Title:
CONTROL VALVE WITH A SHORT SWITCHING TIME
Document Type and Number:
WIPO Patent Application WO2004085852
Kind Code:
A3
Abstract:
The invention relates to a control valve (12) comprising a valve housing (13) provided with two inflow openings (6, 7), one outflow opening (8), and an inner chamber (14) that can be filled with a pressurised medium and contains a switching means (20, 32) that can be displaced between at least two switching positions. Said switching means (20, 32) respectively opens one of the inflow openings of the valve housing (13) and closes the other inflow opening in both switching positions. The aim of the invention is to reduce the switching time of one such control valve. To this end, the switching means (20, 32) comprises at least two separate sealing means (17, 18; 24, 25) that are arranged in the valve housing (13), along respectively associated circular arc sections, in such a way that they can pivot approximately coaxially in relation to the inflow openings (6, 7), in order to open and close the same (6, 7).
Inventors:
ERATH ROBERT (DE)
GIERER GEORG (DE)
STARK WALDEMAR (DE)
GIERER GEORG (DE)
STARK WALDEMAR (DE)
Application Number:
PCT/EP2004/002939
Publication Date:
November 11, 2004
Filing Date:
March 20, 2004
Export Citation:
Assignee:
ZAHNRADFABRIK FRIEDRICHSHAFEN (DE)
ERATH ROBERT (DE)
GIERER GEORG (DE)
STARK WALDEMAR (DE)
ERATH ROBERT (DE)
GIERER GEORG (DE)
STARK WALDEMAR (DE)
International Classes:
F15C3/06; F16K31/56; (IPC1-7): F16K11/056
Foreign References:
| EP1045150A2 | 2000-10-18 | |||
| DE19636855C1 | 1998-04-23 | |||
| US20010047828A1 | 2001-12-06 | |||
| US6394136B1 | 2002-05-28 | |||
| US5040567A | 1991-08-20 | |||
| US4765370A | 1988-08-23 | |||
| US6484754B1 | 2002-11-26 | |||
| EP0774605A1 | 1997-05-21 |
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