Active cooling of high speed seeker missile domes and radomes

• US 8,933,860 B2
• Filed: 06/12/2013
• Issued: 01/13/2015
• Est. Priority Date: 06/12/2012
• Status: Expired due to Fees

• Current Assignee: Integral Laser Solutions, LLC, Curators of the University of Missouri (University of Missouri)
• Original Assignee: Integral Laser Solutions Incorporated, Curators of the University of Missouri (University of Missouri)
• Inventors: Schlie, LaVerne Arthur, Ma, Hongbin
• Primary Examiner(s): FORD, JOHN K
• Application Number:
  US13/916,271
• Publication Number:
  US 20140190666A1
• Time in Patent Office: 580 Days
• Field of Search: 165/41, 165/104.14, 165/104.22, 165/104.29, 165/104.33, 343/872, 343/705, 343/708, 343/704, 244/171.8, 244/117.A, 244/3.15, 244/3.16, 361/689, 361/699, 361/700
• US Class Current: 343/872
• CPC Class Codes: F28D 15/0266 with separate evaporating and condensing chambers connected by at least one conduit; Loop-type heat pipes; with multiple or common evaporating or condensing chambers F28D15/043 takes precedence
• CPC Class Codes: F41G 11/00 Details of sighting or aiming apparatus; Accessories tools for adjustment of sights F41G1/545

Abstract

A thermal management system and method for active cooling of high speed seeker missile domes or radomes comprising bonding to an IR dome or RF radome a heat pipe system having effective thermal conductivity of 10-20,000 W/m*K and comprising one or more mechanically controlled oscillating heat pipes, employing supporting integrating structure including a surface bonded to the IR dome or RF radome that matches the coefficient of thermal expansion the dome or radome material and that of said one or more mechanically controlled oscillating heat pipes, and operating the heat pipe system to cool the IR dome or RF radome while the missile is in flight.

Claims

1. A thermal management system for active cooling of high speed seeker missile domes or radomes comprising:

a heat pipe system having effective thermal conductivity of 10-20,000 W/m*K and comprising one or more mechanically controlled oscillating heat pipes;

an IR dome or RF radome bonded to said one or more mechanically controlled oscillating heat pipes; and

supporting integrating structure including a surface bonded to the IR dome or RF radome that matches the coefficient of thermal expansion of the dome or radome material and that of said one or more mechanically controlled oscillating heat pipes.

2. The system of claim 1 additionally comprising a pump to convectively move working fluid through said heat pipe system.

3. The system of claim 2 wherein the working fluid absorbs a pre-identified electromagnetic frequency to enhance performance of the dome or radome.

4. The system of claim 2 wherein the working fluid comprises a nanofluid.

5. The system of claim 4 wherein the working fluid comprises a diamond nanofluid.

6. The system of claim 1 additionally comprising a selective IR filter of a pre-identified wavelength of blackbody for missile operations.

7. The system of claim 1 wherein in operation said system reduces transient thermal optical performance conditions for the IR dome or RF radome.

8. The system of claim 1 additionally comprising an optical material having thermal K>

=10,000 W/m*K applied to the dome or radome.

9. The system of claim 1 additionally comprising an ablative thin film to remove thermal heat.

10. The system of claim 1 additionally comprising one or more micro-lenses for a diffuser of IR or RF radiation to minimize diffractive effects arising from structural configuration of said heat pipe system on a back side of the dome or radome transmissive material.

11. A thermal management method for active cooling of high speed seeker missile domes or radomes comprising:

bonding to an IR dome or RF radome a heat pipe system having effective thermal conductivity of 10-20,000 W/m*K and comprising one or more mechanically controlled oscillating heat pipes;

employing supporting integrating structure including a surface bonded to the IR dome or RF radome that matches the coefficient of thermal expansion of the dome or radome material and that of said one or more mechanically controlled oscillating heat pipes; and

operating the heat pipe system to cool the IR dome or RF radome while the missile is in flight.

12. The method of claim 11 additionally comprising pumping to convectively move working fluid through the heat pipe system.

13. The method of claim 12 wherein the working fluid absorbs a pre-identified electromagnetic frequency to enhance performance of the dome or radome.

14. The method of claim 12 wherein the working fluid comprises a nanofluid.

15. The method of claim 14 wherein the working fluid comprises a diamond nanofluid.

16. The method of claim 11 additionally comprising employing a selective IR filter of a pre-identified wavelength of blackbody for missile operations.

17. The method of claim 11 wherein the method reduces transient thermal optical performance conditions for the IR dome or RF radome.

18. The method of claim 11 additionally comprising employing an optical material having thermal K>

=10,000 W/m*K applied to the dome or radome.

19. The method of claim 11 additionally comprising employing an ablative thin film to remove thermal heat.

20. The method of claim 11 additionally comprising employing one or more micro-lenses for a diffuser of IR or RF radiation to minimize diffractive effects arising from structural configuration of the heat pipe system on a back side of the dome or radome transmissive material.