| 摘要 |
A pump for supplying fluid, in particular hydraulic oil, comprises a drive shaft extending into the interior of the pump housing and the shaft is mounted on at least one bearing device lubricated by a partial flow of the fluid supplied. A sealing device seals the radial gap between the housing of the pump and the drive shaft. The sealing device comprises a sealing ring of substantially U-shape cross-section. One arm of the U forms a first sealing portion resting against the drive shaft under pre-stress. The other arm of the U forms a second sealing portion resting under pre-stress against a sealing face of the housing surrounding the drive shaft. The sealing ring has a sealing area connecting the first and second sealing portions and forming the base of the U and facing the interior of the pump so that the first and second sealing portions extend from the sealing area in a direction away from the interior of the pump.
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