Appeal No. 97-3717 Page 9
Application No. 08/397,163
a coil spring 9 arranged to bias the moving body 6, and an
adjusting screw 11 threaded into the threaded upper section of
the central hole 1a of the stator iron core and adapted to
enable the spring load to be adjusted from the exterior.
Referring to Figure 2, the moving body 6 comprises an armature
6a, a rod 6b, a guide portion 6c having a disc-like
configuration, and a spherical valve body 6d designed to be
seated on the valve seat 5a of the valve guide 5. The
armature 6a faces in the casing 4 the lower end of the
stator iron core 1, the guide portion 6c being in slidable
contact with the inner peripheral surface of the center hole
5b of the valve guide 5. The moving body 6 is constantly
biased downwards by a coil spring 9, thereby seating the valve
body 6d
on the valve seat 5a of the valve guide 5. Only when the
electromagnetic coil 2 is excited to cause the moving body 6
to be attracted by the stator iron core 1 will the valve body
6d be able to separate from the valve seat 5a of the valve
guide 5, thereby causing fuel supplied through a fuel passage
13 to be ejected outwardly through the nozzle 8. Terakado
further discloses that the moving body 6 is made of a material
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Last modified: November 3, 2007