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Large Capacity, Multi-Cylinder Cryocooler for High Temperature Superconductor…

Award Information

Department of Energy
Award ID:
Program Year/Program:
2006 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
1840 Terminal Drive  Richland , WA -
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2006
Title: Large Capacity, Multi-Cylinder Cryocooler for High Temperature Superconductor (HTS) Applications
Agency: DOE
Contract: DE-FG02-06ER84650
Award Amount: $99,790.00


High Temperature Superconductor (HTS) technologies, currently under development by DOE and its partners, offer high efficiency power generation and transmission. Cryocoolers, a critical enabler for HTS products, are underdeveloped for this application, being too small, unreliable, costly, and inefficient. The lack of a more suitable cryocooler could impede the commercialization of HTS products. This project will develop a multi-cylinder, free-piston Stirling cryocooler expressly to suit the needs of HTS products. The approach will build on previously developed technology for Stirling cycle engines and cryocoolers, in which the size and efficiency advantages of kinematic machines were combined with the high-reliability and low-maintenance characteristics of free-piston machines. In Phase I, detailed analytical modelng will be performed, and extensive evaluations (of piston, bearing, seal, and linear motor configurations) will be conducted. A detailed conceptual design for a complete multi-cylinder, free-piston, Stirling cryocooler system, which can be packaged as a turn-key solution for HTS integrators, also will be developed. The design will be targeted to provide 300 W of heat lift at 65K, with under 3.5 kW electrical input. In Phase II, a full-scale prototype will be demonstrated. Commercial Applications and Other Benefits as described by the awardee: The multi-cylinder, free-piston Stirling cryocooler should be a differentiated product for HTS integrators due to its compact size, maintenance-free reliability, and high efficiency. Additional applications include small-scale gas liquefaction, large zero-boil-off systems, and military uses.

Principal Investigator:

Maurice A. White

Business Contact:

Kevin G. Bernhart
Small Business Information at Submission:

Infinia Corporation
6811 W. Okanogan Place Kennewick, WA 99336

EIN/Tax ID: 911319589
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No