EP 2655895 A1 20131030 - HYDRAULIC DRIVE
Title (en)
HYDRAULIC DRIVE
Title (de)
HYDRAULISCHER ANTRIEB
Title (fr)
ENTRAÎNEMENT HYDRAULIQUE
Publication
Application
Priority
- DE 102010055864 A 20101222
- DE 102011108285 A 20110721
- EP 2011005668 W 20111111
Abstract (en)
[origin: WO2012084093A1] The invention relates to a hydraulic drive for a hydraulic load or for a hydraulic system having a variable-displacement pump which is mechanically coupled to a preferably variable-speed drive motor, and a control for adjusting at least the capacity of the pump and optionally the speed of the drive motor. According to the invention a torque detecting or determining device is provided which detects or calculates a current output torque of the drive motor, wherein in response thereto the capacity of the pump is set to a value at which the current output torque is at or below a set maximum value.
IPC 8 full level
F04B 49/00 (2006.01); F15B 11/042 (2006.01)
CPC (source: EP US)
F04B 17/03 (2013.01 - US); F04B 49/065 (2013.01 - EP US); F15B 11/0423 (2013.01 - EP US); F04B 2203/0207 (2013.01 - EP US); F04B 2205/06 (2013.01 - EP US); F15B 2211/20515 (2013.01 - EP US); F15B 2211/20553 (2013.01 - EP US); F15B 2211/26 (2013.01 - EP US); F15B 2211/6309 (2013.01 - EP US); F15B 2211/633 (2013.01 - EP US); F15B 2211/6333 (2013.01 - EP US); F15B 2211/6651 (2013.01 - EP US); F15B 2211/6652 (2013.01 - EP US); F15B 2211/6655 (2013.01 - EP US)
Citation (search report)
See references of WO 2012084093A1
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 2012084093 A1 20120628; CN 103261706 A 20130821; DE 102011108285 A1 20120628; EP 2655895 A1 20131030; EP 2655895 B1 20200122; TW 201239206 A 20121001; TW I608172 B 20171211; US 2013336812 A1 20131219
DOCDB simple family (application)
EP 2011005668 W 20111111; CN 201180062030 A 20111111; DE 102011108285 A 20110721; EP 11784424 A 20111111; TW 100147245 A 20111220; US 201113994845 A 20111111