Pod mounted refueling system

• US 5,667,170 A
• Filed: 12/07/1994
• Issued: 09/16/1997
• Est. Priority Date: 12/07/1994
• Status: Expired due to Fees

• Current Assignee: BAE Systems Land Systems Limited (BAE Systems Plc)
• Original Assignee: Tracor Flight Systems, Inc.
• Inventors: Roberts, Kenneth Dale, Briggs, Charles Whitford, Moss, William Gregory
• Primary Examiner(s): Kashnikow, Andres
• Assistant Examiner(s): MARQUIS, LISSI MOJICA
• Application Number:
  US08/350,787
• Time in Patent Office: 1,014 Days
• Field of Search: 244/135 R, 244/135 A, 244/136, 244/45 R
• US Class Current: 244/135.00A
• CPC Class Codes: B64D 39/02 Means for paying-in or out hose

Abstract

A refueling system mounted to an aircraft fuselage for transferring fuel from a tanker aircraft to a receiver aircraft. The refueling system including a pylon extending from the fuselage at a position aft of the main wing and having a refueling pod mounted thereto at an outboard location. A refueling hose is disposed within and extendable from the refueling pod and functions to transfer fuel from the refueling pod to the receiver aircraft. A means for transferring fuel from a fuel source, located within the aircraft, to the refueling hose is also provided. The pylon and refueling pod are configured so as to channel the refueling hose in a preferred direction to maximize safety during refueling. The channeling of the refueling hose is accomplished by mounting the refueling pod at an angle to the pylon, mounting the refueling pod at an angle to a horizontal plane, mounting the pylon at angle to the fuselage, or a combination of these mounting arrangements. The pylons are preferably supported by a sandwich-type reinforcement of the fuselage floor between the pylons.

Claims

1. A refueling system for an aircraft, the aircraft having a fuselage, a main wing extending from opposite sides of the fuselage, a stabilizer extending from opposite sides of the fuselage aft of the main wing, and a fuel source disposed within the aircraft, the refueling system comprising:

at least one pylon extending from a side of the fuselage at a position aft of the main wing and forward of the stabilizer;

said pylon having a refueling pod mounted thereon outboard of the fuselage;

a refueling hose disposed within and extendable from the at least one pod; and

means for transferring fuel from the fuel source to the refueling hose.

3. The refueling system according to claim 1 wherein the pylon and the pod have aerodynamic shapes.

4. The refueling system according to claim 3 wherein the aerodynamic shape of the pylon is symmetric for providing interchangeability between opposite sides of the aircraft.

5. The refueling system according to claim 3 wherein the pylon has a leading edge and a trailing edge, and wherein the leading edge has an aft sweep in a range between about 0 degrees and about 80 degrees.

6. The refueling system according to claim 5 wherein the leading edge of the pylon has an aft sweep in a range between about 20 degrees and about 45 degrees.

7. The refueling system according to claim 6 wherein the leading edge of the pylon has an aft sweep of about 34 degrees.

8. The refueling system according to claim 1 further comprising an exit port formed in the refueling pod for channeling the refueling hose during extension in a prescribed direction.

9. The refueling system according to claim 8 wherein the refueling pod has a longitudinal axis and the refueling hose is channeled at an angle with respect to said longitudinal axis of the refueling pod.

10. The refueling system according to claim 9 wherein the refueling hose is channeled at a angle of between about 0 degrees and about 90 degrees with respect to the longitudinal axis of the refueling pod.

11. The refueling system according to claim 10 wherein the refueling hose is channeled at a angle of between about 5 degrees and about 30 degrees with respect to the longitudinal axis of the refueling pod.

12. The refueling system according to claim 11 wherein the refueling hose is channeled at an angle of about 15 degrees with respect to the longitudinal axis of the refueling pod.

13. The refueling system according to claim 8 wherein the refueling hose is channeled along a plane extending laterally from the refueling pod and at an angle to a horizontal plane.

14. The refueling system according to claim 13 wherein the refueling hose is channeled along a plane at an angle of between about 0 degrees and about 90 degrees to the horizontal plane.

15. The refueling system according to claim 14 wherein the refueling hose is channeled along a plane at an angle of between about 10 degrees and about 40 degrees to the horizontal plane.

16. The refueling system according to claim 15 wherein the refueling hose is channeled along a plane at an angle of about 30 degrees to the horizontal plane.

17. The refueling system according to claim 1 wherein at least a portion of the pylon forms a dihedral angle with respect to a horizontal plane.

18. The refueling system according to claim 1 wherein the pylon is mounted to the fuselage at a dihedral angle to a horizontal plane.

26. The refueling system according to claim 4 wherein the symmetric airfoil of the pylon is a NACA 0010-35 airfoil.

2. A refueling system for an aircraft, the aircraft having a fuselage, a main wing extending from opposite sides of the fuselage, a stabilizer extending from opposite sides of the fuselage aft of the main wing, and a fuel source disposed within the aircraft, the refueling system comprising:

two pylons disposed on opposite sides of the fuselage, the pylons being positioned aft of the main wing and forward of the stabilizer;

each pylon having a refueling pod mounted thereon outboard of the fuselage;

a refueling hose disposed within and extendable from each pod; and

means for transferring fuel from the fuel source to the refueling hose.

19. A refueling system for an aircraft, the aircraft having a fuselage, a main wing extending from opposite sides of the fuselage, a stabilizer extending from opposite sides of the fuselage aft of the main wing, and an fuel source disposed within the aircraft, the refueling system comprising:

at least one pylon extending from the fuselage at a position aft of the main wing and at an angle to a horizontal plane between about 20 degrees and about 40 degrees;

said pylon having a refueling pod mounted thereon outboard of the fuselage;

a refueling hose disposed within and extendable from the at least one pod; and

means for transferring fuel from the fuel source to the refueling hose.

20. The refueling system according to claim 19 wherein the angle with respect to the horizontal that the pylon is mounted is between about 26 degrees and about 30 degrees.

21. An aircraft capable of dispensing fuel in-flight, the aircraft comprising:

a fuselage;

a main wing extending from opposite sides of the fuselage;

an empennage mounted aft of the main wing and extending from opposite sides of the fuselage;

at least one aerodynamic pylon extending laterally from the side of the fuselage, the pylon being mounted aft of the main wing and forward of the empennage;

a refueling pod mounted on the pylon and having a refueling hose disposed in and extendable from the refueling pod;

a fuel source located within the aircraft;

means for transferring fuel from the fuel source to the refueling hose; and

means for supporting the pylon on the fuselage.

22. The aircraft according to claim 21 wherein the means for supporting the pylon includes a reinforced floor mounted within the fuselage, aft of the main wing and forward of the empennage, and mounting lugs extending out of the fuselage, and wherein the pylon has corresponding mounting lugs affixed to the pylon which mate with the mounting lugs extending from the fuselage.

23. An aircraft capable of dispensing fuel in-flight, the aircraft comprising:

a fuselage;

a main wing extending from opposite sides of the fuselage;

an empennage mounted aft of the main wing and extending from opposite sides of the fuselage;

two aerodynamic pylons mounted on opposite sides of the fuselage, the pylons being mounted aft of the main wing;

a refueling pod mounted on each pylon and having a refueling hose disposed in and extendable from the refueling pod;

a fuel source located within the aircraft;

means for transferring fuel from the fuel source to the refueling hose; and

means for supporting each pylon on the fuselage including a reinforced floor mounted within the fuselage, aft of the main wing and forward of the empennage, the reinforced floor extending between the two pylons and comprising sandwich type structure, and mounting lugs extending out of the fuselage, and wherein the pylon has corresponding mounting lugs affixed to the pylon which mate with the mounting lugs extending from the fuselage.

24. A refueling system for an aircraft, the aircraft having a fuselage, a main wing extending from opposite sides of the fuselage at a forward location, a stabilizer extending from opposite sides of the fuselage aft of the main wing, and a fuel source disposed within the aircraft, the refueling system comprising:

two aerodynamic pylons extending from opposite sides of the fuselage at a position aft of the main wing and forward of the stabilizer, the pylons having an aft sweep;

a pod mounted to the outboard end of each pylon, the pod including a refueling hose disposed within and extendable from each pod, and an exit port for channeling the refueling hose in a predetermined direction away from the aircraft fuselage; and

means for transferring fuel from the fuel source to the refueling hose.

25. A refueling system for an aircraft, the aircraft having a fuselage, a main wing extending from opposite sides of the fuselage, a stabilizer extending from opposite sides of the fuselage aft of the main wing, and a fuel source disposed within the aircraft, the refueling system comprising:

two pylons extending from the fuselage at a position aft of the main wing and forward of the horizontal stabilizer, the pylons having a configuration which minimizes drag and lift;

means for directing a refueling hose in a predetermined direction, said directing means being attached to one of the pylons, the refueling hose being extendable out of and retractable into said directing means;

means for transferring fuel from the fuel source to the refueling hose; and

means for monitoring and controlling the transferring of fuel.