| 摘要 |
PCT No. PCT/ES94/00037 Sec. 371 Date Jan. 20, 1995 Sec. 102(e) Date Jan. 20, 1995 PCT Filed Apr. 12, 1994 PCT Pub. No. WO95/01514 PCT Pub. Date Jan. 12, 1995A cutoff valve for pistons of hydraulic self-adjusting devices, comprising an essentially cylindrical through element (18), attached axially to the internal end of the rod (3) of the device (1), and a cutoff element (19), also essentially cylindrical, arranged coaxially with the rod (3) on which it slides with a tight fit. The through element (18) has through holes (23) through which the liquid fluid (F) contained within the main body (2) of the device (1) can flow. The cutoff element (19) has a cutoff joint (29), which can block the holes (23) of the through element (18), and a peripheral thickening (30) provided with a sealing joint or ring (33) and a number of channels (31) through which the liquid fluid (F) can flow freely. The cutoff valve can be used in the car industry.
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