1982-12-28

Cox, Ronald B.

Internal-combustion engines

Engine speed regulator

Idle speed control

123336, 123382, F02D 104, F02D 106

Patent

active

043656005

ABSTRACT:
An intake air throttle valve control system for a diesel engine which greatly reduces vibration, noise and rough engine running at idling speeds. An intake passage connected in series with the intake manifold of the engine is divided into first and second parallel intake passages. A throttle valve is disposed in a first intake passage to provide a throttling effect therein in response to predetermined engine conditions such as engine temperature, oil line pressure and/or exhaust manifold pressure. A negative pressure control valve is disposed in the second passage to maintain a negative pressure downstream of first and second passages at a fixed value to prevent the pressure from being overly reduced by the throttle valve.

REFERENCES:
patent: 2398878 (1946-04-01), Bolli
patent: 2904025 (1959-09-01), Scherenberg
patent: 3169513 (1965-02-01), Hennequin
patent: 4058101 (1977-11-01), Taira

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