Control circuit and method for controlling the speed of an elect

Details Control circuit and method for controlling the speed of an elect Control circuit and method for controlling the speed of an elect

1989-01-06

1990-07-10

Miller, Carl S.

Internal-combustion engines

Charge forming device

With fuel pump

123351, 123198D, F02M 3900

Patent

active

049400347

ABSTRACT:
The invention is directed to a control circuit for controlling the speed of an electric fuel pump for an internal combustion engine having fuel injection and includes a speed limit-value comparator for controlling the speed or delivery rate of the fuel pump to a value below the minimum speed or delivery rate for a speed of the engine above a specific predetermined limit speed which is impermissibly high. The minimum speed or minimum delivery rate is then the delivery rate which is required for at least building up the system pressure in the fuel injection system.

REFERENCES:
patent: 3581839 (1971-06-01), Carp
patent: 3630177 (1971-12-01), Eivgel
patent: 3648808 (1972-02-01), Kato
patent: 3693603 (1972-09-01), Lemanczyk
patent: 3817225 (1974-06-01), Priegel
patent: 3822677 (1974-07-01), Reddy
patent: 3867918 (1975-02-01), Williams
patent: 3967598 (1976-07-01), Rachel
patent: 4404939 (1983-09-01), Kinzl
patent: 4573440 (1986-03-01), Pischke
patent: 4791905 (1988-12-01), Furuta
patent: 4797826 (1989-01-01), Onogi

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