Prime-mover dynamo plants – Fluid-current motors – Wind
Patent
1987-07-10
1988-07-12
Shoop, Jr., William M.
Prime-mover dynamo plants
Fluid-current motors
Wind
290 44, 416204R, F03D 106
Patent
active
047572116
ABSTRACT:
In order to construct windmills with high capacity the machinery need to be constructed and dimensioned in such a manner that any type of damage to the machinery is avoided. This is best ensured by a hub construction, which according to the invention comprises a hub shaft (17) which to the front is connected to the blades (11) and which immediately behind the hub is connected to a gear box (22).
Dangerous vibrations are hereby avoided, because the shaft (17) is primarily exposed merely to torsional forces.
By further constructing the hub around a funnel-shaped body (5, 6) which to the back is suspended in a machine housing (1) and which on the outside carries main bearings (7), and where the blades (11) rest on the outer ring of the main bearings (7), the main bearings will primarily be exposed to radial loads.
Finally, the braking capacity is increased when a brake system is attached to a quickly rotating exit shaft (23) on the gear box (22) just as generators (24, 30) are connected to this shaft (23) by means of a safety coupling (25). Hereby it becomes possible to replace worn or flawed parts without having to disassemble the entire machine, whereby maintenance of the mill becomes more economical.
REFERENCES:
patent: 1944239 (1934-01-01), Honnef
patent: 2058500 (1936-10-01), Plucker
patent: 2179885 (1939-11-01), Fumagalli
patent: 2417022 (1947-03-01), Stagg
patent: 4198572 (1980-04-01), Kant
patent: 4371346 (1983-02-01), Vidal
patent: 4585950 (1986-04-01), Lund
patent: 4611972 (1986-09-01), Andrae
patent: 4665332 (1987-05-01), Meir
Danregn Vidraft A/S
Duncanson Jr. W. E.
Shoop Jr. William M.
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