EP 3194772 A1 20170726 - PISTON PUMP
Title (en)
PISTON PUMP
Title (de)
KOLBENPUMPE
Title (fr)
POMPE À PISTON
Publication
Application
Priority
- DE 102014218915 A 20140919
- EP 2015070562 W 20150909
Abstract (en)
[origin: WO2016041821A1] The invention relates to a reciprocating pump (1), having a step piston (4) and intended as hydraulic pump of a slip-controlled vehicle braking system . According to the invention, a piston step (8) of the step piston (4) delimits a stepped space (36) which by way of a differential pressure valve (37) communicates with a pump outlet (34). The stepped space (36) suctions and displaces in a direction opposite to that of a displacement space (25), but in smaller quantities; this results in a more even brake fluid volume flow in a pump outlet (34) and lower pressure pulsations.
IPC 8 full level
F04B 1/04 (2006.01); F04B 11/00 (2006.01); F04B 53/14 (2006.01)
CPC (source: EP KR US)
F04B 1/0408 (2013.01 - EP KR US); F04B 5/00 (2013.01 - US); F04B 9/042 (2013.01 - US); F04B 11/00 (2013.01 - EP KR US); F04B 53/126 (2013.01 - US); F04B 53/14 (2013.01 - EP KR 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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2016041821 A1 20160324; CN 106715900 A 20170524; CN 106715900 B 20190531; DE 102014218915 A1 20160407; EP 3194772 A1 20170726; EP 3194772 B1 20181226; JP 2017526864 A 20170914; JP 6453471 B2 20190116; KR 102366884 B1 20220225; KR 20170058372 A 20170526; US 10385833 B2 20190820; US 2017291586 A1 20171012
DOCDB simple family (application)
EP 2015070562 W 20150909; CN 201580049593 A 20150909; DE 102014218915 A 20140919; EP 15767111 A 20150909; JP 2017533997 A 20150909; KR 20177007382 A 20150909; US 201515512229 A 20150909