Accession Number : ADB205080


Title :   Advanced Compressor for Long Life Space Cryocoolers


Descriptive Note : Final rept. Oct 91-Jul 94


Corporate Author : MECHANICAL TECHNOLOGY INC LATHAM NY


Personal Author(s) : Curwen, Peter W ; Waldron, Warren D


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/b205080.pdf


Report Date : Nov 1994


Pagination or Media Count : 142


Abstract : The objective of the program was to demonstrate the advantages (high reliability, low weight, and long life) of hermetically sealed diaphragm-type compressors intended for space cryocooler applications. To accomplish this objective, a proof-of-concept compressor was designed, built, and tested. The compressor was designed to drive a 30-k, O.5-W orifice-pulse-tube cryocooler under development by the National Institute of Standards and Technology (NIST). Compressor design requirements were developed around the pulse-tube cryocooler requirements in an effort to optimize overall cryocooler performance. During the program. excellent test results were obtained. With the compressor operating within 1.2 percent of its design frequency, stroke, mean pressure, pressure amplitude, and phase angle, the pressure volume (nv power and estimated compressor efficiency exceeded design values by approximately 4 percent.


Descriptors :   *THERMAL PROPERTIES , *COMPRESSORS , *BELLOWS , ANGLES , SPACE TECHNOLOGY , STRESS ANALYSIS , COOLING , LIGHTWEIGHT , LONG LIFE , HELIUM , AMPLITUDE , CRYOGENICS , HIGH RELIABILITY , DIAPHRAGMS(MECHANICS) , HYDRAULIC FLUIDS , SPACE BASED


Subject Categories : Hydraulic and Pneumatic Equipment
      Thermodynamics
      Lubricants and Hydraulic Fluids


Distribution Statement : APPROVED FOR PUBLIC RELEASE