公开(公告)号：US11806644B2

公开(公告)日：2023-11-07

申请号：US16496475

申请日：2018-04-04

Applicant: RT-FILTERTECHNIK GMBH

Inventor： Marco Bautz ,  Mathias Dieter

IPC: B01D29/96 ,  B01D29/23 ,  B01D35/147

CPC classification number: B01D29/96 ,  B01D29/23 ,  B01D35/147 ,  B01D2201/295 ,  B01D2201/4053 ,  B01D2201/52

Abstract: A filter device has a housing (3, 5) and a filter element (23) that can be received in the housing in a replaceable manner. The housing and filter element engage with at least two key parts (53, 56, 58) or lock parts. The lock parts (57) or key parts of the housing (3, 5) are associated with each other respectively in pairs in an engaged manner, as a coding and/or setting and/or functional structure and/or reproduction protection.