Internal-combustion engines – Intake manifold – Manifold tuning – balancing or pressure regulating means
Patent
1976-08-12
1977-12-27
Burns, Wendell E.
Internal-combustion engines
Intake manifold
Manifold tuning, balancing or pressure regulating means
1376371, F02M 2506
Patent
active
040648516
ABSTRACT:
An exhaust gas recycle valve adjusts the amount of exhaust gas returned to the induction manifold and the degree of opening of the recycle valve is controlled by the main throttle valve. In one embodiment of the invention, an extended throttle shaft carries a set of contact strips and a complementary shaft, coupled to the exhaust gas valve, carries contact pins which cooperate with the contact strips to open or close an electrical connection between a power source and an electric motor. When the strips and the pins are rotated relative to one another, as when the throttle is moved, the motor is energized and adjusts the position of the exhaust gas valve until the relative position of the strips and the pins is again such as to interrupt conduction.
REFERENCES:
patent: 2516547 (1950-07-01), Carlson et al.
patent: 3570461 (1971-03-01), Guarnaschelli
patent: 3673994 (1972-07-01), Aono
patent: 3678909 (1972-07-01), Barker et al.
Burns Wendell E.
Greigg Edwin E.
Robert & Bosch GmbH
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