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1. (WO2018222804) FILTER ELEMENT WITH TORSION LOCK AND/OR SLIDING PISTON, ASSEMBLY AND METHODS

Pub. No.:    WO/2018/222804    International Application No.:    PCT/US2018/035286
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Fri Jun 01 01:59:59 CEST 2018
IPC: B01D 35/30
B01D 35/00
Applicants: PARKER-HANNIFIN CORPORATION
DOWNS, Kevin
Inventors: DOWNS, Kevin
Title: FILTER ELEMENT WITH TORSION LOCK AND/OR SLIDING PISTON, ASSEMBLY AND METHODS
Abstract:
A filtration assembly is provided that comprises a filter cartridge and a filter head, that has particular application for liquid filtration, such as engine fuel filtration in an embodiment. The filter cartridge can include a thread and a torsion lock detent to provide twist and lock mounting to the filter head. Separately, the filter cartridge can include a slidable piston that can become pressurized by application of liquid pressure during operation that can apply an axial force to the filter head to load the thread and increase threaded attachment rigidity and/or the natural frequency of the filter cartridge to a more desirable level, and thereby limit vibrational impacts.