Internal-combustion engines – Combustion chamber means having fuel injection only – Using multiple injectors or injections
Reexamination Certificate
2007-05-22
2008-11-04
Cronin, Stephen K. (Department: 3747)
Internal-combustion engines
Combustion chamber means having fuel injection only
Using multiple injectors or injections
C239S533120, C239S558000
Reexamination Certificate
active
07444980
ABSTRACT:
A direct injection fuel injector includes a nozzle tip having a plurality of passages allowing fluid communication between an inner nozzle tip surface portion and an outer nozzle tip surface portion and directly into a combustion chamber of an internal combustion engine. A first group of the passages have inner surface apertures located substantially in a first common plane. A second group of the passages have inner surface apertures located substantially in at least a second common plane substantially parallel to the first common plane. The second group has more passages than the first group.
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Cavanagh Mark S.
Lawrence Keith E.
Urven, Jr. Roger L.
Castro Arnold
Caterpillar Inc.
Cronin Stephen K.
Finnegan Henderson Farabow Garrett & Dunner
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