EGR/Ignition timing control system for an internal combustion en

Details EGR/Ignition timing control system for an internal combustion en EGR/Ignition timing control system for an internal combustion en

1978-09-08

1980-03-04

Argenbright, Tony

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

123119A, F02P 504, F02M 2506

Patent

active

041911431

ABSTRACT:
An EGR/ignition timing control system for an internal combustion engine having a vacuum advancer and an EGR system, wherein the control system includes a vacuum switch which is operated at the same critical vacuum as an EGR valve of the EGR system and a solenoid valve which is operated by the vacuum switch so as to trap, in cooperation with a check valve, the maximum vacuum supplied to the vacuum advancer as long as the EGR valve is open and is effecting exhaust gas recirculation.

REFERENCES:
patent: 3915132 (1975-10-01), Thornburgh
patent: 4031869 (1977-06-01), Onishi et al.
patent: 4083335 (1978-04-01), Ohata
patent: 4098245 (1978-07-01), Ohata
patent: 4124006 (1978-11-01), Rodenkirch

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