| 摘要 |
PROBLEM TO BE SOLVED: To provide a spring supporting structure for a control valve, preventing unusual sounds resulting from the deformation of a compression coil spring in the radial direction. SOLUTION: The spring supporting structure for the control valve 10 comprises a valve element 2 for controlling the flow of operating fluid, a spring support 3 for storing the valve element 2, a seat 4 on which the valve element 2 is seated, and the compression coil spring 5 for pushing the valve element 2 against the seat 4. As the valve element is moved apart from the seat 4 while compressing the compression coil spring 5, the operating fluid flows through the seat 4 to the side of the compression coil spring 5. Furthermore, it has a spring holder 6 for restricting the deformation of the compression coil spring 5 in the radial direction. The spring holder 6 faces at least a central portion 5c of the compression coil spring 5 for restricting the deformation of the central portion 5c of the compression coil spring 5 in the radial direction. COPYRIGHT: (C)2005,JPO&NCIPI
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