EP 2739862 A2 20140611 - HYDRAULIC CIRCUIT FOR WORKING MACHINES AND WORKING MACHINE
Title (en)
HYDRAULIC CIRCUIT FOR WORKING MACHINES AND WORKING MACHINE
Title (de)
HYDRAULISCHE SCHALTUNG FÜR MASCHINEN UND ARBEITSMASCHINE
Title (fr)
CIRCUIT HYDRAULIQUE POUR MACHINES-OUTILS ET MACHINE-OUTIL CORRESPONDANTE
Publication
Application
Priority
- IT FI20110164 A 20110805
- IT 2012000239 W 20120731
Abstract (en)
[origin: WO2013021404A2] Hydraulic circuit for working machines comprising a power unit (P) for pressurizing a hydraulic fluid, a unit of distribution (D) comprising a plurality of proportional valves downstream of the power unit (P), a control unit (C) connected to the proportional distribution unit (C), a plurality of groups of hydraulic actuators (GA, GT, GS) that can be connected to the power unit (P) by the proportional distribution unit (D), and an operations control panel (CO) connected to the control unit(C). The hydraulic circuit comprises a flow diverter (DF) placed between the distribution unit (D) and the groups of hydraulic actuators (GA, GT, GS), so that the latter are selectively connectable to the distribution unit (D) by means of the diverter (DF). The flow diverter (DF) is controlled manually or by a program by means of the control unit (C). The number of proportional valves of the distribution unit (D) is equal to the maximum number of actuators that can be simultaneously activated. A group of hydraulic actuators (GS) is destined to execute of a phase of stabilization of the machine by activating corresponding stabilizers (4).
IPC 8 full level
F15B 11/16 (2006.01)
CPC (source: EP)
B66C 23/80 (2013.01); B66C 23/90 (2013.01); E02F 9/085 (2013.01); E02F 9/2012 (2013.01); E02F 9/2041 (2013.01); E02F 9/2228 (2013.01); E02F 9/2292 (2013.01); F15B 11/16 (2013.01); F15B 2211/30595 (2013.01)
Citation (search report)
See references of WO 2013021404A2
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)
WO 2013021404 A2 20130214; WO 2013021404 A3 20130704; EP 2739862 A2 20140611; IT FI20110164 A1 20130206
DOCDB simple family (application)
IT 2012000239 W 20120731; EP 12773383 A 20120731; IT FI20110164 A 20110805