Pressure relief arrangement for a pump

Details Pressure relief arrangement for a pump Pressure relief arrangement for a pump

F - Mech Eng,Light,Heat,Weapons

04

D

F04D 29/08 (2006.01) F04D 27/00 (2006.01)

Patent

CA 2522657

A pressure relief arrangement for a pump (10) which includes a pump housing assembly with a pumping chamber (25) therein, the pump housing assembly including a section (41) mounted for movement between a normal operating position and a venting position, a shearing element (45) being adapted to retain the section in the normal operating position, the section (41) being mounted so that upon the pressure within the pumping chamber (25) can act on the section (41) and upon the pressure within the pumping chamber (25) reaching a specified pressure, the shearing element (45) will fail thereby permitting movement of the section (41) from the normal operating to the venting position.

L'invention concerne un agencement de limitation de pression pour une pompe (10) qui comprend un ensemble logement de pompe dans lequel se situe une chambre (25) de pompe. Cet ensemble logement de pompe comprend une section (41) conçue pour se déplacer d'une position normale de fonctionnement à une position de ventilation, un élément de cisaillement (45) étant conçu pour retenir la section dans la position normale de fonctionnement, la section (41) étant montée de façon qu'une pression appliquée dans la chambre (25) de pompe agisse sur celle-ci, et que, après que ladite pression appliquée dans la chambre (25) de pompe ait atteint une pression spécifiée, ledit élément de cisaillement (45) ne puisse retenir la section (41) et permette à cette dernière de se déplacer de la position normale de fonctionnement à la position de ventilation.

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