F - Mech Eng,Light,Heat,Weapons – 04 – C
Patent
F - Mech Eng,Light,Heat,Weapons
04
C
230/137
F04C 19/00 (2006.01) F04C 27/00 (2006.01)
Patent
CA 1321177
ABSTRACT Improvements in the sealing area and dynamic operation of liquid ring pumps. The sealing improvement involves providing aspirating means between the cone inlet and the fluid adjacent the shaft on the inboard or high pressure side of the sealing area. In operation, the high pressure fluid that would tend to leak past the seal in prior art to contaminate the bearings or create a potentially dangerous gas explosion is harmlessly aspirated off into the gas being drawn into the pump. Further, in doing so, the sealing properties of the pump seal are enhanced. The dynamic improvement is directed particularly to duplex liquid ring pumps and calls for the rotor blades on one side of the central partition to be offset or out of phase from the mirror-image rotor blades on the other side of the partition. In this manner, the offset rotor blades in the adjacent pump chambers have a counter balancing effect to improve the operation of the pump be reducing the amplitude of the dynamic pulsations resulting in a pump with smoother operation and longer life.
561480
Borden Ladner Gervais Llp
Somarakis Inc.
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