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Title: Magnus air turbine system

Abstract

A Magnus effect windmill for generating electrical power is disclosed. A large nacelle-hub mounted pivotally (in Azimuth) atop a support tower carries, in the example disclosed, three elongated barrels arranged in a vertical plane and extending symmetrically radially outwardly from the nacelle. The system provides spin energy to the barrels by internal mechanical coupling in the proper sense to cause, in reaction to an incident wind, a rotational torque of a predetermined sense on the hub. The rotating hub carries a set of power take-off rollers which ride on a stationary circular track in the nacelle. Shafts carry the power, given to the rollers by the wind driven hub, to a central collector or accumulator gear assembly whose output is divided to drive the spin mechanism for the Magnus barrels and the main electric generator. A planetary gear assembly is interposed between the collector gears and the spin mechanism functioning as a differential which is also connected to an auxiliary electric motor whereby power to the spin mechanism may selectively be provided by the motor. Generally, the motor provides initial spin to the barrels for start-up after which the motor is braked and the spin mechanism is driven as thoughmore » by a fixed ratio coupling from the rotor hub. During high wind or other unusual conditions, the auxiliary motor may be unbraked and excess spin power may be used to operate the motor as a generator of additional electrical output. Interposed between the collector gears of the rotating hub and the main electric generator is a novel variable speed drive-fly wheel system which is driven by the variable speed of the wind driven rotor and which, in turn, drives the main electric generator at constant angular speed. Reference is made to the complete specification for disclosure of other novel aspects of the system such as, for example, the aerodynamic and structural aspects of the novel Magnus barrels as well as novel gearing and other power coupling combination apparatus of the invention. A reading of the complete specification is recommended for a full understanding of the principles and features of the disclosed system.« less

Inventors:
 [1]
  1. (24204 Heritage La., Newhall, CA 91321)
Issue Date:
Research Org.:
Hanson; Thomas F. (24204 Heritage La., Newhall, CA 91321)
OSTI Identifier:
864455
Patent Number(s):
4366386
Assignee:
Hanson; Thomas F. (24204 Heritage La., Newhall, CA 91321) OAK
DOE Contract Number:  
FG03-80R950040
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
magnus; air; turbine; effect; windmill; generating; electrical; power; disclosed; nacelle-hub; mounted; pivotally; azimuth; atop; support; tower; carries; example; elongated; barrels; arranged; vertical; plane; extending; symmetrically; radially; outwardly; nacelle; provides; spin; energy; internal; mechanical; coupling; proper; sense; reaction; incident; wind; rotational; torque; predetermined; hub; rotating; set; take-off; rollers; ride; stationary; circular; track; shafts; carry; driven; central; collector; accumulator; gear; assembly; output; divided; drive; mechanism; main; electric; generator; planetary; interposed; gears; functioning; differential; connected; auxiliary; motor; whereby; selectively; provided; initial; start-up; braked; fixed; ratio; rotor; unusual; conditions; unbraked; excess; operate; additional; novel; variable; speed; drive-fly; wheel; drives; constant; angular; reference; complete; specification; disclosure; aspects; aerodynamic; structural; gearing; combination; apparatus; reading; recommended; understanding; principles; features; circular track; generating electric; gear assembly; electric generator; electrical power; electric motor; electrical output; radially outwardly; radially outward; planetary gear; variable speed; wind driven; support tower; mechanical coupling; rotor hub; generating electrical; mounted pivotally; constant angular; vertical plane; incident wind; air turbine; /290/416/

Citation Formats

Hanson, Thomas F. Magnus air turbine system. United States: N. p., 1982. Web.
Hanson, Thomas F. Magnus air turbine system. United States.
Hanson, Thomas F. Fri . "Magnus air turbine system". United States. https://www.osti.gov/servlets/purl/864455.
@article{osti_864455,
title = {Magnus air turbine system},
author = {Hanson, Thomas F.},
abstractNote = {A Magnus effect windmill for generating electrical power is disclosed. A large nacelle-hub mounted pivotally (in Azimuth) atop a support tower carries, in the example disclosed, three elongated barrels arranged in a vertical plane and extending symmetrically radially outwardly from the nacelle. The system provides spin energy to the barrels by internal mechanical coupling in the proper sense to cause, in reaction to an incident wind, a rotational torque of a predetermined sense on the hub. The rotating hub carries a set of power take-off rollers which ride on a stationary circular track in the nacelle. Shafts carry the power, given to the rollers by the wind driven hub, to a central collector or accumulator gear assembly whose output is divided to drive the spin mechanism for the Magnus barrels and the main electric generator. A planetary gear assembly is interposed between the collector gears and the spin mechanism functioning as a differential which is also connected to an auxiliary electric motor whereby power to the spin mechanism may selectively be provided by the motor. Generally, the motor provides initial spin to the barrels for start-up after which the motor is braked and the spin mechanism is driven as though by a fixed ratio coupling from the rotor hub. During high wind or other unusual conditions, the auxiliary motor may be unbraked and excess spin power may be used to operate the motor as a generator of additional electrical output. Interposed between the collector gears of the rotating hub and the main electric generator is a novel variable speed drive-fly wheel system which is driven by the variable speed of the wind driven rotor and which, in turn, drives the main electric generator at constant angular speed. Reference is made to the complete specification for disclosure of other novel aspects of the system such as, for example, the aerodynamic and structural aspects of the novel Magnus barrels as well as novel gearing and other power coupling combination apparatus of the invention. A reading of the complete specification is recommended for a full understanding of the principles and features of the disclosed system.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1982},
month = {1}
}

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