# US 11,027,828 B2 · Vortex generator arrangement and control system for an aircraft

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- Number: US 11,027,828 B2
- Document ID: US11027828B2
- Status: Granted
- Kind: B2
- Application number: 16/159,862
- Filed: 2018-10-15
- Published: 2019-05-23
- Granted: 2021-06-08
- Earliest claimed: 2017-11-17
- Assignees: Airbus Operations GmbH
- Applicants: Airbus Operations GmbH
- Inventors: Bruno Stefes
- Web page: https://patentgrep.com/patent/US11027828B2

## CPC

- B64C 23/06: by generating vortices
- B64C 9/34: collapsing or retracting against or within other surfaces or other members
- B64C 13/36: fluid
- B64C 2230/00: Boundary layer controls
- Y02T 50/10: Drag reduction
- Y02T 50/40: Weight reduction
- B64C: AEROPLANES; HELICOPTERS
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

A vortex generator control system for a controlling an aircraft vortex generator arrangement comprising a controller configured to receive one or more deploy or retract command signals from a flight control unit and further configured to send one or more command signals to a fluid control valve, a fluid pressure sensor configured to sense one or more pressure values from an actuator of the vortex generator arrangement and to signal the pressure value(s) to the controller, wherein the fluid control valve is configured to control fluid transfer between the actuator and a reservoir in response to a command signal from the controller.

## Claims

### Claim 1

A vortex generator control system for a controlling an aircraft vortex generator arrangement comprising:
a controller configured to receive one or more deploy or retract command signals from a flight control unit and further configured to send one or more command signals to a fluid control valve;
a fluid pressure sensor configured to sense one or more pressure values from an actuator of the vortex generator arrangement and to signal the sensed one or more pressure values to the controller;
wherein the fluid control valve is configured to control fluid transfer between the actuator and a reservoir in response to a command signal from the controller,
wherein the vortex generator control system is configured to operate a fluidic muscle actuator of a vortex generator arrangement within a pressure range of 0 Pa to +600000 Pa relative to an ambient pressure.

### Claim 2 (depends on 1)

The vortex generator control system according to claim 1, wherein the controller is further configured to send command signals to a fluid pump configured to drive fluid from the reservoir to the actuator in response to a command signal from the controller.

### Claim 3 (depends on 1)

The vortex generator control system according to claim 1, wherein the system is configured to be operated using a hydraulic fluid.

### Claim 4 (depends on 1)

The vortex generator control system according to claim 1, wherein the system is configured to be operated using a pneumatic fluid.

### Claim 5 (depends on 1)

The vortex generator control system according to claim 1, comprising a plurality of pressure sensors or control valves.

### Claim 6 (depends on 1)

The vortex generator control system according to claim 1, wherein the control valve is solenoid operated.

### Claim 7 (depends on 1)

The vortex generator control system according to claim 1, configured to control a linear fluidic actuator of a vortex generator arrangement.

### Claim 8 (depends on 1)

The vortex generator control system according to claim 1, configured to control a fluidic muscle actuator of a vortex generator arrangement.

### Claim 9 (depends on 1)

A vortex generator control system according to claim 1, configured to control a vortex generator arrangement with a deployed state corresponding to an actuator pressure of approximately 600000 Pa relative to an ambient pressure.

### Claim 10 (depends on 1)

A vortex generator control system according to claim 1, configured to control a plurality of aircraft vortex generator arrangements.

### Claim 11 (depends on 1)

An aircraft comprising a vortex generator control system according to claim 1.

### Claim 12

A method of using a vortex generator control system to control actuation of an airflow modification device of a vortex generator arrangement from a first position to a second position, comprising the steps of:
a flight control unit signaling a controller to move an airflow modification device of a vortex generator arrangement comprising a fluidic muscle actuator operating within a pressure range of 0 Pa to +600000 Pa relative to an ambient pressure from a first position to a second position;
a controller signaling a control valve to open in order to permit the transfer of fluid between a reservoir and an actuator of the vortex generator arrangement such that the airflow modification device actuates from a first position to a second position.

### Claim 13 (depends on 12)

The method of claim 12, wherein the first position is a retracted state of the airflow modification device and the second position is a deployed state of the airflow modification device.

### Claim 14 (depends on 12)

The method of claim 12, wherein the first position is a deployed state of the airflow modification device and the second position is a retracted state of the airflow modification device.