Additional air control device

Details Additional air control device Additional air control device

1976-11-09

1978-02-28

Burns, Wendell E.

Power plants

Internal combustion engine with treatment or handling of...

Having means analyzing composition of exhaust gas

123119EC, 123119VC, 123124B, 123119D, F02B 7510

Patent

active

040758354

ABSTRACT:
In controlling an amount of intake air of an internal combustion engine, an error due to the delay time between the time at which the air-fuel ratio changes in the intake system of the engine and the time at which a gas sensor in the exhaust system of the engine senses the changes is compensated. At least two delay factor detectors, e.g., an engine speed sensor and a pressure sensor control the driving and stopping of a drive motor coupled to a control valve mounted in the additional air passage in the intake system to thereby adjust the amount of additional air supply.

REFERENCES:
patent: 3745768 (1973-07-01), Zechnall et al.
patent: 3759232 (1973-08-01), Wahl
patent: 3815561 (1974-06-01), Seitz
patent: 3827237 (1977-08-01), Linder et al.
patent: 3960118 (1976-06-01), Konomi et al.
patent: 3973529 (1976-08-01), Wessel et al.
patent: 4019470 (1977-04-01), Asano
patent: 4020813 (1977-05-01), Hattori et al.
patent: 4029061 (1977-06-01), Asano
patent: 4031866 (1977-06-01), Asano

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