METERING DEVICE FOR HIGH-PRESSURE PUMP

摘要

A metering device for a high-pressure pump adapted for pressurizing and pumping fuel supplied from a feed pump, wherein the metering device is provided with: an intake valve for changing the state of communication between a cylinder provided to the high-pressure pump and a feed pump communication channel for passing through which fuel provided by the feed pump flows, and for regulating the volume discharged from the high-pressure pump; a spring member for urging the intake valve toward the closed side; a valve-closing means for allowing the intake value to be moved by the spring member in the closing direction by the supply of electric power; and a compression-adjusting member for changing the amount of compression by the spring member in response to the feed pressure of the feed pump.