System for controlling fuel injection for multiple-...

Details System for controlling fuel injection for multiple-... System for controlling fuel injection for multiple-...

F - Mech Eng,Light,Heat,Weapons

02

D

341/38.16

F02D 41/30 (2006.01) F02D 17/00 (2006.01) F02D 41/36 (2006.01) F02B 1/04 (2006.01)

Patent

CA 1210113

SYSTEM FOR CONTROLLING FUEL INJECTION FOR MULTIPLE-DISPLACEMENT ENGINES Abstract of the Disclosure A system for controlling fuel injection for a multiple-displacement engine in which the number of operating cylinder changes according to the load on the engine by cutting off fuel to some of cylinders. The engine has solenoid-operated fuel injection valves and a switch is provided for rendering each solenoid-operated fuel injection valve inoperative. A sensor is provided for detecting load on the engine and for producing an output dependent on the load. A fuel injection control circuit is responsive to the output of the sensor for operating the switch to cut off the fuel to the corresponding cylinder. The fuel injection control circuit is so arranged to cut off the fuel to cylinders at random and such that the number of idle cylinder by the fuel cut-off decreases with the increase of the load on the engine. - 9 -

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