EP 3786461 A1 20210303 - DIRECTIONAL VALVE FOR A WORK VEHICLE AND RELATED HYDRAULIC ARRANGEMENT
Title (en)
DIRECTIONAL VALVE FOR A WORK VEHICLE AND RELATED HYDRAULIC ARRANGEMENT
Title (de)
WEGEVENTIL FÜR EIN ARBEITSFAHRZEUG UND ZUGEHÖRIGE HYDRAULISCHE ANORDNUNG
Title (fr)
SOUPAPE DIRECTIONNELLE POUR UN VÉHICULE DE TRAVAIL ET SYSTÈME HYDRAULIQUE ASSOCIÉ
Publication
Application
Priority
IT 201900015363 A 20190902
Abstract (en)
Directional valve (12) for a hydraulic arrangement (1) of a work vehicle for controlling the operation of a double acting cylinder (2) comprising a piston chamber (6a) and a rod chamber (6b), such directional valve (12) comprising a first port (12a) fluidly connectable to an output of a load sensing hydraulic supply system (10), a second port (12b) fluidly connectable to a reservoir (11), a third port (12c) fluidly connectable to said hydraulic supply system (10) to carry a load sensing signal configured to control the operation of this latter, a fourth and fifth ports (12d, 12e) fluidly connectable to respectively piston and rod chambers (6a, 6b), such valve (12) being configured to allow the generation of an appropriate load sensing signal in both a lowering and lifting operational condition of the cylinder (2).
IPC 8 full level
F15B 13/04 (2006.01); F15B 11/05 (2006.01)
CPC (source: EP)
F15B 11/055 (2013.01); F15B 13/0417 (2013.01); F15B 2211/651 (2013.01); F15B 2211/761 (2013.01); F15B 2211/8609 (2013.01)
Citation (search report)
- [XI] DE 3505623 A1 19860821 - BOSCH GMBH ROBERT [DE]
- [XI] US 5211196 A 19930518 - SCHWELM HANS [LU]
- [XI] CN 103062144 B 20150812
- [A] EP 3001042 A1 20160330 - CNH IND ITALIA SPA [IT]
- [A] EP 2365226 A1 20110914 - CNH ITALIA SPA [IT]
- [A] EP 1143152 A2 20011010 - HUSCO INT INC [US]
- [A] JP 2002005107 A 20020109 - NACHI FUJIKOSHI CORP
- [A] CN 105351278 A 20160224 - SHANGHAI XINYUE METER FACTORY
- [A] WO 2016163926 A1 20161013 - VOLVO CONSTR EQUIP AB [SE]
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)
DOCDB simple family (application)
EP 20193827 A 20200901; IT 201900015363 A 20190902