EP 2642122 B1 20140521 - Pump power unit
Title (en)
Pump power unit
Title (de)
Pumpenaggregat
Title (fr)
Groupe motopompe
Publication
Application
Priority
EP 12160580 A 20120321
Abstract (en)
[origin: EP2642122A1] The pump device has a high-pressure pump (5), a low-pressure pump (6), a common electric submersible motor (7) and an oil-containing housing (4) with a recirculation connection (8) for connecting a recirculation line (9). A low pressure-switching valve (U) and a check valve (R) are arranged inside the housing from the valve combination (V) and are connected, so that the delivery rate of the pumps are united in the housing interior to a single discharge outlet (13) of the housing, at which the system pressure relief valve (DB) mounted outside the housing is connected.
IPC 8 full level
F04B 17/03 (2006.01); F04B 17/06 (2006.01)
CPC (source: EP US)
F04B 1/08 (2013.01 - EP US); F04B 17/03 (2013.01 - EP US); F04B 17/06 (2013.01 - EP US)
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 2642122 A1 20130925; EP 2642122 B1 20140521; CN 103321869 A 20130925; CN 103321869 B 20170301; US 2013251558 A1 20130926; US 9212655 B2 20151215
DOCDB simple family (application)
EP 12160580 A 20120321; CN 201310090780 A 20130320; US 201313839122 A 20130315