EP 1317621 A1 20030611 - HYDRAULICALLY TRANSLATED VALVE
Title (en)
HYDRAULICALLY TRANSLATED VALVE
Title (de)
HYDRAULISCH ÜBERSETZTES VENTIL
Title (fr)
SOUPAPE A TRANSLATION HYDRAULIQUE
Publication
Application
Priority
- DE 0103088 W 20010811
- DE 10043625 A 20000905
Abstract (en)
[origin: WO0220978A1] A valve for control of fluids is disclosed, with at least one actuator unit (4), for operating an axially displaceable valve member (3) in a drilling (10) in a valve body (7), comprising at least one valve closing member (12), arranged in a valve chamber (18) and co-operating with at least one first valve seat (14) and a first piston (9) and a second piston (11). A hydraulic chamber (13) is arranged between the pistons (9, 11), which works as a hydraulic translator, with a filling device for compensating for losses by leakage, comprising a pressure equalisation channel (24) which essentially transfers the pressure in the valve chamber (18) to the hydraulic chamber (13), such that a quasi force-equalised valve is created.
IPC 1-7
IPC 8 full level
F02M 47/02 (2006.01); F02M 51/06 (2006.01); F02M 59/46 (2006.01); F02M 61/04 (2006.01)
CPC (source: EP US)
F02M 47/027 (2013.01 - EP US); F02M 63/0026 (2013.01 - EP US); F02M 63/0036 (2013.01 - EP US); F02M 2200/705 (2013.01 - EP US)
Citation (search report)
See references of WO 0220978A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0220978 A1 20020314; CZ 20021504 A3 20031015; DE 10043625 A1 20020314; DE 10043625 C2 20030327; EP 1317621 A1 20030611; JP 2004508496 A 20040318; US 2003085371 A1 20030508
DOCDB simple family (application)
DE 0103088 W 20010811; CZ 20021504 A 20010811; DE 10043625 A 20000905; EP 01964904 A 20010811; JP 2002525365 A 20010811; US 12943202 A 20020805