Global Patent Index - EP 2580080 A1

EP 2580080 A1 20130417 - HYDRAULIC SYSTEM

Title (en)

HYDRAULIC SYSTEM

Title (de)

HYDRAULISCHE ANLAGE

Title (fr)

INSTALLATION HYDRAULIQUE

Publication

EP 2580080 A1 20130417 (DE)

Application

EP 11722019 A 20110527

Priority

  • DE 102010023016 A 20100608
  • EP 2011002642 W 20110527

Abstract (en)

[origin: WO2011154101A1] The invention relates to a hydraulic system, in particular for a commercial vehicle such as a construction machine, comprising a hydraulic fluid pump (2) which can be reversed in the delivery direction and the delivery volume of which can be variably adjusted. Said system is characterised in that the hydraulic fluid pump (2) removes the hydraulic fluid (3) from a low-pressure fluid chamber (5) of a double piston accumulator (6) via a first fluid-conducting connection (4) and delivers said fluid to a high-pressure fluid chamber (7) of the double piston accumulator (6), the high-pressure chamber being located between the hydraulic fluid pump (2) and the consumer, and in that the volume of the low-pressure fluid chamber (5) is greater than the volume of the high-pressure fluid chamber (7).

IPC 8 full level

E02F 9/22 (2006.01); F15B 1/02 (2006.01); F15B 1/24 (2006.01); F15B 21/047 (2019.01)

CPC (source: EP)

E02F 9/2217 (2013.01); E02F 9/2289 (2013.01); E02F 9/2296 (2013.01); F15B 1/024 (2013.01); F15B 21/047 (2013.01); F15B 1/24 (2013.01); F15B 2201/205 (2013.01); F15B 2201/31 (2013.01); F15B 2201/32 (2013.01); F15B 2201/415 (2013.01); F15B 2211/20546 (2013.01); F15B 2211/20561 (2013.01); F15B 2211/212 (2013.01); F15B 2211/613 (2013.01); F15B 2211/8609 (2013.01)

Citation (search report)

See references of WO 2011154101A1

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)

DE 102010023016 A1 20111208; EP 2580080 A1 20130417; EP 2580080 B1 20140827; WO 2011154101 A1 20111215

DOCDB simple family (application)

DE 102010023016 A 20100608; EP 11722019 A 20110527; EP 2011002642 W 20110527