Exhaust gas purification control apparatus for internal combusti

Details Exhaust gas purification control apparatus for internal combusti Exhaust gas purification control apparatus for internal combusti

1980-09-24

1983-01-25

Burns, Wendell E.

Internal-combustion engines

Charge forming device

Exhaust gas used with the combustible mixture

123571, F02M 2506

Patent

active

043697526

ABSTRACT:
An exhaust gas purification control apparatus for an internal combustion engine wherein vacuum signals applied to air fuel mixture control, exhaust gas recirculation control, and ignition timing control are modified by a vacuum signal modifier. The vacuum signal modifier is operative in response to a pressure signal applied thereto. This pressure signal is produced by a pressure signal control device by diluting a venturi vacuum with air.

REFERENCES:
patent: 3800766 (1974-04-01), Schubeck
patent: 4002154 (1977-01-01), Kestner
patent: 4117814 (1978-10-01), Takahashi
patent: 4193381 (1980-03-01), Aoyama

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