EGR control system for engine equipped with fuel injection syste

Details EGR control system for engine equipped with fuel injection syste EGR control system for engine equipped with fuel injection syste

1978-04-18

1979-12-04

Burns, Wendell E.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

F02M 2506

Patent

active

041766385

ABSTRACT:
An EGR control system for a motor vehicle engine equipped with an electronically controlled fuel injection system is so arranged and constructed that EGR rate is controlled in accordance with the mutual action of pressure in an EGR passageway and venturi vacuum generated at a venturi in an intake passageway under urban area driving condition, whereas in accordance with the mutual action between the pressure in the EGR passageway and pressure in the intake passageway immediately downstream of an airflow meter forming part of the electronically controlled fuel injection system under suburban area driving condition.

REFERENCES:
patent: 3931813 (1976-01-01), Horie et al.
patent: 4031871 (1977-06-01), Hamanishi
patent: 4041917 (1977-08-01), Suzuki
patent: 4056084 (1977-11-01), Baumgartner
patent: 4069797 (1978-01-01), Nohira et al.
patent: 4092960 (1978-06-01), Nohira et al.
patent: 4094287 (1978-06-01), Nohira
patent: 4112894 (1978-09-01), Nohira
patent: 4128089 (1978-12-01), Takimoto
patent: 4137874 (1979-02-01), Otsubo et al.

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