| 摘要 |
<p>The device has a valve unit (25) and an operating pedal (10). A sliding valve member (21) and two seats form an intake valve and an outlet valve. A regulator spring (24) is located between a stepped piston (30) and a valve housing (26). The outlet valve seat (15) is located on the valve tappet (14), and the intake valve seat (33) is located on the stepped piston. The piston is hollow and has a passage facing a pressure relief outlet (28). The valve member slides sealed in the piston, and has a pressure relief channel (27) opening into intake and outlet valve seats.</p> |
