Development of a J-T Micro Compressor

[摘要] Lockheed Martin has developed and tested a space-quality compressor capable of delivering closed-loop gas flow with a high pressure ratio, suitable for driving a Joule-Thomson cold head. The compressor is based on a traditional "Oxford style" dual-opposed piston compressor with linear drive motors and flexure-bearing clearance-seal technology for high reliability and long life. This J-T compressor retains the approximate size, weight, and cost of the ultra-compact, 200 gram Lockheed Martin Pulse Tube Micro Compressor, despite the addition of a flow-rectifying system to convert the AC pressure wave into a steady flow.

[发布机构] Advanced Technology Center, Lockheed Martin Space Systems Company, Palo Alto; CA; 94304, United States^1;Santa Barbara Focalplane, Lockheed Martin Missiles and Fire Control, Goleta; CA; 93117, United States^2

[效力级别] 物理学 [学科分类] 材料科学（综合）

[关键词] Flexure-bearing;High pressure ratio;High reliability;Joule-Thomson;Linear drives;Lockheed Martin;Piston compressor;Pressure waves