Firma Carl Freudenberg

Other

Carl Freudenberg Kg

Gerhard Rohner

Klaus Kurr

Werner Idigkeit

Eberhard Bock

Willi Schweikert

Gerd-Heinz Ticks

Volker Daume

Uwe Meinig

Rainer Franz

Hans-Juergen Diekmann

Jens Plechinger

Reinhard Tinz

Manfred Busch

Jorg Bittner

Heinz Keller

Hartmut Loschmann

A measuring device including a Hall sensor arranged in a centrally and axially movable manner in a magnetic tube. Each half of the magnetic tube includes a north and south pole that are diametrically opposed, wherein the north pole on the first half of the tube is also diametrically opposed to the north pole on the second half of the tube, and the south pole formed on the first half of the tube is also diametrically opposed to the south pole on the second half of the tube.

Measurement device including a hall sensor disposed in a magnetic tube

Device to detect leaks and fatigue in membranes wherein the membrane consists of at least two membrane layers, and wherein at least one of the membrane layers includes a conductor on its inner surface that causes an alteration to a measured value in case of an alteration to either the membrane or the conductor.

Device for detecting membrane leaks in a diaphragm pump

A two-chamber engine mount has a working space and a compensation space which are filled with liquid and connected by a choke aperture having the shape of a canal. The inlet and outlet openings of the choke canal are rigidly related to the choke canal and define its beginning and end. At a distance from the inlet opening of the choke canal, at least one transverse passage opening is provided parallel to the outlet opening. The transverse passage can be shut off by a valve which can be actuated by a signal.

Two chamber engine mount

A two-chamber engine mount with hydraulic damping has a partition arranged between a working space and an equalization space. The partition is formed in a first subarea by a disc movable between stops. The play of the disc between the stops can be varied by a motor. In a second subarea, the partition is penetrated by a first choke canal. A second choke canal can be added to the first choke canal in series or parallel therewith by a motor.

Two-chamber engine mount having variable disc stops and variable choke

An air spring has a variable interior space at a gas pressure for spring action between relatively-vibrating bodies. A control device has a sensor electrically responsive to the gas pressure for electrically operating an intake valve for admitting gas to the interior space and an outlet valve for venting gas from the interior space to atmosphere. This damps or isolates vibrations in the air spring in dependence on the control device. The control device may also respond to auxiliary transducers for the gas pressure, spring height, and level, speed, steering, braking, or acceleration of a vehicle on which the air spring is used, for example.

Air spring

Growing community of inventors

Hemsbach, Germany

Gerhard Rohner