Otto Egelhof Gmbh & Co. Kg

Otto Egelhof Gmbh & Co. Kg, Regelungstechnik

Uta Andrä

Siegfried Roth

Albrecht Waldenburg

Jean-Jacques Robin

Ralf Winterstein

Klaus Kummerow

The invention relates to an expansion valve, in particular for a vehicle air-conditioning system operated with cooling medium, with a valve seat () and a valve-closing element (), which closes a passage opening () between a cooling medium inlet opening () and a cooling medium outlet opening (), and with an actuating device () which acts on the valve-closing element () and opens and closes the passage opening (), a shortened maximum working lift for opening the valve-closing element () out of the valve seat () being provided, at which a ball seat cross section formed between valve-closing element () and valve seat () is designed to be smaller than an annular gap cross section formed between a transmission pin () of the actuating device () and a passage opening ().

Expansion valve, in particular for a cooling-medium system

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

Growing community of inventors

Lichtenwald, Germany

Uta Andrä