Integrated Circulator for Regenerative Cryocoolers

Award Information
Agency: Department of Defense
Branch: Missile Defense Agency
Contract: W9113M-10-P-0057
Agency Tracking Number: B093-020-0291
Amount: $99,961.00
Phase: Phase I
Program: SBIR
Awards Year: 2010
Solicitation Year: 2009
Solicitation Topic Code: MDA09-020
Solicitation Number: 2009.3
Small Business Information
1367 Camino Robles Way, San Jose, CA, 95120
DUNS: 938515913
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 James Maddocks
 Principle Investigator
 (608) 265-4246
Business Contact
 Ali Kashani
Title: Program Director
Phone: (408) 507-0906
Research Institution
The problem of cooling gimbaled optics and LWIR focal planes can be solved by placing the entire cryocooler on gimbal. However, a large mass penalty is paid for such configurations, because the gimbal itself must grow in size and mass in order to support the cryocooler. To address the requirements of cooling across a two-axis gimbal, flexible joint, or to multiple locations on a spacecraft, we propose to develop a lightweight, continuous-flow cooling loop integrated with a Pulse Tube Cryocooler (PTC). Because the cooling loop can be made of capillary tubing, it is easily made mechanically compliant by means of coiling thus allowing the cryocooler to be located off gimbal. Removing the cryocooler from the gimbal using the proposed Integrated Circulator (IC) will result in less mass on gimbal which in turn will provide for more agile (and capable) sensors, easier to integrate into spacecraft.

* Information listed above is at the time of submission. *

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