Daimler-benz Ag

Walter Alfmeier Gmbh & Co.

Bornemann & Haller Kg

Ruediger Hoffmann

Dieter Feichtiger

Klaus-J Heimbrodt

Josef Schumacher

Rudi Kneib

Paul Schwerdt

Theodor Reinhard

Gunther Weikert

Wolfgang Schneider

Dieter Simon

Peter H Haller

In a vacuum distributor box with a suction connection and several vacuum connections, all the vacuum connections are equipped with non-return valves open only when vacuum lines are inserted, both the seals of the box housing itself and the those of the vacuum lines relative to the box housing and the valve sealing seats of the non-return valves being incorporated in a diaphragm seal clamped on all sides between two housing parts.

Vacuum distributor box

A compact electric adjusting drive for locking systems, fan flaps or the like in motor vehicles includes a fluidic force transmission system between the electric motor and the adjusting element movable to and fro between two end positions.

Adjusting drive

A valve arrangement with a main shifting valve and a pilot control valve in which the main shifting valve controls the connection between an inlet line and an outlet line. Depending on the position of the pilot control valve, a control pressure space is connected with the inlet line and is therewith acted upon with the inlet pressure, respectively, is relieved of the pressure by a connection with an essentially pressureless return line in order to close, respectively, open the main shifting valve. As the inlet, outlet and return lines terminate on the same bottom side of the socket, the valve arrangement can be arranged in a particularly simple manner on a line plate of a hydraulic, respectively, pneumatic shifting arrangement.

Valve arrangement with main shifting valve and pilot control valve

Growing community of inventors

Sindelfingen, Germany

Ruediger Hoffmann