US 11,725,614 B2
Filter arrangement
Volker Kuemmerling, Bietigheim-Bissingen (DE); Thomas Jessberger, Asperg (DE); Andreas Weber, Freiberg a. N. (DE); Michael Metzger, Waiblingen (DE); Bernhard Gau, Ludwigsburg (DE); Naihe Shen, Fellbach (DE); Calogero Colletto, Filderstadt (DE); and Achim Janner, Ludwigsburg (DE)
Assigned to MANN+HUMMEL GmbH, Ludwigsburg (DE)
Filed by MANN+HUMMEL GmbH, Ludwigsburg (DE)
Filed on Mar. 17, 2020, as Appl. No. 16/820,863.
Application 16/820,863 is a continuation of application No. 15/597,554, filed on May 17, 2017, granted, now 10,605,210.
Claims priority of application No. 102016006042.5 (DE), filed on May 18, 2016.
Prior Publication US 2020/0284228 A1, Sep. 10, 2020
Int. Cl. F02M 35/02 (2006.01); B01D 46/10 (2006.01); B01D 46/00 (2022.01); B01D 46/52 (2006.01)
CPC F02M 35/0203 (2013.01) [B01D 46/0002 (2013.01); B01D 46/0005 (2013.01); B01D 46/10 (2013.01); B01D 46/521 (2013.01); B01D 2265/026 (2013.01); B01D 2265/027 (2013.01); B01D 2265/028 (2013.01); B01D 2271/027 (2013.01); B01D 2279/60 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A filter housing comprising:
a first housing part;
a second housing part;
wherein the first and second housing parts are configured to close together and separate from each other in an axial mounting direction;
wherein, when the first and second housing parts are closed together, the first and second housing parts enclose an interior chamber configured to accommodate a filter element provided with a sealing element circumferentially extending about the filter element;
the first housing part comprising:
a first rim section comprising:
a radial stay formed on and projecting radially outwardly from an outer wall of the first housing part; and
a first circumferentially extending sealing stay formed on and projecting axially outwardly from the radial stay;
the second housing part comprising:
a second rim section comprising:
a flange formed on and projecting radially outwardly from an outer wall of the second housing part; and
a second circumferentially extending sealing stay formed on and projecting axially outwardly from the flange in a direction towards the radial stay of the first housing part;
wherein, when the first and second housing parts are closed together in a mounted state:
the first circumferentially extending sealing stay projects axially outwardly from the radial stay in a direction towards the flange of the second housing part to contact against the flange of the second housing part; and
the first circumferentially extending sealing stay of the first housing part is spaced radially away from the second circumferentially extending sealing stay of the second housing part, the radial spacing delimiting a receiving area for receiving the sealing element such that the sealing element is seal-tightly clamped in a radial direction against both the first and second circumferentially extending sealing stays;
a snap connecting device configured to axially brace the first and second housing parts relative to each other;
wherein the snap connecting device is formed integrally on the first housing part and on the second housing part such that a contact force or clamping force exerted by the first and second rim sections on the sealing element in the radial direction of the filter housing is decoupled from the snap connecting device;
wherein the snap connecting device includes:
a snap hook arranged on the first housing part, the snap hook is U-shaped and comprises:
a first leg having an end connected to the radial stay and extending axially away from the radial stay towards the second housing part, the first leg spaced apart from the outer wall of the first housing part in the radial direction by the radial stay;
a U-shaped spring section connected to an opposite end of the first leg;
a second leg connected to the first leg by the U-shaped spring section;
a locking nose arranged on and projecting radially outwardly from a radially outer side of the second leg;
a holding section having:
two ribs spaced apart and connected to the outer wall of the second housing part;
a connecting leg bridging between and connected to the two ribs, forming a cutout arranged between the two ribs, the cutout sized to receive and engage the locking nose in the mounted state;
wherein the first leg, the U-shaped spring section and the second leg form an elastic deflectable snap hook in which the locking nose is elastically deflectable in an inwards direction towards the second housing part to engage and disengage the locking nose from the cutout.