Start enrichment circuit for internal combustion engine fuel con

Details Start enrichment circuit for internal combustion engine fuel con Start enrichment circuit for internal combustion engine fuel con

1976-12-20

1978-09-19

Myhre, Charles J.

Internal-combustion engines

Noncompression

123 32EA, 123179L, 123179G, 123119A, F02B 302, F02M 700

Patent

active

041145704

ABSTRACT:
Disclosed herein is a start enrichment circuit for an electronic fuel control system when the engine temperature is above or below its nominal operating temperature range. The circuit produces a start enrichment signal having an initial temperature dependent value while the starter is being energized which decay as a function of time after the engine starts. The preferred embodiment also provides a start enrichment signal within the nominal engine temperature range when the exhaut gas recirculation valve is in an activated state.

REFERENCES:
patent: 3566846 (1971-03-01), Glockler
patent: 3705571 (1972-12-01), Horn et al.
patent: 3749070 (1973-07-01), Oishi et al.
patent: 3923031 (1975-12-01), Keranen
patent: 3971354 (1976-07-01), Luchaco et al.
patent: 4027641 (1977-06-01), Moder

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