Device for filling or deflating a tire of a vehicle, especially of a tractor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 2, 2002
Grant Date -
Apr 4, 2002
app pub date -
Sep 12, 2001
filing date -
Sep 12, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A device to fill or deflate a tire of a vehicle, such as a tractor, is arranged on the wheel rim of a wheel. The device includes a housing 14 with a second connecting port 11 to connect to a first connecting port 10. An inner member 21 is supported in the housing 14. The inner member 21 and housing 14 are both rotatable relative towards each other. The inner member 21 has a third connecting port 29 to connect to a connection 31, 32, which leads to the pressure supply. A control valve 9 is provided and coupled with the second connecting port. An annular chamber 25 is connected to the second connecting port 11 and the third connecting port 29. The annular chamber 25 is formed between the housing and the inner member 21. Two seals 26 are provided between the housing 14 and the inner member 21. The seal 26 laterally closes off the annular chamber 25. The seals are arranged on the inner member 21 and abut, due to the pressurization of the annular chamber, a respective one of the mating surfaces 27, 28 connected to the housing 14.
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