公开(公告)号：US12128343B2

公开(公告)日：2024-10-29

申请号：US17289765

申请日：2019-10-09

Applicant: HENGST SE

Inventor： Sieghard Pietschner ,  Roland Edlerherr ,  Moritz Dorschel

IPC: B01D46/00 ,  B01D46/24 ,  B01D46/42 ,  B01D46/44 ,  B01D46/58 ,  B01D46/71

CPC classification number: B01D46/0086 ,  B01D46/0049 ,  B01D46/2411 ,  B01D46/429 ,  B01D46/446 ,  B01D46/448 ,  B01D46/58 ,  B01D46/71 ,  B01D2273/30

Abstract: The invention relates to a filter arrangement comprising a filter cartridge, having an opening and a wall which is formed by a filter medium and has an inner side delimiting a clean side of the filter and an outer side delimiting a raw side of the filter, a fan for conveying air to be purified first through the wall and subsequently through the opening of the filter cartridge, and a purification device, which is configured to convey a jet of compressed air through the opening into the filter cartridge and through the wall out of the filter cartridge, for conveying dirt away from an outer wall of the wall. The invention also relates to a method for detecting a leak of a filter cartridge, wherein the filter cartridge has an opening and a wall which is formed by a filter medium and has an inner side delimiting a clean side of the filter and an outer side delimiting a raw side of the filter.