Filter with improved fatigue performance and torque transfer

Details Filter with improved fatigue performance and torque transfer Filter with improved fatigue performance and torque transfer

B - Operations, Transporting

01

D

B01D 27/08 (2006.01)

Patent

CA 2573571

A fluid filter includes a base plate, a canister, and filtering media contained in the canister for filtering fluid from an inlet port to an outlet port. Notches are formed into an outer periphery of the base plate. An annular bead of the canister side wall is partially formed into the notches to provide a torque locking mechanism between the base plate and the canister. The terminating lip portion of the canister is wrapped around the outer face of the base plate and formed into an annular trough to directly secure the base plate to the canister. The annular trough includes a diverging outer wall that provides a narrow contact interface between the terminating lip portion and the retention corner of the base plate to thereby reduce moment loads induced therebetween as a result of high fluid pressures in the filter.

L'invention concerne un filtre de fluide comprenant une plaque de base, une boîte et un milieu filtrant renfermé dans la boîte, aux fins de filtration d'un fluide d'un orifice d'admission à un orifice d'évacuation. Des encoches sont formées dans une périphérie externe de la plaque de base. Une bille annulaire de la paroi latérale de la boîte est partiellement formée dans les encoches, de manière à mettre en place un mécanisme de verrouillage de couple entre la plaque de base et la boîte. La partie de bord terminal de la boîte est enveloppée autour de la surface externe de la plaque de base et formée en un creux annulaire, de manière à fixer directement la plaque de base sur la boîte. Le creux annulaire comprend une paroi externe divergeante mettant en place une interface de contact étroit entre la partie de bord terminal et le coin de retenue de la plaque de base, de manière à réduire ainsi des charges momentanées induites entre ceux-ci en raison de pressions élevées du fluide dans le filtre.

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