Alfred Teves Gmbh

Continental Teves, Ag and Company Ohg

Itt Automotive Europe Gmbh

Willi Hartmann

Kurt Saalbach

Klaus Bergelin

Johann Ludwig

Peter Low

The present invention relates to a load-responsive brake force regulator which, for the installation into the vehicle, has a clearance compensation element in the shape of an elastomeric element that automatically moves the actuating lever into the required stop position. After the installation of the brake force regulator into the vehicle, a fixing device is fixed on the pin by means of a screw so that a defined distance is adjusted between the housing of the brake force regulator and the end of a load-responsively acting tension spring. The rubber band is redundant after the fixation. In contrast to the state of the art which proposes the provision of a clearance compensation spring on the lever-side end of the pin and, after fixation, the dissection of the pin at its redundant end by way of a nominal breaking point, the present invention prevents damage to the pin due to transport or improper handling because no nominal breaking point is required.

Load-dependent brake-power regulator

Piston with piston rod being latchable through a retaining member

An arrangement and process for adjusting a supply valve closing in a tandem piston master cylinder is disclosed. The tandem piston master cylinder includes a piston stroked by engagement with an operating rod and a spaced floating piston driven by an interposed return spring, the floating piston captured by the rod engaged piston during the return stroke by a headed screw abutting a projection at the end of a bore within the screw head moves during relative movement between the pistons. Supply valves are opened and closed by the position of each piston. The piston relative positions are adjusted to achieve proper supply valve closing by rotation of the rod engaged piston while fixing the floating piston against rotation which rotates the screw thread which also slightly varies the precompression of the return spring. This adjustment selectively controls the point of closing of the supply valve associated with the floating piston relative the position of the rod operated piston. Pressurized air is used to detect supply valve opening and closing during the adjustment process.

Valve adjustment arrangement and process for a tandem piston master

A pressure cylinder is disclosed having at least one master cylinder piston, provided with a compensating bore which is in connection with opposite sides of the piston and which is closable by a valve piston movable relative to the master cylinder piston. The valve piston is fastened at the end of an extensible central tension element which projects into the pressure chamber of the pressure cylinder and secures through two spring retainers a piston return spring at the master cylinder piston. In order to reduce the idle travel of the master cylinder, the distance between a stop and an abutment face on a flange of the cylinder is first determined and then added to a predetermined functional distance desired to be maintained between the abutment face and a pressure surface on an actuating piston, so that an assembled dimension is determined. The extensible element is adjusted during assembly to position the pressure surface spaced from the stop equal to the assembled dimension.

Pressure cylinder and method of adjusting idle travel

Growing community of inventors

Riedstadt, Germany

Willi Hartmann