EP 1984629 A1 20081029 - HYDRAULIC CONTROL ARRANGEMENT WITH REGENERATION AND LOWERING BRAKE VALVE
Title (en)
HYDRAULIC CONTROL ARRANGEMENT WITH REGENERATION AND LOWERING BRAKE VALVE
Title (de)
HYDRAULISCHE STEUERANORDNUNG MIT REGENERATION UND SENKBREMSVENTIL
Title (fr)
SYSTEME DE COMMANDE HYDRAULIQUE A REGENERATION ET SOUPAPE DE FREIN D'ABAISSEMENT
Publication
Application
Priority
- EP 2007000611 W 20070125
- DE 102006006228 A 20060209
Abstract (en)
[origin: WO2007090522A1] A hydraulic control arrangement for activating a consumer, in particular a hydraulic cylinder, is disclosed, comprising a directional control valve (34), the valve spool (38) of which is adjustable for controlling the pressure medium connection between a pressure medium source, a tank and two pressure spaces of the consumer, and comprising a lowering brake valve (20) for controlling the discharge of the volumetric flow of pressure medium from a pressure space becoming smaller, the control piston (22) of which lowering brake valve (20) is acted upon in the closing direction by the force of a spring (24) and in the opening direction by the pressure in the pressure space becoming larger, wherein, for the regeneration, pressure medium can be branched off from the discharging volumetric flow of pressure medium upstream of the lowering brake valve via a non-return valve (28), opening in the direction of the pressure space becoming larger, in a regeneration line and can be accumulated to form the volumetric flow of pressure medium in the feed. According to the invention, the non-return valve is integrated in the valve spool, wherein the pressure acting on the lowering brake valve in the opening direction is indicated through the non-return valve.
IPC 8 full level
F15B 11/024 (2006.01)
CPC (source: EP KR)
F15B 11/003 (2013.01 - EP); F15B 11/024 (2013.01 - EP KR); F15B 13/021 (2013.01 - EP); F15B 2211/50545 (2013.01 - EP)
Citation (search report)
See references of WO 2007090522A1
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
DOCDB simple family (publication)
DE 102006006228 A1 20070816; EP 1984629 A1 20081029; EP 1984629 B1 20130313; JP 2009526177 A 20090716; JP 4824777 B2 20111130; KR 101011944 B1 20110131; KR 20080104122 A 20081201; WO 2007090522 A1 20070816
DOCDB simple family (application)
DE 102006006228 A 20060209; EP 07711381 A 20070125; EP 2007000611 W 20070125; JP 2008553647 A 20070125; KR 20087019471 A 20070125