EP 2541071 A3 20161207 - Valve assembly for a hydraulic control system
Title (en)
Valve assembly for a hydraulic control system
Title (de)
Ventilanordnung für ein hydraulisches Steuerungssystem
Title (fr)
Agencement de soupapes pour un système de commande hydraulique
Publication
Application
Priority
- DE 102011106081 A 20110630
- CH 13932011 A 20110825
Abstract (en)
[origin: EP2541071A2] The arrangement has a pressure connection (P) connected with a pressure supply, and a tank connection (T) connected with a return pipe. Two load connections (A, B) are connected with hydraulic loads (11), and separate valves (1-4) e.g. 3/3-way valves, control the connection of the load connections with the pressure connection and the tank connection. Another separate valve e.g. 2/2-way valve, connects the pressure and tank connections. The separate valve is closed when the connection between one of the load connections and the pressure connection is opened. The hydraulic loads are formed as hydraulic cylinder or hydraulic motor. An independent claim is also included for a method for operating a hydraulic system.
IPC 8 full level
F15B 11/00 (2006.01)
CPC (source: EP)
F15B 11/006 (2013.01); F15B 2211/20592 (2013.01); F15B 2211/30575 (2013.01); F15B 2211/413 (2013.01); F15B 2211/41563 (2013.01); F15B 2211/45 (2013.01); F15B 2211/7053 (2013.01)
Citation (search report)
- [XI] US 3411536 A 19681119 - TENNIS FRANCIS H
- [X] EP 0211497 B1 19900606
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2541071 A2 20130102; EP 2541071 A3 20161207; EP 2541071 B1 20201111
DOCDB simple family (application)
EP 12004137 A 20120529