Filter device with releasably securable end cap and sealing arrangement

US9314720B2 · kind B2 · utility

Assignee

• HYDAC FILTERTECHNIK GMBH · DE

Inventors

• Richard Eberle · Sankt Ingbert, DE
• Micha Kreibig · Beckingen, DE

Key dates

• Filing date: Mar 2, 2011
• Grant date: Apr 19, 2016
• Expiry date: May 8, 2031

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D2201/4084
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A filter device for fluids, especially for fuels such as diesel fuel, includes a filter housing (1) defining a longitudinal axis (19). The filter housing has a fluid inlet (14) and a fluid outlet (24) and can accommodate at least one filter element (9). The fluid can, during filtering, flow through a filter medium (11) surrounding an inner filter cavity. The filter element (9) is enclosed by an end cap (21) on its lower end facing the bottom part (5) of the filter housing (1). The end cap has a passage (29) forming a fluid connection to the inner filter cavity (17) and can be fixed to an element retainer (23) of the filter housing (1). The element retainer (23) includes retaining piece (35) on the bottom part (5) of the filter housing (1). The retaining piece is open towards the filter element (9) with a fluid channel (37) leading to a housing connection (24) running into it. The end cap (21) of the filter element (9) has a connecting piece (27) accommodated in the retaining piece (35) and secured in a supporting zone. The retaining piece (35) forms an opening (43) forming a fluid connection to the fluid channel (37) leading to the element retainer (23) and including a sealing arra…