EP 2486308 A1 20120815 - DEVICE FOR ADJUSTING SIMULTANEOUSLY THE DISPLACEMENT OF A FIRST AND A SECOND HYDROSTATIC UNIT
Title (en)
DEVICE FOR ADJUSTING SIMULTANEOUSLY THE DISPLACEMENT OF A FIRST AND A SECOND HYDROSTATIC UNIT
Title (de)
VORRICHTUNG ZUM VARIIEREN DER HUBVOLUMINA EINER ERSTEN HYDRAULIKMASCHINE UND EINER ZWEITEN HYDRAULIKMASCHINE
Title (fr)
DISPOSITIF POUR RÉGLER SIMULTANÉMENT LA CAPACITÉ DE DEUX MACHINES HYDROSTATIQUES
Publication
Application
Priority
- DE 102009045510 A 20091009
- EP 2010062854 W 20100902
Abstract (en)
[origin: WO2011042266A1] The invention relates to a device (1) for varying the swept volumes of a first hydraulic machine (2) and a second hydraulic machine (3). At least one piston (7) of a piston-cylinder system (4) is operatively connected to axes (5, 6) of the hydraulic machine (2, 3). Depending on a power request from the driver, pressures that correspond to a hydraulic pressure present in the region of the hydraulic machines (2, 3) and act in a first actuating direction of the axes (5, 6) can be applied to the piston (7) in the region of an effective surface (7A) delimiting a piston chamber (12A) by means of a position control valve unit (10) and a high pressure control valve unit (11) of a valve system (9). The pressure in the region of the hydraulic machines (2, 3) can be set in a controlled manner by means of the position control valve unit (10) and can be limited in a controlled manner by means of the high pressure control valve unit (11). By means of the valve system (9), pressures that correspond to hydraulic pressure present in the region of the hydraulic machines (2, 3) and that act in a second actuating direction of the axes of the hydraulic machines (2,3) can be applied to the piston (7) in the region of a further effective surface (7B) delimiting a further piston chamber (13A), wherein the mode of action of the position control valve unit (10) can be reversed in the region of the high pressure control valve unit (11).
IPC 8 full level
F16H 61/4017 (2010.01)
CPC (source: EP KR US)
F16H 61/4008 (2013.01 - KR); F16H 61/4017 (2013.01 - EP KR US); F16H 61/421 (2013.01 - EP KR US); F16H 61/431 (2013.01 - EP KR US); F16H 2039/005 (2013.01 - EP KR US)
Citation (search report)
See references of WO 2011042266A1
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 SE SI SK SM TR
DOCDB simple family (publication)
DE 102009045510 A1 20110414; CN 102575764 A 20120711; CN 102575764 B 20141217; EP 2486308 A1 20120815; JP 2013507583 A 20130304; JP 5552168 B2 20140716; KR 20120091058 A 20120817; US 2012285156 A1 20121115; US 9016053 B2 20150428; WO 2011042266 A1 20110414
DOCDB simple family (application)
DE 102009045510 A 20091009; CN 201080045512 A 20100902; EP 10752759 A 20100902; EP 2010062854 W 20100902; JP 2012532518 A 20100902; KR 20127008895 A 20100902; US 201013497281 A 20100902