EP 2657178 B1 20150930 - Hydraulic system of a mobile working machine
Title (en)
Hydraulic system of a mobile working machine
Title (de)
Hydraulikanlage einer mobilen Arbeitsmaschine
Title (fr)
Installation hydraulique d'une machine de travail mobile
Publication
Application
Priority
DE 102012103732 A 20120427
Abstract (en)
[origin: EP2657178A2] The system has a priority valve (P) arranged in a delivery line of a variable flow pump (1) for supply of a hydraulic steering device (L) with a pressure medium, and connected with the steering device by a conveying branch line (3a) and with a working hydraulics (A) by another conveying branch line (3b). A safety device has a shut-off valve device (130) arranged in the latter branch line that is guided to the hydraulics. The valve device is driven into a locking position at non-driven loads of the hydraulics and openable in an open position during controlling of the hydraulics loads. The shut-off valve device is designed as a servo-controlled non-return valve.
IPC 8 full level
B66F 9/22 (2006.01); E02F 9/22 (2006.01); F15B 11/00 (2006.01); F15B 11/16 (2006.01)
CPC (source: EP)
B66F 9/22 (2013.01); E02F 9/2217 (2013.01); E02F 9/2225 (2013.01); E02F 9/225 (2013.01); E02F 9/226 (2013.01); E02F 9/2285 (2013.01); E02F 9/2292 (2013.01); E02F 9/2296 (2013.01); F15B 11/162 (2013.01); F15B 2211/20553 (2013.01); F15B 2211/20576 (2013.01); F15B 2211/4053 (2013.01); F15B 2211/411 (2013.01); F15B 2211/41509 (2013.01); F15B 2211/428 (2013.01); F15B 2211/625 (2013.01); F15B 2211/635 (2013.01); F15B 2211/7142 (2013.01); F15B 2211/85 (2013.01)
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
DOCDB simple family (publication)
EP 2657178 A2 20131030; EP 2657178 A3 20140903; EP 2657178 B1 20150930; EP 2657178 B9 20151209; DE 102012103732 A1 20131031
DOCDB simple family (application)
EP 13162479 A 20130405; DE 102012103732 A 20120427