Ring filter element for a liquid filter
First Claim
1. A ring filter element for an oil filter for purifying lubricant oil, for an internal combustion engine of a motor vehicle,having an annularly positioned filter material (2),having at least one end disk (4), which seals the filter material on its end, and which has a journal (5), which is positioned eccentrically in relation to the lengthwise central axis (3) of the ring filter element (1) and projects outward,comprising a discharge channel (6), which penetrates the journal (5) and the associated end disk (4) radially next to the filter material (2),wherein the discharge channel (6) communicates with an inner chamber (7) of the ring filter element (1) encircled by filter material (2),wherein the discharge channel (6) communicates with a clean side of the ring filter element (1), andwherein a throttle (8) is positioned or implemented at or in an outlet end of the discharge channel (6) or upstream from the discharge channel (6).
1 Assignment
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Accused Products
Abstract
A ring filter element is provided for a liquid filter, especially for an oil filter for purifying lubricating oil, especially for an internal combustion engine of a motor vehicle. The ring filter element comprises a filter material which is arranged in an annular manner and at least one end disk comprising an outwardly protruding journal which is eccentrically arranged in relation to the longitudinal central axis of the ring filter element. The functionality of the ring filter element can be improved by providing a discharge channel which radially penetrates the journal and the associated end disk next to the filter material.
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Citations
12 Claims
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1. A ring filter element for an oil filter for purifying lubricant oil, for an internal combustion engine of a motor vehicle,
having an annularly positioned filter material (2), having at least one end disk (4), which seals the filter material on its end, and which has a journal (5), which is positioned eccentrically in relation to the lengthwise central axis (3) of the ring filter element (1) and projects outward, comprising a discharge channel (6), which penetrates the journal (5) and the associated end disk (4) radially next to the filter material (2), wherein the discharge channel (6) communicates with an inner chamber (7) of the ring filter element (1) encircled by filter material (2), wherein the discharge channel (6) communicates with a clean side of the ring filter element (1), and wherein a throttle (8) is positioned or implemented at or in an outlet end of the discharge channel (6) or upstream from the discharge channel (6).
Specification