EP 1505342 A1 20050209 - A method of minimizing deposits in a fuel injector
Title (en)
A method of minimizing deposits in a fuel injector
Title (de)
Verfahren für die Reduzierung von Ablagerungen in einem Kraftstoffinjektor
Title (fr)
Procédé pour minimaliser les dépôts dans un injecteur de combustible
Publication
Application
Priority
GB 0318164 A 20030804
Abstract (en)
A fuel injector comprises a fuel flow passage about a central axis (2) of the fuel injector, the passage including a valve seat (3) inclined at a first angle to the central axis; and a needle orifice (6); wherein the passage further comprises a first volume between the valve seat and the needle orifice; and a first edge (9) between the valve seat and the first volume; wherein the first volume is chosen such that fuel flow remains substantially laminar as it passes over the first edge; the passage further comprising an annulus (10) at the base of the first volume, radially outwardly of the needle orifice, and a second edge (11) between the annulus and the needle orifice; wherein fluid passing over the second edge is caused to cavitate, such that deposits in the needle orifice are substantially removed. <IMAGE>
IPC 1-7
IPC 8 full level
F02M 61/18 (2006.01); F23D 11/38 (2006.01)
CPC (source: EP)
F02M 61/18 (2013.01); F02M 61/1806 (2013.01); F02M 61/1833 (2013.01); F02M 61/188 (2013.01); F23D 11/386 (2013.01); F23D 2900/00016 (2013.01); F23D 2900/31018 (2021.05); F23N 2235/28 (2020.01)
Citation (applicant)
- US 5921473 A 19990713 - ROMANN PETER [DE]
- US 4830286 A 19890516 - ASSLAENDER PETER [DE], et al
- US 5941208 A 19990824 - BIEMELT ANDREAS [DE], et al
- EP 1045202 A1 20001018 - UNITED TECHNOLOGIES CORP [US]
- US 6334434 B1 20020101 - IMOEHL WILLIAM JAMES [US], et al
Citation (search report)
- [XY] US 5921473 A 19990713 - ROMANN PETER [DE]
- [Y] US 6334434 B1 20020101 - IMOEHL WILLIAM JAMES [US], et al
- [X] US 4830286 A 19890516 - ASSLAENDER PETER [DE], et al
- [A] US 6322007 B1 20011127 - POTZ DETLEV [DE], et al
- [A] GB 2073954 A 19811021 - RECH SOC CIV D ETUDES
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 1505342 A1 20050209; EP 1505342 B1 20120307; GB 0318164 D0 20030903; GB 2404693 A 20050209; GB 2404693 B 20050622
DOCDB simple family (application)
EP 04017821 A 20040728; GB 0318164 A 20030804