Fuel mixture enrichment system for internal combustion engine

Details Fuel mixture enrichment system for internal combustion engine Fuel mixture enrichment system for internal combustion engine

1983-06-09

1985-04-02

Lall, Parshotam S.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

417555R, 261DIG73, 222384, F02N 1700

Patent

active

045080682

ABSTRACT:
A fuel priming system for spark ignited internal combustion engines includes a manually actuated plunger pump for delivering liquid fuel from a tank to a reservoir chamber formed in part by a flexible diaphragm. A fuel injection passage leads from the reservoir chamber through a flow restricting orifice to an injection point formed in the engine intake air flow passage downstream of the carburetor venturi. The injection system provides for enriching the fuel-air mixture during cold starting while minimizing the chance of engine flooding. The finite fuel volume in the reservoir chamber also provides a sufficient quantity of fuel for automatic control of a rich fuel-air mixture during engine warm-up.

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patent: 4373479 (1983-02-01), Billingsley et al.
patent: 4375206 (1983-05-01), Baltz et al.

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