EP 0532603 B1 19971119 - A FLUID VALVE DEVICE AND A POSITIVE-DISPLACEMENT PUMP
Title (en)
A FLUID VALVE DEVICE AND A POSITIVE-DISPLACEMENT PUMP
Title (de)
EINE VENTILVORRICHTUNG FÜR FLÜSSIGKEITEN UND EINE VERDRÄNGERPUMPE
Title (fr)
DISPOSITIF A SOUPAPE HYDRAULIQUE ET POMPE VOLUMETRIQUE
Publication
Application
Priority
- SE 9100408 W 19910607
- SE 9002044 A 19900607
Abstract (en)
[origin: WO9119096A1] A fluid valve device for on-off control of fluid flow through a passage extending between two fluid ports (12, 15) and including a valve seat (17A) comprises a hollow valve member (21) which is movable into and out of sealing engagement with the valve seat and defines a valve chamber (20). The valve chamber (20) communicates with one of the fluid ports (15) through the valve seat (17A) and is associated with a valve member actuating device (A) which translates the pressure of the fluid received in the valve chamber (20) from an inlet (12/14) for the fluid flow into a force acting on the valve member to displace it relative to the valve seat (17A). The valve member actuating device in one embodiment includes a thrust surface (A) on the valve member (21) which is directed away from the valve seat and forms part of the wall of the valve chamber (20). A second thrust surface (C) on the valve member (21) is directed oppositely and defines a chamber (V) which is isolated from the valve chamber and the flow passage. A positive-displacement pump includes the fluid valve device as an inlet valve for controlling the admission into the pump chamber (20) of the fluid being pumped.
IPC 1-7
IPC 8 full level
F04B 43/02 (2006.01); F16K 7/07 (2006.01); F16K 7/16 (2006.01)
CPC (source: EP US)
F04B 43/02 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI NL SE
DOCDB simple family (publication)
WO 9119096 A1 19911212; AT E160427 T1 19971215; AU 660619 B2 19950706; AU 8082491 A 19911231; BR 9106534 A 19930525; CA 2084681 A1 19911208; DE 69128246 D1 19980102; DE 69128246 T2 19980610; DK 0532603 T3 19980727; EP 0532603 A1 19930324; EP 0532603 B1 19971119; ES 2111568 T3 19980316; JP H05507777 A 19931104; PL 167313 B1 19950831; PL 293485 A1 19920907; RU 2100648 C1 19971227; SE 9002044 D0 19900607; SE 9002044 L 19920107
DOCDB simple family (application)
SE 9100408 W 19910607; AT 91910900 T 19910607; AU 8082491 A 19910607; BR 9106534 A 19910607; CA 2084681 A 19910607; DE 69128246 T 19910607; DK 91910900 T 19910607; EP 91910900 A 19910607; ES 91910900 T 19910607; JP 51079291 A 19910607; PL 29348591 A 19910607; RU 92016582 A 19921204; SE 9002044 A 19900607