Injection system combustu00ecvel gas for an internal combustion engine, and.Methods for controlling the operation of a gasoline direct injection system of the common feeder of high pressure to an internal combustion engine.And to control a fuel injection system of the common feeder combustu00ecvel gasoline

摘要

"Combustu00ecvel gasoline injection system for an internal combustion engine, and.Methods for controlling the operation of a gasoline direct injection system of the common feeder of high pressure to an internal combustion engine.And to control a fuel injection system of the common feeder combustu00ecvel gasoline. A management unit includes means for engine electronics act each injector individually at a different time is selected, and by a prescribed interval during each cycle of the engine.A pump supplies high pressure fuel having a passage of high pressure discharge is smoothly connected to the common feeder.And a passage of the fuel inlet supply of low pressure.A control subsystem controls the discharge pressure of the pump between injection events, causing the pump discharge so that instead of distributing the common feeder.The flow of recirculated by the pump at a lower pressure.This is preferably carried out by a passage of input control smoothly connected to the inlet of the fuel supply of low pressure.A passage to control discharge smoothly connected to the high pressure discharge passage, and a check valve without feedback in the passage of high pressure discharge.The passage of the control of discharge and the common feeder, which opens to the common feeder.A control valve is smoothly connected to the passage of input control and movement control of unloading, and means of switching is coordinated with the means to actuate each injector.While the pump discharge passes through the control circuit, but immediately prior to each actuation of the injector.The hydraulic circuit is substantially closed by means of the outlet pressure of pump rises from the retention pressure to high pressure.When the outlet pressure of the pump reaches the high pressure, an injector is actuated.