# US 2014/0197272 A1 · Aircraft wing flap device and method of operating the same

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- Number: US 2014/0197272 A1
- Document ID: US20140197272A1
- Status: Published application
- Kind: A1
- Application number: 14/154,661
- Filed: 2014-01-14
- Published: 2014-07-17
- Earliest claimed: 2013-01-16
- Assignees: Otto Aviation Group
- Inventors: William M. OTTO
- Web page: https://patentgrep.com/patent/US20140197272A1

## CPC

- B64C 25/20: mechanical
- B64C 1/00: Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
- B64C 1/065: {Spars}
- B64C 1/069: {Joining arrangements therefor}
- B64C 1/10: Bulkheads
- B64C 3/185: {Spars}
- B64C 3/26: Construction, shape, or attachment of separate skins, e.g. panels
- B64C 3/58: provided with fences or spoilers (adjustable for control purposes B64C9/00)
- B64C 5/02: Tailplanes
- B64C 5/16: about spanwise axes
- B64C 9/02: Mounting or supporting thereof
- B64C 9/16: at the rear of the wing
- B64C 9/20: by multiple flaps
- B64C 25/02: Undercarriages
- B64C 25/10: retractable, foldable, or the like
- B64C 25/12: sideways
- B64C 25/14: fore-and-aft
- B64C 25/18: Operating mechanisms
- B64D 33/10: Radiator arrangement
- B64D 37/04: Arrangement thereof in or on aircraft
- B64C 2025/125: {into the fuselage, e.g. main landing gear pivotally retracting into or extending out of the fuselage}
- F02B 37/001: {using exhaust drives arranged in parallel}
- Y02E 30/30: Nuclear fission reactors
- Y02T 50/30: Wing lift efficiency
- Y02T 50/40: Weight reduction
- Y02T 50/80: Energy efficient operational measures, e.g. ground operations or mission management
- B64C: AEROPLANES; HELICOPTERS
- B64D: EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- F02B: INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL (gas-turbine plants F02C; hot-gas or combustion-product positive-displacement engine plants F02G)
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

A wing flap control system on a wing comprising at least two control plates having an opening sized to accommodate a drive shaft, a drive shaft that engages each of the openings in each of the plurality of plates, a sprocket rotatively affixed the drive shaft with the drive shaft penetrating the other control plate, at least two idler sprockets between the control plates, a chain wrapped around the sprocket and idler sprockets, a support arm rotatively coupled to the chain by a chain shoe and to a foreflap, a link arm rotatively coupled to the support arm and to a flap, where movement of the drive shaft causes the foreflap and flap to extend and retract to increase or decrease the surface area of the wing.

## Claims

### Claim 1

A wing flap control system on a wing comprising:
at least two control plates having an opening sized to accommodate a drive shaft;
a drive shaft that engages each of the openings in each of the plurality of plates;
a sprocket rotatively affixed the drive shaft with the drive shaft penetrating the other control plate;
at least two idler sprockets between the control plates;
a chain engages the sprocket and idler sprockets;
a support arm rotatively coupled to the chain by a chain shoe and to a foreflap;
a link arm rotatively coupled to the support arm and to a flap,
wherein movement of the drive shaft causes the foreflap and flap to extend and retract to increase or decrease the surface area of the wing.

### Claim 2 (depends on 1)

The wing flap control system of claim 1, wherein the chain shoe slides in a first slot formed on the surface of the control plate.

### Claim 3 (depends on 2)

The wing flap control system of claim 2, wherein the link arm slides in a second slot formed on the surface of the control plate.

### Claim 4 (depends on 2)

The wing flap control system of claim 2, wherein the first slot is substantially straight horizontal.

### Claim 5 (depends on 3)

The wing flap control system of claim 3, wherein the second slot is substantially arc shaped.

### Claim 6 (depends on 1)

The wing flap control system of claim 1, wherein the link arm is connected to the flap and foreflap by a tilt arm.

### Claim 7 (depends on 6)

The wing flap control system of claim 6, wherein foreflap is connected to the flap by a flap plates.

### Claim 8 (depends on 3)

The wing flap control system of claim 3, wherein the link arm is substantially “U” shaped.

### Claim 9 (depends on 1)

The wing flap control system of claim 1, including a cover plate on a first side the control plate.

### Claim 10 (depends on 9)

The wing flap control system of claim 9, including at least two cover plates on the second side of at least one cover plate.

### Claim 11

The wing flap control system of claim wherein the link arm is rotatively connected to connected to the support arm by a shoe.