Internal-combustion engines – Intake manifold – Manifold tuning – balancing or pressure regulating means
Patent
1975-05-13
1977-02-22
Myhre, Charles J.
Internal-combustion engines
Intake manifold
Manifold tuning, balancing or pressure regulating means
74860, 123119A, F02P 504, F02M 2506
Patent
active
040086976
ABSTRACT:
An engine emission control system includes exhaust gas recirculation and engine spark timing control devices each connected to axially spaced exhaust gas recirculation and spark ports in the carburetor induction passage above the closed position of the throttle valve. Under the control of a single electro-magnetically operated valve, the exhaust gas recirculation and engine spark timing control devices are selectively disabled. The valve selectively bleeds a vacuum conduit connecting the exhaust gas recirculation device to the exhaust gas recirculation port or a vacuum conduit connecting the engine spark timing control device to the spark port.
REFERENCES:
patent: 3486595 (1969-12-01), Turner
patent: 3584521 (1971-06-01), Tooker et al.
patent: 3753377 (1973-08-01), General
patent: 3783847 (1974-01-01), Kolody
patent: 3800764 (1974-04-01), Goto et al.
Argenbright Tony M.
Myhre Charles J.
Nissan Motor Co,. Ltd.
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