Fluid sprinkling – spraying – and diffusing – Unitary injection nozzle and pump or accumulator plunger
Reexamination Certificate
2007-04-03
2007-04-03
Nguyen, Dinh Q. (Department: 3752)
Fluid sprinkling, spraying, and diffusing
Unitary injection nozzle and pump or accumulator plunger
C239S091000, C239S096000, C239S533200, C239S533300, C251S057000, C123S467000
Reexamination Certificate
active
11104747
ABSTRACT:
The present invention provides a fuel injection valve which moves a needle valve (10) via a viscous fluid and a piston (7) by having an actuator (9) move a cylinder (3). The fuel injection valve comprises a sealing member (27) for sealing a gap between the cylinder (3) and piston (7), and a linking hole (29) formed in the piston (7) for connecting two chambers (5, 6) to each other. The size and/or shape of the linking hole (29) is set such that when a force for moving the cylinder (3) or piston (7) at a lower speed than the driving speed of the actuator (9) is generated due to differential thermal expansion between members, the viscous fluid moves between the two chambers (5, 6) through the linking hole (29), and when a force for moving the cylinder (3) at a higher speed than the force generated by the differential thermal expansion is generated by the actuator (9), the viscous fluid cannot pass through the linking hole (29).
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Copy of Partial EPC Search Report for Serial No. EP 05 00 7671 dated Jul. 14, 2005.
Copy of EPC Search Report for Serial No. EP 05 00 7671 dated Sep. 16, 2005.
Isuzu Motors Limited
McCormick Paulding & Huber LLP
Nguyen Dinh Q.
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