Prime-mover dynamo plants – Electric control – Fluid-current motors
Reexamination Certificate
2007-08-07
2007-08-07
Schuberg, Darren (Department: 2834)
Prime-mover dynamo plants
Electric control
Fluid-current motors
C290S054000
Reexamination Certificate
active
10551214
ABSTRACT:
A water supply apparatus includes an apparatus body disposed in a flow passage for sucking water to an indoor facility and a power generation unit installed in the apparatus body. Further, the power generation unit further comprises a rotating shaft extended in a direction perpendicular to the water channel direction of the flow passage, and impeller installed on the rotating shaft and rotated by a water flow, a magnet rotated interlockingly with the impeller, and a coil arranged oppositely to the magnet, wherein the impeller forms blades in the radial outer direction and forms clearances allowing water to pass to the inside of the blades. Since the clearances are formed between the blades and the rotating shaft such a trouble that water flowing into the base ends of the blades obstructs the rotation of the impeller can be eliminated to increase a power generation amount by the power generation unit. In addition, since there is no need to expand the flow passage on the outside of the impeller to reduce the rotational resistance of the impeller, the size of the water supply apparatus can be reduced.
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Enomoto Kazuyuki
Fujimoto Hidefumi
Hatakeyama Makoto
Ishimaru Satoshi
Kudoh Yukihiro
Cuevas Pedro J.
Jordan and Hamburg LLP
Schuberg Darren
Toto Ltd.
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