Ebm-papst St. Georgen Gmbh & Co Kg

Gerhard Kuhnert

Wolfgang Laufer

Hassan Ghodsi-Khameneh

Daniel Hauer

Markus Braxmaier

Juergen Herr

Mario Staiger

Marc Jeuck

Andreas Kienzler

Jochen Wernet

Andreas Kuhlmey

The invention relates to a pump device for pumping a liquid, comprising a hydraulics housing (), in which a pump ring (), a pump ring support () and an eccentric (), which can be driven by a shaft (), are accommodated. The hydraulics housing () has an annular portion () and a first and a second lateral section (), the two lateral sections () being arranged opposite each other. The pump ring () is mounted between the two lateral sections () of the hydraulics housing () at least in some portions. On a side facing away from the pump ring support (), two first projections (), which run in the axial direction of the shaft (), are each in contact with one of the two lateral sections ().

Pump device with deformable pump ring

The invention relates to a pump device for pumping a liquid having a hydraulics housing (), in which a pump ring (), a pump ring support (), and an eccentric () are accommodated, which eccentric is to be driven by a shaft (), which defines an axial and a radial direction, wherein the pump ring () has a first axial side () and a second axial side (), wherein the hydraulics housing () comprises an annular portion () and a first and a second lateral section (), wherein the two lateral sections () are arranged opposite each other, wherein the pump ring () is arranged, at least in some portions, between the two lateral sections () of the hydraulics housing (), and wherein on the first axial side () and the second axial side (), the profile of the pump ring () in each case follows a contour with an S-formed curve () with a convex section () and a concave section (), wherein the convex section () lies further outwards in a radial direction of the shaft () in comparison with the concave section ().

A device for ventilating a vehicle seat having a cushion () which is resilient with respect to user contact and which is constructed to form a seat and/or back contact face () and which has an air flow channel () which forms an air outlet () in the direction toward the seat or back contact face, an air-permeable covering unit () which is formed in order to at least partially cover the air outlet and which is preferably constructed so as to be rigid and/or grid-like, and a ventilator rotor () which is associated with the air flow channel and which is driven in an electro-motive manner and a ventilator unit () which has a ventilator housing () which at least partially radially surrounds the ventilator rotor, characterized in that the covering unit and the ventilator unit are fixed on or in the cushion with spacing from each other along the air flow channel and without direct connection of portions of the covering unit and the ventilator unit, and the ventilator housing has at the peripheral and/or outer side first fixing means () which are constructed in order to secure the ventilator unit in the air flow channel by engaging in and/or in order to cooperate with second fixing means () which are provided on or in an inner wall portion of the air flow channel.

Device for ventilating a vehicle seat and use of said device for a passenger vehicle seat

A blower arrangement having n fans, where n&#x3e;1, has a housing arrangement for receiving said fans (). The housing arrangement features

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VS-Villingen, Germany

Gerhard Kuhnert