Exhaust gas recirculation control system

Details Exhaust gas recirculation control system Exhaust gas recirculation control system

1974-10-29

1976-06-08

Myhre, Charles J.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

123122D, 261 50A, F02M 2506

Patent

active

039616100

ABSTRACT:
An air valve, in the snorkel leading to the air cleaner in the induction system of an internal combustion engine, is actuated by a vacuum operated servo controlled by the depression in the snorkel to maintain a constant depression at the air cleaner. An exhaust gas recirculation control valve, operated by the air valve control servo, opens proportional to air valve opening to control exhaust gas flow into the induction system proportional to exhaust back pressure and air valve opening thereby providing exhaust gas recirculation flow proportional to engine load.

REFERENCES:
patent: 3459163 (1969-08-01), Lewis
patent: 3844260 (1974-10-01), Scott, Jr. et al.
patent: 3861367 (1975-01-01), Kelmar
patent: 3868934 (1975-03-01), Mick
patent: 3882206 (1975-05-01), Gural et al.

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