In-flight refueling system, alignment system, and method for automatic alignment and engagement of an in-flight refueling boom

• US 6,966,525 B1
• Filed: 06/28/2004
• Issued: 11/22/2005
• Est. Priority Date: 06/28/2004
• Status: Active Grant

• Current Assignee: The Boeing Co.
• Original Assignee: The Boeing Co.
• Inventors: Schroeder, Steven B.
• Primary Examiner(s): Carone, Michael J.
• Assistant Examiner(s): HOLZEN, STEPHEN A
• Application Number:
  US10/880,171
• Time in Patent Office: 512 Days
• Field of Search: 244/135.R, 244/135.A, 244/135.B
• US Class Current: 244/135.00A
• CPC Class Codes: B64D 39/00 Refuelling during flight filling or emptying fuel tanks B64D37/14

Abstract

An in-flight refueling system, alignment system, and method are provided for substantially automating the positioning and engagement of an in-flight refueling system carried by a first aircraft with respect to a refueling receptacle carried by a second aircraft so as to facilitate an in-flight refueling operation between the first and the second aircraft. More specifically, the present invention provides for the alignment of the in-flight refueling boom with the refueling receptacle such that an extendable nozzle may extend from the in-flight refueling boom and engage the refueling receptacle to initiate an in-flight refueling operation.

Claims

1. An in-flight refueling system comprising:

an in-flight refueling boom adapted to be carried by a first aircraft and comprising an extendable nozzle capable of extending therefrom, the extendable nozzle being adapted to engage a refueling receptacle carried by a second aircraft;

an imaging device operably engaged with the in-flight refueling boom and configured to capture an image of the refueling receptacle;

an alignment device operably engaged with the in-flight refueling boom and configured to determine and indicate alignment of the in-flight refueling boom with the refueling receptacle carried by the second aircraft by receiving a signal emitted by the second aircraft such that extension of the extendable nozzle will engage the refueling receptacle;

said second aircraft comprising a locator device configured to emit said signal; and

a controller operably engaged with the in-flight refueling boom and configured to be in communication with the alignment device and the imaging device, the controller further configured to be capable of receiving the image of the refueling receptacle and positioning the in-flight refueling boom in response to the image and stabilizing the in-flight refueling boom such that the in-flight refueling boom is in alignment with the refueling receptacle.

2. An in-flight refueling system according to claim 1, wherein the controller is further configured to extend the extendable nozzle to engage the refueling receptacle while the in-flight refueling boom is in alignment with the refueling receptacle.

3. An in-flight refueling system according to claim 2, further comprising a range-finding device operably engaged with the in-flight refueling boom and configured to be in communication with the controller, the range-finding device being further configured to determine a distance between the in-flight refueling boom and the refueling receptacle and provide the distance to the controllers the controller being further configured to be capable of receiving the distance and extending the extendable nozzle in response to the distance, so as to engage the refueling receptacle.

4. An in-flight refueling system according to claim 2, wherein, and the alignment device further comprising a receiver device configured to be capable of receiving the signal, reception of the signal by the receiver device being indicative of alignment between the in-flight refueling boom and the refueling receptacle, the alignment device being responsive to the signal so as to direct the controller to extend the extendable nozzle to engage the refueling receptacle.

5. An in-flight refueling system according to claim 4, wherein the signal is selected from the group consisting of:

a magnetic field;

a laser beam;

a light beam;

an infrared light beam; and

combinations thereof.

6. An alignment system adapted to facilitate the engagement of an extendable nozzle extending from an in-flight refueling boom carried by a first aircraft with a refueling receptacle carried by a second aircraft, the alignment system comprising:

an imaging device operably engaged with the in-flight refueling boom and configured to capture an image of the refueling receptacle;

said second aircraft comprising a locator device configured to emit said signal; and

an alignment device operably engaged with the in-flight refueling boom and configured to determine and indicate alignment of the in-flight refueling boom with the refueling receptacle carried by the second aircraft by receiving a signal emitted by the second aircraft such that extension of the extendable nozzle will engage the refueling receptacle; and

a controller operably engaged with the in-flight refueling boom and configured to be in communication with the alignment device and the imaging device, the controller further configured to be capable of receiving the image of the refueling receptacle and positioning the in-flight refueling boom in response to the image and stabilizing the in-flight refueling boom such that the in-flight refueling boom is in alignment with the refueling receptacle.

7. An alignment system according to claim 6, wherein the controller is further configured to extend the extendable nozzle to engage the refueling receptacle while the in-flight refueling boom is in alignment with the refueling receptacle.

8. An alignment system according to claim 7, further comprising a range-finding device operably engaged with the in-flight refueling boom and configured to be in communication with the controller, the range-finding device being further configured to determine a distance between the in-flight refueling boom and the refueling receptacle and provide the distance to the controller, the controller being further configured to be capable of receiving the distance and extending the extendable nozzle in response to the distance so as to engage the refueling receptacle.

9. An alignment system according to claim 7, wherein, and the alignment device further comprising a receiver device configured to be capable of receiving the signal, reception of the signal by the receiver device being indicative of alignment between the in-flight refueling boom and the refueling receptacle, the alignment device being responsive to the signal so as to direct the controller to extend the extendable nozzle to engage the refueling receptacle.

10. An alignment system according to claim 6, wherein the signal is selected from the group consisting of:

a magnetic field;

a laser beam;

a light beam;

an infra-red light beam; and

combinations thereof.

11. A method for facilitating an in-flight refueling operation between a first aircraft adapted to carry an in-flight refueling boom having an extendable nozzle being capable of extending therefrom and a second aircraft carrying a refueling receptacle, the method comprising:

capturing an image of the refueling receptacle;

determining that an extendable nozzle configured to extend from the in-flight refueling boom is in alignment with the refueling receptacle;

generating a signal and emitting said signal from said second aircraft;

receiving said signal emitted by the second aircraft at the first aircraft, wherein the reception of the signal by the receiver device is indicative of alignment between the in-flight refueling boom and the refueling receptacle;

positioning the in-flight refueling boom such that the in-flight refueling boom is in alignment with the refueling receptacle at least partially based on the image; and

stabilizing the in-flight refueling boom such that the in-flight refueling boom is in alignment with the refueling receptacle.

12. The method according to claim 11, further comprising extending the extendable nozzle to engage the refueling receptacle while the in-flight refueling boom is in alignment with the refueling receptacle.

13. The method according to claim 12, further comprising:

determining a distance between the in-flight refueling boom and the refueling receptacle; and

extending the extendable nozzle to engage the refueling receptacle based at least partially on the distance between the in-flight refueling boom and the refueling receptacle.