US 12,358,003 B2
Cabin air filter device and components
Stefan Robert, Nordwalde (DE); Andreas Borchard, Coesfeld (DE); and Martin Rölver, Havixbeck (DE)
Assigned to HENGST SE, (DE)
Filed by HENGST SE, Münster (DE)
Filed on Aug. 16, 2024, as Appl. No. 18/807,286.
Application 18/807,286 is a continuation of application No. PCT/EP2023/053664, filed on Feb. 14, 2023.
Claims priority of application No. 22157505 (EP), filed on Feb. 18, 2022; and application No. 22182008 (EP), filed on Jun. 29, 2022.
Prior Publication US 2025/0121380 A1, Apr. 17, 2025
Int. Cl. B03C 3/66 (2006.01); B03C 3/82 (2006.01)
CPC B03C 3/66 (2013.01) [B03C 3/82 (2013.01); B03C 2201/30 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A gas cleaning device comprising:
a filter cartridge with a filter medium and a first filter terminal,
a duct comprising:
a duct wall enclosing a duct volume with an upstream gas inlet and a downstream gas outlet,
a filter support, wherein the filter support removably supports the filter cartridge in the duct volume in between the upstream gas inlet and the downstream gas outlet,
a first duct terminal,
a gas ionizer that includes at least a first ionizer electrode and a second ionizer electrode, a first ionizer terminal and a second ionizer terminal, wherein first ionizer terminal is electrically connected to the first ionizer electrode and the second ionizer terminal is electrically connected to the second ionizer electrode,
wherein:
(i) the filter cartridge has an inserted position and, when the filter cartridge is in the inserted position, the first duct terminal contacts the first filter terminal, and the first ionizer terminal is electrically connected with the first duct terminal via the at least the first filter terminal, and
(ii) the filter cartridge has a non-inserted position and, when the filter cartridge is in the non-inserted position, the first duct terminal does not contact the at least the first filter terminal, and the first ionizer terminal is electrically disconnected from the first duct terminal.