EP 2799706 A1 20141105 - Injection nozzles
Title (en)
Injection nozzles
Title (de)
Einspritzdüse
Title (fr)
Buse à injection
Publication
Application
Priority
EP 13166122 A 20130501
Abstract (en)
An injection nozzle 21 comprises a needle 22 within a nozzle body 23. The end 24 of the needle 22 is biased into contact with a conical seat 25 within the nozzle body 23 by a compression spring (not shown), so as to seal the nozzle 21. The end 27 of the nozzle body 23 includes small apertures 28 through which fuel is injected into the engine. The injection nozzle 21 includes an upper guiding region 30, for centring the needle 22 within the nozzle body 23. A lower guide in the form of a collar 31 functions to centre the lower part of the needle 22 within the nozzle body 23. The collar is in the form of a solid circular ring having a flat upper end 32 and lower conical surface 33. The side of the needle 22 is formed with flutes 37 to provide channels for passage of the fuel. Alternatively, the collar 31 may be formed with a slots or circular holes 40 to provide such channels.
IPC 8 full level
F02M 61/18 (2006.01); F02M 61/12 (2006.01); F02M 61/16 (2006.01); F02M 63/00 (2006.01); F02M 51/06 (2006.01); F02M 61/04 (2006.01)
CPC (source: EP)
F02M 47/027 (2013.01); F02M 61/042 (2013.01); F02M 61/12 (2013.01); F02M 61/1873 (2013.01); F02M 61/1893 (2013.01); F02M 2200/50 (2013.01)
Citation (search report)
- [X] DE 102005030868 A1 20070111 - BOSCH GMBH ROBERT [DE]
- [X] DE 102004060552 A1 20060622 - BOSCH GMBH ROBERT [DE] & US 2008296411 A1 20081204 - HEINZ RUDOLF [DE], et al
- [X] DE 9301992 U1 19940616 - BOSCH GMBH ROBERT [DE]
- [X] DE 102008012356 A1 20090910 - BOSCH GMBH ROBERT [DE]
- [X] DE 102007062792 A1 20090702 - BOSCH GMBH ROBERT [DE]
- [X] DE 19823939 A1 19991230 - SIEMENS AG [DE]
- [X] DE 19755057 A1 19990617 - BOSCH GMBH ROBERT [DE]
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)
DOCDB simple family (application)
EP 13166122 A 20130501