Title:
ガス圧を制御するためのバタフライ弁
Document Type and Number:
Japanese Patent JP4286219
Kind Code:
B2
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.
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Inventors:
Dray Silker, Ralph
Petri, Bernhard
Petri, Bernhard
Application Number:
JP2004529941A
Publication Date:
June 24, 2009
Filing Date:
August 14, 2002
Export Citation:
Assignee:
Nord-Micro Actien Gezel Shaft and Company OH G
International Classes:
F16K1/22; B64D13/02
Domestic Patent References:
| JP60167268U | ||||
| JP52055712Y1 | ||||
| JP5508905A | ||||
| JP9210216A | ||||
| JP9060751A |
Foreign References:
| US2058996 |
Attorney, Agent or Firm:
Yukio Ono
Nao Watanabe
Nao Watanabe