Otto Egelhof Gmbh & Co. Kg, Regelungstechnik

Otto Egelholf Gmbh & Co. Kg

Ralf Winterstein

Jean-Jacques Robin

Klaus Kummerow

Siegfried Roth

Albrecht Waldenburg

Uta Andrä

Hans Köstler

The invention relates to a method of producing a valve arrangement and to a valve arrangement for an expansion valve, which is provided in a vehicle air conditioning system operated with refrigerant and has a basic opening in the valve seat, the cross section of this basic opening being produced for a predetermined mass flow by material removal.

Method of producing a valve arrangement for an expansion valve

The invention relates to an expansion valve and to a method for controlling an expansion valve, in which the opening and closing movement of the valve-closure member is set as a function of the pressure difference which is present in a feed opening on the high pressure side and in a discharge opening.

Expansion valve and method for controlling it

A circuit for the generation of cold or heat comprising a compressor, an evaporator, a condenser and a restriction member made as a separate component and having a fixed throughflow cross-section, with the restriction member being inserted directly between two elements of the circuit such as a connection tube and a connection stub to reduce the manufacturing costs and the required construction space.

Circuit for the generation of cold or heat

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Dettingen/Erms, Germany

Ralf Winterstein