EP 1625011 B1 20080319 - HYDRAULIC DRIVE
Title (en)
HYDRAULIC DRIVE
Title (de)
HYDRAULISCHER ANTRIEB
Title (fr)
ENTRAINEMENT HYDRAULIQUE
Publication
Application
Priority
- DE 2004001014 W 20040514
- DE 10322169 A 20030516
- DE 102004005020 A 20040130
Abstract (en)
[origin: DE102004024126A1] Hydraulic drive has an active surface (30) acting in the driving direction and delimiting an annular chamber (32) which is connected to a switching valve (10). The annular chamber is impinged with a supply pressure in the original position of the switching valve and with a lower supply pressure when a predetermined loading pressure is exceeded. An independent claim is also included for a switching valve for the hydraulic drive. Preferred Features: The switching valve prevents the connection of the annular chamber with a tank line (16) and permits a pressure flow in the counter direction. A tank line damper is provided in the tank line.
IPC 8 full level
B30B 15/16 (2006.01); F03C 1/007 (2006.01); F15B 11/02 (2006.01); F15B 11/024 (2006.01); F15B 11/028 (2006.01); F15B 11/036 (2006.01)
CPC (source: EP US)
B30B 15/16 (2013.01 - EP US); B30B 15/161 (2013.01 - EP US); F03C 1/007 (2013.01 - EP US); F15B 11/022 (2013.01 - EP US); F15B 11/024 (2013.01 - EP US); F15B 11/028 (2013.01 - EP US); F15B 11/036 (2013.01 - EP US); F15B 2211/20592 (2013.01 - EP US); F15B 2211/3133 (2013.01 - EP US); F15B 2211/6653 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
US 2007012171 A1 20070118; US 7370569 B2 20080513; AT E389530 T1 20080415; DE 102004024126 A1 20041202; DE 502004006585 D1 20080430; EP 1625011 A1 20060215; EP 1625011 B1 20080319; JP 2007502213 A 20070208; WO 2004103692 A1 20041202
DOCDB simple family (application)
US 55702305 A 20051116; AT 04732933 T 20040514; DE 102004024126 A 20040514; DE 2004001014 W 20040514; DE 502004006585 T 20040514; EP 04732933 A 20040514; JP 2006529598 A 20040514