Water separating screen for a filter element in a liquid filter
AssigneeMann+Hummel GmbH
InventorsAndrés Moreno Linares, Sebastian Neubauer, Helen Neubauer
Life of this patent
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Abstract
A water separating screen for a filter element in a liquid filter, the water separating screen including: a screen fabric having end faces; and a fabric carrier; a screen fabric arranged on the fabric carrier and encircling a longitudinal axis, the screen fabric having axial end faces, the longitudinal axis defining an axial direction; wherein the fabric carrier in an area between the end faces exclusively has longitudinal struts, which at least substantially extend in the direction of the longitudinal axis and which are elastic in a radial direction.
Claims8
A water separating screen for a filter element in a liquid filter, the water separating screen comprising:
- a fabric carrier comprised of longitudinal struts arranged circumferentially spaced apart about a longitudinal axis defining a longitudinal direction;
- wherein the fabric carrier has:
- a first carrier ring arranged at and connected to a first axial end of the longitudinal struts;
- and
- a second carrier ring arranged at and connected to an opposite second axial end of the longitudinal struts;
- wherein the first carrier ring and the second carrier ring are each arranged at respective axial end faces of the water separating screen;
- wherein the longitudinal struts, the first carrier ring and the second carrier ring are integrally formed together;
- wherein the longitudinal struts extend axially between the first carrier ring and the second carrier ring and are connected to the first carrier ring and the second carrier ring at the first axial end and at the opposite second axial end of the longitudinal struts, respectively;
- wherein between the first carrier ring and the second carrier ring, the fabric carrier does not have cross struts connecting two or more of the longitudinal struts so that the longitudinal struts are free to deflect radially inwardly against a fluid pressure;
- a screen fabric which is tubular and circumferentially surrounds the longitudinal struts of the fabric carrier, the screen fabric having:
- a first axial end having a first axial end face, the first axial end face held onto the first carrier ring;
- and
- an opposite second axial end having a second axial end face, the second axial end face held onto the second carrier ring;
- wherein the screen fabric is held only to the first carrier ring and the second carrier rings, the screen fabric is arranged radially outwardly surrounding and is not held onto the longitudinal struts such that the longitudinal struts are able to deflect radially inwardly relative to the screen fabric and the screen fabric is free to slide across the longitudinal struts when the longitudinal struts deflect radially inwardly due to the fluid pressure.
Dependencies are inferred from the claim text.