Fluid sprinkling – spraying – and diffusing – Rigid fluid confining distributor – Orifice in separable disc or plate
Reexamination Certificate
2006-08-08
2006-08-08
Nguyen, Dinh Q. (Department: 3752)
Fluid sprinkling, spraying, and diffusing
Rigid fluid confining distributor
Orifice in separable disc or plate
C239S533200, C239S533120, C239S601000, C239S585100, C239S585400, C239S585500, C239S900000
Reexamination Certificate
active
07086615
ABSTRACT:
A fuel injector includes a seat, a movable member cooperating with the seat, and an orifice plate. The orifice disc includes a member having first and second generally parallel surfaces, and an orifice extending through the member between first and second generally planar surfaces of the member. The orifice is defined by a wall that couples the first and second surfaces. The wall includes first and second wall portions. The first wall portion is spaced from the first surface and extends substantially perpendicular to the first and second generally planar surfaces and about the longitudinal axis to define a transition perimeter. The second wall portion couples the first wall portion to the first surface to define a inlet perimeter on the first surface. The inlet perimeter includes a plurality of curved surfaces connecting the inlet perimeter and the transition perimeter, each of the plurality of curved surfaces being separated by adjacent curved surfaces by a line connecting the inlet and transition perimeters in a helical orientation with respect to the orifice axis.
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Nguyen Dinh Q.
Siemens VDO Automotive Corporation
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