P/00/011 2ase Regulation 3.2 AUSTRALIA Patents Act 1990 ORIGINAL COMPLETE SPECIFICATION STANDARD PATENT Invention Title: -e. - - - . - The following statement is a full description of this invention, Including the best method of erforming it known to me: [S Q-)Z fVktACCQ &GArrto- ........... ..... .............................. ................- 1 ........ ............ ................... 111 ..................................... .............. ...... .. ........................... ..... ........... S...................... .... .......... ................ - . .. , .............. -.. . ........ ............. .. = *.............. . . . . - ....-.- -.-.-.-. ,..-............... .. " .......... *...'. ............ I .................. .11.1 ........................ * 1*****..."...*............... I ........ .. . . . .. . .. . . . . ................. e 6 P= .eme m . . ... 9ge . ...... . .......*. ... *.-.. . . ' ... I= = . .... ... 6 ..... .. ... ... .. ..... .. . . . . . .. .. .. .... ... ...... .. .... ....... I ................ .... .. .. ................................. . *.... .. ......... . e ----------- ......................1. .....................I........... ....1........................................ ......... ...... .... 1- ..... .. ................. .... ........... ..... I.............. ........... I................. ..... 1........... ........ ... - ----------.... .......*.** .' ... 6 . .... ..................B............. ........................... .. .. . ............................ ........ ...... . .. .. ... .. ... .. . .... ... . ... - .1.1 - ... ... .... . .... 4 . =. .. ". ....... ........ I .. ... ... . .. ......6- .. .. . 1.1" 1"1 "** .IRdB9 ............... . . ......-- Be.......... -- -- - -- ................ .... ........ ..... ........ .. ........................................... ............. .............. '...... ....... "".... - ... "...''4 .. ............ ....."......."4......... ..... - .... IE .. .. . .. .. . .. ....... . . ........ "..............4......."..
Page. 1 Complete Specification for Invention titled Improved Rotary Turbine Device " The following statement is a full description of this invention, including the best method of performing it known to me: Prior Art. Rotary Turbine Devices can be used with liquids or gasses, and although this specification deals with wind turbines, it is not restricted to just wind energy. Rotary wind powered devices or more commonly called vertical axis wind turbines are commonly used as Rotary Ventilators, Rotary Turbine Ventilators, and even as Wind Generators, but there poor performance and torque generated has limited such devices to applications which require minimum torque for the area exposed to the wind. The reason for there poor efficiency is due to the positioning and angle of the blade or blades, and the small segment of the power stroke. The blades are driven by the wind for Approximately 180 degrees then for the remainder of the turn, 180 degrees, the blade is effectively being driven, and using up energy to over come wind resistance. Unlike a radial propeller or sail device, commonly called a horizontal axis wind turbine, which has all its blades facing the wind at the same time, with all the blades producing power for 360 degrees or one turn. The advantages of a Rotary wind powered device is its simplicity, as there are no mechanical means required to face the blades into the wind, or follow changes in the wind direction. Unlike the radial propeller ( wind generator) or sail device ( wind mill ), which must be mechanically rotated to keep the blades or sails facing into the direction of the wind. Such devices also require a means to feather, or reduce there efficiency in strong winds, or they can achieve speeds beyond there mechanical and structural limits, causing them to Page. 2. self destruct. Machines of this type also require a large flat surface area facing the direction of the wind, for the blades to rotate in, and operate best in clean air, so the rotating blades are held off the ground as in a wind mill or current wind generators, such devices are often considered as having an unacceptable visual appearance on the local environment, as they are readily seen from a long distance away. Because the outer propeller or sail tips travel at very high speeds they create a lot of noise, which can confine there use to away from populated areas. The object of this invention is to provide a rotary wind powered device of the vertical shaft wind turbine type which is driven by the wind for the full 360 degrees or one turn of the shaft, and by the use of a wind shield and two independent wind scoops fitted above the openings in the top cover, to use the wind to drive the turbine blades when they are rotating into the direction of the wind. This will mean that the turbine blades are driven by the wind for the full 360 degrees or one turn of the shaft, and are not consuming power to move into the wind. This Improved Rotary Wind Powered Device will also be suitable for use on an electric vehicle, either mounted on the roof or in the front section of the vehicle- It will have the advantage of having the wind shield, allowed to rotate to find the direction of the strongest wind. The wind scoops are positioned to collect the clean air and then to blow the collected air down on to the turbine blades, so as to drive them in the same direction of rotation as the wind. The wind shield can be used to feather the on coming wind by simply rotating the wind shield, with the air scoops attached, so that less of the oncoming wind can act on the turbine blades, reducing there speed and torque generated. The front of the wind scoops are mounted in front of Page.3 the center line of the turbine blades so as to reduce the amount of mechanical effort needed to control the wind scoops and wind shield facing the desired direction. This type of wind turbine does not require the large diameter sweep of propeller blades, and does not have the very high surface speeds of the propeller tips, which creates lots of noise, the base of the turbine blades has a much smaller diameter, and the turbine blades rely on surface area, more than propeller tip speeds. In the Drawings. Fig.1. Shows the cross section view of a wind turbine, fitted with a generator, with two wind scoops fitted above the rotor, so the wind which would normally pass over the wind turbine can be deflected on to the turbine blades. Fig.2. Shows the plan view of a wind turbine, and the positioning of the two wind scoops and the openings in the top cover as in fig .1. Fig 3. Shows the side view of the two upper air scoops, illustrated in fig. 1. Fig 4. Shows the plan view of the two independent air scoops with the holes in the top cover as in fig. 1 Fig.5. Shows the side view of the wind shield, illustrated in fig.1. Fig.6. Shows the plan view of the wind shield and the openings in the top cover, illustrated in fig.1. Fig.7. Shows the side view of the wind turbine rotor, illustrated in fig.1, Fig.8. Shows the plan view of the wind turbine rotor, illustrated in fig1 Fig.9. Shows the plan view of the wind turbine of a different embodiment that does not form part of the invention with the upper scoop directing the air through an opening in the wind shield.
Page.4. Fig.10. Shows the side view of the wind turbine of a different embodiment that does not form part of the invention with the upper scoop directing the air through an opening in the wind shield. Fig.11. Shows the plan view of a wind turbine of a different embodiment that does not form part of the invention with a wind scoop fitted on the sides of the wind shield. Fig.12. Shows a side view of a wind turbine of a different embodiment that does not form part of the invention with a wind scoop fitted on the side of the wind shield. Fig. 13. Shows the Plan view of a wind turbine of a different embodiment that does not form part of the invention with an upper wind scoop fitted. Fig.14. Shows the Side view of a wind turbine of a different embodiment that does not form part of the invention with an upper wind scoop fitted. Fig. 15. Shows a wind turbine fitted to a boat. Fig. 16. Shows a vehicle with the Improved Rotary Wind Powered Device fitted with a generator mounted on the roof, Fig. 17. Shows a vehicle with the Improved Rotary Wind powered Device fitted with a generator mounted behind the grill or lower front of the vehicle. Description of this invention. This Invention in its simplest form, consists of referring to Fig.1. & 2. a rotary wind powered device, which has a round base 2., which has a center shaft 4. on bearings at its center. There are turbine blades 1. radiating from the center of Page.5. the base 2. The turbine blades 1. are fixed to the bottom rotating base 2. Fitted above the top of the turbine blades 1. is a flat section of sheet material called a top cover 5. with two independent aero dynamically shaped holes 11,and 12, to correspond with the two individual air scoops 7. fitted above, the front leading edge 10 of the two individual scoops 7. form a straight line going across the width of the top cover 5. and is positioned in front of the center axis 4. to balance the wind forces, keeping the front leading edge of the wind shield 6. positioned at 0 degree if the direction of the wind is 0 degrees, this top cover 5. is independent of the bottom base 2., and can rotate independently to the base 2. to direct the air in the above scoops 7. through the openings 11. & 12. in the top cover 5. to act on the blades 1. or sails which are not being acted upon by the wind, this top cover 5. has a wind shield 6. fitted to prevent the on coming wind directly acting upon the returning turbine blades 1. This has the effect of deflecting or changing the direction of the wind, on to the top of the edges of the turbine blades 1. passing between the wind shield 6. and the base of the turbine blades 2., so it continues to drive the turbine blades 1., even when it normallywould not be acted upon. The wind acts on the curved turbine blades 1 on one side of its rotation to provide a power stroke, but on the returning side the inner faces of the air scoops 9. directs the wind down on to the curved surface at the back of the turbine blades 1., which forces the returning turbine blades 1. in the same direction as the power stroke. In Fig.1. the wind powers the turbine blades from 0 degrees to 120 degrees, the number 11 opening from 120 degrees to 240 degrees, and number 12 opening from 240 degrees to 360 degrees. The air scoops 7. would also have a frontal opening area to optimize performance as if the wind was directly coming on to the turbine blades 1. The inner face of the air scoops Page.6. 9- are arranged to have the incoming air channeled to provide a blast of air to act upon the turbine blades 1., continuing to drive them in the same direction of rotation, effectively providing three power strokes for one revolution. It may be desirable to allow the air to escape between the bottom of the wind shield 6. and the outer edge of the turbine base 2, and to fit a directional fin 8. to the outside back of the air scoops 7.to ensure that the opening 10. is facing directly into the wind. It will depend on the application of this improved rotary wind powered device. Fig.3, Fig.5, Fig'6, Fig.7 and Fig.8. are showing views of the components that go together to make up Fig.1 and Fig.2 the dimensions and shape of this Improved Rotary Turbine Machine will be to suit application and performance requirements. In another embodiment that does not form part of the invention fitted to this rotary wind powered device Fig.1 can be a mechanical system, or magnetic devise 29. which when the rotation speed of the turbine blades 1. obtain a predetermined rotational speed, the device 29. will cut in, or be turned on to turn the air scoops 7. to face away from the direction of the wind, which will reduce the amount of air that can act on the turbine blades 1. reducing there efficiency. The device 29. described above, could be to fit with permanent magnets 29. on the perimeter of the directional scoops 8., so when a predetermined speed is reached, or a predetermined electric current is generated, an electric coil 28. mounted on the fixed, stationary mounting base 30. will be switched on to act with the permanent magnets 29 in the perimeter of the base for the turbine blades 2. and act as a braking system, which will prevent the rotational speed exceeding a desirable level, or if a generator 3. is fitted in the center of the base of the turbine blades 2. it could be electronically controlled to act as a braking system. A top cover tail or direction fin 8. is shown in Fig.1 which is there to have Page.7. the upper air scoops 7. facing the direction of the wind, the central portion of the turbine blades 1. provides only a small amount of the power stroke, and that the further away from the center provides a greater mechanical advantage, for this reason a generator 3- could be incorporated into the center of the base 2., with very little loss of efficiency of the rotary wind powered device, but with a saving in weight and area, to produce a compact wind generator. In Fig.15. it could also by fixing the center shaft 4. to the base 30. , and mounting it in bearings provide a power take off shaft 23., which could be used for whatever use was required. Such a system could be used on a sailing ship Fig.15, by replacing the mast and sails, and fitting a rotary wind powered device, and connecting the power take off shaft 23 through a gearbox 22. connected to a propeller shaft 21. to an underwater propeller 20., the sailing ship could be powered in any direction, regardless of the direction of the wind. A rotary wind powered device would be smaller, have an overall smaller wind sail or propeller area, and be visually pleasing on the environment, and because of the reduced size, particularly the outside diameter, the surface speeds on the turbine blades 1. would reduce noise.