Exhaust gas recirculation control system for an engine

Details Exhaust gas recirculation control system for an engine Exhaust gas recirculation control system for an engine

1986-10-07

1987-11-10

Wolfe, Jr., Willis R.

Internal-combustion engines

Charge forming device

Crankcase vapor used with combustible mixture

204425, F02M 2506

Patent

active

047050098

ABSTRACT:
In an exhaust gas recirculation control system for an internal combustion engine, intake air at the same pressure as that of a mixed gas flowing in an intake duct 2 and free from the exhaust gas is introduced to a reference air chamber 5 of an oxygen sensor 4. Any detecting errors due to a pressure difference between the mixed gas in the intake duct and the reference gas in the air chamber are thus eliminated.

REFERENCES:
patent: 4005689 (1977-02-01), Barnard
patent: 4108122 (1978-08-01), Barnard
patent: 4385616 (1983-05-01), Kobayashi et al.
patent: 4409949 (1983-10-01), Tanaka et al.
patent: 4426987 (1984-01-01), Latsch et al.
patent: 4471745 (1984-09-01), Yoshioka et al.
patent: 4578172 (1986-03-01), Yamada et al.
patent: 4614175 (1986-09-01), Asayama

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