Internal-combustion engines – Intake manifold – Manifold tuning – balancing or pressure regulating means
Patent
1976-07-15
1977-09-20
Burns, Wendell E.
Internal-combustion engines
Intake manifold
Manifold tuning, balancing or pressure regulating means
F02M 2506
Patent
active
040489680
ABSTRACT:
Passage means communicating an EGR passage between first and second EGR control valves with a vacuum chamber of an actuator of the second EGR control valve is prevented from being clogged by solids of the engine exhaust gases by the provision of an air pump for feeding air to fill the passage means between an orifice therein and the EGR passage with air and to make the amount of engine exhaust gases passing through the orifice nearly zero.
REFERENCES:
patent: RE27993 (1974-04-01), Walker
patent: 3380245 (1968-04-01), Mick
patent: 3802402 (1974-04-01), Swatman
patent: 3834363 (1974-09-01), Goto et al.
patent: 3868934 (1975-03-01), Mick
patent: 3882837 (1975-05-01), Horie et al.
patent: 3931813 (1976-01-01), Horie et al.
patent: 3970061 (1976-07-01), Caldwell
patent: 3977381 (1976-08-01), Fusikawa et al.
Burns Wendell E.
Nissan Motor Company Limited
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