Invention Grant
- Patent Title: Replaceable liquid filter
- Patent Title (中): 可更换液体过滤器
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Application No.: US11300296Application Date: 2005-12-15
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Publication No.: US07553409B2Publication Date: 2009-06-30
- Inventor: Helmut Luka , Markus Kolczyk , Dieter Schreckenberger , Rainer Loos
- Applicant: Helmut Luka , Markus Kolczyk , Dieter Schreckenberger , Rainer Loos
- Applicant Address: DE Ludwigsburg
- Assignee: Mann & Hummel GmbH
- Current Assignee: Mann & Hummel GmbH
- Current Assignee Address: DE Ludwigsburg
- Agency: Crowell & Moring LLP
- Priority: DE102004061109 20041216
- Main IPC: B01D27/10
- IPC: B01D27/10

Abstract:
A replaceable liquid filter, particularly for the lubricating oil of an internal combustion engine, including a substantially cup-shaped housing with a concentrically arranged outlet opening for filtered liquid and at least one inlet opening for the liquid to be filtered, and a filter element disposed in a sealing manner in the housing between the inlet opening and the outlet opening. The housing is connected to a top plate, and the top plate is connected to an end plate. The top plate encloses a displacement space which is disposed in an inlet chamber in the mating part, such that the inlet opening in the top plate is disposed in the region of the displacement space and/or a backflow check valve is disposed in the area of the outlet opening such that the backflow check valve is positioned axially outside the effective filter element surface.
Public/Granted literature
- US20060157394A1 Replaceable liquid filter Public/Granted day:2006-07-20
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