Improved vertical axis windmill

Abstract

The invention comprises a mast (1 ) with outer three rails (2), fixed in foundation (7). Mast has a travelling pipe (12) with internal sets of castors (15) for rails, bearings / (15), A C generators (24), rope cable holes (14) and wind deflector. A cylindrical drum (16) with plurality of blades (20) fits bearings (15). Bottom of drum has a generator gear (23) running A C generator (24). Mast has an electronic control (6) with a rope module, its rope drum (9), its motor (8) & wind sensor, the electric module with generator A C current output of volt, phase& communicating safety module with lamps. The drum has top (19) bottom (22) additional blade sets on different radii for more energy! The low wind model has deflectors (26, 28) directing wind to drum blades rotating generator for more electricity. In storms, electronic control lowers drum blades safely.

Description

[0001] IMPROVED VERTICAL AXIS WINDMILL

[0002] Technical Field:

[0003] The invention relates to a novel vertical axis generator for low to high winds electricity generator to use wind sites in lndia& all continents to increase electricity for reducing global warming. Ours is new drum based blades, travelling on a mast for low velocity or higher velocity winds - drum is lowered in storms& for repairs, efficient too!

[0004] State of Art:

[0005] All countries want to invest in wind green energy with safety for birds, lower cost, more efficient than existing vertical axis propellers or vertical axis types. Horizontal axis with propellers or combination of vertical axis type Darrius, Savonius, helical has not worked in all countries despite huge MNC energy & renewable companies making generators. 7500kms of Indian seacoast, all coastal island & countries eternal free wind energy is running unused.

[0006] After long basic, advanced research on defects & failure of all Horizontal Vertical axis wind energy devices of all countries MNC huge companies, we have invented this new wind energy device In ours, we have a cost effective new different wind energy technology to help humanity reduce global fossil fuel global warming, saving taxes, air pollution, health too. Ours is slow to fast wind velocity rotating drum turbine with matched fast rpm A.C generator- large teeth (numbers)drum generator gear ring rotating A.C generator rotor shaft few gears teeth is new! We had used smoke flow studies to spot defects of all existing wind devices. More winds pass through propeller, vertical axis windmills is large-but minimal in our drum cylinder blades. Wind hitting blades was also studied with smoke flow for aerodynamics as done for vehicles, planes.

[0007] Technical Problem

[0008] Harvesting wind energy involves 1 area of blades, its powering vs breaking halves efficiency (wind push / resistance effect on all blades) 2 wind speeds 3 linear to rotation force change.4generator limits.5. Reducing start & running inertia by bearings. 6. Safety for long life. Strong long propellers is easy to make than wide horizontal blades. Hence propellers are main windmill types despite defects. We have a high or low wind models with optimal area, drums rotating on a travel pipe bearings, drums travelling on a mast- all new!

[0009] The defects in the existing horizontal axis nacelle-propeller type river kinetic electricity generators in use are:

[0010] 1. Against Gravity rotation of propeller type blades wastes energy.

[0011] 2. Only blade area is actively transferring energy- huge wind flows between blades-no work!

[0012] 3. Balancing propellers in motion, yaw controls etc problems are known. .

[0013] 4. Huge weight of blades & its inertia is more

[0014] 5. Propeller blade powering force is little more than braking forces.

[0015] All existing vertical axis Darrius, Savonius, helix, vortex in combination also have defects;

[0016] 1 . More wind flows through between blades is not effective energy conversion.

[0017] 2. Wind seasonal still to storm changes aren’t easy to adjust.

[0018] 3. Low wind velocity kinetic energy conversion is inefficient.

[0019] 4. Powering & braking halves difference is small

[0020] Winds are a big new energy opportunity but has following unsolved features:

[0021] 1 . Low wind velocity conversion to torque.

[0022] 2. Seasonal wind level changes, safety in gales, tornadoes.

[0023] 3. How much is good wind velocity needed to run turbine?

[0024] 4. Blade powering & braking halves can we modify?

[0025] Winds are a new opportunity: It is a green energy- no pollution!

[0026] Solution to Problem

[0027] Our new wind energy convertor is an easier, new, novel, never before solution:

[0028] 1 . New mast based up & down traveling drum turbines for variable wind levels.

[0029] 2. In storm, drum generator is pulled down to earth level - safe turbine.

[0030] 3. There is no wind eddies flowing through our cylindrical drum body turbine.

[0031] 4. The blades on drum has baffles, holes to collect extra low wind energy& to rotate turbine. 5. A deflector augments wind velocity for more power conversion in low winds.

[0032] 6. Powering blades is more than braking force on blades in ours!

[0033] New invented steps in engineering in our new novel wind energy generator after research are:

[0034] 1. Reducing wind pass through the turbine, making all wind flow in one direction hitting multiple blades- new more wind kinetic energy transfer & rotation of turbine!

[0035] 2. Ours is vertical axis- no gravity loss of power.

[0036] 3. A.C Generator is at bottom level engaging drum gear ring for more electricity.

[0037] 6. Electronic control for working & safety of turbine, electricity output to grid!

[0038] Accordingly the object of the invention is to identify the solutions for problem associated with good electricity for humanity from all our earth’s perennial wind of land, oceans& sea shore -all accessible, cheaper than fossil, nuclear energies. This an investment for good green non-polluting renewable energy ease for long use. Propeller, vertical axis- Darrius, Savonius, helix, vortex models are not priority as they are defective, not same as ours- citing a volume of past propeller, Darrius , Savonius, vortex , helix are legally not a priority as all these are different in structure, working, function, working and electricity delivered.

[0039] An extensive search has been carried out using the Internet and related patent specifications were studied for cylindrical drum based blades travelling on mast windmills. Since the present invention is radically different, in using the new mast travelling drum based blades with wind deflector, the inventors are unable to site any patent specification out of the available databases. Search of the USPTO, European patent offices for drum+ travelling pipe+ drum cylinder with curved surface blades+ added top& bottom different radii blades has no results. Others, known literature, generators and renewable energy companies’ literature also do not reveal machine like ours. We are not able to cite prior art novel mast traveling blade on cylindrical drum turbines with wind deflectors of near related structure. Some search results:

[0040] WO201 6080851 A1 - KAJDA ZDZISLAW -“Drum vertical axis wind turbine”. Describes a rotor with blades and a rotary diaphragm there is a rotary diaphragm, equipped with rotating arms- no mast, travelling pipe, drum different, air passes through it- not mast travelling drum blade, ropes as in ours!

[0041] US6740989B2 — John Rowe -Vertical axis Wind Turbine is a vertical-axis turbine with an annular array of stator vanes around a central rotor; the stator vanes redirect and compress airflow into flow channels feeding the rotor- no mast travelling drum blade, ropes as in ours!

[0042] US8961103 — John George Wolff- Vertical axis wind turbine with axial flow rotor describes an “omni-directional vertical axis wind turbine” with a shroud enclosing the rotor, cylindrical stacks, guiding vanes, and controlled airflow- not mast travelling drum blade, ropes as ours! US10724502B2 — Christopher T. Moore Vertical axis wind turbine apparatus and system a more recent vertical-axis wind turbine with a blade assembly and a scoop-like blade geometry though not strictly “drum,”-- not mast travelling drum blade, ropes as in ours!

[0043] US 7,758,299 B1 WINDTURBINE -ASSEMBLY FRANK Jarcki is a drum with open top, bottom, with open blades on drum. In ours drum is with added top, bottom added blades, no wind pass through & not mast travelling drum blade, ropes as in ours!

[0044] US8829704B2Wind turbine generator and motor Charles Grigg is tear drop sectional vanes on cylinder- not like our aerodynamic drum with added top& bottom blade sets with a mast travel.

[0045] Ours is not shop floor improvements as renewable global companies don’t use our windmill type.

[0046] Summary of the invention:

[0047] The new wind generator has a novel new weather-proof cylindrical drum with many blades on the circumference. Each blade has vertical, horizontal supporting reinforcing ridges to with stand long years of rotations electricity generation. There are upper& lower additional set of smaller blades on different radii on the drum for more energy-this is new for wind mills! Blades rotate drum, its generator. The drum has a central cavity pipe for attaching to bearings .The drum is fitted on a travelling pipe of mast. The mast is made of vertical pipe with outside three or more rails of needed height. The mast has a travelling pipe with inner castors fitting S rolling on mast rails. .The travel pipe has on its bottom edge A.C generators that fit on drum bottom generator belt- pulleys / gear ring teeth. .The travel pipe has lifting rope cables wound on a cable drum run by an electrical motor housed in the bottom of mast in electronic control & drum rope cable housing. An electronic control, controls the rope cable drum, traveling pipe & its drum turbine for position for maximal electricity output. The electronic control also receives A.C current from drum turbine A.C generators and corrects for phase, volt and sends cable to land electrical grid for nation use. .Electronic control has a wind sensor that activates the rope cable drum motor for lowering / raising cables to position the travelling pipe & its cylindrical drum turbine for years of wind electricity. Device is useful for all wind sites for green renewable no pollution electricity to cut global warming.

[0048] Statement of Drawings:

[0049] These and other objects and features of the invention will become more apparent upon perusal of following description taken in conjunction with accompanying drawings wherein:

[0050] Figure 1 shows the high wind model with mast, cylindrical drum, blades and rope cables.

[0051] Figure 2 shows mast, it’s the three rails.

[0052] Figure 3 shows the shows the travelling pipe with, rope holes, castors & generator.

[0053] Figure 4. shoes electronic control with rope cable drum, electrical, warning modules.

[0054] Figure 5 shows the drum parts, with blades, top, bottom extra blades.

[0055] Figure 6 shows low wind model with deflector sets, lengthy drum blades.

[0056] Figure 7 shows inside of the drum- inner cavity pipe, radial arms to drum body.

[0057] Figures shows the rope drum, its motor, control box.

[0058] Figure9 shows wind flow forces on our blades without deflector.

[0059] Figure 10 shows wind action on propeller& existing vertical axis generators. DESCRIPTION OF PREFERRED EMBODIMENTS

[0060] The following specification describes salient features of invention, the method of construction, the method of use and the advantages of the novel invention.

[0061] The novel device has a novel cylindrical drum with new different blades on its body with an inner bearings mounted on a travelling pipe with pipe’s inner surface rollers assembled on a mast with rails for travelling pipe. The mast is anchored on earth / buildings.

[0062] The existing vertical axis (Savonis, Darrius, helix, vortex or combinations) and horizontal axis propeller type three bladed aren’t proven efficient & have not been improved for long. The object of the invention is to overcome the inherent defects of all existing vertical axis & horizontal axis propeller types in use and cost. To this end, the new invention is addressed. Our moving wind generator is better, easy to use, maintain, saving birds& money, pollution, health too. Ours is not a shop floor improvement but needed a long research (smoke flow study of windmills) on new different thinking with a new novel drum with many blades to trap wind and rotate the drum with its A.C generators on the bearings of the travelling pipe which can’t rotate, but move up & down the mast that is fixed in earth / buildings. The low velocity wind easily rotates drum turbine on its bearings. It is non-obvious and new as all MNC generators, renewable energy companies in all countries didn’t solve this for long felt need for wind energy in all continents. Ours is not shop floor improvement as MNC energy company’s shop floor engineers& technicians didn’t create one like ours. There is novelty, new parts, better result- more electricity.

[0063] The new invention integers are:

[0064] 1 . A cylindrical drum blades to trap the maximal velocity of moving wind.

[0065] 2. Plurality of blades on cylindrical drum - contoured to trap, convert low wind velocity force into rotation of drum for electricity generation.

[0066] 3. Drum is mounted on a travelling pipe outer surface mounted bearings, the travelling pipe itself not rotating.

[0067] 4. The travelling pipe has sets of inner castors mounted & rolling on rails of the mast tower for adjustment for various wind levels. 5. The travelling pipe has rope cables rolled on a cable drum run by a cable drum motor fixed inside of mast.

[0068] 6. The mast tower has an electronic control that moves the drum on mast, controls output generator current, switches on safety lights, travelling pipe up& down motor control. We have used common known simple names for parts for public understanding. We have made it simple, simplification is also invention. Our combination of parts is new- not a shop floor improvement, needed research on wind flow, blades design!

[0069] These inventive parts / steps are new, not found in any existing wind global generators, past patent records. The new wind energy is the need of the hour for all countries. The novel invention according to invention is better because it is compact, easy to fix and use by workers. The invention is based on new engineering with inventive steps after study of wind flow in seasons. We need to convert linear winds to rotating torque for generator use.

[0070] The new inventive steps are1. A cylindrical drum based wind surface for maximal torque.2 Drum blades transfer of wind flow into more torque. 3The drum has bushes in small model or bearing for larger generators.4. Bush\ bearing is fixed on outside of a travelling pipe which doesn’t rotate but moves up& down the mast for variable wind levels.5. The traveling pipe has inner castors that match & roll on rails of mast. 6 An electronic control receives current from drum generators, refines it to needed volt phase output, wind sensor& cable drum match to generate more electricity.

[0071] The device comprises a mast pipe tower 1 Fig 1 , Fig6, with three or more rails 2 forming a strong tower mast. The tower below has an electrical rope motor 8 with a rope cable drum 9 with wound cables 10 three in number for three rails we have shown in figures. Pulleys 11 in mast top help rope pull travel pipe. Huge wider towers can have more rails, more rope cables. In home models, ropes drum motor can be eliminated with manual elevation, or lowering.

[0072] An electronic control 6 with needed electronics has electrical, travelling pipe& data modules. The electrical module of control box 6 Figi , Fig.4 has input electrical cables32 from A.C generators24, refines current input to needed output volt& phase supply through water proof cable 33 to feed land grid. The travelling pipe control module comprises of a wind sensor 5 sending to control circuit for pulling up or lowering travelling pipe with its, generators by controlling the rope motor 8 to wind / unwind the rope cable drum 9. The data module of electronic control box 6 has data, internet, diagnostic and alarm, communicating software.

[0073] The mast rails has a travelling pipe12, Figi , Fig 3with inner surface castors 13 running on rails2. Two or more sets of castors on top, middle or bottom can be used. In figure two sets in upper, lower are shown. Castors can have springs (not shown) for silent roll on rails.

[0074] The outer surface of the travelling pipe has a deflector supports 27with a vertical deflector 26 to direct moving wind on to drum blades20. Fig 6 shows the deflector effect. The wind strikes the deflector, then many drum blades for torque. The long arrow 37 on side of wind flow is shown in Fig6, fig 9. The wind hits more drum turbine blades for more energy torque. This deflector is new novel for low wind generators Fig 6. Another deflector28 with its support arm 29 attached to travelling pipe is on opposite side of deflector26. Deflector 28 has a funnelling part 30( collect winds& passes back) and a channelizing part 31 to direct low winds37 Fig 6 to hit side & back drum blades in home models, in metros with wind turbulence between buildings. Wind powering blades are more than breaking blades in ours!

[0075] Both deflectors can be arranged on a rotating motorised rings on travelling pipe outside surface instead of welding on travel pipe, connected to wind sensor direction, and rotated to all wind directions for more electricity. This is not illustrated. The motor fixed to travelling pipe with gears on its rotor, moves a geared moving ring with two deflectors sets to face wind.

[0076] In Fig 10 shows wind flow in horizontal axis propellers, vertical axis type - huge wind pass through between blades without energy conversion & creating eddies that adds inefficiencies. Ours is a better wind harvester with less wind pass through front surface & blades trap more wind & rotates generator for efficiency. Deflectors in low wind models fig 6 allows wind to hit deflector 26 & then drum blades. The other funnelling deflector 28 also sends winds into channelizing back part to hit the side & back blades for more electricity!

[0077] The travelling pipe has on outer surface Fig 3. two or more bearings15 in larger models, bushes in small models bushes (not shown). Bearings ball / roller etc types are weather proof for needed stress & strength for years of rotation. It can be steel, brass or plastics in small models too.

[0078] The cylindrical drum 16 Fig.1 Fig 5, Fig 6, Fig7with a series of -blades 20 on its circumference on the curved cylinder surface is the turbine. The Cylindrical drum is made of engineered plastics / metal steel, composites. The drum has inner central cavity pipe 17for fit on travel pipe bearings / bush 15. Sets of radial arms 34 Fig 7 from inner cavity pipe to inside of drum form sturdy support. The outer surface of drum has blades 16 with holes 21 through which wind escapes adding torque. Large size blades may have slots. The back of blades may have vertical, horizontal support ridges (not shown). The drum rotates on travelling pipe bearings 15.

[0079] Drum has a cylindrical part with blades projecting out. In low windy areas small baffles, holes when hit by winds, transfer torque belter than a smooth blade. Blades can be 20%-30% as the drum radius.

[0080] Top of drum has a different set of blades 19 Fig 1 , Fig 6 on different radii. Bottom of drum has another set of blades 22. These two top, bottom additional new sets help in easy start of rotation, adds more torque- of value in low winds models. In high wind models, these sets improve aerodynamic stream lined - no turbulence effect. A cover 18 fills gap between top additional blade19 and cavity pipe17 to prevent dust, wind eddies& adds aerodynamics. It is made of plastics, composites or fibre glass like the drum.

[0081] Bottom of drum has a circular generator gear ring 23 Fig 1 with gear teeth. A.C generators 24 with a rotor shaft with few gear teeth match& run on drum gear 23 teeth. As drum rotates, generator 24 rotor rotates with electricity generation, feeds through rated capacity electrical cable 32 Fig 3 to electronic control current part module6 Fig 4, for voltage& phase correction. The generator has a mount support 25 to fix on the travelling pipe. Two or more generators on the generator gear ring balances the drum turbine instead of one for drum easy rotation in wind

[0082] Figure 9 shows wind action on our new drum blades. Winds hit front of drum blades, rotates it, no wind pass through! Bearings allow drum & its generator rotation for electricity. Top & bottom sets of blades 19,22 in different radii help in easy start from no wind to windy time, adds more torque. Top & bottom surfaces are now stream lined- no flow of winds into drum cavity- helps in smooth drum& generator rotation! As wind blows powering blades are more than braking blades!

[0083] Figure 10 shows wind action on existing propeller, vertical axis windmills. More wind blows through between blades - lost energy & efficiency. This is low in ours!

[0084] To use, the mast can be fixed on earth foundation?. Mast is built to needed height. The drum bladed turbine set can be assembled on travelling pipe 12 and travelling pipe, its castors13 slid on rails2 of mast, the travelling pipe rope cables 10 fixed to mast top rope holes14, other end wound on cable drum 9 with its electrical motor8 along with electronic control 6 already connected to generators22 proper, weather proof cable33 for link to nation electric grid.. As wind hits cylindrical drum blades, the drum generator gear ring rotates the A.C generator 24 that feeds electrical cable32 to electronic control 6 for modification of phase, voltage and fed to land grid network. As wind level varies the travelling pipe module of electronic control 6 with its wind sensor raises to top, in storms can come down for blades protection. Series of generators can be a grid serving all towns.

[0085] The device can be modified! Fluorescent reflecting strips can be pasted on mast all sides for warning in day, night. Mast can be made of steel angles with cross steel support for strong years of use with water / weather proof coating for years of safe use. Travelling pipe, drums can be made of weather proof aluminium, engineered plastics or composites. Wind sensing is by vanes, anemometers, digital sensors connected to electronic control to run rope cable drum motor in mast top / bottom for variable wind speed.

[0086] To choose generator for a site- site wind velocity data, extractable energy decides the tower mast, travelling pipe, drum its A.C generator features are finalised& assembled. As wind flows, electricity from rotating drums generator feed the electrical grid for use.

[0087] Brakes on bottom of drum turbine can stop rotation for repair / maintenance, not illustrated.

[0088] The device may be modified. Drum may be made as a cylinder, Fig 7 with radial supports 34 between inner cavity pipe (for bearing)& drum, then fit blades for strong durable years of use, fitted by nuts, weld. Deflectors 26, 28 may be metal / engineered plastic attached by deflectors upper, lower supports 27, 29 to traveling pipe12 such that blades rotates inside it. The deflector deflects wind on to more blades for more torque.

[0089] For few kilowatts small home systems, drums blades can be engineered plastic / composites. The drums can be hosted, released by manual rotation, release using handles to rotate rope cable drum. For larger turbines, weather proof coated steel can be used in mast, drum, travelling pipe. Drums, its blades can be made of carbon fibre, plastics, fibre glass etc for low weight. In low wind areas with one or two wind direction wind deflectors can be used. In moderate / large winds no deflectors are needed. The diameter of maximal drum size is possible is combination of drum cylinder, its attachment to travelling pipe bearings. Rope system can be eliminated in steady no storm stable wind sites. Belts pulleys can be used in home, moderate kilowatts sizes, gears in larger size windmills. Mechanism for folding / release of drum blades can be used in large systems, not illustrated. Rope Cables can be steel twisted for lifting travelling pipe in big devices and in small devices plastic non-stretchable nylon etc rope can be used. The device can be made for small KW for home, or large. Kilo / megawatts industrial use and by a grid of many connected wind generators.

[0090] A small home top device drum can be 1 -3 metres diameter, with 1 -3 meters height on a longer pipe mast, without ropes, bearings on mast directly for lower cost use. Blades can be fabric types on drum cylinder too. In large models say 4-10 meters height, a drum of 1 -4 meters can be used with rope, travelling pipe system. For larger 10-30 meters or more tall drums of 2-5 diameters of half-mast height can be used. Area of wind harvested in ours is more than propellers or Darieus, Savonius types. Deflectors can be longer than drum heights.

[0091] Instead of castors, plastic bushes nylon etc. can be fixed on inside travelling pipe to slide on rails. Mast can be made of rails with cross bars. Drum blades are made of separate composite / engineered plastic. Covers18 on of top of drum I Figi , Fig 5 cuts eddies, improve torque. The rope drum& control can be in bottom of mast for easy maintenance.

[0092] The present invention can be modified in various embodiments, and the scope of the invention is not limited to the above-described embodiments. Thus, if the modified embodiment includes the structural elements of the claimed scope of the invention, it should be considered as falling within the scope of the claims of the present invention. Advantages of the new invention:

[0093] 1 . This is new revolution for wind energy

[0094] 2. The system converts blowing wind velocity to torque running generator for energy.

[0095] 3. Mast is easy to fix to allow travel pipe for up& down travel. 4. Drum turbine with its blades is streamlined for more energy transfer.

[0096] 5. Deflector directs wind on to drum blades for more torque, electricity in low speed wind models.

[0097] 6. Electronic control box manages, travel pipe- wind change adjustment, output electricity, safety controls. 7. This is green& low pollution eternal energy!

[0098] 8. Ours is safe for birds too as drum is more visible than propellers!

[0099] 9. Ours supply local areas saving on transmission cost!

Claims

WE Claim:

1. An Improved vertical axis windmill comprising: a. A cylindrical drum turbine component comprising the drum (16), plurality of circumference curved surface blades (20), a set of upper(19) and lower edge blades (22), a bottom surface generator gear ring(23), an inner central cavity pipe (17) to fit bearings set on the non-rotating travelling pipe(12). b. Plurality of drum blades components, each blade (20), has a wind receiving surface with series of holes (21 ), and on its back surface set of reinforcing horizontal& vertical ridges. c. A mast component comprising mast pipe proper (1 ) of calculated height, its outer surface set of rails (2), rope cables (10) and electronic control (6) and a foundation (7) in earth. d. A travelling pipe component comprising the pipe(12), on pipe’s inner surface a set of castors (13) to fit& roll on mast rails(2),) on the travelling pipe outer surface a set of bearings(15, wind deflectors (26, 28), A.C generators (24) on bottom and top edge rope cable holes(14). e. A wind trapping & channelizing deflector component comprising the deflector (26), deflecting wind on to blades, its other deflector (28) with a funnel (30) and channelizing parts (31 ) directing wind onto drum blades for more energy in low wind models. f. A travelling pipe positioning component comprising the rope cable drum (9), its motor(8), rope cables (10), rope free end fixed to upper part of travelling pipe edge hole(14), the rope cable (10) rolling on pulleysl 1 . g. An electronic control box component comprising electrical module (6) with electronic circuits , its input electrical cable of A.C generators(32), an output electrical cable (33) of rated volt, phase, a travelling pipe module with wind sensor (5) circuit linked to cable drum motor(8), diagnostic, data & communicating module communicating, a safety module for night safety warning lamps(4). h. A safety regulation component comprising mast top red lights (4), lightning arrester (36).

2. The improved vertical axis windmill as claimed in claim 1 , wherein the cylindrical drum component comprises the drum (16), bottom surfacegenerator gear ring(23) , an inner central cavity pipe (17), a plurality of blades(20) on the curved surface, additional upperl 9 & lower plurality of blades(22), the cylindrical drum rotating freely around the travelling pipe bearings(15) .

3. The improved vertical axis windmill as claimed in claim 1 .wherein the drum blades of the curved surface of cylindrical drum comprises a blade body (20) with holes (21 ) on the wind hitting surface and on the back side a set of reinforcing horizontal& vertical ridges.

4. The improved vertical axis windmill as claimed in claim 1 , wherein the travelling pipe comprises a pipe body(12) , a set of top edge rope cable holes(14), sets of pipe inner surface castors (13) fittings rolling on mast rails(2), pipe outer surface bearings sets(15), wind deflector supports sets (27,29), generators supports (25).

5. The improved vertical axis windmill as claimed in claim 1 , wherein the low velocity wind model , the travel pipe(12) has a deflector (26) & on the opposite side another funnelling deflector(28) which comprises a front curved air funnelling part(30) and a back channelizing part(31 ) to direct wind on to cylindrical drum blades, deflector supports sets (27,29)) on the travelling pipe positioning the deflectors outer to drum blades.

6. The improved vertical axis windmill as claimed in claim 1 , wherein the mast comprises , a foundation part(7), mast proper(1 ), a rope cable drum (9) and electronic control (6) inside of mast, a topmost rain / snow protecting shield (3) with warning lamp(4), lightning arrestor(36), wind sensor (5), the mast outer surface having plurality of rails (2) for travelling pipe castors.

7. The improved vertical axis windmill as claimed in claim 1 , wherein the travelling pipe rope cable system comprises a rope cable drum (9) with rope cables(10), its electrical motor(8), plurality of rope cables(10) with its free end fixed in travelling pipe holes(14).

8. The improved vertical axis windmill as claimed in claim 1 , wherein electronic control module (6) comprises a rope cable drum module with its wind sensor input, a communication module& warning safety module and an electrical volt, phase module with its weather proof input A.C generatorelectrical cables (32) and output water proof electrical cable (33) for safe electrical feed to grid.

9. . The improved vertical axis windmill as claimed in claim 1 , electrical system comprises generator electrical cable (32) wired to electronic control module with volt, phase correcting circuits (6), from electronic control module an output weather proof electrical cable (33) to land grid.

10. The Improved vertical axis windmill as claimed in claim 1 , wherein motorised rings on travelling pipe outside has the two deflectors, the electronic controls wind direction sensor, the motor positions deflectors into the wind for more energy.

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