Abrasion resistant pump thrust bearing

Details Abrasion resistant pump thrust bearing Abrasion resistant pump thrust bearing

F - Mech Eng,Light,Heat,Weapons

04

D

F04D 29/04 (2006.01) F04D 29/44 (2006.01)

Patent

CA 2599661

A centrifugal pump (15) has a stationary diffuser (27) with a bore (33a, 33b, 33c. A thrust bearing 837) has a tubular portion that inserts into the bore. The thrust bearing (37) has an external shoulder (45) that contacts a support surface (47) in the bore (33b, 33c) of the diffuser (27) for transmitting downward thrust from an upstream impeller (29) to the diffuser (27) . The thrust bearing (37) has an internal shoulder (42) for transmitting upward thrust from a downstream impeller to the diffuser (27) .

La présente invention concerne une pompe centrifuge (15) qui possède un diffuseur stationnaire (27) avec un alésage (33a, 33b, 33c). Un palier de butée (837) possède une partie tubulaire qui s~insère dans l~alésage. Le palier de butée (37) possède un épaulement externe (45) qui entre en contact avec une surface de support (47) dans l~alésage (33b, 33c) du diffuseur (27) pour transmettre une poussée vers le bas à partir d~une roue en amont (29) jusqu'au diffuseur (27). Le palier de butée (37) possède un épaulement interne (42) pour transmettre une poussée vers le haut à partir d~une roue en aval jusqu'au diffuseur (27).

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