Title:
ANNULAR VALVE
Document Type and Number:
WIPO Patent Application WO/2013/118182
Kind Code:
A1
Abstract:
An annular valve (1) has an annular valve member (4) and inner and outer annular valve seats (12, 14). Inner and outer sealing ridges (8, 10) are formed either on the annular valve member or on the valve seats. The inner sealing ridges are more resistant to plastic deformation than the outer sealing ridges. They may be thicker, or made from a harder material. Thus, the annular valve better resists damage arising from greater plastic deformation of the inner sealing ridge than the outer sealing ridge due to greater forces (Fi, Fo) acting on the inner sealing ridge than the outer sealing ridge in use.
Inventors:
RAMPEN WILLIAM (GB)
STEIN UWE (GB)
STEIN UWE (GB)
Application Number:
PCT/JP2012/000867
Publication Date:
August 15, 2013
Filing Date:
February 09, 2012
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD (JP)
RAMPEN WILLIAM (GB)
STEIN UWE (GB)
RAMPEN WILLIAM (GB)
STEIN UWE (GB)
International Classes:
F16K1/44; F16J15/06; F16K25/00
Foreign References:
| DE102006006883A1 | 2007-08-23 | |||
| AT509878A4 | 2011-12-15 | |||
| DE10353011A1 | 2005-06-16 | |||
| DE10360253A1 | 2005-07-21 | |||
| DE810827C | 1951-08-13 | |||
| US3594824A | 1971-07-27 | |||
| EP0361927A1 | 1990-04-04 | |||
| EP0494236A1 | 1992-07-15 |
Other References:
YOUNG, W. C.; ROARK, R. J.; BUDYNAS, R. G.: "Stress and Strain", 2002, MCGRAW-HILL
Attorney, Agent or Firm:
TAKAHASHI, MATSUMOTO & PARTNERS INTELLECTUAL PROPERTY CORP. (Ambassador Roppongi Buildings 16-13, Roppongi 3-chome, Minato-k, Tokyo 32, JP)
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Claims:
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