EP 1281000 A1 20030205 - HYDRAULIC CONTROL ARRANGEMENT
Title (en)
HYDRAULIC CONTROL ARRANGEMENT
Title (de)
HYDRAULISCHE STEUERANORDNUNG
Title (fr)
DISPOSITIF DE COMMANDE HYDRAULIQUE
Publication
Application
Priority
- DE 0101255 W 20010403
- DE 10022910 A 20000511
- DE 10030327 A 20000627
- DE 10100235 A 20010105
- DE 10104298 A 20010130
Abstract (en)
[origin: WO0186153A1] The invention relates to a hydraulic control arrangement for damping travel vibrations of a mobile tool, comprising a lifting cylinder (2) which supports a tool and whose cylinder chambers (12, 14) can be connected to a source of a pressure means or a tank (T) by a control valve arrangement (4). The hydraulic control arrangement also has a damping valve arrangement (8) for connecting one cylinder chamber (12) to a hydraulic accumulator (10) and the other cylinder chamber (14) to a tank. According to the invention, said damping valve arrangement has a valve (34) with a pressure limiting function. This valve is situated between a return valve (30) and the hydraulic accumulator, so that the pressure in said hydraulic accumulator can be reliably limited to a maximum value.
IPC 1-7
IPC 8 full level
E02F 9/22 (2006.01); F15B 1/02 (2006.01); F15B 11/02 (2006.01)
CPC (source: EP)
E02F 9/2207 (2013.01); E02F 9/2217 (2013.01); F15B 1/02 (2013.01)
Citation (search report)
See references of WO 0186153A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0186153 A1 20011115; EP 1281000 A1 20030205; JP 2003532848 A 20031105
DOCDB simple family (application)
DE 0101255 W 20010403; EP 01929299 A 20010403; JP 2001582726 A 20010403