| 摘要 |
A relay valve (2) includes a housing having a pressure medium inlet that can be connected to a pressure medium source, at least one pressure medium outlet that can be connected to a consumer, at least one control input, and at least one ventilation (32) leading to the atmosphere. The relay valve (2) has further a relay valve piston (14), which is arranged in the housing along a relay valve piston axis (16) in a slidable manner. The relay valve (2) has a first sealing element (54) fixed to the housing , and a second sealing element (56) fixed to the relay valve piston for sealing the relay valve piston (14) with respect to the housing. An annular space (58) having a connection to the atmosphere is defined by the first sealing element (54), the second sealing element (56), the relay valve piston (14), and the housing. |
| 主权项 |
1. A relay valve for a compressed air system, comprising:
a housing comprising
a pressure medium input configured to be connected to a pressure medium source,at least one pressure medium output configured to be connected to a consumer,at least one control input,. andat least one purge (32) leading to atmosphere, a relay valve piston (14) which is arranged in the housing displaceably along a relay valve piston axis (16), a first sealing element (54) for sealing the relay valve piston (14) against the housing, wherein the first sealing element (54) is fixed to the housing, a second sealing element (56) for sealing the relay valve piston (14) against the housing, wherein the second sealing element (56) is fixedly arranged on the relay valve piston (14), an annular chamber (58) which is delimited by the first sealing element (54), the second sealing element (56), the relay valve piston (14) and the housing, and a connection of the annular chamber (58) to the atmosphere. |
