Firma Carl Freudenberg

Carl Freudenberg Kg

Gerold Winkler

Gerd-Heinz Ticks

Ludwig Schmitt

Stephan Winkler

Marion Winkler

The invention relates to a support bearing () with a damping channel linking a working chamber () and a compensation chamber (), said damping channel being provided with a damping channel orifice () that can be opened and closed with a plug (). Until now, high pressing forces were required to keep the damping channel orifice () closed with the plug () at peak pressures. The object of the invention is to reduce markedly the pressing forces with which the plug () must be pressed against the damping channel orifice () at peak pressures. In the support bearing () of the invention, the plug () can be pressed against the damping channel orifice () from the direction of the working chamber ().

Support bearing

A controllable motor bearing consisting of a journal bearing and a support which are connected parallel to one another by means of a first and a second spring element made of rubber. One of the spring elements can be locked in place by an auxiliary mechanism, if necessary. The first spring element is structured in the form of a ring, and has an inside diameter which is larger than the outside diameter of the second spring element. The first spring element overlaps the second spring element at least partially in the axial direction. The auxiliary mechanism consists of a support element which at least partially surrounds the second spring element at a radial distance. The second spring element has a recess which has an expanse and position in the axial direction which cooperates with the support element. A fluid medium can be fed into the recess. The second spring element can be expanded in the area of the recess, as a function of the pressure of the fluid medium, and can be placed against the support element so as not to move.

Controllable motor bearing

In a variable-resilience engine mount a top member rests on two rubber spring elements which, in turn, rest on a parallel base. An ancillary component deactivates one of the spring elements when necessary. A first, outer spring element extends axially at least part-way up the second, inner spring element. The second spring element has a cavity at its center. A fluid can be injected into the cavity to inflate and expand the second spring element. The cavity will continue to inflate, making the mount less resilient as more fluid is injected, until it is stopped by a reinforcement surrounding it.

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Birkenau, Germany

Gerold Winkler