Global Patent Index - EP 2069640 A1

EP 2069640 A1 20090617 - HYDROSTATIC DRIVE UNIT

Title (en)

HYDROSTATIC DRIVE UNIT

Title (de)

HYDROSTATISCHE ANTRIEBSEINHEIT

Title (fr)

UNITÉ D'ENTRAÎNEMENT HYDROSTATIQUE

Publication

EP 2069640 A1 20090617 (DE)

Application

EP 07785899 A 20070705

Priority

  • EP 2007005929 W 20070705
  • DE 102006045442 A 20060926

Abstract (en)

[origin: WO2008037306A1] A hydrostatic drive unit is disclosed for supplying pressure medium to a hydraulic consumer having two pressure spaces. According to the invention, the hydrostatic drive unit has an adjusting motor and two hydrostatic units which can be driven via the adjusting motor. Pressure medium is conveyed directly from one of the pressure spaces into the other pressure space via one of the hydrostatic units. The further hydrostatic unit conveys pressure medium from a tank into the lastmentioned pressure space or, depending on the drive direction, from the latter into the tank.

IPC 8 full level

F15B 7/00 (2006.01); F04B 1/22 (2006.01); F04B 3/00 (2006.01); F04B 23/04 (2006.01); F15B 11/17 (2006.01)

CPC (source: EP)

F04B 1/22 (2013.01); F04B 23/04 (2013.01); F15B 3/00 (2013.01); F15B 7/001 (2013.01); F15B 7/006 (2013.01); F15B 11/17 (2013.01); F15B 2211/20507 (2013.01); F15B 2211/20538 (2013.01); F15B 2211/20561 (2013.01); F15B 2211/20584 (2013.01); F15B 2211/214 (2013.01); F15B 2211/6651 (2013.01); F15B 2211/7053 (2013.01)

Citation (search report)

See references of WO 2008037306A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA HR MK RS

DOCDB simple family (publication)

DE 102006045442 A1 20080327; AT E537366 T1 20111215; CN 101517243 A 20090826; CN 101517243 B 20120208; EP 2069640 A1 20090617; EP 2069640 B1 20111214; WO 2008037306 A1 20080403

DOCDB simple family (application)

DE 102006045442 A 20060926; AT 07785899 T 20070705; CN 200780035517 A 20070705; EP 07785899 A 20070705; EP 2007005929 W 20070705