Aircraft tire pressure loop link

• US 9,061,553 B2
• Filed: 05/22/2014
• Issued: 06/23/2015
• Est. Priority Date: 03/21/2008
• Status: Active Grant

• Current Assignee: Eldec Aerospace Corporation (Crane Company)
• Original Assignee: Eldec Corporation (Crane Company)
• Inventors: Lamping, Jeff, Finefrock, Mark
• Primary Examiner(s): Previl, Daniel
• Application Number:
  US14/285,111
• Publication Number:
  US 20140333456A1
• Time in Patent Office: 397 Days
• Field of Search: 340/945, 340/438, 340/425.5, 340/447, 340/442, 340/445, 340/448, 340/444, 3405721-5729, 340/568.1
• US Class Current: 1/1
• CPC Class Codes: B60C 2200/02 for aircrafts
• CPC Class Codes: B60C 23/0408 transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
• CPC Class Codes: B60C 23/0413 Wireless charging of active radio frequency circuits
• CPC Class Codes: B60C 23/0427 Near field transmission with inductive or capacitive coupling means
• CPC Class Codes: B60C 23/043 using transformer type signal transducers, e.g. rotary transformers

Abstract

The aircraft tire pressure loop link is formed of first and second single metal loops connected by parallel spaced apart metal shafts, and provides for coupling a magnetic field between a wheel hub coil and a tire pressure sensor coil to provide electromagnetic communication between a control unit connect to the wheel hub coil and a tire pressure sensor connected to the tire pressure sensor coil. The current induced in the first single metal loop travels the distance from the edge of the wheel axle coil to the periphery of the of the wheel rim to the second single metal loop, which generates the flux in the tire pressure sensor receiver coil necessary to power the tire pressure sensor.

Claims

1. An aircraft tire pressure loop link for electromagnetically coupling a magnetic field between a wheel axle electromagnetic transceiver coil and a tire pressure sensor receiver coil spaced apart from the wheel axle electromagnetic transceiver coil for powering a tire pressure sensor, comprising:

first and second parallel spaced apart electrically conductive connecting arms having first and second ends, said first and second parallel spaced apart electrically conductive connecting arms being formed of a metal having low magnetic permeability;

said first ends of said first and second parallel spaced apart electrically conductive connecting arms forming a first single metal loop configured to be mounted adjacent to the wheel axle electromagnetic transceiver coil; and

said second ends of said first and second parallel spaced apart electrically conductive connecting arms forming a second single metal loop configured to be mounted adjacent to a tire pressure sensor transceiver coil, said first and second parallel spaced apart electrically conductive connecting arms being electrically connected between said first single metal loop and said second single metal loop, said first and second parallel spaced apart electrically conductive connecting arms being configured to carry current generated in the first single metal loop from the wheel axle electromagnetic transceiver coil to the second single metal loop.

2. The aircraft tire pressure loop link of claim 1, wherein said metal having low magnetic permeability forming said first and second parallel spaced apart electrically conductive connecting arms is selected from the group consisting of aluminum and titanium.

3. The aircraft tire pressure loop link of claim 1, wherein said first and second parallel spaced apart electrically conductive connecting arms, said first single metal loop and said second single metal loop are configured to provide a low impedance electromagnetic signal path connection between the wheel axle electromagnetic transceiver drive coil and the tire pressure sensor transceiver coil.

4. The aircraft tire pressure loop link of claim 1, wherein said first and second parallel spaced apart electrically conductive connecting arms, said first single metal loop and said second single metal loop are configured to provide a low voltage electromagnetic signal path connection between the wheel axle electromagnetic transceiver drive coil and the tire pressure sensor transceiver coil.

5. The aircraft tire pressure loop link of claim 1, wherein said first and second parallel spaced apart electrically conductive connecting arms, said first single metal loop and said second single metal loop are rigid.

6. The aircraft tire pressure loop link of claim 1, further comprising a magnetic flux collector insert member electrically connected and attached to said first single metal loop, said magnetic flux collector insert member being configured to collect an impinging magnetic flux from the wheel axle electromagnetic transceiver coil.

7. The aircraft tire pressure loop link of claim 6, wherein said magnetic flux collector insert member is formed from a metal having high magnetic permeability.

8. The aircraft tire pressure loop link of claim 7, wherein said magnetic flux collector insert member is formed from a nickel-iron magnetic alloy.

9. An aircraft tire pressure loop link for electromagnetically coupling a magnetic field between a wheel axle electromagnetic transceiver coil and a tire pressure sensor receiver coil spaced apart from the wheel axle electromagnetic transceiver coil for powering a tire pressure sensor, comprising:

a wheel axle electromagnetic transceiver coil;

first and second parallel spaced apart electrically conductive connecting arms having first and second ends, said first and second parallel spaced apart electrically conductive connecting arms being formed of a metal having low magnetic permeability;

said first ends of said first and second parallel spaced apart electrically conductive connecting arms forming a first single metal loop configured to be mounted adjacent to the wheel axle electromagnetic transceiver coil; and

said second ends of said first and second parallel spaced apart electrically conductive connecting arms forming a second single metal loop configured to be mounted adjacent to a tire pressure sensor transceiver coil, said first and second parallel spaced apart electrically conductive connecting arms being electrically connected between said first single metal loop and said second single metal loop, said first and second parallel spaced apart electrically conductive connecting arms being configured to carry current generated in the first single metal loop from the wheel axle electromagnetic transceiver coil to the second single metal loop.

10. The aircraft tire pressure loop link of claim 9, wherein said metal having low magnetic permeability forming said first and second parallel spaced apart electrically conductive connecting arms is selected from the group consisting of aluminum and titanium.

11. The aircraft tire pressure loop link of claim 9, wherein said first and second parallel spaced apart electrically conductive connecting arms, said first single metal loop and said second single metal loop are configured to provide a low impedance electromagnetic signal path connection between the wheel axle electromagnetic transceiver drive coil and the tire pressure sensor transceiver coil.

12. The aircraft tire pressure loop link of claim 9, wherein said first and second parallel spaced apart electrically conductive connecting arms, said first single metal loop and said second single metal loop are configured to provide a low voltage electromagnetic signal path connection between the wheel axle electromagnetic transceiver drive coil and the tire pressure sensor transceiver coil.

13. The aircraft tire pressure loop link of claim 9, wherein said first and second parallel spaced apart electrically conductive connecting arms, said first single metal loop and said second single metal loop are rigid.

14. The aircraft tire pressure loop link of claim 9, further comprising a magnetic flux collector insert member electrically connected and attached to said first single metal loop, said magnetic flux collector insert member being configured to collect an impinging magnetic flux from the wheel axle electromagnetic transceiver coil.

15. The aircraft tire pressure loop link of claim 14, wherein said magnetic flux collector insert member is formed from a metal having high magnetic permeability.

16. The aircraft tire pressure loop link of claim 15, wherein said magnetic flux collector insert member is formed from a nickel-iron magnetic alloy.