# US 11,440,654 B2 · Amphibious aerial vehicle

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- Number: US 11,440,654 B2
- Document ID: US11440654B2
- Status: Granted
- Kind: B2
- Application number: 17/396,733
- Filed: 2021-08-08
- Published: 2022-02-10
- Granted: 2022-09-13
- Earliest claimed: 2019-02-20
- Applicants: Shanghai Autoflight Co., Ltd.
- Inventors: Yu Tian
- Web page: https://patentgrep.com/patent/US11440654B2

## CPC

- B64C 37/00: Convertible aircraft
- B60F 5/00: Other vehicles capable of travelling in or on different media (flying-boats or seaplanes B64C35/00)
- B64C 25/54: Floats
- B64C 27/26: characterised by provision of fixed wings
- B64C 29/0025: {the propellers being fixed relative to the fuselage}
- B64C 35/005: {with propellers, rudders or brakes acting in the water}
- B64C 37/02: Flying units formed by separate aircraft (towing B64D3/00; aircraft transported by aircraft B64D5/00; air-refuelling B64D39/00)
- B64C 39/04: having multiple fuselages or tail booms
- B64C 39/068: {having multiple wings joined at the tips}
- B64C 39/12: Canard-type aircraft
- B64U 10/20: Vertical take-off and landing [VTOL] aircraft (flying platforms B64U10/13; helicopters B64U10/17)
- B64U 10/70: Convertible aircraft, e.g. convertible into land vehicles
- B64U 30/10: Wings
- B64U 50/19: using electrically powered motors
- B60F 5/02: convertible into aircraft (convertible aircraft B64C37/00; convertible unmanned aerial vehicle [UAV]-type aircraft, e.g. convertible into land vehicles, B64U10/70)
- B63B 7/08: Inflatable (inflatable water sports boards B63B32/51; inflatable canoes, kayaks or the like being inflatable or having inflatable parts B63B34/22)
- B64C 2211/00: Modular constructions of airplanes or helicopters
- B64D 25/18: Flotation gear
- B64U 30/294: Rotors arranged in the UAV body
- B64U 40/10: for adjusting control surfaces or rotors
- B64U 50/13: using external fans or propellers
- B64U 60/30: detachable from the body
- B64U 2101/60: for transporting passengers; for transporting goods other than weapons
- B64C: AEROPLANES; HELICOPTERS
- B60F: VEHICLES FOR USE BOTH ON RAIL AND ON ROAD; VEHICLES CAPABLE OF TRAVELLING IN OR ON DIFFERENT MEDIA, e.g. AMPHIBIOUS VEHICLES (air-cushion vehicles B60V)
- B64U: UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B63B: SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING (arrangements of vessel ventilation, heating, cooling, or air-conditioning B63J2/00; floating substructures as supports of dredgers or soil-shifting machines E02F9/06)
- B64D: EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT

## Abstract

A UAV with vertical takeoff and landing (VTOL) function having a plurality of lift propellers; a cabin engaged with a plurality of lift propellers; a water propulsion system engaged with the cabin to push the cabin in a forward direction when the cabin is at least partially immersed in water; at least one water inlet engaged with the water propulsion system; the cabin is a cargo hold or a passenger cabin. The UAV provided by the disclosure can realize vertical takeoff and landing in the water area, and fly, drive and navigate freely in the whole area.

## Claims

### Claim 1

A UAV (unmanned aerial vehicle), which is characterized by comprising:
a plurality of lift propellers;
a cabin engaged with said plurality of lift propellers;
a water propulsion system engaged with the cabin to push the cabin in a forward direction when the cabin is at least partially immersed in water;
at least one water inlet engaged with the water propulsion system;
wherein the water propulsion system includes a motor, a water propeller and a cylinder;
wherein the cylinder is fixedly connected to the cabin; the cylinder is provided with an open end and a blocking end; the cylinder has an axis and said axis is parallel to a longitudinal axis of the cabin; and the open end of the cylinder faces a rear end of the UAV; the water inlet is positioned on a side wall of the cylinder;
wherein the motor is positioned inside the cylinder, and a body of the motor is fixedly connected with an inner wall of the cylinder; and
wherein the water propeller is positioned inside the cylinder and close to the open end of the cylinder, and the water propeller is connected with an output shaft of the motor.

### Claim 2 (depends on 1)

The UAV according to claim 1, which is characterized in that the motor is an electric motor.

### Claim 3 (depends on 1)

The UAV according to claim 1, which is characterized in that it also includes a rudder engaged with the water propulsion system, said rudder enables the travel direction to be changed when the cabin is partially immersed in water.

### Claim 4 (depends on 3)

The UAV according to claim 3, which is characterized in that the rudder has a vertically arranged sheet structure, and a top end and a bottom end of the sheet structure are hinged to the inner wall of the cylinder; wherein the rudder is positioned downstream of the water propeller and can rotate around a hinge point with the cylinder.

### Claim 5 (depends on 1)

The UAV according to claim 1, which is characterized in that the cabin is a cargo hold or a passenger cabin.