Kevin W Chen

US Patent:

7161802, Jan 9, 2007

Filed:

Aug 2, 2002

Appl. No.:

10/211104

Inventors:

Richard M. Weber - Prosper TX, US
Kevin W. Chen - McKinney TX, US

Assignee:

Raytheon Company - Waltham MA

International Classification:

H05K 7/20

US Classification:

361699, 165 804, 16510433, 361700

Abstract:

A thermal management system is provided. The system has a thermal management apparatus which may be disposed adjacent to and connected with a heat source. The thermal management apparatus may include a body having a porous fluid transfer element disposed therein. The body may also have a heat transfer fluid disposed therein. The heat source may create relatively liquid-rich and liquid-poor regions within the thermal management apparatus. The wicking action of the porous fluid transfer element may be used to force heat transfer fluid from liquid-rich regions toward liquid-poor regions.

US Patent:

7686248, Mar 30, 2010

Filed:

Sep 20, 2005

Appl. No.:

11/230972

Inventors:

Richard M. Weber - Prosper TX, US
Kevin W. Chen - McKinney TX, US
Michael M. Liggett - Allen TX, US
Eric Krumin - Plano TX, US
Gray E. Fowler - Allen TX, US

Assignee:

Raytheon Company - Waltham MA

International Classification:

B64C 1/38

US Classification:

244117A

Abstract:

According to one embodiment of the invention, an apparatus comprises a passive cooling system and a portion of an air vehicle which receives thermal energy. The passive cooling system is disposed adjacent the portion of the air vehicle and comprises a fluid transfer chamber. A fluid transfer element and a coolant are disposed within the fluid transfer chamber. The fluid transfer element wicks a portion of the coolant towards the portion of the air vehicle. The portion of the coolant wicked towards the portion of the air vehicle absorb at least a portion of the thermal energy in a boiling heat transfer.

US Patent:

7934386, May 3, 2011

Filed:

Feb 25, 2008

Appl. No.:

12/036468

Inventors:

Kerrin A. Rummel - Richardson TX, US
Kevin W. Chen - McKinney TX, US

Assignee:

Raytheon Company - Waltham MA

International Classification:

F25D 17/02

US Classification:

62118, 622592, 62527

Abstract:

According to one embodiment of the disclosure, a cooling system for a heat generating structure comprises a first cooling segment and a second cooling segment. The first cooling segment and the second cooling segment each respectively comprise a cooling segment conduit and at least one cooling segment tube. The cooling segment conduits are operable to receive a fluid coolant and dispense of the fluid coolant after the fluid coolant has received thermal energy. The at least one cooling segment tubes are in thermal communication with both the cooling segment conduits and the heat generating structure. The at least one cooling segment tubes have a cooling fluid operable to transfer thermal energy from the heat generating structure to the cooling segment conduits. The cooling segment conduits transfer thermal energy from the cooling fluid to the fluid coolant. A heat transfer rate associated with the first cooling segment is substantially similar to a heat transfer rate associated with the second cooling segment.

US Patent:

7940524, May 10, 2011

Filed:

Oct 1, 2007

Appl. No.:

11/865475

Inventors:

Kerrin A. Rummel - Richardson TX, US
Gregory Schaefer - McKinney TX, US
Kevin W. Chen - McKinney TX, US
Brandon H. Allen - Wylie TX, US
Daniel J. Weissman - Allen TX, US

Assignee:

Raytheon Company - Waltham MA

International Classification:

H05K 7/20

US Classification:

361689, 361688, 361699, 361700, 343709, 343777, 343874, 4555621

Abstract:

A self-contained cooling system for a phased array antenna includes a cooling structure, a heat exchanger, and a pump for circulating a fluid coolant around a coolant loop. The cooling system receives power from a remote power source. The cooling structure includes a plurality of coolant inlet pipes, a plurality of coolant outlet pipes, and a plurality of cooling platforms. Each of the cooling platforms has a coolant channel that begins at one of the plurality of coolant inlet pipes, terminates at one of the plurality of coolant outlet pipes, and provides a flow path for a fluid coolant. The cooling structure further includes at least one base plate releasably mounted to at least one of the plurality of cooling platforms. One or more antenna elements associated with the phased array antenna are mounted on the base plate releasably mounted to at least one of the plurality of cooling platforms. The flow of the fluid coolant through the coolant channel dissipates thermal energy produced by the one or more antenna elements.

US Patent:

8045329, Oct 25, 2011

Filed:

Apr 29, 2009

Appl. No.:

12/432496

Inventors:

Kevin W. Chen - McKinney TX, US
William P. Harokopus - McKinney TX, US
Patrick W. Cunningham - McKinney TX, US

Assignee:

Raytheon Company - Waltham MA

International Classification:

H05K 7/20

US Classification:

361699, 361689, 343872

Abstract:

According to one embodiment, a heat dissipation system includes an elongated radar absorbing member configured with a thermal dissipation mechanism. The radar absorbing member extends proximate a junction of a microwave antenna enclosure that houses an antenna and a radome that covers an opening in the microwave antenna enclosure. The radar absorbing member absorbs electro-magnetic energy incident upon the junction. The thermal dissipation mechanism absorbs heat generated by the absorbed electro-magnetic energy.

US Patent:

20100206523, Aug 19, 2010

Filed:

Jul 29, 2009

Appl. No.:

12/511667

Inventors:

Kevin W. Chen - McKinney TX, US
Brandon H. Allen - Wylie TX, US
Kerrin A. Rummel - Richardson TX, US
Gary L. Seiferman - Plano TX, US
Richard M. Weber - Prosper TX, US
William P. Harokopus - McKinney TX, US

Assignee:

Raytheon Company - Waltham MA

International Classification:

F28D 15/00
H01Q 1/42

US Classification:

16510433, 343872

Abstract:

According to one embodiment, a radome includes two dielectric layers separated by an internal layer. The internal layer is configured with an internal cooling system including a fluid channel that receives a fluid through an inlet port, conducts heat from the radome to the fluid, and exhausts the heated fluid through an outlet port.