| 摘要 |
The invention concerns an improved braking valve. The body of the valve comprises chambers, and encloses a blocking component and a governing piston. The diameter of the bore in which slides the governing piston at the rear of the chamber is equal to the diameter of the line along which the truncated conical bearing surface of the blocking component comes into contact with a seat situated between the chambers. The pressure in the chamber, connected to an outlet of a distributor, has no effect on the balance position of the blocking component. The valve is useful in holding a raised load in case of breakage in a hydraulic channel. |
