Exhaust gas valve position regulator assembly

Details Exhaust gas valve position regulator assembly Exhaust gas valve position regulator assembly

1977-08-03

1979-04-17

Burns, Wendell E.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

F02M 2506

Patent

active

041495012

ABSTRACT:
An exhaust gas recirculating (EGR) valve is provided in a line connecting engine exhaust gases to the intake manifold to control the flow; a positioning servo is attached to the EGR valve and is operated by the pressure from an engine driven air pump; a position regulator servo is actuated by a modified air pump pressure to move an air bleed device normally bleeding the air pump pressure so that the EGR valve does not open; the air bleed device minimizes the hunting of the positioning servo and fixes the EGR valve in the position called for by the positioning regulator.

REFERENCES:
patent: 3796049 (1974-03-01), Hayashi
patent: 3812832 (1974-05-01), Scott
patent: 3834366 (1974-09-01), Kingsbury
patent: 3885538 (1975-05-01), Suter
patent: 3974807 (1976-08-01), Nohira et al.
patent: 3981283 (1976-09-01), Kaufman
patent: 3992878 (1976-11-01), Moorman
patent: 4048968 (1977-09-01), Aoyama
patent: 4071005 (1978-01-01), Nakajima
patent: 4071006 (1978-01-01), Harada

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