EP 1691084 A2 20060816 - Hydraulic arrangement for dampening vibrations
Title (en)
Hydraulic arrangement for dampening vibrations
Title (de)
Hydraulische Anordnung zur Schwingungsdämpfung
Title (fr)
Assemblage hydraulique d'amortissement de vibrations
Publication
Application
Priority
US 5668405 A 20050211
Abstract (en)
The four-wheel drive construction machine has a hydraulic system (100) with a cylinder (60) and a piston (67) to dampen oscillations at the jib arm (50), which carries a bucket (70) and the like and a control unit (130). The hydraulic unit (110) is connected to the cylinder piston base side (61), the cylinder piston rod side (62), the main control valve (120) and the hydraulic fluid tank (90) to dampen piston movements through jib oscillations. The main control valve automatically raises the hydraulic pressure at the piston base side, when the pressure is below the limit.
IPC 8 full level
F15B 21/08 (2006.01); F15B 11/044 (2006.01)
CPC (source: EP US)
E02F 9/2207 (2013.01 - EP US); F15B 11/044 (2013.01 - EP US); F15B 21/008 (2013.01 - EP US); F15B 21/08 (2013.01 - EP US); F15B 2211/20546 (2013.01 - EP US); F15B 2211/40515 (2013.01 - EP US); F15B 2211/46 (2013.01 - EP US); F15B 2211/50563 (2013.01 - EP US); F15B 2211/575 (2013.01 - EP US); F15B 2211/6313 (2013.01 - EP US); F15B 2211/6336 (2013.01 - EP US); F15B 2211/6653 (2013.01 - EP US); F15B 2211/7053 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1691084 A2 20060816; JP 2006219975 A 20060824; US 2006179831 A1 20060817; US 7165395 B2 20070123
DOCDB simple family (application)
EP 05112154 A 20051214; JP 2006013357 A 20060123; US 5668405 A 20050211