EP 3039283 A1 20160706 - FUEL INJECTOR
Title (en)
FUEL INJECTOR
Title (de)
KRAFTSTOFFINJEKTOR
Title (fr)
INJECTEUR DE CARBURANT
Publication
Application
Priority
- DE 102013217371 A 20130830
- EP 2014066770 W 20140805
Abstract (en)
[origin: WO2015028261A1] The invention relates to a fuel injector for internal combustion engines for injecting fuel at high pressure, comprising a pressure chamber formed in an injector body, in which pressure chamber a nozzle needle is arranged in a longitudinally movable manner, which nozzle needle has a cone region tapered in a combustion chamber direction and a pin region having a constant diameter d23 at a combustion-chamber end of the nozzle needle. The injector body has a substantially conical nozzle needle seat, from which a first injection opening extends, and a blind hole, which adjoins the nozzle needle seat on the combustion chamber side. The blind hole has a cylindrical segment, which has the diameter d31, and a hole base, from which a second injection opening extends. The cone region of the nozzle needle interacts with the nozzle needle seat and thereby opens and closes the first injection opening and the second injection opening with respect to the pressure chamber. During a partial stroke of the nozzle needle, the first injection opening and the second injection opening are connected to each other by means of a throttle gap, which is formed in the blind hole between the pin region and the wall of the blind hole, and the throttle gap remains constant at least over the partial stroke of the nozzle needle.
IPC 8 full level
F02M 61/06 (2006.01); F02M 61/18 (2006.01)
CPC (source: EP KR US)
B05B 1/14 (2013.01 - US); B05B 1/1672 (2013.01 - US); B05B 1/3013 (2013.01 - US); F02M 61/06 (2013.01 - EP KR US); F02M 61/18 (2013.01 - US); F02M 61/1806 (2013.01 - US); F02M 61/182 (2013.01 - EP KR US); F02M 61/1886 (2013.01 - KR); F02M 61/1893 (2013.01 - EP KR US); F02M 61/20 (2013.01 - US); F02M 61/1886 (2013.01 - EP US)
Citation (search report)
See references of WO 2015028261A1
Citation (examination)
- US 3559892 A 19710202 - LUCA FRANK DE
- JP 2002322957 A 20021108 - TOYOTA MOTOR CORP
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 2015028261 A1 20150305; BR 112016004058 A2 20170801; BR 112016004058 B1 20220510; CN 105492757 A 20160413; CN 105492757 B 20181023; DE 102013217371 A1 20150305; EP 3039283 A1 20160706; JP 2016532816 A 20161020; JP 6234583 B2 20171122; KR 102167304 B1 20201019; KR 20160048085 A 20160503; US 2016215745 A1 20160728; US 9835124 B2 20171205
DOCDB simple family (application)
EP 2014066770 W 20140805; BR 112016004058 A 20140805; CN 201480047915 A 20140805; DE 102013217371 A 20130830; EP 14749777 A 20140805; JP 2016537197 A 20140805; KR 20167004882 A 20140805; US 201414915283 A 20140805