Global Patent Index - EP 2679833 B1

EP 2679833 B1 20180321 - Hydraulic load-sensing system for a vehicle

Title (en)

Hydraulic load-sensing system for a vehicle

Title (de)

Loadsensing-Hydrauliksystem für ein Fahrzeug

Title (fr)

Système hydraulique pour véhicule à détection de charge

Publication

EP 2679833 B1 20180321 (FR)

Application

EP 12174365 A 20120629

Priority

EP 12174365 A 20120629

Abstract (en)

[origin: EP2679833A1] The system has a flow restrictor device (LS) arranged in a pressure channel (10) between a variable flow pump (P) and a hydraulic receiver (R) e.g. hydraulic motor. A correction device (A) has a distributor comprising an operating slide (30) whose first end (31) is subjected to a real load pressure (Pu) at an outlet of the restrictor device and to a pressure (X) of a calibration spring (310), and second end (32) is subjected to a pressure (Pls) at an inlet of the restrictor device. The correction device controls a control device (C) with a load pressure (Pu2) different from the real pressure.

IPC 8 full level

F15B 11/05 (2006.01)

CPC (source: EP)

E02F 9/2225 (2013.01); E02F 9/2296 (2013.01); F15B 11/055 (2013.01); F15B 11/168 (2013.01); F15B 2211/20553 (2013.01); F15B 2211/253 (2013.01); F15B 2211/40515 (2013.01); F15B 2211/6057 (2013.01); F15B 2211/6058 (2013.01); F15B 2211/652 (2013.01); F15B 2211/7058 (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 2679833 A1 20140101; EP 2679833 B1 20180321

DOCDB simple family (application)

EP 12174365 A 20120629