EP 1710445 A3 20090812 - Hydraulic control system
Title (en)
Hydraulic control system
Title (de)
Hydraulische Steuerung
Title (fr)
Dispositif de contrôle hydraulique
Publication
Application
Priority
DE 102004063044 A 20041222
Abstract (en)
[origin: US2006156914A1] The invention concerns a hydraulic control ( 1 ) with a supply connection arrangement ( 7 ) having a high-pressure connection (P) and a low-pressure connection (T), a working connection arrangement having two working connections (A, B) connectable with a consumer, a control valve ( 8 ) with a valve element ( 9 ) between the supply connection arrangement and the working connection arrangement and a compensation valve ( 11 ), which is located between the high-pressure connection (P) and the control valve ( 8 ) and is acted upon in the closing direction by a pressure between the compensation valve ( 11 ) and the control valve ( 8 ). It is endeavoured to ensure the most favourable energy consumption possible. For this purpose, in the opening direction the compensation valve ( 11 ) is acted upon by a pressure of a selection device ( 29, 30, 30', 38 ), which optionally supplies the compensation valve ( 11 ) with a pressure control pressure or a flow control pressure.
IPC 8 full level
F15B 11/044 (2006.01); B66C 13/18 (2006.01); B66F 9/22 (2006.01); F15B 11/05 (2006.01)
CPC (source: EP KR US)
F15B 11/0445 (2013.01 - EP US); F15B 11/05 (2013.01 - EP US); F15B 21/00 (2013.01 - KR); F15B 2211/20553 (2013.01 - EP US); F15B 2211/30525 (2013.01 - EP US); F15B 2211/30535 (2013.01 - EP US); F15B 2211/3127 (2013.01 - EP US); F15B 2211/329 (2013.01 - EP US); F15B 2211/40515 (2013.01 - EP US); F15B 2211/421 (2013.01 - EP US); F15B 2211/428 (2013.01 - EP US); F15B 2211/45 (2013.01 - EP US); F15B 2211/455 (2013.01 - EP US); F15B 2211/46 (2013.01 - EP US); F15B 2211/473 (2013.01 - EP US); F15B 2211/50518 (2013.01 - EP US); F15B 2211/50545 (2013.01 - EP US); F15B 2211/50563 (2013.01 - EP US); F15B 2211/50572 (2013.01 - EP US); F15B 2211/50581 (2013.01 - EP US); F15B 2211/5153 (2013.01 - EP US); F15B 2211/55 (2013.01 - EP US); F15B 2211/575 (2013.01 - EP US); F15B 2211/6052 (2013.01 - EP US); F15B 2211/6054 (2013.01 - EP US); F15B 2211/6055 (2013.01 - EP US); F15B 2211/7053 (2013.01 - EP US); F15B 2211/7058 (2013.01 - EP US); F15B 2211/76 (2013.01 - EP US); F15B 2211/761 (2013.01 - EP US)
Citation (search report)
- [XY] DE 10149791 A1 20030410 - LINDE AG [DE]
- [X] US 5660096 A 19970826 - FRIEDRICHSEN WELM [DK]
- [YD] DE 19800721 A1 19990715 - DANFOSS AS [DK]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK YU
DOCDB simple family (publication)
DE 102004063044 A1 20060706; DE 102004063044 B4 20061221; AU 2005246963 A1 20060706; BR PI0506022 A 20060919; CN 100532864 C 20090826; CN 1793673 A 20060628; EP 1710445 A2 20061011; EP 1710445 A3 20090812; KR 100706594 B1 20070412; KR 20060072095 A 20060627; RU 2005141810 A 20070627; RU 2312256 C2 20071210; US 2006156914 A1 20060720; US 7353744 B2 20080408
DOCDB simple family (application)
DE 102004063044 A 20041222; AU 2005246963 A 20051220; BR PI0506022 A 20051222; CN 200510022941 A 20051222; EP 05027271 A 20051214; KR 20050128274 A 20051222; RU 2005141810 A 20051221; US 31570505 A 20051221