| 摘要 |
PROBLEM TO BE SOLVED: To prevent oil leakage from a variable throttle valve, even if the pressure adjustment is made during its operation. SOLUTION: A variable throttle valve 13, which controls the fluid flow rate passing through an orifice hole 8 by making the insertion length of a rod 2 which is inserted into the orifice hole 8 holed in a throttle flange 1 change, is installed with an O-ring 9 in the space between a presser plate 3 attached to the throttle flange 1, and the rod 2.
|
