F - Mech Eng,Light,Heat,Weapons – 16 – C
Patent
F - Mech Eng,Light,Heat,Weapons
16
C
64/4
F16C 1/02 (2006.01)
Patent
CA 1091050
ABSTRACT A progressing cavity, positive displacement rotary pump for liquid or semiliquid material, having a specially designed flexible coupling shaft for connecting a drive shaft to an orbital rotor. The pump components include a tubular stator with an interior helical surface and a hollow tubular orbital rotor within the stator operably connected to the shaft and having an exterior helical surface. The rotor and stator define therebetween sealed pumping cavities that advance axially as the rotor rotates and orbits within the stator. The rotor has a tapered socket with a polygonal transverse cross-section (e.g., pyramid-shaped) at its outer end. The rotor is coupled to the rotor drive shaft by the flexible coupling shaft that extends through the hollow rotor and that has an enlarged taper- ed head formed to fit tightly in the socket and be retained therein by a threaded fastener. The opposite end of the coup- ling shaft is connected to the drive shaft outside of the rotor. The coupling shaft flexes to accommodate orbital movement of the rotor during operation of the pump. Also, a unique seal retainer is used to locate a packing-gland-type shaft seal for the drive shaft. The retainer facilitates removal and replace- ment of the seal components.
310924
Allen Clifford H.
Macrae & Co.
LandOfFree
Flexible shaft assembly for progressing cavity pump does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Flexible shaft assembly for progressing cavity pump, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flexible shaft assembly for progressing cavity pump will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-897069