Overflow valve, in particular for a high-pressure pump, as well as high pressure pump and fuel injection system

摘要

The invention relates to an overflow valve, in particular for a high-pressure pump in a fuel injection system, comprising a valve body (1) and a in an axial bore (2) of the valve body (1) axially displaceably accommodated valve piston (3), which in the direction of an end-face inlet opening (4) of the spring force of a spring (5) is acted upon, wherein the inlet opening (4) a filter device (6) is disposed in front of. According to the invention, the filter device (6) a plastic housing (7) having at least one integrated filter fabric (8).Furthermore, the invention relates to a high-pressure pump, in particular for a fuel injection system with such an overflow valve as well as a fuel injection system with a corresponding high pressure pump.