Improved cycling cryopump

Title: Improved cycling cryopump

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Abstract

The present invention is designed to achieve continuous high efficiency cryopumping of a vacuum vessel by improving upon and combining in a novel way the cryopumping in a novel way the cryopumping methods. The invention consists of a continuous operation cryopump, with movable louvres, with a high efficiency pumping apparatus. The pumping apparatus includes three cryogenic tubes. They are constructed of a substance of high thermal conductivity, such as aluminum and their exterior surfaces are cryogenic condensing surfaces. Through their interior liquid or gaseous helium from two reservoirs can be made to flow, alternately promoting extreme cooling or allowing some warming.

Inventors:: Batzer, T.H.; Call, W.R.

Issue Date:: 1984-12-04

Research Org.:: Lawrence Livermore National Lab., CA (USA)

OSTI Identifier:: 5141708

Application Number:: ON: DE85017732

Assignee:: Dept. of Energy ERA-10-053079; EDB-85-169321

DOE Contract Number:: W-7405-ENG-48

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; CRYOPUMPS; SPECIFICATIONS; ALUMINIUM; DESIGN; EFFICIENCY; THERMONUCLEAR REACTORS; TUBES; ELEMENTS; EQUIPMENT; LABORATORY EQUIPMENT; METALS; PUMPS; VACUUM PUMPS; 700209* - Fusion Power Plant Technology- Component Development & Materials Testing

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                    Batzer, T.H., and Call, W.R. Improved cycling cryopump.  United States: N. p., 1984. 
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                    Batzer, T.H., & Call, W.R. Improved cycling cryopump.  United States.

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                    Batzer, T.H., and Call, W.R. Tue .  
        "Improved cycling cryopump".  United States.

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@article{osti_5141708,

  title        = {Improved cycling cryopump},

  author       = {Batzer, T.H. and Call, W.R.},

  abstractNote = {The present invention is designed to achieve continuous high efficiency cryopumping of a vacuum vessel by improving upon and combining in a novel way the cryopumping in a novel way the cryopumping methods. The invention consists of a continuous operation cryopump, with movable louvres, with a high efficiency pumping apparatus. The pumping apparatus includes three cryogenic tubes. They are constructed of a substance of high thermal conductivity, such as aluminum and their exterior surfaces are cryogenic condensing surfaces. Through their interior liquid or gaseous helium from two reservoirs can be made to flow, alternately promoting extreme cooling or allowing some warming.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1984},

  month        = {12}

}

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