Powered aircraft including inflatable and rotatable bodies exhibiting a circular cross-section perpendicular to its rotation axis and in order to generate a lift force

• US 7,427,047 B2
• Filed: 05/26/2005
• Issued: 09/23/2008
• Est. Priority Date: 05/10/2004
• Status: Expired due to Fees

• Current Assignee: Omid Saeed Tehrani
• Original Assignee: Omid Saeed Tehrani
• Inventors: Saeed Tehrani, Omid
• Primary Examiner(s): Mansen; Michael R.
• Assistant Examiner(s): Sanderson; Joseph W
• Application Number:
  US11/138,130
• Publication Number:
  US 20060124800A1
• Time in Patent Office: 1,216 Days
• Field of Search: 244/19, 244/21
• US Class Current: 244/21
• CPC Class Codes: B64C 23/02 by means of rotating members of cylindrical or similar form
• CPC Class Codes: B64C 3/30 comprising inflatable structural components
• CPC Class Codes: B64C 3/56 Folding or collapsing to reduce overall dimensions of aircraft
• CPC Class Codes: B64C 39/005 about a horizontal transversal axis
• CPC Class Codes: Y02T 50/10 Drag reduction

Abstract

A lift force generating aircraft having an engine and a thrust force producing device. A pair of elongated and rotating bodies, an axial centerline through the bodies extending in a direction substantially perpendicular to a fore to aft axis extending between the engine and thrust-producing device and at a location above a center of gravity associated with the engine and thrust-producing device. The rotating bodies being constructed of a material inflatable to a desired pressure. A rotary output associated with the engine rotating the bodies, causing them to deflect to angles lesser than the perpendicular with the fore to aft axis, and in response to air stream forces acting upon the bodies in order to reduce drag forces experienced on a rear side of the rotating bodies.

Claims

1. A lift-generating apparatus incorporated into an aircraft, the aircraft including an engine and a thrust force generating device, said apparatus comprising:

first and second interconnected and crosswise extending elongated and rotating bodies, an axial centerline through said body being in a direction substantially crosswise to a fore to aft axis extending between the engine and thrust generating device; and

a rotary output associated with said engine rotating said bodies and, in response to air stream forces acting thereupon, deflecting said bodies to an angle between said crosswise direction and said fore to aft axis thereby reducing drag forces experienced on a rear side of said body.

2. The lift-generating apparatus as described in claim 1, said rotating bodies being constructed of a material inflatable to a desired pressure.

3. The lift-generating apparatus as described in claim 2, further comprising said rotatable bodies capable of deflecting in directions fore and aft relative to said centerline.

4. The lift-generating apparatus as described in claim 2, further comprising said rotatable bodies capable of being deflated for ease of storage and transportation.

5. The lift-producing device as described in claim 1, a said axial centerline of said rotating bodies extending above a center of gravity associated with the engine and thrust-generating device.

6. The lift-generating apparatus as described in claim 1, further comprising a shaft mounted and rotatable pulley disposed between the engine and thrust-producing device, a continuous belt extending from said pulley and engaging a narrowed location associated with said interconnected bodies.

7. The lift-generating apparatus as described in claim 6, further comprising a plurality of belt supported and driven rollers contacting surface locations associated with said rotatable bodies.

8. The lift-generating apparatus as described in claim 1, further comprising the centerline of said rotatable body being positioned above at least one of a center of gravity and a thrust force associated with the aircraft.

9. The lift-generating apparatus as described in claim 1, said thrust-producing device further comprising a propeller.

10. A lift force generating aircraft, comprising:

at least one engine and a thrust force producing device associated with said engine;

at least one elongated and rotating body, an axial centerline through said body extending in a direction substantially perpendicular to a fore to aft axis extending between the engine and thrust-producing device and at a location above a center of gravity associated with the engine and thrust-producing device, said rotating body being constructed of a material inflatable to a desired pressure; and

a rotary output associated with said engine rotating said body, said body swiping to angles lesser than said perpendicular with said fore to aft axis, and in response to air stream forces acting upon said body in order to reduce drag forces experienced on a rear side of said body.

11. The lift-generating apparatus as described in claim 10, further comprising a shaft mounted and rotatable pulley disposed between the engine and thrust-producing device, a continuous belt extending from said pulley and engaging a narrowed location associated with said interconnected bodies.

12. The lift-generating apparatus as described in claim 11, further comprising a plurality of belt supported and driven rollers contacting surface locations associated with said rotatable bodies.

13. The lift-generating apparatus as described in claim 11, further comprising said centerline associated with said rotatable body located at a higher elevation as compared to the thrust-producing device.

14. The lift-generating apparatus as described in claim 10, said thrust-producing device further comprising a propeller.

15. The lift-generating apparatus as described in claim 10, further comprising said rotatable bodies capable of being deflated for ease of storage and transportation.

16. A lift force generating aircraft, comprising:

an engine and a thrust force producing device defined along a fore to aft extending axis, said thrust force producing device further comprising an aircraft propeller interconnected to the engine by a drive shaft;

a pair of oppositely extending, elongated and rotating bodies, an axial centerline through said body extending in a direction substantially perpendicular to the fore to aft axis extending between the engine and thrust-producing device and at a location above a center of gravity associated with the engine and thrust-producing device, said rotating body being constructed of a material inflatable to a desired pressure; and

a shaft rotated pulley disposed between the engine and propeller driving a belt interconnecting a central interconnecting location of said rotating bodies and such that a rotary output associated with the engine rotates said bodies, said bodies swiping to angles lesser than said perpendicular with said fore to aft axis, and in response to air stream forces acting upon said body in order to reduce drag forces experienced on a rear side of said body.