EP 3059439 B1 20180613 - PUMP UNIT FOR A HIGH-PRESSURE PUMP
Title (en)
PUMP UNIT FOR A HIGH-PRESSURE PUMP
Title (de)
PUMPENEINHEIT FÜR EINE HOCHDRUCKPUMPE
Title (fr)
UNITE DE POMPE POUR UNE POMPE A HAUTE PRESSION
Publication
Application
Priority
- DE 102011003396 A 20110131
- EP 12702790 A 20120130
Abstract (en)
[origin: WO2012104236A2] The pump unit (10) comprises a pump housing (15) having a low-pressure inlet (17) and a high-pressure outlet (19). A working medium is fed via the low-pressure inlet (17) to a working chamber (20) which is formed in the pump housing (15). The working medium is discharged from the working chamber (20) via the high-pressure outlet (19). Furthermore, the pump unit (10) comprises a pump piston channel (36) which is formed in the pump housing (15) and has a longitudinal axis (L1). The pump unit (10) has a first pump piston (32) which is arranged movably along the longitudinal axis (L1) in the pump piston channel (36) and is coupled hydraulically to the working chamber (20). Furthermore, the pump unit (10) has a second pump piston (32) which is arranged movably along the longitudinal axis (L1) in the pump piston channel (36) and is coupled hydraulically via a compensation volume (100) to the first pump piston (32), wherein the compensation volume (100) is coupled hydraulically to a compensation unit (110) which is configured to adapt the compensation volume (100) in a manner which is dependent on a pressure in the working chamber (20).
IPC 8 full level
F02M 59/10 (2006.01); F02M 59/02 (2006.01); F02M 59/20 (2006.01); F02M 59/22 (2006.01); F02M 59/32 (2006.01); F02M 59/44 (2006.01); F02M 63/02 (2006.01); F04B 1/07 (2006.01); F04B 1/08 (2006.01)
CPC (source: EP US)
F02M 55/04 (2013.01 - EP US); F02M 59/022 (2013.01 - EP US); F02M 59/102 (2013.01 - EP US); F02M 59/20 (2013.01 - EP US); F02M 59/22 (2013.01 - EP US); F02M 59/447 (2013.01 - EP US); F02M 63/023 (2013.01 - EP US); F02M 63/0265 (2013.01 - EP US); F04B 1/00 (2013.01 - EP US); F04B 1/0404 (2013.01 - US); F04B 9/06 (2013.01 - EP US); F04B 49/16 (2013.01 - US); F02M 2200/315 (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)
DE 102011003396 A1 20120802; BR 112013019539 A2 20161004; CN 103443440 A 20131211; CN 103443440 B 20160224; EP 2670971 A2 20131211; EP 2670971 B1 20170315; EP 3059437 A1 20160824; EP 3059437 B1 20180606; EP 3059438 A1 20160824; EP 3059438 B1 20180314; EP 3059439 A1 20160824; EP 3059439 B1 20180613; US 10047740 B2 20180814; US 2014050597 A1 20140220; WO 2012104236 A2 20120809; WO 2012104236 A3 20121101
DOCDB simple family (application)
DE 102011003396 A 20110131; BR 112013019539 A 20120130; CN 201280016478 A 20120130; EP 12702790 A 20120130; EP 16157404 A 20120130; EP 16157410 A 20120130; EP 16157416 A 20120130; EP 2012051409 W 20120130; US 201213982803 A 20120130