Pump assembly

Details Pump assembly Pump assembly

F - Mech Eng,Light,Heat,Weapons

04

C

103/96

F04C 2/00 (2006.01) F04C 15/00 (2006.01)

Patent

CA 1079121

ABSTRACT An improved pump assembly includes a pressure plate having inlet and outlet ports for conducting fluid to and from a pumping chamber. The pressure plate includes three layers formed by plate sections having major side surfaces which are bonded together to prevent leakage between the layers. A first one of the plate sections has an outer side surface which is disposed adjacent to the pump rotor. This first plate section is advantageously made of a wear-resistant material to minimize wear upon rotation of the rotor. An intermediate plate section is disposed between the first plate section and a second plate section. The intermediate place section cooperates with at least one of the two outer plate sections to form a passage which interconnects a pair of ports formed in the pressure plate. In the illustrated embodiment of the invention, the passage is utilized to connect a pair of inlet ports in fluid communication.

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