Summary
DEVELOPMENT OF CRYOGENIC REFRIGERATORS (CRYOCOOLERS) CAPABLE OF OPERATING FOR OVER THREE YEARS WITHOUT MAINTENANCE IS BEING SPONSORED BY THE FLIGHT DYNAMICS LABORATORY FOR SEVERAL AIR FORCE MISSIONS. FUTURE CRYOCOOLERS FOR SUPERCONDUCTING DEVICES WILL NEED SIMILAR HIGH RELIABILITY AND DURABILITY. HIGHLY RELIABLE AND DURABLE CRYOCOOLERS ARE DEVELOPED IN A CAREFULLY PLANNED AND CONTROLLED PROCESS. THE PRINCIPAL LONGLIFE CRYOCOOLERS BEING DEVELOPED BY THE FLIGHT DYNAMICS LABORATORY ARE THE VUILLEUMIER (VM), TURBO-BRAYTON AND ROTARY RECIPROCATING REFRIGERATORS. THESE MACHINES EITHER USE GAS FILM BEARINGS TO AVOID RUBBING CONTACT OR HAVE LIGHTLY LOADED BEARINGS AND SEALS WITH LOW WEAR RATES. INCLUDES DETAILED ANALYSIS OF STRESS LEVELS FOR ALL PARTS OF THE COOLER, ADEQUATE QUALITY CONTROLS, CONTAMINATION CONTROL, AND RELIABILITY ANALYSIS.
Details
- Original title: DEVELOPMENT APPROACHES FOR LONG-LIFE CRYOCOOLERS.
- Record ID : 1982-0344
- Languages: English
- Publication date: 1980
- Source: Source: NBS spec. Publ./ Conf. NBS-IIF, Boulder
n. 607; 21-29; 3 fig.; 5 ref. - Document available for consultation in the library of the IIR headquarters only.
Indexing
- Themes: Small-scale cryogenic applications, cryocoolers
- Keywords: Helium; Contamination; Brayton; Vuilleumier; Wear; Design; Reliability; Development; Cycle; Cryocooler; Cryogenics; Component
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