US 12,263,439 B2
Filter body, filter element, and filter assembly
Stefan Diersch, Trebgast (DE)
Assigned to MANN+HUMMEL GmbH, Ludwigsburg (DE)
Filed by MANN+HUMMEL GmbH, Ludwigsburg (DE)
Filed on May 17, 2021, as Appl. No. 17/321,969.
Application 17/321,969 is a continuation of application No. PCT/EP2019/077591, filed on Oct. 11, 2019.
Claims priority of application No. 10 2018 128 963.4 (DE), filed on Nov. 19, 2018.
Prior Publication US 2021/0268427 A1, Sep. 2, 2021
Int. Cl. B01D 53/04 (2006.01); B01D 53/30 (2006.01); B32B 1/08 (2006.01); B32B 5/26 (2006.01); B32B 29/00 (2006.01); H01M 8/04089 (2016.01)
CPC B01D 53/0454 (2013.01) [B01D 53/0431 (2013.01); B01D 53/30 (2013.01); B32B 1/08 (2013.01); B32B 5/26 (2013.01); B32B 29/005 (2013.01); H01M 8/04089 (2013.01); B01D 2253/102 (2013.01); B01D 2253/25 (2013.01); B01D 2257/302 (2013.01); B01D 2257/304 (2013.01); B01D 2257/404 (2013.01); B01D 2257/406 (2013.01); B01D 2257/708 (2013.01); B32B 2597/00 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A filter assembly comprising:
a filter receptacle;
a filter element received in the filter receptacle, wherein the filter element comprises
a filter body, wherein the filter body comprises:
a filter medium comprising filter layers arranged one over the other,
wherein the filter layers each comprise at least one active material,
wherein the at least one active material is the same in all of the filter layers,
wherein the filter layers are configured to be flowed through serially in a through-flow direction of the filter body;
sensor devices, each sensor device arranged between two of the filter layers neighboring each other, respectively, so that the sensor devices, in the through-flow direction of the filter body, are arranged one after another in order to determine a sorption capacity of the at least one active material of each filter layer over a service life of the filter body,
wherein the sensor devices are attached to the filter receptacle,
wherein the sensor devices are configured to penetrate into the filter body upon introduction of the filter element into the filter receptacle and are configured to be pulled out of the filter body upon removal of the filter element from the filter receptacle.