Filter element and filter assembly including locking mechanism

摘要

A fluid filtering apparatus and method may include keyed components to ensure that a correct filter element is being installed into a filter base. Keyed arrangements may occur between a filter element and a filter housing, a filter and a filter base, and a filter base and a filter housing. A locking arrangement may be provided to prevent undesired loosening of a filter relative to a filter base. The filter base may include a torsion lock insert that engages lock detents of a filter to prevent the undesired loosening. An adaptor may be provided to provide the lock detents that interact with a torsion lock insert.

主权项

1. A filter, comprising:
a cover having a rim region and a hub region, the hub region having an inlet port and an outlet port, the cover including an imperforate annular disc portion, the imperforate annular disc portion extends radially between and connects the rim region to the hub region to prevent fluid flow axially through the disc portion between the hub region and the rim region; a tubular ring of filter media for filtering fluid flow from the inlet port to the outlet port, the tubular ring of filter media extending axially between first and second ends and having an inner diameter and an outer diameter; at least one key provided proximate the rim region; at least one lock detent provided between the rim and the hub region, the at least one lock detent having at least a portion positioned radially between the inner and outer diameters of the tubular ring of filter media, the at least one lock detent extending axially outward from an outer surface of the imperforate annular disc portion of the cover in a direction extending away from the filter media; and the rim region and the hub region extending axially outward away from the tubular ring of filter media further than the at least one lock detent.