EP 1787021 A1 20070523 - INTEGRATED FILTER-INJECTOR
Title (en)
INTEGRATED FILTER-INJECTOR
Title (de)
INTEGRIERTER FILTER-INJEKTOR
Title (fr)
FILTRE-INJECTEUR INTEGRE
Publication
Application
Priority
- EP 2005054060 W 20050817
- TR 200402049 A 20040818
Abstract (en)
[origin: WO2006018440A1] In high-pressure injection systems used in internal combustion engines, the narrowing of diameters of holes in the injector nozzle brings about the risk of clogging of such holes completely or partially even by very small solid particles in the fuel. By this invention, an integrated filter applicable to any type of fuel injectors, which prevents the injector nozzle (7) holes (8) to be clogged by solid particles resulting from the fuel itself or from the injection system is explained. The said filter is directly incorporated within the injector body (1). Furthermore, thanks to a collection volume (12) provided in the integrated filter, which has a structure to allow accumulation of solid particles, an integrated filter element will have a longer operation life. An additional acquisition with an integrated filter is that by determining the chamfer size (13) of an injector needle (5), it can be ensured that the external surface (15) of the needle (5) covers a portion of the holes (6) provided on the filter when the needle (5) is in closed position, thus changing the cross-section of flow in the course of injection process proceeding from the start of injection and that hence a step-by-step injection becomes possible.
IPC 8 full level
F02M 61/16 (2006.01); F02M 45/08 (2006.01); F02M 61/10 (2006.01)
CPC (source: EP)
F02M 45/08 (2013.01); F02M 61/10 (2013.01); F02M 61/165 (2013.01); F02M 2200/315 (2013.01); F02M 2200/40 (2013.01)
Citation (search report)
See references of WO 2006018440A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2006018440 A1 20060223; EP 1787021 A1 20070523; TR 200402049 A1 20060321
DOCDB simple family (application)
EP 2005054060 W 20050817; EP 05774132 A 20050817; TR 200402049 A 20040818