| 摘要 |
<p>PCT No. PCT/EP96/03572 Sec. 371 Date May 18, 1998 Sec. 102(e) Date May 18, 1998 PCT Filed Aug. 13, 1996 PCT Pub. No. WO97/10132 PCT Pub. Date Mar. 20, 1997To effectively prevent a hydraulically operated change-over valve for a hydraulic brake system from fluttering, according to the present invention, an air cushion which attenuates pressure pulsations is incorporated in the inlet chamber of the valve. This air cushion is provided in a simple manner by a preassembled unit comprising a metal bowl, a diaphragm, and a metal annular disc which is calked at its periphery with the edge of the metal bowl so that the diaphragm is clamped in a sealed manner.</p> |
