Cold-start engine priming and air purging system

Details Cold-start engine priming and air purging system Cold-start engine priming and air purging system

1989-03-16

1990-03-06

Dolinar, Andrew M.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

123180E, 123180P, 123180T, 123516, F02M 116

Patent

active

049056417

ABSTRACT:
A fuel delivery system for purging air from the reservoir of a diaphragm carburetor on an internal combustion engine and for supplying priming fuel to the carburetor air intake. A pump is responsive to electrical signals from priming control circuitry to draw fuel through the carburetor reservoir and to fuel under pressure to a nozzle positioned at the carburetor air intake. The electronic control circuitry is responsive to an operator for initiating a priming operation and includes a temperature sensor coupled to the engine for controlling duration of the priming operation, and thus the quantity of engine priming fuel, as a function of engine temperature. A second timer is responsive to operator initiation of a priming operation for preventing regeneration of the priming control signal to the pump, and thereby preventing attempting repriming in the event of failure of the engine to start.

REFERENCES:
patent: 4694792 (1987-09-01), Uuskallio

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