Prime-mover dynamo plants – Turbogenerators
Patent
1984-03-21
1986-12-16
Shoop, Jr., William M.
Prime-mover dynamo plants
Turbogenerators
290 1R, 290 53, 60398, 417334, F03B 1308
Patent
active
046299041
ABSTRACT:
A small-scale hydroelectric generator has a micro-hydro axial-flow turbine mounted in a lower end of a penstock, preferrably of the siphon type, through which water is diverted from an intake basin. The turbine comprises a stator section formed with an axial core providing an annular passageway having an outlet end in close proximity to a rotor of a coaxial adjacent rotor section. The blades of the rotor have a length equal to the internal radius of the passageway. A plurality of flaps are arranged in an expandable circle between the stator section and rotor. A float mechanism located in the intake basin follows the water level and controls the extended positions of the flaps reducing the water flow through the penstock in a predetermined relation to the water level. The annular passageway has fixed vanes directing the stream of water in a helical swirling motion of predetermined pitch to impinge upon the blades which are disposed to receive the stream at an optimum angle of 90.degree. . The generator is located remote from the turbine with a closed hydraulic system comprising a variable displacement pump located at and driven by the turbine and a hydraulic motor located at and driving the generator. The pump has a flow control driving the motor at a constant RPM at all acceptable load conditions placed on the generator.
REFERENCES:
patent: 4117676 (1978-10-01), Atencio
patent: 4182123 (1980-01-01), Ueda
patent: 4188788 (1980-02-01), Eller
patent: 4311410 (1982-01-01), Atencio
patent: 4364228 (1982-12-01), Eller
patent: 4437017 (1984-03-01), sterberg
patent: 4467216 (1984-08-01), Murphy
patent: 4476396 (1984-10-01), Calvert
Leiseca Jorge
Rojo, Jr. Agustin
Barnett Erwin M.
Ip Shik Luen Paul
Shoop Jr. William M.
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