Fuel delivery control arrangement

Details Fuel delivery control arrangement Fuel delivery control arrangement

F - Mech Eng,Light,Heat,Weapons

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F02M 57/02 (2006.01) F02M 59/36 (2006.01)

Patent

CA 1160523

370-79-0560 ABSTRACT FUEL DELIVERY CONTROL ARRANGEMENT A valving arrangement is disclosed for varying the quantity and timing of fuel injections of a jerk pump (10) associated with an internal combustion engine. The arrangement consists of a bypass valve (40) in com- munication with the injection chamber (22) of the jerk pump (10) which produces a controlled bypass of fuel rather than being delivered through the injector de- livery valve (42) to the engine cylinders. The bypass valve (40) in turn is controlled by a solenoid-operated three-way pilot valve (883 which causes pressurizing or venting of an operating chamber (84) adjacent a by- pass valve operator piston (80). The three-way pilot valve (88) in turn is controlled by the fuel system electronic controls (98) to control the timing and volume of fuel charge delivered by the jerk pump (10) in each injection cycle.

377498

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