Fluid pump e.g. high pressure fuel pump of motor vehicle, has energy storage unit that is connected to cam portion of drive shaft to receive energy from cam portion due to revolution of drive shaft and to deliver energy to cam portion

摘要

The fluid pump (24) has a drive shaft (38) with a cam portion (36) and a cam portion driven feed element (30). An energy storage unit (34) is connected with the cam portion of the drive shaft through drive roller or rocker arm so as to receive energy from the cam portion due to the revolution of the drive shaft and to deliver energy to the cam portion. The energy storage unit is provided with a spring.