# US 2022/0274697 A1 · Aerodynamic techniques and methods for quieter supersonic flight

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- Number: US 2022/0274697 A1
- Document ID: US20220274697A1
- Status: Published application
- Kind: A1
- Application number: 17/614,364
- Filed: 2019-07-01
- Published: 2022-09-01
- Earliest claimed: 2019-07-01
- Inventors: chuanrui zhang
- Web page: https://patentgrep.com/patent/US20220274697A1

## CPC

- B64C 30/00: Supersonic type aircraft
- B64C 1/0009: {Aerodynamic aspects}
- B64C 23/04: by generating shock waves
- B64C 2001/0045: {Fuselages characterised by special shapes}
- B64D 2033/026: {for supersonic or hypersonic aircraft}
- 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

## Abstract

This invention is focus on how to make a quieter supersonic flight. Several techniques and methods have been crafted to solve the noise problem of the sonic boom. Sonic boom is propagated from aircraft to the ground, so add interference media between them to block the noise wave could reduce the sonic boom level. Using special designed wings could also reduce noise wave. Part of the special wings design is inspired from the bird flock's flight. Using active shock wave to blow away the air at the windward front of the aircraft or using holes at the fuselage bottom to flow away the air underneath the fuselage could reduce the noise wave propagated to travel to the ground.

## Claims

### Claim 1

An apparatus for mitigating sonic boom during supersonic flight, which comprising of:
an air flow source;
a device let the air flow transmit through; and
a nozzle to spread the air flow.

### Claim 2

An aircraft configured to reduce sonic boom, which comprising of:
fuselage;
an air flow source;
a device let the air flow transmit through;
a nozzle connected to the device to spread the air flow.

### Claim 3

An apparatus for mitigating sonic boom during supersonic flight, which comprising of:
an air flow source;
a device let the air flow transmit through;
a nozzle to spread the air flow; and
an interference media for interfering.

### Claim 4

An aircraft configured to reduce sonic boom, which comprising of:
fuselage;
an air flow source;
a device let the air flow transmit through;
a nozzle connected to the device to spread air flow; and
an interference media to block the expansion wave from the aircraft component by interfering with the air flow.

### Claim 5

An aircraft comprising of:
fuselage;
multiple rotatable wings installed on top and/or sides of the fuselage.

### Claim 6

An aircraft configured to reduce sonic boom, which comprising of:
fuselage with flat bottom;
multiple rotatable wings installed on top and/or sides of the fuselage.

### Claim 7

An apparatus for mitigating sonic boom during supersonic flight, which comprising of:
a shock wave generator;
nozzles to spread the shock wave at the windward front of the aircraft.

### Claim 8

An aircraft configured to reduce sonic boom, which comprising of:
fuselage;
a shock wave generator;
nozzle to spread the shock wave at the windward front of the aircraft.

### Claim 9

An apparatus to mitigating sonic boom during supersonic flight, which comprising of:
fuselage with holes at the bottom;
pipes to guide the air underneath the fuselage to flow out the aircraft.

### Claim 10

An aircraft configured to reduce sonic boom, which comprising of:
fuselage with holes at the bottom;
pipes to guide the air underneath the fuselage to flow out the aircraft;

### Claim 11

An aircraft configured to archive optimal performance of silence in supersonic flight, which comprising of:
fuselage with flat bottom and holes at the bottom;
multiple rotatable wings installed at the top of the fuselage;
a shock wave generator; and
nozzles to spread shock wave at the windward front of the aircraft.