US 11,938,435 B2
Round filter element, in particular for gas filtration
Pascal Neef, Trossingen (DE); and Irmgard Thalmann, Waiblingen (DE)
Assigned to MANN+HUMMEL GmbH, Ludwigsburg (DE)
Filed by MANN+HUMMEL GmbH, Ludwigsburg (DE)
Filed on Oct. 27, 2020, as Appl. No. 17/081,075.
Application 17/081,075 is a continuation of application No. PCT/EP2019/060565, filed on Apr. 25, 2019.
Claims priority of application No. 10 2018 110 192.9 (DE), filed on Apr. 27, 2018.
Prior Publication US 2021/0039031 A1, Feb. 11, 2021
Int. Cl. B01D 46/16 (2006.01); B01D 46/24 (2006.01); B01D 46/52 (2006.01); B01D 46/62 (2022.01)
CPC B01D 46/2414 (2013.01) [B01D 46/16 (2013.01); B01D 46/521 (2013.01); B01D 46/62 (2022.01); B01D 2265/021 (2013.01); B01D 2267/40 (2013.01); B01D 2271/02 (2013.01); B01D 2275/208 (2013.01); B01D 2279/60 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A round filter element comprising:
a filter medium body configured to be flowed through by a fluid to be purified in a radial direction in relation to a longitudinal axis of the filter medium body, wherein the filter medium body radially surrounds the longitudinal axis which extends axially through oppositely positioned first and second axial end faces of filter medium body;
wherein an inwardly positioned flow space is arranged on the longitudinal axis and is radially surrounded and enclosed by the filter medium body,
wherein axial, as used herein, is a direction of the longitudinal axis, and
wherein radial, as used herein, is a direction transverse to the longitudinal axis;
an end disk arranged at and closing off the first axial end face of the filter medium body, the end disk having a two-part configuration comprising:
a shaped body extending radially across and axially delimiting the inwardly positioned flow space at the first axial end face, the spaced body including:
a receiving depression formed into to the shaped body and opening only to an axial outer side of the shaped body, the receiving depression closed flow-tight relative to the inwardly positioned flow space; and
a sealing disk of a sealing material arranged directly on the axial outer side of the shaped body, the sealing disk covering the shaped body and closing off the first axial end face of the filter medium body;
wherein the sealing disk is made of a different material than the shaped body;
wherein the sealing disk comprises
a first receiving opening extending axially through the sealing disk and opening into the receiving depression of the shaped body;
wherein the receiving depression of the shaped body and the first receiving opening of the sealing disk are configured to receive a support element.