Solenoid valve, high-pressure fuel supply pump equipped with this solenoid valve as a suction valve mechanism

摘要

An electromagnetic valve configured to decay the cavitation occurring around a moving part of the electromagnetic valve and prevent the occurrence of erosion is provided. A configuration in which the cavitation bubbles generated around the moving part of the electromagnetic valve are captured and decayed and the occurrence of erosion is prevented is compatible with the low cost for the electromagnetic valve. The compatibility is achieved by the formation of a void large enough to capture the cavitation bubbles in the magnetic resistance increasing part.