Fluid sprinkling – spraying – and diffusing – Fluid pressure responsive discharge modifier* or flow... – Fuel injector or burner
Reexamination Certificate
2011-01-18
2011-01-18
Boeckmann, Jason J (Department: 3752)
Fluid sprinkling, spraying, and diffusing
Fluid pressure responsive discharge modifier* or flow...
Fuel injector or burner
C239S102200, C239S533300, C239S533120, C239S584000
Reexamination Certificate
active
07871021
ABSTRACT:
The invention relates to a fuel injection valve for internal combustion engines, comprising a valve body (1), with a drilling (3) embodied therein and defined at the combustion chamber end thereof by a conical valve seat (18) from which at least one injection opening (20) leads. A hollow valve needle (8) is arranged in the drilling (3) such as to be displaced longitudinally, comprising a valve sealing surface (35) at the end thereof facing the valve seat (18). A first sealing region (31; 34) and a second sealing region (32; 46; 48) are embodied on the valve sealing surface (35), whereby, on contact of the hollow valve needle (8) on the valve seat (18), the first sealing region (31; 34) provides a seal upstream of the at least one injection opening (20) and the second sealing region (32; 46; 48) downstream thereof.
REFERENCES:
patent: 4382554 (1983-05-01), Hofmann
patent: 4407457 (1983-10-01), Seifert
patent: 6412712 (2002-07-01), Buckley
patent: 6811103 (2004-11-01), Gurich et al.
patent: 7159799 (2007-01-01), Cooke
patent: 7309030 (2007-12-01), Cooke
patent: 7404526 (2008-07-01), Cooke et al.
patent: 2003/0025006 (2003-02-01), Scarbrough et al.
patent: 2007/0012798 (2007-01-01), Cooke
patent: 0054612 (1982-06-01), None
patent: 0878623 (1998-11-01), None
patent: 1069308 (2001-01-01), None
patent: 1526274 (2005-04-01), None
patent: 02/06665 (2002-01-01), None
patent: 2004/044414 (2004-05-01), None
Boeckmann Jason J
Delphi Technologies Holding S.arl
Twomey Thomas N.
LandOfFree
Injection nozzle does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Injection nozzle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Injection nozzle will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2726496