Pump

Details Pump Pump

F - Mech Eng,Light,Heat,Weapons

04

C

F04C 2/08 (2006.01) F01C 21/02 (2006.01) F04C 2/14 (2006.01) F04C 15/00 (2006.01)

Patent

CA 2349007

A hydraulic pump includes a pump mechanism (12) having a driven shaft (16). The driven shaft (16) is connected to an input shaft (50) by a flexible coupling such as a splined connection. A housing (30) extends completely around the driven shaft (16), and a high-pressure seal (74) is disposed between the housing (30) and the input shaft (50). A thrust bearing (72) carries hydraulic axial forces on the input shaft (50) to the housing (30). This arrangement provides balanced hydraulic forces on both ends (18, 20) of the driven shaft (16), thereby reducing friction and wear.

Pompe hydraulique comprenant un mécanisme (12) de pompage ayant un arbre mené (16). L'arbre mené (16) est couplé à un arbre primaire (50) par un couplage souple tel qu'une connexion cannelée. Un carter (30) entoure complètement l'arbre mené (16) et un joint haute pression (74) est positionné entre le carter (30) et l'arbre primaire (50). Un palier de butée (72) transmet au carter (30) les forces axiales hydrauliques s'appliquant sur l'arbre primaire (50) . Ce système permet d'équilibrer les forces hydrauliques s'exerçant sur les deux extrémités (18, 20) de l'arbre mené (16), ceci réduisant ainsi le frottement et l'usure. .

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