EP 2580439 A1 20130417 - PRESSURE EQUALIZATION DEVICE FOR HYDRAULIC SYSTEMS
Title (en)
PRESSURE EQUALIZATION DEVICE FOR HYDRAULIC SYSTEMS
Title (de)
DRUCKAUSGLEICHSVORRICHTUNG FÜR HYDRAULIKSYSTEME
Title (fr)
DISPOSITIF DE COMPENSATION DE LA PRESSION POUR SYSTÈMES HYDRAULIQUES
Publication
Application
Priority
- DE 102010029834 A 20100609
- EP 2011057867 W 20110516
Abstract (en)
[origin: WO2011154222A1] The invention relates to a pressure equalization device (10) for at least one component (12) of a hydraulic system (14) to which liquid is supplied, comprising a supply device, which contains a pumping unit (16) and supply lines (18) for providing a liquid, wherein at least one component (12) supplied with liquid is connected to at least one gas accumulator (20), which is controlled by means of hydraulic system pressure. The claimed pressure equalization device can be used in particular in metering systems that conduct liquid auxiliary agents for exhaust gas after-treatment in internal combustion engines.
IPC 8 full level
F01N 3/20 (2006.01)
CPC (source: EP)
F01N 3/2066 (2013.01); F01N 2610/02 (2013.01); F01N 2610/1433 (2013.01); Y02T 10/12 (2013.01)
Citation (search report)
See references of WO 2011154222A1
Citation (examination)
- US 4667473 A 19870526 - ROBINSON CURTISS W [US]
- EP 0897480 B1 20020717 - HYDAC TECHNOLOGY GMBH [DE]
- US 4187682 A 19800212 - SHEN JAN-SON [US]
- CA 2453074 A1 20050719 - DOERKSEN CAREY T [CA]
- WO 2011048292 A2 20110428 - COUTIER MOULAGE GEN IND [FR], et al
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)
WO 2011154222 A1 20111215; CN 102939444 A 20130220; DE 102010029834 A1 20111215; EP 2580439 A1 20130417
DOCDB simple family (application)
EP 2011057867 W 20110516; CN 201180028575 A 20110516; DE 102010029834 A 20100609; EP 11730235 A 20110516