Internal-combustion engines – Engine speed regulator – Having condition responsive means with engine being part of...
Patent
1978-05-04
1980-08-26
Cox, Ronald B.
Internal-combustion engines
Engine speed regulator
Having condition responsive means with engine being part of...
91 6, 91450, 91429, 180179, 123360, F02M 700, F02B 3300
Patent
active
042189977
ABSTRACT:
The invention relates to an actuator device for a motor vehicle speed-responsive system, the device being operable to actuate the throttle valve or the like of the internal combustion engine of the vehicle. The actuator device comprises a bellows device defining a first chamber partly bounded by a movable wall and a fixed wall, and communicating with two further chambers defined by associated housings carried by the said fixed wall. One of the further chambers contains a first electro-magnetic control valve fed by a D.C. voltage, and operable to control an orifice through which the first chamber communicates with atmosphere. The other of the further chambers contains a second electro-magnetic control valve fed both by said D.C. voltage and by a pulsed voltage, and operable to control both an orifice through which the first chamber communicates with atmosphere and an orifice through which the first chamber communicates with a source of gas at sub-atmospheric pressure.
REFERENCES:
patent: 3052217 (1962-09-01), Denman et al.
patent: 3865218 (1975-02-01), Jones
patent: 3946707 (1976-03-01), Gray
Associated Engineering Limited
Cox Ronald B.
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