| 摘要 |
PROBLEM TO BE SOLVED: To secure pressure regulating accuracy by preventing lubricating oil from being deteriorated between the sliding surfaces of a shaft and a bush, reducing deposits of products, and preventing sliding from being deteriorated in a pressure regulating valve. SOLUTION: This pressure regulating valve comprises a core 2 and a plunger 4 acting load on a valve element 13 through a shaft 40 inserted into a hollow part 21. A bush 5 having a sliding surface 5a with a shaft 40 formed of a resin material is disposed in the hollow part 21 of the core 2. A lubricating oil inlet/outlet oil passage T lubricating the sliding surfaces between the bush 5 and the shaft 40 is formed in the inner peripheral surface of the core. COPYRIGHT: (C)2005,JPO&NCIPI
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