Fuel high-pressure pump for fuel injection system of internal-combustion engine of motor vehicle, has slots extending from central through-hole of spring disk, which is supported at guided piston in axial direction

摘要

The pump (1) has a pump element (3) including a guided piston (8) and a piston ring (29), which is supported at a spring disk (25). The spring disk includes slots, which extend from a central through-hole of the spring disk, where the spring disk is supported at the back and forth movable guided piston in an axial direction. The spring disk is radially divided into snatching elements by the slots. The slots are flow-radially provided into recesses, which are provided in the spring disk. The spring disk is supported at a support ring in the axial direction.