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U.S. Department of Energy
Office of Scientific and Technical Information

Continuously pumping and reactivating gas pump

Patent ·
OSTI ID:5315737
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.
DOE Contract Number:
W-7405-ENG-48
Assignee:
EDB-84-037428
Patent Number(s):
None
Application Number:
ON: DE84005987
OSTI ID:
5315737
Country of Publication:
United States
Language:
English