Abstract: A faucet generator includes: a cylindrical body which has a water inflow port and a water outflow port, and in which a water supply channel is formed; a rotor vane which has rotor vane blades, and which is disposed in the water supply channel; a magnet which is rotatable integrally with the rotor vane; a coil in which an electromotive force is produced by rotation of the magnet; and a plurality of nozzles which eject water toward the rotor vane blades. The axial direction of the rotor vane is substantially parallel to the water supply channel. The nozzles change a direction of a water flow which is substantially parallel to the axial direction of the rotor vane, to eject water from a radially outward direction of the rotor vane blades to the rotor vane blades.

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.

Abstract: A water supply apparatus includes an apparatus body (6) disposed in a flow passage (14) for sucking water to an indoor facility and a power generation unit (23) installed in the apparatus body. Further, the power generation unit further comprises a rotating shaft (34) extended in a direction perpendicular to the water channel direction of the flow passage, an impeller (27) installed on the rotating shaft and rotated by a water flow, a magnet (43) rotated interlockingly with the impeller, and a coil (29) arranged oppositely to the magnet, wherein the impeller forms blades (38) in the radial outer direction and forms clearances (40) allowing water to pass to the inside of the blades. Since the clearances (40) are formed between the blades (38) and the rotating shaft (34), 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.