Low voltage supply control system for fuel injectors

Details Low voltage supply control system for fuel injectors Low voltage supply control system for fuel injectors

1986-10-30

1988-06-28

Wolfe, Jr., Willis R.

Internal-combustion engines

Charge forming device

Fuel injection system

361154, F02M 5100

Patent

active

047532076

ABSTRACT:
A low voltage supply control system provides on command a voltage doubling of the supply voltage to the fuel injector coils of a fuel injection system. The command signal is responsive to the magnitude of the battery voltage falling below a predetermined level at any time during the operation of the fuel injection systems be it on cold starting or during a component failure in the power generating system of the vehicle during operation. The advantage of this system is that the impedance of the fuel injector coils is typically many times higher than that of coils used without the low voltage supply control system. Overall the cost advantages of the low voltage supply control system are very attractive.

REFERENCES:
patent: 3613644 (1971-10-01), Porsche et al.
patent: 4040397 (1977-08-01), Leichle
patent: 4140084 (1979-02-01), Di Nunzio
patent: 4161306 (1979-07-01), Brune et al.
patent: 4576135 (1986-03-01), Johnson
patent: 4607311 (1986-08-01), Brown et al.

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