Acceleration fuel enrichment system for an internal combustion e

Details Acceleration fuel enrichment system for an internal combustion e Acceleration fuel enrichment system for an internal combustion e

1987-09-11

1988-10-25

Wolfe, Willis R.

Internal-combustion engines

Charge forming device

Fuel injection system

123 73A, 123438, F02D 4110, F02M 5100

Patent

active

047795980

ABSTRACT:
An engine apparatus comprising an internal combustion engine operable throughout a range of speeds including a minimum speed, a maximum speed, a first speed between the minimum speed and the maximum speed, and a second speed between the first speed and the maximum speed, the engine including an intake zone wherein relatively low pressure is created in response to engine operation, a primary fuel delivery system for delivering fuel from a fuel source to the engine for normal engine operation, a selectively actuatable secondary fuel delivery system for delivering enrichment fuel from a fuel source to the engine, and an electrical control circuit for selectively actuating the secondary fuel delivery system only when the pressure in the zone is below a predetermined level and the speed of the engine is above the first speed and below the second speed.

REFERENCES:
patent: 3719176 (1973-03-01), Shinoda et al.
patent: 3858561 (1975-01-01), Aono
patent: 4010717 (1977-03-01), Taplin
patent: 4466412 (1984-08-01), McChesney et al.
patent: 4498434 (1985-02-01), Baltz et al.
patent: 4508068 (1985-04-01), Tuggle et al.
patent: 4542726 (1985-09-01), Baltz et al.
patent: 4548181 (1985-10-01), Ishikawa et al.
patent: 4561404 (1985-12-01), Kanno et al.

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