Pump bushing device and associated methods

Details Pump bushing device and associated methods Pump bushing device and associated methods

F - Mech Eng,Light,Heat,Weapons

04

D

F04D 29/08 (2006.01) F04D 29/04 (2006.01) F04D 29/12 (2006.01)

Patent

CA 2447872

A pump bushing device (10) that is adapted and configured to admit pressurized flushing fluid into a seal cavity of a pump, flushing debris therefrom without removal of the pump bushing device, including a cylindrical body (12) defining an axial bore (14) extending therethrough for accommodating a shaft of a pump; a plurality of circumferentially spaced-apart, axially-extending, angled slots (16) formed in an inner peripheral wall of the axial bore; and a plurality of apertures (20) extending radially inward at an angle from the outer periphery of the cylindrical body to the axial bore. Wherein the plurality of angled slots and the plurality of apertures receive pressurized flushing fluid.

Cette invention concerne un dispositif de bague de pompe (10) conçu et construit pour laisser passer un liquide de rinçage sous pression dans une cavité étanche de pompe, chasser par rinçage les débris hors de cette cavité, avec le dispositif de bague de pompe en place. Ce dispositif comprend un corps cylindrique (12) définissant un passage axial (14) qui reçoit l'arbre de pompe ; une pluralité d'encoches obliques orientées dans le sens axial et espacées à la périphérie (16), formées dans une paroi intérieure du passage axial ; et une pluralité d'ouvertures (20) orientées radialement et de biais vers l'intérieur à partir de la périphérie extérieure du corps cylindrique vers le passage axial, la pluralité d'encoches obliques et la pluralité d'ouvertures recevant le liquide de rinçage sous pression.

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