Title:
噴射ノズル
Document Type and Number:
Japanese Patent JP4478153
Kind Code:
B2
Abstract:
An injection nozzle for an internal combustion engine has a valve member (10) with a seating line (112) defining a seat diameter, the seating line (112) being engageable with a seating surface (14) to control fuel injection by the nozzle, in use. The seating line is defined by an annular ridge (40, 44, 46), integrally formed with the valve needle (10), so as to reduce variations in the seat diameter which would otherwise arise at manufacture due to contact between the valve needle (10) and the seating surface (14) in regions other than at the seating line. The invention provides an advantage in manufacture as repeatability and consistency of the geometry, and in particular the effective seat diameter, of nozzle products is improved.
Inventors:
Lambert, Markham
Andrew, Rimmer
Norman mark
McClune, Michael
Andrew, Rimmer
Norman mark
McClune, Michael
Application Number:
JP2006530594A
Publication Date:
June 09, 2010
Filing Date:
October 06, 2004
Export Citation:
Assignee:
Delphi Technologies Incorporated
International Classes:
F02M61/18; F02M61/10
Domestic Patent References:
| JP29007656B1 | ||||
| JP2002535537A | ||||
| JP2001221135A | ||||
| JP4347362A |
Foreign References:
| US6565017 | ||||
| US6427932 |
Attorney, Agent or Firm:
Shoichi Okuyama
Arihara Koichi
Matsushima Tetsuo
Arihara Koichi
Matsushima Tetsuo