AU2012101632A4 - Noise, airflow and efficiency improvements for propeller fans, wind-turbines and wind-mills - Google Patents
Noise, airflow and efficiency improvements for propeller fans, wind-turbines and wind-mills Download PDFInfo
- Publication number
- AU2012101632A4 AU2012101632A4 AU2012101632A AU2012101632A AU2012101632A4 AU 2012101632 A4 AU2012101632 A4 AU 2012101632A4 AU 2012101632 A AU2012101632 A AU 2012101632A AU 2012101632 A AU2012101632 A AU 2012101632A AU 2012101632 A4 AU2012101632 A4 AU 2012101632A4
- Authority
- AU
- Australia
- Prior art keywords
- wind
- mills
- airflow
- fans
- turbines
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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Classifications
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- Y02E10/722—
Landscapes
- Wind Motors (AREA)
Abstract
Propeller Fans and Wind-mills Inventor :- Roger Charles Wilkinson Abstract This innovation applies to the design, construction and operation of Propeller Fans and Wind-mills, typically employed in ventilation fans, wind-turbines and wind-mills. The innovation combines several prior arts, processes and equipment arrangements in a manner not previously applied to ventilation, airflow, generator or turbine systems. In particular, this innovation provides significant increase in efficiency and decrease in sound generation, together with enhanced airflow characteristics and physical strength of fan and windmill blades. Page 1 of 1 ; Abstract
Description
Description of Invention This invention describes improvements to propeller fans and windmills and applies the prior arts of 'vortex spoiler' and 'end lift' characteristics to conventional propeller type fans and propeller type windmills and wind turbines, as already applied to wing-tips of some aircraft. The application of aero-foiled , upward-inclined extensions (or inclusions) to the outer tips of blades of conventional propeller fans and windmills, as evidenced on current Boeing aircraft wing designs, provide economies in propeller blade design and/or increased power and/or increased thrust from conventional propeller blades. The economies in blade design are provided by the 'lift' action of the aero-foiled , upward inclined extensions which support the outer end of the blades without significant energy penalties. Further, the airflow from such propeller fans, and on to such windmills, is more cylindrical in shape, compared to the hollow-cone airflow from convention propellers, resulting in superior discharge 'throw/thrust' for fans and smoother intake capture characteristics for windmills, respectively. In addition, the decrease in blade-tip vortex-shedding characteristics results in significant reduction of sounds emitted from such devices, especially at the blade-passing frequencies, thereby alleviating obnoxious sounds associated with conventional fans and wind-farm wind turbines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2012101632A AU2012101632A4 (en) | 2012-11-15 | 2012-11-15 | Noise, airflow and efficiency improvements for propeller fans, wind-turbines and wind-mills |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2012101632A AU2012101632A4 (en) | 2012-11-15 | 2012-11-15 | Noise, airflow and efficiency improvements for propeller fans, wind-turbines and wind-mills |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2012101632A4 true AU2012101632A4 (en) | 2012-12-13 |
Family
ID=47325008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2012101632A Expired AU2012101632A4 (en) | 2012-11-15 | 2012-11-15 | Noise, airflow and efficiency improvements for propeller fans, wind-turbines and wind-mills |
Country Status (1)
| Country | Link |
|---|---|
| AU (1) | AU2012101632A4 (en) |
-
2012
- 2012-11-15 AU AU2012101632A patent/AU2012101632A4/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AMFD | Amendment of filing date |
Effective date: 20121115 |
|
| FGI | Letters patent sealed or granted (innovation patent) | ||
| MK22 | Patent ceased section 143a(d), or expired - non payment of renewal fee or expiry |