Patent · US Expired

Butterfly valve for controlling a gas pressure

US7077383B1 · kind B1 · utility

7Cited by

9References

14Claims

0Family size

Assignee

Nord-Micro GmbH & Co. OHG · DE

Inventors

Ralf Dreisilker · Velbert, DE
Bernhard Petri · Hersbruck, DE

Key dates

Filing date	Aug 14, 2002
Grant date	Jul 18, 2006
Priority date	—
Expiry date	Aug 14, 2022

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16K1/22
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A butterfly valve for controlling a gas pressure, in particular inside a cabin of an aircraft, comprises a valve housing (10) having a longitudinal axis (11), a shaft (20) having a rotation axis (21), and a closure member (30) connected to the shaft (20). The closure member (30) is pivotally mounted in the valve housing (10) for rotation about the rotation axis (21) between an open position and a closed position. Moreover, the closure member (30) consists of a first disk (40) and a complementary second disk (50) which abut against each other. The first disk (40) and the second disk (50) are symmetrically arranged with regard to a symmetric axis (31) extending at a predetermined angle of inclination to the rotation axis (21). Such a butterfly valve ensures a restricted cross-sectional area of the valve housing (10), even if breaking of the closure member (30) occurs.

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