EP 2307726 B1 20160127 - ADJUSTABLE PUMP
Title (en)
ADJUSTABLE PUMP
Title (de)
VERSTELLPUMPE MIT EINEM MENGENREGLER UND EINEM DRUCKVENTIL.
Title (fr)
POMPE À CYLINDRÉE VARIABLE
Publication
Application
Priority
- EP 2009004772 W 20090702
- DE 102008033788 A 20080715
Abstract (en)
[origin: WO2010006705A2] The invention relates to a variable displacement pump having a cam ring which can be adjusted as a function of the pressure in a first adjusting pressure chamber and in a second adjusting pressure chamber, and having a flow rate regulator which is designed as a slide valve with a flow rate regulating piston which has a plurality of control edges and which is acted on with a differential pressure prevailing upstream and downstream of a hydraulic resistance, and having a pressure valve. The invention is characterized in that the pressure valve is designed as a slide valve with a pressure regulating piston which has a pressure control edge and which is acted on, on a pressure control surface, with the pressure prevailing upstream or if appropriate downstream of the hydraulic resistance in the high-pressure region.
IPC 8 full level
F04C 14/22 (2006.01)
CPC (source: EP)
F04C 2/3442 (2013.01); F04C 14/223 (2013.01); F04C 14/24 (2013.01); F04C 2270/52 (2013.01); F04C 2270/58 (2013.01)
Designated contracting state (EPC)
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 SE SI SK SM TR
DOCDB simple family (publication)
WO 2010006705 A2 20100121; WO 2010006705 A3 20100617; WO 2010006705 A8 20101202; DE 112009001577 A5 20120223; EP 2307726 A2 20110413; EP 2307726 B1 20160127; ES 2567089 T3 20160419
DOCDB simple family (application)
EP 2009004772 W 20090702; DE 112009001577 T 20090702; EP 09776916 A 20090702; ES 09776916 T 20090702