Global Patent Index - EP 1317621 A1

EP 1317621 A1 2003-06-11 - HYDRAULICALLY TRANSLATED VALVE

Title (en)

HYDRAULICALLY TRANSLATED VALVE

Title (de)

HYDRAULISCH ÜBERSETZTES VENTIL

Title (fr)

SOUPAPE A TRANSLATION HYDRAULIQUE

Publication

EP 1317621 A1 (DE)

Application

EP 01964904 A

Priority

  • DE 0103088 W
  • DE 10043625 A

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 (main, further and additional classification)

F02M 59/46; F02M 47/02; F16K 31/02; H01L 41/02

IPC 8 full level (invention and additional information)

F02M 47/02 (2006.01); F02M 51/06 (2006.01); F02M 59/46 (2006.01); F02M 61/04 (2006.01)

CPC (invention and additional information)

F02M 63/0026 (2013.01); F02M 47/027 (2013.01); F02M 63/0036 (2013.01); F02M 2200/705 (2013.01)

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

EPO simple patent family

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

INPADOC legal status


2004-05-12 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20031107

2003-08-13 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20030626

2003-06-11 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20030407

2003-06-11 [AK] DESIGNATED CONTRACTING STATES:

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR