US 12,467,537 B2
Sealing element, annular filter element, oil separator, and method for controlling prevailing pressure in crankcase ventilation system
Markus Zuerker, Dudenhofen (DE); Markus Melde, Speyer (DE); and Philipp Ehrhardt, Karlsdorf-Neuthard (DE)
Assigned to MANN+HUMMEL GmbH, Ludwigsburg (DE)
Filed by MANN+HUMMEL GmbH, Ludwigsburg (DE)
Filed on Oct. 19, 2023, as Appl. No. 18/490,408.
Application 16/278,129 is a division of application No. 15/169,848, filed on Jun. 1, 2016, granted, now 10,221,736, issued on Mar. 5, 2019.
Application 18/490,408 is a continuation of application No. 17/121,339, filed on Dec. 14, 2020, granted, now 11,892,078.
Application 17/121,339 is a continuation of application No. 16/278,129, filed on Feb. 17, 2019, granted, now 10,865,672, issued on Dec. 15, 2020.
Application 17/121,339 is a continuation of application No. 15/169,932, filed on Jun. 1, 2016, granted, now 10,876,631, issued on Dec. 29, 2020.
Claims priority of application No. 102015006767.2 (DE), filed on Jun. 1, 2015; and application No. 102015006768.0 (DE), filed on Jun. 1, 2015.
Prior Publication US 2024/0084896 A1, Mar. 14, 2024
Int. Cl. F16J 15/02 (2006.01); B01D 46/00 (2022.01); B01D 46/24 (2006.01); B01D 46/42 (2006.01); F01M 13/04 (2006.01)
CPC F16J 15/022 (2013.01) [B01D 46/0004 (2013.01); B01D 46/2411 (2013.01); B01D 46/4227 (2013.01); F01M 13/04 (2013.01); B01D 2265/027 (2013.01); B01D 2271/022 (2013.01); B01D 2271/027 (2013.01); F01M 2013/0438 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A filter element for an oil separator of a crankcase ventilation system, the filter element comprising:
at least one filter medium surrounding a central axis, the at least one filter medium configured to separate oil from aerosol, the at least one filter medium having an axial end surface forming a covering surface extending in a radial direction relative to the central axis;
a cover element formed as an annular end plate, fixed onto and fully covering the covering surface of the at least one filter medium, the cover element including:
a clean fluid discharge opening configured to remove cleaned fluid from an interior of the at least one filter medium;
wherein the cover element has a valve seat having an annular sealing surface surrounding the clean fluid discharge opening, the annular sealing surface configured for a pressure control valve body of the crankcase ventilation system to close against.