| 摘要 |
<p>In a traditional vane pump a rotor is supported on a shaft which is in turn supported by a pair of bearings on opposing walls of a housing. Any misalignment in the bearings can cause premature wear and a loss of efficiency in the pump. Provided is a vane pump (10) comprising a case (30), a rotor (60) disposed in the case (30), the rotor (60) having a bore (70), a plurality of vanes (64) radially moveable with respect to the rotor (60) extend from the rotor (60), a drive shaft (90) engaged with the bore (70), a second shaft (46) fixedly connected to the case (30) and extending from the case (30) to slidmgly engage the bore (70), a land (74, 76) extending from each end of the rotor (60), each land (74, 76) cooperating with the case (30) to seal a fluid flow, and each land (74, 76) further axially controlling a rotor position within the case (30) by a sliding engagement, and the drive shaft (90) retamable in a predetermined position with respect to the case (30).</p> |
