公开(公告)号：US20250121380A1

公开(公告)日：2025-04-17

申请号：US18807286

申请日：2024-08-16

Applicant: HENGST SE

Inventor： Stefan Robert ,  Andreas Borchard ,  Martin Rölver

IPC: B03C3/66 ,  B03C3/82

Abstract: A gas cleaning device including a filter cartridge with a filter medium and a first filter terminal, a duct with a filter support that removably supports the filter cartridge in a volume of the duct in between the gas inlet and the gas outlet of the duct, and a gas ionizer that provides enhanced intrinsic safety against malfunction, ozone release and electric shocks of maintenance personnel. When the filter cartridge is inserted into the filter support, the first duct terminal contacts the first filter terminal and the first ionizer terminal is electrically connected with the first duct terminal via the first filter terminal. If the filter cartridge is removed from the filter support, the electrical connection between the gas ionizer and the duct terminal is interrupted.

公开(公告)号：US20250083155A1

公开(公告)日：2025-03-13

申请号：US18807534

申请日：2024-08-16

Applicant: HENGST SE

Inventor： Stefan Robert ,  Andreas Borchard ,  Martin Rölver ,  Tom Klaver

IPC: B03C3/68 ,  B03C3/38 ,  B03C3/62 ,  B03C3/64 ,  B60H3/00

Abstract: A gas filter that includes a filter medium configured to filter a gas flow propagating from an upstream facing side through the filter medium to a downstream facing side. The filter medium includes a capacitor with a first electrode, a second electrode, and a dielectric medium. The gas filter also includes a first electrical contact and a second electrical contact such that the first electrical contact is electrically connected via a first resistor to a branching point and the second electrical contact is electrically connected via a second resistor the same branching point. Further, the first electrode is preferably electrically connected to such branching point and the second electrode is preferably electrically connected to the second electrical contact.