EP 1135613 B1 20030409 - METHOD AND CONTROL DEVICE FOR CONTROLLING A HYDRAULIC CONSUMER
Title (en)
METHOD AND CONTROL DEVICE FOR CONTROLLING A HYDRAULIC CONSUMER
Title (de)
VERFAHREN UND STEUERANORDNUNG ZUR ANSTEUERUNG EINES HYDRAULISCHEN VERBRAUCHERS
Title (fr)
PROCEDE ET DISPOSITIF DE COMMANDE POUR CONSOMMATEUR HYDRAULIQUE
Publication
Application
Priority
- DE 9903601 W 19991111
- DE 19855187 A 19981130
Abstract (en)
[origin: DE19855187A1] The invention relates to a method and a control device for controlling at least one hydraulic consumer. The control device has a pump. The output of the pump can be adjusted in accordance with the load pressure of a consumer. Control occurs by means of a proportional directional control valve (4) that forms a measuring diaphragm. A pressure balance (5) is associated with the control valve and enables the decrease in pressure to remain constant irrespective of load pressure by means of the measuring diaphragm. According to the invention, a lower load pressure is applied to the pump when the pressure balance is opened fully, whereby the decrease in pressure is attenuated by the measuring diaphragm.
IPC 1-7
IPC 8 full level
F15B 11/16 (2006.01); F15B 13/04 (2006.01)
CPC (source: EP US)
F15B 11/163 (2013.01 - EP US); F15B 13/0418 (2013.01 - EP US); F15B 2211/20546 (2013.01 - EP US); F15B 2211/30515 (2013.01 - EP US); F15B 2211/30555 (2013.01 - EP US); F15B 2211/3111 (2013.01 - EP US); F15B 2211/329 (2013.01 - EP US); F15B 2211/40515 (2013.01 - EP US); F15B 2211/41581 (2013.01 - EP US); F15B 2211/46 (2013.01 - EP US); F15B 2211/57 (2013.01 - EP US); F15B 2211/6355 (2013.01 - EP US)
Designated contracting state (EPC)
DE FI FR GB IT
DOCDB simple family (publication)
DE 19855187 A1 20000531; DE 59905000 D1 20030515; EP 1135613 A1 20010926; EP 1135613 B1 20030409; US 6516614 B1 20030211; WO 0032944 A1 20000608; WO 0032944 B1 20000831
DOCDB simple family (application)
DE 19855187 A 19981130; DE 59905000 T 19991111; DE 9903601 W 19991111; EP 99963215 A 19991111; US 83176601 A 20010608