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Title: Continuous cryopump with a device for regenerating the cryosurface

Abstract

A high throughput continuous cryopump is provided. The cryopump (10) incorporates an improved method for regenerating the cryopumping surface (22) while the pump is in continuous operation. The regeneration of the cryopumping surface (22) does not thermally cycle the pump, and to this end a small chamber (91) connected to a secondary pumping source (60) serves to contain and exhaust frost removed from the cryopumping surface (22) during such regeneration. The frost is exhausted at a rate substantially independent of the speed of the cryopump which enhances the capability of the pump to achieve a high compression ratio and allow the pump to operate continuously while the cryopumping surface is being regenerated.

Inventors:
 [1]
  1. Rte. 5, Box 101-B, Clinton, TN 37716
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
OSTI Identifier:
866496
Patent Number(s):
4724677
Assignee:
Foster, Christopher A. (Rte. 5, Box 101-B, Clinton, TN 37716)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
F - MECHANICAL ENGINEERING F04 - POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS F04B - POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS
DOE Contract Number:  
W-7405-ENG-26
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
continuous; cryopump; device; regenerating; cryosurface; throughput; provided; 10; incorporates; improved; method; cryopumping; surface; 22; pump; operation; regeneration; thermally; cycle; chamber; 91; connected; secondary; pumping; source; 60; serves; contain; exhaust; frost; removed; exhausted; rate; substantially; independent; speed; enhances; capability; achieve; compression; ratio; allow; operate; continuously; regenerated; continuous operation; improved method; substantially independent; compression ratio; pumping source; continuous cryopump; pumping surface; /62/96/165/417/

Citation Formats

Foster, Christopher A. Continuous cryopump with a device for regenerating the cryosurface. United States: N. p., 1988. Web.
Foster, Christopher A. Continuous cryopump with a device for regenerating the cryosurface. United States.
Foster, Christopher A. Fri . "Continuous cryopump with a device for regenerating the cryosurface". United States. https://www.osti.gov/servlets/purl/866496.
@article{osti_866496,
title = {Continuous cryopump with a device for regenerating the cryosurface},
author = {Foster, Christopher A},
abstractNote = {A high throughput continuous cryopump is provided. The cryopump (10) incorporates an improved method for regenerating the cryopumping surface (22) while the pump is in continuous operation. The regeneration of the cryopumping surface (22) does not thermally cycle the pump, and to this end a small chamber (91) connected to a secondary pumping source (60) serves to contain and exhaust frost removed from the cryopumping surface (22) during such regeneration. The frost is exhausted at a rate substantially independent of the speed of the cryopump which enhances the capability of the pump to achieve a high compression ratio and allow the pump to operate continuously while the cryopumping surface is being regenerated.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1988},
month = {1}
}

Patent:

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