Title:
ROLLER DRIVEN VERTICAL AXIS WIND TURBINE
Document Type and Number:
WIPO Patent Application WO/2015/079457
Kind Code:
A3
Abstract:
The present invention relates to a wind turbine for generating electricity by using unique way of transmission mechanism. The transmission mechanism is derived from reverse principle of cold rolling mechanism. In cold rolling: Rolling stock/strip is moved between oppositely rotating rollers for changing shape. Here, the oppositely rotating rollers are act like a "driving" or drive means, which is the source of action or movement. The rolling stock is act like a driven means is turned or moved by the drive means (Refer fig 1). The present invention, a circular ring/main driving means is moved between oppositely rotating rollers for power transmission from disc of rotor assembly to rollers of generator assembly. Here, disc is act like a "driving" or drive means, which is the source of action or movement. The oppositely rotating rollers are having tapered shape act like a driven means is rotated or moved by the disc/drive means which is also having tapered shape. (Refer fig 2,2a and 3a,b &4a,b). The above tapered rollers and main driving means engaged together with (experimentally obtained) favourable contact pressure (Refer fig 5) to achieve optimum mechanical power transmission. Further, the flexible connection between main driving means (D) and rotor assembly configured to shift the Centre of Gravity of the turbine to a lower point, thus obtaining better turbine dynamic/static stability. The said flexible connection is configured to structurally isolate the generators from the rotor, thus transmitting only the torque between the rotor and the motor, obtaining better overall dynamic/static stability.
Inventors:
VALAGAM RAJAGOPAL RAGHUNATHAN (IN)
Application Number:
PCT/IN2014/000736
Publication Date:
August 27, 2015
Filing Date:
November 27, 2014
Export Citation:
Assignee:
VALAGAM RAJAGOPAL RAGHUNATHAN (IN)
International Classes:
F03D9/00
Domestic Patent References:
| WO2009106924A2 | 2009-09-03 | |||
| WO2014026238A1 | 2014-02-20 |
Foreign References:
| US5982046A | 1999-11-09 | |||
| EP0276904A1 | 1988-08-03 |
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