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Title: Continuously pumping and reactivating gas pump

Abstract

Apparatus for continuous pumping using cycling cryopumping panels. A plurality of liquid helium cooled panels are surrounded by movable nitrogen cooled panels that alternatively expose or shield the helium cooled panels from the space being pumped. Gases condense on exposed helium cooled panels until the nitrogen cooled panels are positioned to isolate the helium cooled panels. The helium cooled panels are incrementally warmed, causing captured gases to accumulate at the base of the panels, where an independant pump removes the gases. After the helium cooled panels are substantially cleaned of condensate, the nitrogen cooled panels are positioned to expose the helium cooled panels to the space being pumped.

Inventors:
;
OSTI Identifier:
5315737
Application Number:
ON: DE84005987
Assignee:
EDB-84-037428
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; CRYOPUMPS; DESIGN; CRYOGENIC FLUIDS; HELIUM; NITROGEN; ELEMENTS; EQUIPMENT; FLUIDS; GASES; LABORATORY EQUIPMENT; NONMETALS; PUMPS; RARE GASES; VACUUM PUMPS; 420700* - Engineering- Vacuum Engineering- (-1987)

Citation Formats

Batzer, T H, and Call, W R. Continuously pumping and reactivating gas pump. United States: N. p., Web.
Batzer, T H, & Call, W R. Continuously pumping and reactivating gas pump. United States.
Batzer, T H, and Call, W R. . "Continuously pumping and reactivating gas pump". United States.
@article{osti_5315737,
title = {Continuously pumping and reactivating gas pump},
author = {Batzer, T H and Call, W R},
abstractNote = {Apparatus for continuous pumping using cycling cryopumping panels. A plurality of liquid helium cooled panels are surrounded by movable nitrogen cooled panels that alternatively expose or shield the helium cooled panels from the space being pumped. Gases condense on exposed helium cooled panels until the nitrogen cooled panels are positioned to isolate the helium cooled panels. The helium cooled panels are incrementally warmed, causing captured gases to accumulate at the base of the panels, where an independant pump removes the gases. After the helium cooled panels are substantially cleaned of condensate, the nitrogen cooled panels are positioned to expose the helium cooled panels to the space being pumped.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {},
month = {}
}