Mann+hummel Gmbh

Michael Wank

Michael Fasold

Klaus Gehwolf

Gelase Mbadinga Mouanda

Josef Rohrmeier

Heinz Dobusch

Michael Maier

Marcel Mayer

Gerhard Weindl

Tobias Tandetzki

A device for producing a bellows from a filter medium, including: an embossing device embossing fold lines into a filter medium that runs through the embossing device, producing an embossed filter medium for folding into a folded filter medium; the folded section of the filter medium being delimited by two adjacent fold lines; an adhesive application device applying adhesive onto the embossed filter medium; and a folding device folding, in a zig-zag manner, the embossed filter medium onto which the adhesive was applied into the folded filter medium; wherein the folding device includes a plurality of adjacent supporting elements that can be moved into or out of a folding space of the folding device; wherein the supporting elements are movable into the folding space such, that at least one folded section of the folded filter medium is contacted and supported by a respective one of the plurality of supporting element.

Apparatus and method for producing a bellows

A humidification device is provided with at least one stacked unit with water vapor-permeable membranes arranged parallel and spaced apart relative to each other. The membranes each have an edge area framed by frames. The frames are formed by a film composite of a lower film and an upper film, wherein the lower and upper films of the film composite clamp the edge area of one or more of the membranes therebetween. The lower and upper films of the film composite are fixedly connected to each other. Alternatively, the frames are formed by a thermoplastic yarn that is sewn into the edge area of one or more of the membranes, respectively, wherein the thermoplastic yarn is reshaped by heat and pressure.

Humidification device, in particular for a fuel cell

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Coburg, Germany

Michael Wank