Rotary fluid pump

Details Rotary fluid pump Rotary fluid pump

F - Mech Eng,Light,Heat,Weapons

04

C

103/94

F04C 5/00 (2006.01) F04C 15/00 (2006.01)

Patent

CA 1160906

ABSTRACT OF THE DISCLOSURE A rotary fluid pump has a stator housing with a generally cylindrical cavity extending therethrough and a pair of recessed end heads assembled at opposite ends of the housing to form a pump cavity therewith. A drive shaft is journalled in the end heads by bearings and extending eccentrically into the interior of the pump cavity and a rotor is mounted on the drive shaft within the pump cavity. A pair of sealing plates of different thickness are individually disposed between the ends of the stator housing and the end heads to divide the pump cavity into a pair of end chambers defined by the end head recesses and the plates and an intermediate rotor chamber defined by the plates. A plurality of vanes are slidably disposed in an equal plurality of grooves radially formed in the rotor. The drive shaft is constrained to prevent axial dis- placement by stoppers, washers or a combination thereof mounted on the shaft and contacting bearings that support the shaft. The bearings are fixed to one end head.

320366

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