US20190233082A9 - Rotating circular aerofoil and propeller system - Google Patents
Rotating circular aerofoil and propeller system Download PDFInfo
- Publication number
- US20190233082A9 US20190233082A9 US15/200,915 US201615200915A US2019233082A9 US 20190233082 A9 US20190233082 A9 US 20190233082A9 US 201615200915 A US201615200915 A US 201615200915A US 2019233082 A9 US2019233082 A9 US 2019233082A9
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- Prior art keywords
- disc body
- aerofoil
- fins
- shaped
- propeller system
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
- B64C11/007—Propulsive discs, i.e. discs having the surface specially adapted for propulsion purposes
Definitions
- This invention relates to conventional aerofoil and hydrofoil which produce a force perpendicular to the motion called lift.
- the well-known aerofoil principal has been applied in producing fixed wings and propellers for aircrafts. This same principal also has been applied to create lift for high speed watercraft known as hydrofoils
- Conventional aerofoils and hydrofoils usually must travel through a fluid to create lift.
- the present invention is for an aerofoil and hydrofoil that does not need to pass through fluids but create lift by rotating about its axis.
- the present invention is for a rotating circular aerofoil and propeller system with its main body sectional-shape similar to modern airplane wings, having a leading edge and a trailing edge, but is symmetrical about its axis.
- This circular aerofoil and propeller system includes a circular hollow at its center where the leading edge begins and a circular outer edge where its trailing edge ends. Pairs of T-shaped or L-shaped fins or a mixture T-shaped and L-shaped fins are attached to the top surface and bottom surface of the main body, which run radiately from the inner edge to the outer edge, to create centrifugal action of fluid when the circular aerofoil rotates about its center axis. As a result, the fluid in contact to the disc body travels from the leading edge to the trailing edge on both the top and bottom surfaces. A force perpendicular to this motion, called lift, is created when the circular aerofoil rotates around its center axis.
- the aerofoil includes additional means for pushing air over the top and bottom surfaces of the disc body to improve lift.
- FIG. 1 shows a top view of a rotating circular aerofoil and propeller system made in accordance with one embodiment of the present invention.
- FIG. 1A shows a cross sectional view of the rotating circular aerofoil and propeller, taking along line 1 A- 1 A in FIG. 1 .
- FIG. 1B shows an enlarged cross sectional view of the tee-shape fin of the rotating circular aerofoil and propeller system, taking along line 1 B- 1 B in FIG. 1 .
- FIG. 1C shows an enlarged cross-sectional view of the L-shaped fin.
- FIG. 2 shows a top view of a rotating circular aerofoil and propeller system made in accordance with one embodiment of the present invention with all of the T-shaped fins uniformly curved counterclockwise.
- FIG. 3 shows a top view of a rotating circular aerofoil and propeller system made in accordance with one embodiment of the present invention with all of the T-shaped fins uniformly curved clockwise.
- FIG. 4 shows a top plan view of the rotating circular aerofoil system with an air blower.
- FIG. 4A shows a cross-sectional view of the rotating aerofoil system with the air blower.
- FIG. 5 shows a top plan view of the rotating circular aerofoil system with the centrifugal impeller.
- FIG. 5A shows a cross-sectional view of the rotating aerofoil system 9 with the centrifugal impeller.
- FIG. 1 illustrated is a top view of a rotating circular aerofoil system 9 made in accordance with a preferred embodiment of the present invention.
- the system 9 includes a circular disc body 10 made to be symmetrical about its center axis 12 .
- the disc body 10 has a uniform and symmetrical aerofoil shape cross-section 14 as shown in FIG. 1A , and is made of lightweight composite or other suitable materials.
- a circular center opening 13 coaxially aligned with the central axis 12 is formed in the disc body 10 .
- the perimeter edge of the center opening 13 acts also as the disc body's leading edge 16 .
- Formed or mounted on the disc body 10 is a pair of fins 22 or 34 made of similar material as the disc body 10 .
- spokes 24 extend across the center opening 13 and intersect at an intersection section 25 at the center axis 12 .
- the spokes 24 are made of strong material that can be attached to the disc body 10 .
- Formed centrally in the intersection section 25 of the spokes 24 is a center hole 26 configured to engage a rotating shaft 40 , as shown in FIGS. 4 and 5 .
- FIG. 1A is a cross-sectional view of the rotating circular aerofoil system 9 through line 1 A- 1 A in FIG. 1 showing the disc body's aerofoil shape cross-sectional shape, the fins 22 formed on the top and bottom surfaces of the disc body 10 , and the spokes 26 .
- FIG. 1B is an enlarged cross-sectional view taken along line 1 B-!B in FIG. 1 showing a fin 22 mounted or formed on the top surface of the disc body 10 that has a T-shape configuration.
- FIG. 2 illustrated is the top view of another embodiment of the rotating circular aerofoil system 9 made in accordance with a preferred embodiment of the present invention as described as in FIG. 1 above; showing all the fins 22 uniformly curved counterclockwise to improve the aerodynamic of the rotating disc body 10 .
- This alternative embodiment is used when the disc body 10 is made to rotate clockwise only.
- FIG. 3 illustrated is the top view of a rotating circular aerofoil system 9 as described as in FIG. 1 above; only with all the fins 22 uniformly curved clockwise to improve the aerodynamic of the rotating disc body 10 .
- the fins 22 are curved clockwise when the disc body 10 is made to rotate counterclockwise only.
- the disc body 10 When a conventional aerofoil-shape body moves through the air, fluid travels from the leading edge to the trailing edge, producing a force perpendicular to the motion called lift.
- the disc body 10 Used in water to create lift, the disc body 10 is known as a hydrofoil.
- the inner perimeter edge 16 of the rotating disc body 10 serves as the leading edge while its outer edge 18 serves as the trailing edge as used in the conventional aerofoil.
- the circular disc body 10 rotates about its center axis 12 , causing the fluid in contact to travel from the inner edge 16 to the outer edge 18 due to the centrifugal action created by the fins 22 , and produces the same known lift force.
- More than two pairs of fins 22 are produced to maximize fluid flow to improve lift.
- FIGS. 4 and 4A show a top plan view and cross-sectional view, respectively, of another embodiment of the rotating circular aerofoil system 9 that includes a means for pushing air over the top surface of the disc body 10 to improve lift.
- the means for pushing air includes an air blower 36 located centrally and coaxially aligned with the disc body's center axis 12 .
- the air blower 36 includes a hollow cylindrical body 37 with a plurality of evenly spaced apart ports 38 formed on its side walls.
- the cylindrical body 37 is mounted on the upper end of a vertical hollow shaft 40 configured to transmit air from an air pump 100 .
- the air pump 100 may be linked to an engine (not shown) that rotates the disc body 10 or a separate structure.
- the cylindrical body 37 may be affixed to the disc body 10 or configured to rotate independently from the disc body 10 . When the cylindrical body 37 is rotated and air from the air pump 100 is pushed outward from the ports 38 to flow laterally over the top surface of the disc body 10 to improve lift.
- FIGS. 5 and 5A show an alternative means for pushing air over the top surface of the disc body 10 that includes an impeller 44 mounted on the top end of a vertical shaft 40 .
- the shaft 40 may be a solid structure or a hollow structure configured to deliver air from an optional air pump 100 .
- the impeller 44 includes a center hub 42 and a plurality of blades 46 that extend radially outward from the center hub 42 .
- the blades 46 are configured to force air laterally from the hub's center axis.
- the impeller 44 may rotate independently over the shaft 40 or fixed to the shaft 40 and rotates with the shaft 40 is rotated. During operation, the impeller 44 rotates and the blades 46 force air that flows against the hub 42 laterally and over the top surface of the disc body 10 to improve lift.
- a shaft 40 may be a hollow shaft hollow shaft, similar to the hollow shaft 40 shown in FIGS. 4 and 4A , that connects to an air pump 100 to forcible deliver air from the air pump 100 to the center hub 42 and over the top surface of the disc body 10 .
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Aviation & Aerospace Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
- This is a continuation in part application based on U.S. utility patent application (application Ser. No. 13/694,082), filed on Oct. 10, 2012, now U.S. Pat. No. 9,381,988.
- Notice is given that the following patent document contains original material subject to copyright protection. The copyright owner has no objection to the facsimile or digital download reproduction of all or part of the patent document, but otherwise reserves all copyrights.
- This invention relates to conventional aerofoil and hydrofoil which produce a force perpendicular to the motion called lift. The well-known aerofoil principal has been applied in producing fixed wings and propellers for aircrafts. This same principal also has been applied to create lift for high speed watercraft known as hydrofoils
- Due to the upper curved shape of the aerofoil, fluid travels faster for a longer path across the top surface than the bottom surface of the aerofoil producing lower pressure over the top surface, therefore creating lift.
- Conventional aerofoils and hydrofoils usually must travel through a fluid to create lift. The present invention is for an aerofoil and hydrofoil that does not need to pass through fluids but create lift by rotating about its axis.
- The present invention is for a rotating circular aerofoil and propeller system with its main body sectional-shape similar to modern airplane wings, having a leading edge and a trailing edge, but is symmetrical about its axis. This circular aerofoil and propeller system includes a circular hollow at its center where the leading edge begins and a circular outer edge where its trailing edge ends. Pairs of T-shaped or L-shaped fins or a mixture T-shaped and L-shaped fins are attached to the top surface and bottom surface of the main body, which run radiately from the inner edge to the outer edge, to create centrifugal action of fluid when the circular aerofoil rotates about its center axis. As a result, the fluid in contact to the disc body travels from the leading edge to the trailing edge on both the top and bottom surfaces. A force perpendicular to this motion, called lift, is created when the circular aerofoil rotates around its center axis.
- In different embodiments, the aerofoil includes additional means for pushing air over the top and bottom surfaces of the disc body to improve lift.
-
FIG. 1 shows a top view of a rotating circular aerofoil and propeller system made in accordance with one embodiment of the present invention. -
FIG. 1A shows a cross sectional view of the rotating circular aerofoil and propeller, taking alongline 1A-1A inFIG. 1 . -
FIG. 1B shows an enlarged cross sectional view of the tee-shape fin of the rotating circular aerofoil and propeller system, taking alongline 1B-1B inFIG. 1 . -
FIG. 1C shows an enlarged cross-sectional view of the L-shaped fin. -
FIG. 2 shows a top view of a rotating circular aerofoil and propeller system made in accordance with one embodiment of the present invention with all of the T-shaped fins uniformly curved counterclockwise. -
FIG. 3 shows a top view of a rotating circular aerofoil and propeller system made in accordance with one embodiment of the present invention with all of the T-shaped fins uniformly curved clockwise. -
FIG. 4 shows a top plan view of the rotating circular aerofoil system with an air blower. -
FIG. 4A shows a cross-sectional view of the rotating aerofoil system with the air blower. -
FIG. 5 shows a top plan view of the rotating circular aerofoil system with the centrifugal impeller. -
FIG. 5A shows a cross-sectional view of the rotatingaerofoil system 9 with the centrifugal impeller. -
-
- 9 aerofoil system;
- 10 disc body
- 12 axis disc body;
- 13 center opening;
- 14 body-sectional-shape of the disc body;
- 15 top surface of the disc body;
- 16 circular inner edge/leading edge of the disc body;
- 17 bottom surface of the disc body;
- 18 circular outer edge/trailing edge of the disc body;
- 20 angle of attack of the aerofoil;
- 22 pair of fins;
- 24 spokes;
- 25 intersection section of the spokes;
- 26 center hole;
- 28 lift force of the aerofoil;
- 30 air travel direction when the disc body rotates;
- 32 rotating direction of the disc body;
- 34 L-shaped fin;
- 36 air blower;
- 37 cylindrical body;
- 38 air blower port (to push more air/fluid thru the aerofoil body and improve lift);
- 40 turn shaft;
- 42 center hub;
- 44 centrifugal impeller (to push more air/fluid thru aerofoil body and improve lift);
- 46 impeller blade; and,
- 100 air pump
- Referring to
FIG. 1 , illustrated is a top view of a rotatingcircular aerofoil system 9 made in accordance with a preferred embodiment of the present invention. Thesystem 9 includes acircular disc body 10 made to be symmetrical about itscenter axis 12. Thedisc body 10 has a uniform and symmetricalaerofoil shape cross-section 14 as shown inFIG. 1A , and is made of lightweight composite or other suitable materials. A circular center opening 13 coaxially aligned with thecentral axis 12 is formed in thedisc body 10. The perimeter edge of the center opening 13 acts also as the disc body's leadingedge 16. Formed or mounted on thedisc body 10 is a pair offins disc body 10. Fourspokes 24 extend across thecenter opening 13 and intersect at an intersection section 25 at thecenter axis 12. Thespokes 24 are made of strong material that can be attached to thedisc body 10. Formed centrally in the intersection section 25 of thespokes 24 is acenter hole 26 configured to engage arotating shaft 40, as shown inFIGS. 4 and 5 . - Referring to
FIG. 1A is a cross-sectional view of the rotatingcircular aerofoil system 9 throughline 1A-1A inFIG. 1 showing the disc body's aerofoil shape cross-sectional shape, thefins 22 formed on the top and bottom surfaces of thedisc body 10, and thespokes 26. - Referring to
FIG. 1B , is an enlarged cross-sectional view taken alongline 1B-!B inFIG. 1 showing afin 22 mounted or formed on the top surface of thedisc body 10 that has a T-shape configuration. - Referring to
FIG. 2 , illustrated is the top view of another embodiment of the rotatingcircular aerofoil system 9 made in accordance with a preferred embodiment of the present invention as described as inFIG. 1 above; showing all thefins 22 uniformly curved counterclockwise to improve the aerodynamic of therotating disc body 10. This alternative embodiment is used when thedisc body 10 is made to rotate clockwise only. - Referring to
FIG. 3 , illustrated is the top view of a rotatingcircular aerofoil system 9 as described as inFIG. 1 above; only with all thefins 22 uniformly curved clockwise to improve the aerodynamic of therotating disc body 10. Thefins 22 are curved clockwise when thedisc body 10 is made to rotate counterclockwise only. - When a conventional aerofoil-shape body moves through the air, fluid travels from the leading edge to the trailing edge, producing a force perpendicular to the motion called lift. Used in water to create lift, the
disc body 10 is known as a hydrofoil. In this present invention, theinner perimeter edge 16 of therotating disc body 10 serves as the leading edge while itsouter edge 18 serves as the trailing edge as used in the conventional aerofoil. When thecircular disc body 10 rotates about itscenter axis 12, causing the fluid in contact to travel from theinner edge 16 to theouter edge 18 due to the centrifugal action created by thefins 22, and produces the same known lift force. - More than two pairs of
fins 22 are produced to maximize fluid flow to improve lift. -
FIGS. 4 and 4A show a top plan view and cross-sectional view, respectively, of another embodiment of the rotatingcircular aerofoil system 9 that includes a means for pushing air over the top surface of thedisc body 10 to improve lift. In the embodiment shown inFIGS. 4 and 4A , the means for pushing air includes anair blower 36 located centrally and coaxially aligned with the disc body'scenter axis 12. Theair blower 36 includes a hollowcylindrical body 37 with a plurality of evenly spaced apartports 38 formed on its side walls. Thecylindrical body 37 is mounted on the upper end of a verticalhollow shaft 40 configured to transmit air from an air pump 100. The air pump 100 may be linked to an engine (not shown) that rotates thedisc body 10 or a separate structure. - The
cylindrical body 37 may be affixed to thedisc body 10 or configured to rotate independently from thedisc body 10. When thecylindrical body 37 is rotated and air from the air pump 100 is pushed outward from theports 38 to flow laterally over the top surface of thedisc body 10 to improve lift. -
FIGS. 5 and 5A show an alternative means for pushing air over the top surface of thedisc body 10 that includes animpeller 44 mounted on the top end of avertical shaft 40. Theshaft 40 may be a solid structure or a hollow structure configured to deliver air from an optional air pump 100. Theimpeller 44 includes acenter hub 42 and a plurality ofblades 46 that extend radially outward from thecenter hub 42. Theblades 46 are configured to force air laterally from the hub's center axis. Theimpeller 44 may rotate independently over theshaft 40 or fixed to theshaft 40 and rotates with theshaft 40 is rotated. During operation, theimpeller 44 rotates and theblades 46 force air that flows against thehub 42 laterally and over the top surface of thedisc body 10 to improve lift. If additional lift is needed, ashaft 40 may be a hollow shaft hollow shaft, similar to thehollow shaft 40 shown inFIGS. 4 and 4A , that connects to an air pump 100 to forcible deliver air from the air pump 100 to thecenter hub 42 and over the top surface of thedisc body 10. - In compliance with the statute, the invention described has been described in language more or less specific as to structural features. It should be understood, however, that the invention is not limited to the specific features shown, since the means and construction shown comprises the preferred embodiments for putting the invention into effect. The invention is therefore claimed in its forms or modifications within the legitimate and valid scope of the amended claims, appropriately interpreted in accordance with under the doctrine of equivalents.
Claims (10)
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US15/200,915 US10377467B2 (en) | 2012-10-26 | 2016-07-01 | Rotating circular aerofoil and propeller system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US13/694,082 US9381988B2 (en) | 2012-10-26 | 2012-10-26 | Rotating circular airfoil and propeller system |
US15/200,915 US10377467B2 (en) | 2012-10-26 | 2016-07-01 | Rotating circular aerofoil and propeller system |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US13/694,082 Continuation-In-Part US9381988B2 (en) | 2012-10-26 | 2012-10-26 | Rotating circular airfoil and propeller system |
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US20180001993A1 US20180001993A1 (en) | 2018-01-04 |
US20190233082A9 true US20190233082A9 (en) | 2019-08-01 |
US10377467B2 US10377467B2 (en) | 2019-08-13 |
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US12071228B1 (en) * | 2019-03-28 | 2024-08-27 | Snap Inc. | Drone with propeller guard configured as an airfoil |
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US3124200A (en) * | 1964-03-10 | Propeller device | ||
US1542853A (en) | 1924-06-24 | 1925-06-23 | Joseph J Callahan | Propeller |
US2378125A (en) | 1941-11-12 | 1945-06-12 | Charles A Cooper | Airscrew |
US2426742A (en) | 1943-11-20 | 1947-09-02 | Felix W Pawlowski | Screw propeller |
US2855179A (en) | 1955-01-05 | 1958-10-07 | John K Brown | High temperature ceramic turbine |
US4301981A (en) * | 1979-06-29 | 1981-11-24 | Joseph Hartt | Aircraft with rotary wing |
US5503351A (en) * | 1994-09-06 | 1996-04-02 | Vass; Gabor I. | Circular wing aircraft |
US20110097209A1 (en) | 2009-10-26 | 2011-04-28 | Solorzano Luis Indefonso | Thermal airfoil turbine |
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US10377467B2 (en) | 2019-08-13 |
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