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A compact hydride absorption refrigeration system with few moving parts for 10 Kelvin operation is disclosed and comprises liquid hydrogen producing means in combination with means for solidifying and subliming the liquid hydrogen produced. The liquid hydrogen is sublimed at about 10 Kelvin. By using a symmetrical all hydrogen redundant loop system

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United States Patent [ii] [191 Patent Number: Date of Patent: Jones [45] [54] TEN DEGREE KELVIN HYDRIDE REFRIGERATOR 3,545,226 3,967,465 4,111,002 4,161,211 4,178,987 4,185,979 4,214,699 [75] Inventor: Jack A.
Jones, North Hollywood, Calif. [73] Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration, Washington, D.C. [21] Appl.
No.: 701,486 [22] Filed: .
F17C 11-00 .
62-48; 62-384; 62-514 R 62-514 R, 48, 384 Field of Search . f511 Int.
(3.4 [52] U.S.
C1. L a [58] [561 References Cited U.S.
PATENT DOCUMENTS 230-69 3,144,200 8-1964 Taylor . W39.46 3,147,593 9-1964 Garrett . 62-239 3,253,423 5-1966 Sonnabend . 3,350,229 10-1967 Justt . 62-48 3,366,680 1-1968 Tward . 62-514 R Newell . 62-384 62-48 Asselman et al Van Mal et al 62-514 R Duffy et al 62-48 12-1979 Bowman et al 62-48 62-48 1-1980 Woolley . 7-1980 Buchner et ai 62-48 Primary Examiner-Ronald C.
Capossela Attorney, Agent, or Firm-Paul F.
McCaul; John Manning; Thomas H.
Jones ABSTRACT A compact hydride absorption refrigeration system with few moving parts for lo- Kelvin operation is disclosed and comprises liquid hydrogen producing means in combination with means for solidifying and subliming the liquid hydrogen produced.
The liquid hydrogen is sublimed at about 10- Kelvin.
By using a symmetrical all hydrogen redundant loop system, a lo- Kelvin refrigeration system can be operated for many years with only a fraction of the power required for prior art systems. 11Claims...






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