Internal-combustion engines – Intake manifold – Manifold tuning – balancing or pressure regulating means
Patent
1977-04-12
1978-12-19
Burns, Wendell E.
Internal-combustion engines
Intake manifold
Manifold tuning, balancing or pressure regulating means
F02M 2506
Patent
active
041300939
ABSTRACT:
An EGR control valve operating diaphragm unit operated by the difference between an exhaust gas pressure in a chamber interposed between the EGR control valve and a restriction provided in the EGR passageway upstream of the EGR control valve and a venturi vacuum in the engine intake passageway or a combination of an EGR control valve operating diaphragm unit operated by the difference between the atmospheric pressure and an engine suction vacuum and a pressure regulating valve controlling the flow of atmospheric air admitted for diluting the suction vacuum which diaphragm unit or combination operates the EGR control valve to reduce and increase the exhaust gas pressure in the chamber in the EGR passageway in accordance with increases and decreases in the venturi vacuum, respectively.
REFERENCES:
patent: 3926161 (1975-12-01), Wertheimer
patent: 3970061 (1976-07-01), Caldwell
patent: 3973535 (1976-08-01), Sugihara et al.
patent: 3974807 (1976-08-01), Nohira et al.
patent: 3981283 (1976-09-01), Kaufman
patent: 4027638 (1977-06-01), Moriya et al.
patent: 4031871 (1977-06-01), Hamanishi
patent: 4041917 (1977-08-01), Suzuki
patent: 4046120 (1977-09-01), Laprade et al.
patent: 4071003 (1978-01-01), Aono
Adams Bruce L.
Burns Robert E.
Burns Wendell E.
Lobato Emmanuel J.
Nissan Motor Company Limited
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