Patent · US Active

Method of producing a valve arrangement for an expansion valve

US7849600B2 · kind B2 · utility

0Cited by

4References

17Claims

0Family size

Assignee

Otto Egelhof GmbH & Co. KG, Regelungstechnik · DE

Inventors

Uta Andra · Lichtenwald, DE
Siegfried Roth · Markdorf, DE
Albrecht Waldenburg · Stuttgart, DE
Jean-Jacques Robin · Clapiers, FR
Ralf Winterstein · Neuffen, DE
Klaus Kummerow · Fellbach, DE

Key dates

Filing date	Mar 3, 2005
Grant date	Dec 14, 2010
Priority date	—
Expiry date	Nov 4, 2028

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T408/5587
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.