RELIEF VALVE FOR A HIGH-PRESSURE PUMP, IN PARTICULAR PLUG-IN PUMP, AND HIGH PRESSURE PUMP WITH SUCH A RELIEF VALVE

摘要

The invention relates to an overflow valve (1) for a high pressure pump (2), in particular plug-in pump, in a fuel injection system of an internal combustion engine, comprising a valve piston (3), which for connecting an inlet (4) with a return (5) against the spring force of a valve spring (6) is received in a central bore (7) of a valve housing (8) axially displaceable. According to the invention the valve housing (8) comprises at least two radial bores (9, 10) which are arranged at an axial distance from one another and into the bore (7) open, said first radial bore (9) part of the inlet (4) and the second radial bore (10) is part of the return run (5).; Further, the invention relates to a high-pressure pump (2), in particular plug-in pump, with such a relief valve (1).