EP 2721283 A1 20140423 - FUEL INJECTOR FOR AN INTERNAL COMBUSTION ENGINE
Title (en)
FUEL INJECTOR FOR AN INTERNAL COMBUSTION ENGINE
Title (de)
KRAFTSTOFFINJEKTOR FÜR EINE BRENNKRAFTMASCHINE
Title (fr)
INJECTEUR DE CARBURANT POUR UN MOTEUR À COMBUSTION INTERNE
Publication
Application
Priority
- DE 102011077464 A 20110614
- EP 2012059807 W 20120525
Abstract (en)
[origin: WO2012171770A1] The invention relates to a fuel injector (10) for internal combustion engines, having a nozzle needle (100; 100a; 100b) which is arranged in an axially displaceable manner in a housing (11) and which has two guide regions (35; 35b; 36; 36b) axially spaced apart from one another, wherein passages for highly pressurized fuel from a fuel inflow region (32) in the direction of spray openings (15) in the housing (11) are formed by flattened portions (37; 37a; 37b, 38; 38a; 38b)in the region of the guide regions (35, 35b; 36, 36b), and wherein, between the guide regions (35; 35b, 36; 36b), the nozzle needle (100; 100a; 100b) has a region (39; 39a) with reduced cross-sectional area in relation to the guide regions (35; 35b, 36; 36b). It is provided according to the invention that, as viewed in the longitudinal direction of (100; 100a; 100b), the region (39; 39a) between the two guide regions (35; 35b, 36; 36b) is formed continuously with the reduced cross-sectional area at at least one point.
IPC 8 full level
F02M 61/10 (2006.01); F02M 61/12 (2006.01)
CPC (source: EP)
F02M 61/10 (2013.01); F02M 61/12 (2013.01)
Citation (search report)
See references of WO 2012171770A1
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 102011077464 A1 20121220; EP 2721283 A1 20140423; WO 2012171770 A1 20121220
DOCDB simple family (application)
DE 102011077464 A 20110614; EP 12723689 A 20120525; EP 2012059807 W 20120525