Mann+hummel Gmbh

Thomas Tschech

Michael Fasold

Heinz Fuchs

Sascha Bauer

Thomas Jessberger

Herbert Jainek

Volker Kuemmerling

Lukas Bock

Joerg Menssen

Thomas Schleiden

Michael Harenbrock

Juergen Kosicki

Bernd Tippmer

Klemens Dworatzek

Jochen Linhart

Steffen Schuetz

Bernhard Huurdeman

Armando Labarta

Klaus Arnegger

Frank Skudlarz

Hedwig Schick

Hartmut Chladek

A unit () for the regulation or control of a fluid pressure, having at least one housing section () and a switching film () connected to the at least one housing section () for switching at pressure differentials relative to an ambient pressure acting on the switching film (), and for the regulation, release or blocking of a flow of the fluid between an inlet () and a discharge () for the fluid. The switching film () is made out of a polymer material having fluorine and carbon. In this arrangement, a hole cross-section () of the at least one housing section () is closed off by the switching film (). A method of forming a fluid-tight connection is also disclosed.

Unit for the regulation or control of a fluid pressure

Disclosed is a method and a unit () for the regulation or control of a fluid pressure, having at least one housing section () and a switching film () connected to the at least one housing section () for switching at pressure differentials of 1 to 250 mbar, preferably from 1 to 100 mbar, relative to an ambient pressure acting on the switching film (), and for the regulation, release or blocking of a flow of the fluid between an inlet () and a discharge () for the fluid. The switching film () is made out of a polymer material having fluorine and carbon. In this arrangement, a hole cross-section () of the at least one housing section () is closed off by the switching film ().

A humidifier has a stack unit having a plurality of water-vapor-permeable membranes which are arranged parallel one above the other and spaced apart from one another. The membranes are enclosed at the edges at least in sections by an enclosing part, wherein the enclosing parts of membranes lying one above the other are directly connected to one another in a flow-tight manner.

Humidifier, in particular for a fuel cell

A humidifier has a stack unit having a plurality of water-vapor-permeable membranes which are arranged parallel one above the other and spaced apart from one another. Two adjacent membranes are connected to one another via fixing elements, wherein a first fixing element acts on the top membrane from above and a second fixing element acts on the bottom membrane from below.

Humidifier, for example for a fuel cell

A humidifier is provided with a housing and a stacked unit inserted into the housing that is provided with water vapor-permeable membranes and frame parts, wherein the frame parts are stacked on each other and the water vapor-permeable membranes are arranged between the frame parts, respectively, so that the water vapor-permeable membranes are stacked on top of each other and are spaced apart from each other. The housing has supports that hold the stacked unit. The supports and the frame parts are connected to each other by a connection that is made of laterally projecting connecting tabs and a receiving groove extending in vertical direction, wherein the connecting tabs engage the receiving groove.

A filter element comprising a filter medium which extends through an axial length between an end face at a clean air end and an end face at an unfiltered air end such that the filter medium separates an unfiltered air end of the filter element from a clean air end, in which the filter medium is circumferentially surrounded by a jacket and attached in a sealed manner to the jacket, and in which contours for securing the filter element in a filter housing are arranged on the jacket of the filter element.

Filter element

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Marbach, Germany

Thomas Tschech