MANN+HUMMEL

A stack plate device (400) for a humidifier (1000), in particular for a fuel cell system, comprises stack plates (100) being stacked one on top of each other in a stacking direction (500), adjacent ones of the stack plates (100) being alternately rotated around a central axis (510), with a top side (126) of one stack plate (100) facing a bottom side (125) of an adjacent stack plate (100), each of the stack plates (100) comprising a peripheral frame (120), the peripheral frame (120) enclosing a through-opening (130) and comprising an inflow region (402) and an outflow region (404) opposing the inflow region (402) that are transverse to the stacking direction (500). The peripheral frame (120) of each of the stack plates (100) comprises inner connecting elements (140) and outer connecting elements (150).

Ein Filterelement (1) zum Filtern eines Fluids, insbesondere zum Filtern von Verbrennungsluft in einem Kraftfahrzeug und/oder zum Filtern von Betriebsmitteln eines Kraftfahrzeugs, umfasst ein Faltenpack (2), welches aus einem zickzackförmig gefalteten Filtermedium (9) mit durch Faltkanten (16) begrenzten Faltabschnitten (22) gebildet ist. Mindestens zwei direkt benachbarte Faltabschnitte (22A, 22B) sind entlang einer Klebelinie (21) durch eine Verklebung (23) mit Hilfe eines Klebstoffmaterials (24) miteinander verbunden, wobei die Klebelinie (21) zumindest abschnittsweise schräg zu der zwischen den zwei direkt benachbarten Faltabschnitten (22A, 22B) liegenden Faltkante (16A) verläuft oder entlang der zwischen den zwei direkt benachbarten Faltabschnitten (22A, 22B) liegenden Faltkante (16A) versetzt verläuft.

A sensor unit (20) for an air filter (1) configured to separate, from an air flow (3), at least one harmful gas, in particular for a fuel cell (2), the sensor unit (20) comprising a first sensor (21) and a second sensor (22), each of which comprising two electrodes (27, 28) and a material layer (30) connecting the two electrodes (27, 28), an electrical resistance of the material layer (30) changing when the material layer (30) comes into contact with the harmful gas, and the material layer (30) of the first sensor (21) being different from the material layer (30) of the second sensor (22), and a processing unit (23) configured to determine a time derivative of a change in the electrical resistance of the material layer (30) of at least the first sensor (21), and to generate an output signal (26) based on the determined time derivative.

An adsorber element (10) comprises a multilayered adsorber material (12) through which fluid can flow, the adsorber material (12) comprising a sorbent layer (16) configured to be regenerated using heat. The adsorber element (10) further comprises a heating device (14) positioned adjacent to the adsorber material (12) and configured to generate the heat.

An adsorber device (10) comprises a housing (12) comprising an adsorption channel (18) for guiding an adsorption fluid flow, and a desorption channel (20) for guiding a desorption fluid flow, and an adsorber element (14) being rotatable in relation to the housing (12) and being arranged partly in the adsorption channel (18) and partly in the desorption channel (20). When the adsorber element (14) is rotated, a body of rotation is formed. An inlet portion (22) of the adsorption channel (18) is for directing the adsorption fluid flow into a first circumferential portion (30) of a generated surface of the body of rotation, and an inlet portion (26) of the desorption channel (20) is for directing the desorption fluid flow into a second circumferential portion (32) of the generated surface of the body of rotation.

An ion exchanger filter device (100), in particular for a fuel cell system, the ion exchanger filter device (100) comprising a housing (102) comprising a cover (112) and at least one inflow opening (104) and at least one outflow opening (106) for a medium, the housing (102) extending in an axial direction (80), and an ion exchanger cartridge (10) being enclosed by the housing (102) and comprising one or more inflow ports (34) at an upstream end (20), and a circumferentially extending wall (32) enclosing a receptacle (16) filled with an ion exchanger material (12), the wall (32) comprising one or more outflow ports (18) at a downstream end (21) opposing the upstream end (20). The upstream end (20) comprises a sealing plane (60) providing a sealing contact to the housing (102), the sealing plane (60) being inclined to the axial direction (80) by an angle (70).

An ion exchanger filter device (100), in particular for a fuel cell system, the ion exchanger filter device (100) comprising a housing (102) comprising a cover (112) and at least one inflow opening (104) and at least one outflow opening (106) for a medium, the housing (102) extending in an axial direction (80), and an ion exchanger cartridge (10) being enclosed by the housing (102) and comprising one or more inflow ports (34) at an upstream end (20), and a circumferentially extending wall (32) enclosing a receptacle (16) filled with an ion exchanger material (12), the wall (32) comprising one or more outflow ports (18) at a downstream end (21) opposing the upstream end (20). A main flow path (50) through the ion exchanger cartridge (10) is provided, for the medium, between the one or more inflow ports (34) and the one or more outflow ports (18). The housing (102) further comprises a bypass channel (116) between the inflow opening (104) and the outflow opening (106), for the medium bypassing the ion exchanger cartridge (10). The ion exchanger cartridge (10) further comprises a closure element (40) configured to close the bypass channel (116) when the ion exchanger cartridge (10) is mounted in an intended mounting position to the housing (102).

Die Erfindung betrifft ein Ringfilterelement mit einem Filtermediumkörper in Form eines Faltenbalgs, der radial innen wenigstens eine Faltenaufspreizung aufweist, welche an eine offene Endscheibe angrenzt. Die offene Endscheibe weist wenigstens eine Aussparung auf. Die Aussparung und die Faltenaufspreizung sind in Überdeckung miteinander angeordnet. Am von der offenen Endscheibe abgewandten axialen Ende ist der Filtermediumkörper von einer geschlossen Endscheibe abgedichtet. Beim Gebrauch des Ringfilterelements in einer Filtervorrichtung greift ein Eingriffselement in die Faltenaufspreizung und/oder in die Aussparung ein. Das Eingriffselement kann an einem Filtergehäuse oder einem weiteren Ringfilterelement der Filtervorrichtung ausgebildet sein. Somit ist eine Winkelposition des Ringfilterelements bezüglich des Filtergehäuses bzw. des weiteren Ringfilterelements fixiert.

A filter element (10) comprises a fold pack (2) comprising a flat filter medium (1) folded in a zigzag shape, the fold pack (2) further comprising upstream folds (2A) and downstream folds (2B), a frame element (3A, 3B, 4A, 4B) at least partially enclosing the fold pack (2), the frame element (3A, 3B, 4A, 4B) being attached to lateral fold profiles (5A, 5B) and end fold sections (6A, 6B) of the fold pack (2), a cover element (7) attached to the frame element (3A, 3B, 4A, 4B) thereby forming an interior volume (8) confined by the folded filter medium (1), the frame (3A, 3B, 4A, 4B) and the cover element (7), and a filling (14) comprising particulate adsorber material (9) within the interior volume (8) and covering at least partially a folding edge (15) of the upstream folds (2A) facing the cover element (7).

An adsorber cartridge (24; 72) comprises an annular sleeve comprising an inner wall (28), an outer wall (30), a first end cap (34), and a second end cap (36), the first end cap (34) comprising an opening (52). The adsorber cartridge (24; 72) further comprises adsorbent material (40) contained in the annular sleeve, a movable compression plate (38; 84) arranged within the annular sleeve and between the first end cap (34) and the adsorbent material (40), and at least one actuation element (54; 82) arranged in the opening (52) and configured to bias the movable compression plate (38; 84) against the adsorbent material (40).