FILTER WITH IMPROVED FATIGUE PERFORMANCE AND TORQUE TRANSFER

摘要

A fluid filter (10) includes a base plate (14) , a canister (16) , and filtering media (18) contained in. the canister for filtering fluid from an inlet port to an outlet port. Notches (80) are formed into an outer periphery of the base plate. An annular bead (82) 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 (42) of the canister is wrapped around the outer face of the base plate and formed into an annular trough (60) to directly secure the base plate to the canister. The annular trough (60) 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.