Fuel injection system with pressure excursion start inhibit

Details Fuel injection system with pressure excursion start inhibit Fuel injection system with pressure excursion start inhibit

G - Physics

05

D

341/38.15

G05D 7/00 (2006.01) F02D 41/06 (2006.01)

Patent

CA 1110736

INVENTION: FUEL INJECTION SYSTEM WITH PRESSURE EXCURSION START INHIBIT INVENTOR: EMILE DAVID LONG ABSTRACT OF THE DISCLOSURE A fuel injection system for a spark ignition internal combustion engine employs at least one electrically energized injector. The injector connects to a fuel supply line which receives fuel from a source and is maintained at substantially constant pressure during engine operation by an engine powered fuel pressure booster. The injector is energized by a variable width electric pulse generator controlled by a sensor measuring engine operating parameters. A control circuit prevents the injector from providing fuel to the engine during start condi- tions until satisfactory pressure is obtained within the fuel line. The control circuit receives the output of a pressure switch connected to the fuel line and provides a signal that inhibits energization of the injector when the fuel line pressure is below a predetermined value.

307019

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