Abstract: A filter unit for a coolant includes a housing, a particle filter arranged in the housing, an ion exchanger arranged in the housing, an inlet, a first outlet, and a main stream duct extending between the inlet and the first outlet, the particle filter being arranged in the main stream duct. The filter unit further includes a side stream duct branching off from the main stream duct and configured to guide part of the coolant from the main stream duct to the ion exchanger, and a second outlet downstream of the ion exchanger and fluidically connected to the inlet.

Abstract: An ion exchanger filter device for a fuel cell system, the ion exchanger filter device including a housing including a cover and at least one inflow opening and at least one outflow opening for a medium, the housing extending in an axial direction, and an ion exchanger cartridge being enclosed by the housing and including one or more inflow ports at an upstream end, and a circumferentially extending wall enclosing a receptacle filled with an ion exchanger material, the wall including one or more outflow ports at a downstream end opposing the upstream end. The upstream end includes a sealing plane to the housing, the sealing plane being inclined to the axial direction by an angle.

Abstract: Ion exchanger filter device for a fuel cell system includes a housing including a cover and at least one inflow opening and at least one outflow opening for a medium, the housing extending in an axial direction, and an ion exchanger cartridge enclosed by the housing and including one or more inflow ports at an upstream end, and a circumferentially extending wall enclosing a receptacle filled with an ion exchanger material, the wall including one or more outflow ports at a downstream end. A main flow path is provided between the one or more inflow ports and the one or more outflow ports. The housing further includes a bypass channel between the inflow opening and the outflow opening for the medium bypassing the ion exchanger cartridge. The ion exchanger cartridge further includes a closure element to close the bypass channel when the ion exchanger cartridge is mounted to the housing.

Abstract: A safety element includes a housing, and a filler material comprising a superadsorber and/or an HCO3? ion exchange material disposed in a first segment of the housing and configured to remove acidic or non-acidic water, the filler material having a volume depending on an interaction with water when exposed to water or not exposed to water.

Abstract: An ion exchanger filter device has a housing with inflow opening and outflow opening for a medium that penetrate a wall of the housing. An ion exchanger cartridge is arranged in the housing. A flow path for the medium extends from inflow opening through the ion exchanger cartridge to outflow opening. The ion exchanger cartridge has a cartridge container with a receptacle that is delimited by a circumferentially extending wall provided with one or more outflow ports distributed circumferentially about the circumferentially extending wall. The receptacle is filled with ion exchanger material. The outflow ports, relative to the outflow opening, are arranged offset in axial direction of the ion exchanger filter device. The flow path has a deflection downstream of the outflow ports. The outflow ports, relative to a direction of gravity in intended mounting position of the ion exchanger filter device, are arranged axially above the outflow opening.