Solenoid valve, high pressure fuel supply pump provided with solenoid valve and fuel injection valve

摘要

PROBLEM TO BE SOLVED: To provide a solenoid valve capable of suppressing erosion damage due to cavitation.SOLUTION: A thin wall processing portion 205S of magnetic throttle is provided on an inner diameter side in a yoke 205. Or, the surface of an inner diameter part 205S of the yoke 205 is hardened. Further, the thin wall processing portion 205S of magnetic throttle is provided on the inner diameter side in the yoke 205, and simultaneously the surface of the inner diameter part of the yoke 205 is hardened. A cross sectional area is increased by providing the thin wall processing part 205S on the inner diameter side of the yoke 205 and the surface of the inner diameter part of the yoke 205 is hardened, to thereby improve strength.