A HIGH EFFICIENCY, LOW VIBRATION, LONG LIFE, PULSE TUBE SPACECRAFT CRYOCOOLER EMPLOYING FLEXURAL BEARINGS

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$125,000.00
Award Year:
1992
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Agency Tracking Number:
17018
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Stirling Technology Co
2952 George Washington Way, Richland, WA, 99352
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
() -
Business Contact:
() -
Research Institution:
n/a
Abstract
THIS PROJECT WILL DEVELOP AND TEST THE PREQUALIFICATION MODEL OF A PULSE-TUBE CRYOCOOLER USING A DUAL-OPPOSED COMPRESSOR WITH FLEXURAL BEARINGS. OBJECTIVES FOR THE CRYOFLEX(TM) CRYOGENIC COOLER ARE HIGH EFFICIENCY, LOW VIBRATION, A 10- TO 15-YEAR LIFESPAN, AND A DESIGN THAT CAN QUALIFY FOR SPACE FLIGHT. HIGH EFFICIENCY WILL BE ACHIEVED THROUGH THE OPTIMIZATION OF SYSTEM PARAMETERS USING A VALIDATED NUMERICAL OPTIMIZATION METHOD, CAREFUL SELECTION AND IMPLEMENTATION OF REGENERATOR TECHNOLOGY, OPTIMIZED ELECTRIC-MOTOR DESIGN, AND USE OF FLEXURAL BEARINGS FOR HIGH MECHANICAL EFFICIENCY. DUAL-OPPOSED PISTON TECHNOLOGY WITH GAS CLEARANCE SEALS WILL PROVIDE A 10-TO 15-YEAR LIFESPAN. PHASE I WILL PRODUCE A DEMONSTRATION AND EVALUATION UNIT OPTIMIZED AROUND A SUCCESSFUL EXISTING FLEXURAL-BEARING COMPRESSOR. PHASE II WILL PRODUCE A FULLY OPTIMIZED SINGLE-OR DUAL-STAGE PM. THIS PROJECT WILL DEVELOP AND TEST THE PREQUALIFICATION MODEL OF A PULSE-TUBE CRYOCOOLER USING A DUAL-OPPOSED COMPRESSOR WITH FLEXURAL BEARINGS. OBJECTIVES FOR THE CRYOFLEX(TM) CRYOGENIC COOLER ARE HIGH EFFICIENCY, LOW VIBRATION, A 10- TO 15-YEAR LIFESPAN, AND A DESIGN THAT CAN QUALIFY FOR SPACE FLIGHT. HIGH EFFICIENCY WILL BE ACHIEVED THROUGH THE OPTIMIZATION OF SYSTEM PARAMETERS USING A VALIDATED NUMERICAL OPTIMIZATION METHOD, CAREFUL SELECTION AND IMPLEMENTATION OF REGENERATOR TECHNOLOGY, OPTIMIZED ELECTRIC-MOTOR DESIGN, AND USE OF FLEXURAL BEARINGS FOR HIGH MECHANICAL EFFICIENCY. DUAL-OPPOSED PISTON TECHNOLOGY WITH GAS CLEARANCE SEALS WILL PROVIDE A 10-TO 15-YEAR LIFESPAN. PHASE I WILL PRODUCE A DEMONSTRATION AND EVALUATION UNIT OPTIMIZED AROUND A SUCCESSFUL EXISTING FLEXURAL-BEARING COMPRESSOR. PHASE II WILL PRODUCE A FULLY OPTIMIZED SINGLE-OR DUAL-STAGE PM.

* information listed above is at the time of submission.

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