EGR Control system

Details EGR Control system EGR Control system

1979-05-30

1980-12-02

Burns, Wendell E.

Internal-combustion engines

Valve

Rotary

F02M 2506

Patent

active

042364930

ABSTRACT:
An EGR control system includes a plurality of ON-OFF air valves to control the amount of air admitted into a control passage extending from a source of constant vacuum to a control vacuum chamber upon which an EGR control valve is operated. The air valves are selectively energized by a controller containing a microcomputer wherein an exhaust gas control strategy is stored.

REFERENCES:
patent: 3791144 (1974-02-01), Lang
patent: 4069797 (1978-01-01), Nohira et al.
patent: 4071003 (1978-01-01), Aono
patent: 4090482 (1978-05-01), Yoshida
patent: 4164208 (1979-08-01), Okitsu et al.

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