US 12,377,370 B2
Filter device for filtering a fluid
Markus Lang, Loechgau (DE); Stefan Moedinger, Remseck a.N. (DE); and Ralf Zink, Stuttgart (DE)
Assigned to Mahle International GmbH, (DE)
Filed by Mahle International GmbH, Stuttgart (DE)
Filed on Sep. 14, 2022, as Appl. No. 17/945,074.
Claims priority of application No. 102021210213.1 (DE), filed on Sep. 15, 2021.
Prior Publication US 2023/0084595 A1, Mar. 16, 2023
Int. Cl. B01D 29/07 (2006.01); B01D 29/52 (2006.01); B01D 29/56 (2006.01); B01D 35/147 (2006.01); B01D 35/30 (2006.01)
CPC B01D 29/07 (2013.01) [B01D 29/52 (2013.01); B01D 29/56 (2013.01); B01D 35/147 (2013.01); B01D 35/30 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A filter device for filtering a fluid, comprising:
a flat filter element extending flat in a longitudinal direction and a transverse direction running transversely to the longitudinal direction, the filter element including at least one pleated filter medium through which a flow path of the fluid leads in a height direction running transversely to the longitudinal direction and transversely to the transverse direction;
wherein the at least one filter medium, in the height direction, includes a top side and a bottom side facing away from the top side;
at least one strainer arranged on the top side, the at least one strainer extends flat parallel to the filter medium and includes a strainer material having multiple passages opened in the height direction such that the flow path leads through the strainer in the height direction;
wherein the filter device includes at least one bypass spaced apart from the at least one filter medium in the longitudinal direction and through which the flow path leads in the height direction;
wherein the flat filter element includes a frame that receives the at least one filter medium; and
the at least one bypass is formed in the frame.