System to feed exhaust gas into the induction passage of an inte

Details System to feed exhaust gas into the induction passage of an inte System to feed exhaust gas into the induction passage of an inte

1975-11-26

1978-09-05

Michalsky, Gerald A.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

F02M 2506

Patent

active

041111729

ABSTRACT:
An EGR (exhaust gas recirculation) control valve is operated to meter the flow of recirculating engine exhaust gases during engine acceleration only and is locked in a lock position to close the EGR passageway in response to a high pressure prevailing in a vacuum chamber of a servo device of the EGR control valve during engine operations excluding acceleration.

REFERENCES:
patent: 3606871 (1971-09-01), Gropp et al.
patent: 3673993 (1972-07-01), Nakajima et al.
patent: 3768452 (1973-10-01), Lewis
patent: 3800764 (1974-04-01), Goto et al.
patent: 3835827 (1974-09-01), Wolgemuth
patent: 3885536 (1975-05-01), Marshall
patent: 3885537 (1975-05-01), Diehl
patent: 3901202 (1975-08-01), Hollis et al.
patent: 3930475 (1976-01-01), Lewis et al.
patent: 3977381 (1976-08-01), Fujikawa et al.

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