| 摘要 |
The invention relates to a scavenge-air regulator for a device (68) for drying compressed air. Said scavenge-air regulator has a housing (20) wherein a valve element (22) is guided, said valve element being able to slide along a sliding section. The valve element has a) two driving surfaces (26, 28) which run crosswise to the sliding section and which point in opposite directions, one of said driving surfaces forming a first chamber (36) with the inner walls of the housing for the incoming pressure of the compressed air of the drying device and having connecting means for joining to the compressed air inlet of the drying device, and the other forming a second chamber (48) with the inner walls of the housing for the outgoing pressure of the compressed air of the drying device and having connecting means for joining to the compressed air outlet of the drying device; and b) a rotationally symmetrical valve area (50, 52). Starting from a closing area (50) which is guided in a corresponding inner bore (54) in the housing (20), said valve area turns into a control area (52).
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