Pump with radial packing ring
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United States of America Patent
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-
May 19, 2009
Grant Date -
Nov 9, 2006
app pub date -
Jun 24, 2004
filing date -
Jun 30, 2003
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A pump, preferably a vane cell pump for supplying a transmission with oil, includes a pump housing and a rotating group which is disposed inside the pump housing. The rotating group includes a side plate that may be mounted inside the pump housing in such a manner as to produce, at least temporarily, an axial gap between the side plate and the pump housing. A shaft is mounted inside the pump housing and a radial packing ring is located in a recess around the shaft. The packing ring seals off the rotating group towards the exterior radially on the pump housing and radially on the shaft using a sealing lip.
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