EP 2891805 B1 20200101 - Control assembly and a control valve for such a control assembly
Title (en)
Control assembly and a control valve for such a control assembly
Title (de)
Steueranordnung und Steuerventil für eine derartige Steueranordnung
Title (fr)
Système de commande et soupape de commande pour un tel système de commande
Publication
Application
Priority
DE 102013224655 A 20131202
Abstract (en)
[origin: IN3040DE2014A] The present subject matter relates to a hydraulic control arrangement for controlling at least one actuator. The control arrangement here forms an open-center-system. For the at least one load, a control valve is provided, via which a circulating flow path extends. This on one hand is connected to a hydraulic pump and on the other hand to a tank. The circulating flow path is connected to the hydraulic pump via a pilot orifice, which is provided between the hydraulic pump and control valve. If the control valve controls the actuator via a metering orifice, then at the same time the circulating flow path is controlled and in addition a connection is controlled between the circulating flow path and the actuator downstream of the metering orifice. Via a pressure difference controller, a pressure difference is kept constant via the pilot orifice and the metering orifice, wherein a fluid volume flow to actuator is varied independent of the load pressure via the metering orifice.
IPC 8 full level
F15B 11/05 (2006.01); F15B 13/04 (2006.01)
CPC (source: EP)
F15B 11/055 (2013.01); F15B 13/0403 (2013.01); F15B 11/165 (2013.01); F15B 2211/20553 (2013.01); F15B 2211/253 (2013.01); F15B 2211/3116 (2013.01); F15B 2211/40507 (2013.01); F15B 2211/41509 (2013.01); F15B 2211/45 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
DE 102013224655 A1 20150603; EP 2891805 A2 20150708; EP 2891805 A3 20150902; EP 2891805 B1 20200101; IN 3040DE2014 A 20150710
DOCDB simple family (application)
DE 102013224655 A 20131202; EP 14190831 A 20141029; IN 3040DE2014 A 20141024