| 摘要 |
PROBLEM TO BE SOLVED: To provide a high pressure fluid feeding apparatus and a hydraulic brake device for vehicle provided with the above apparatus capable of inhibiting a noise and a vibration generated when high pressure fluid from a high pressure generation source is fed to a pressure-forming chamber. SOLUTION: This hydraulic brake device is provided with a spool cylinder 34 and a spool valve 35 slidably supported in a hollow portion of the cylinder 34. A first communication hole 70 for introducing high pressure brake fluid to the hollow portion is provided on the cylinder 34 and a first circumferential groove 77 is provided on a valve 35. A flow passage communicating with a control chamber R4 is formed between the cylinder 34 and the first circumferential groove 77. When the valve 35 slides in the cylinder 34, the high pressure brake fluid is fed to the control chamber R4 through a flow passage, etc., formed between the cylinder 34 and the first circumferential groove 77. A stepped portion of the first circumferential groove 77 is gently formed through an inclined surface 80a. |
