| 摘要 |
PURPOSE:To make it possible to secure a turning point of a car when it is empty, i.e., an instant when a control operation is started, with a simplified structure by diminating the necessity for a check valve for delaying the pressure reception by a control plunger as well as assigning a single spring to the return spring of a driving piston. CONSTITUTION:A bushing 7 is fitted to a step part 5 on the internal surface of housing provided with an inlet 2 and an outlet 3 such that they make contact with each other, and positioned by making use of the engagement of the thread of a plug 4. To the inside of the bushing 7, the first and second guides 8, 9 are fitted, and a valve driving piston 6 having a valve part 10 is slidably supported in the first guide 8 to form a control valve 12. One end of a spring 14 is supported on a retainer 13 allowed to make contact with the right end of the piston 6, and the other end is supported on a control plunger 15 supported inside the second guide 9. And, a control chamber 23 comparted with a control plunger 15 is communicated, via a through hole 20, to a pressurizing chamber 19 for housing a ball 24 as a G valve. The pressure receiving surface of said control plunger 15 is smaller than that of the piston 6. |
