Fluid sprinkling – spraying – and diffusing – Including valve means in flow line – Reciprocating
Reexamination Certificate
2007-01-18
2010-10-26
Gorman, Darren W (Department: 3752)
Fluid sprinkling, spraying, and diffusing
Including valve means in flow line
Reciprocating
C239S585100, C239S533600, C239S533900
Reexamination Certificate
active
07819344
ABSTRACT:
An injector used for an internal combustion engine includes a valve needle which closes a fuel passage by contacting a valve seat and opens the fuel passage by separating from the valve seat. A coil and a magnetic core are provided to drive the valve needle, and an anchor is held in a relatively displaceable state with respect to the valve needle. A first biasing device biases the valve needle in a direction opposite to a direction of a drive force, and a second biasing device biases the anchor in the direction of the drive force with a set load smaller than that of the first biasing device. A restricting feature restricts relative displacement of the anchor with respect to the valve needle in the direction of the drive force.
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Abe Motoyuki
Hayatani Masahiko
Ishikawa Tohru
Maekawa Noriyuki
Namaizawa Yasuo
Crowell & Moring LLP
Gorman Darren W
Hitachi , Ltd.
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