RELIEF VALVE

摘要

A relief valve comprises a ball body separated from a seat member when a pressure of a working oil from a supply passage exceeds a set pressure, and a ball-body support member biased by a biasing member and supporting the ball body. The ball-body support member comprises a holding recess portion for holding the ball body and a taper portion formed around the holding recess portion and inclined so as to become deeper toward the holding recess portion.

主权项

1. A relief valve adapted to open when a pressure of an working fluid exceeds a set pressure, comprising:
a seat member having a supply passage through which the working fluid is supplied; a ball body adapted to close the supply passage in a state seated on the seat member and to be separated from the seat member when the pressure of the working fluid supplied from the supply passage exceeds the set pressure; a ball-body support member adapted to support the ball body between the ball-body support member and the seat member; and a biasing member adapted to bias the ball-body support member toward the seat member with the set pressure, wherein the ball-body support member comprises:
a holding recess portion facing the supply passage and adapted to hold the ball body; anda taper portion formed around the holding recess portion and inclined to become deeper toward the holding recess portion.