Internal-combustion engines – Intake manifold – Manifold tuning – balancing or pressure regulating means
Patent
1976-08-24
1978-06-20
Cox, Ronald B.
Internal-combustion engines
Intake manifold
Manifold tuning, balancing or pressure regulating means
1371165, 60276, 123119A, 123119F, 123102, F02B 300, F02M 700, F02B 3300
Patent
active
040955702
ABSTRACT:
A system for positioning an engine control element has a sensor measuring a value corresponding to the actual position of the element, a reference providing a command value establishing the proper position for the element, an electronic control which compares the measured value with the command value, and an actuator including a fluid pressure responsive motor for moving the element and a pressure regulator directed by the electronic control to regulate the fluid pressure delivered to the motor and cause the motor to move the control element to the proper position. The pressure regulator has a coil energized by the electronic control and a valve member which floats between a regulated-pressure-reducing bias caused by the magnetic flux created in the coil and a regulated-pressure-increasing bias caused by a varying but uncontrolled pressure differential.
REFERENCES:
patent: 3545472 (1970-12-01), Franz
patent: 3685502 (1972-08-01), Oberdorfer
patent: 3715006 (1973-02-01), Walsh
patent: 3800764 (1974-04-01), Goto
patent: 3896913 (1975-07-01), Maruoka
patent: 3934565 (1976-01-01), Matsumoto
patent: 4023357 (1977-05-01), Masaki
patent: 4029061 (1977-06-01), Asano
Sheffer Timothy K.
Stoltman Donald D.
Cox Ronald B.
General Motors Corporation
Veenstra C. K.
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