Engine emission control system

Details Engine emission control system Engine emission control system

1977-07-07

1978-11-07

Burns, Wendell E.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

123117R, 123117A, F02M 2506

Patent

active

041240065

ABSTRACT:
An automotive emission control system in which the engine timing is advanced an amount that is supplemental to the normal part throttle advance, in response to exhaust gas recirculation (EGR) flow, to compensate for the slower burning rate due to EGR dilution of the engine intake charge, the EGR flow being accomplished by an engine driven air pump pressure controlled by an air pump pressure modified by manifold vacuum so as to be speed and load responsive, the triggering pressure also being applied to the ignition timing distributor servo.

REFERENCES:
patent: 3796049 (1974-03-01), Hayashi
patent: 3812832 (1974-05-01), Scott
patent: 3895616 (1975-07-01), Steinke
patent: 3935843 (1976-02-01), Ludwig
patent: 3938329 (1976-02-01), Basshuysen
patent: 3939810 (1976-02-01), Walker
patent: 3974807 (1976-08-01), Nohira et al.
patent: 3978834 (1976-09-01), Arnaud et al.
patent: 4040401 (1977-08-01), Marsee

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