Patent · US Active

Method of manufacturing a valve housing

US8464566B2 · kind B2 · utility

1Cited by

7References

15Claims

0Family size

Assignee

BUERKERT WERKE GMBH · DE

Inventors

Walter Neumann · Siegen, DE
Gerhard Koch · Nagold, DE
Robert Pop · Stuttgart, DE
Klaus Beck · Oberkochen, DE
Klaus Siegert

Key dates

Filing date	Jun 9, 2011
Grant date	Jun 18, 2013
Priority date	—
Expiry date	Aug 11, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49805
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A method of manufacturing a metallic valve housing by hydroforming a tube section in a die is provided. The die includes an upper part having a stamp and a lower part having a depression. The tube section is placed in the die, filled with a liquid, and subjected to a high internal pressure. Opposite walls of the tube section in a middle portion between two tube ends is shaped in that one side of the tube section is pressed inwards transversely to the axis of the tube section by the stamp to form a concave curvature, and the opposite wall is pressed into the depression in the lower part to form a flat.

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