Fuel priming system with integral auxilliary enrichment feature

Details Fuel priming system with integral auxilliary enrichment feature Fuel priming system with integral auxilliary enrichment feature

1983-06-29

1985-02-12

Lall, Parshotam S.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

261DIG73, F02N 1700

Patent

active

044984340

ABSTRACT:
A system for priming and temporarily enriching the air/fuel mixture for a crankcase scavenged, two-cycle engine having a fuel pump supplying fuel to a carburetor for mixture with air for delivery to an induction manifold leading to the engine crankcase where it is compressed and transferred to the cyclinder combustion chamber through a passage, the system includes a solenoid valve controlled by a switch so the valve opens when the switch is turned on to start the engine. The valve inlet is connected to the fuel pump. The valve outlet is connected to a conduit means which is connected to the transfer passage to inject fuel to prime the engine. The valve outlet is also connected to a conduit connected to the induction manifold to enrich the air/fuel mixture therein. The fuel in conduits is drawn into the manifold after said valve closes to thereby enrich the air/fuel mixture long enough for the engine to warm up.

REFERENCES:
patent: 3614945 (1971-10-01), Schlagmuller et al.
patent: 4286553 (1981-09-01), Baltz et al.
patent: 4373479 (1983-02-01), Billingsley et al.
patent: 4375206 (1983-03-01), Baltz et al.

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