EP 2602492 A3 20140521 - Electro-hydraulic control device
Title (en)
Electro-hydraulic control device
Title (de)
Elektrohydraulische Steuereinrichtung
Title (fr)
Dispositif de commande électro-hydraulique
Publication
Application
Priority
DE 102011120767 A 20111210
Abstract (en)
[origin: EP2602492A2] The device (1) has a valve arrangement (16) comprising valves e.g. seat valves and slider valves. A position transducer (46) senses a position of an actuator element and generates a position signal to be applied to a controller. The controller comprises an input to receive the position signal and an output to predefine a pressure medium quantity to a pressure medium source. The controller comprises a logic circuit that supplies a pulsed actuation signal or a predefined actuation signal to outflow valves (34, 38) or an actuation signal or a predefined actuation signal to the source. The pressure medium source is designed as an adjustment pump or a rotational-speed-controlled constant pump (2).
IPC 8 full level
F15B 21/08 (2006.01)
CPC (source: EP US)
F15B 11/0426 (2013.01 - US); F15B 11/046 (2013.01 - US); F15B 21/087 (2013.01 - EP US); F15B 2211/20515 (2013.01 - EP US); F15B 2211/20538 (2013.01 - EP US); F15B 2211/20546 (2013.01 - EP US); F15B 2211/255 (2013.01 - EP US); F15B 2211/30575 (2013.01 - EP US); F15B 2211/328 (2013.01 - EP US); F15B 2211/6309 (2013.01 - EP US); F15B 2211/6313 (2013.01 - EP US); F15B 2211/6336 (2013.01 - EP US); F15B 2211/665 (2013.01 - EP US); F15B 2211/6651 (2013.01 - EP US); F15B 2211/6652 (2013.01 - EP US); F15B 2211/6654 (2013.01 - EP US)
Citation (search report)
- [Y] US 2005211936 A1 20050929 - TABOR KEITH A [US], et al
- [Y] EP 0247335 A2 19871202 - VICKERS INC [US]
- [Y] DE 102006058913 A1 20080619 - ZAHNRADFABRIK FRIEDRICHSHAFEN [DE]
- [Y] DE 4431103 A1 19960314 - DANFOSS AS [DK]
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)
EP 2602492 A2 20130612; EP 2602492 A3 20140521; CN 103161785 A 20130619; DE 102011120767 A1 20130613; JP 2013122320 A 20130620; US 2013145926 A1 20130613
DOCDB simple family (application)
EP 12007409 A 20121030; CN 201210521723 A 20121207; DE 102011120767 A 20111210; JP 2012269003 A 20121210; US 201213709408 A 20121210