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Title: High specific surface area aerogel cryoadsorber for vacuum pumping applications

Abstract

A cryogenic pumping system is provided, comprising a vacuum environment, an aerogel sorbent formed from a carbon aerogel disposed within the vacuum environment, and cooling means for cooling the aerogel sorbent sufficiently to adsorb molecules from the vacuum environment onto the aerogel sorbent. Embodiments of the invention include a liquid refrigerant cryosorption pump, a compressed helium cryogenic pump, a cryopanel and a Meissner coil, each of which uses carbon aerogel as a sorbent material.

Inventors:
 [1];  [2];  [1]
  1. Livermore, CA
  2. Brentwood, CA
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
873256
Patent Number(s):
US 6122920
Assignee:
United States of America as represented by United States (Washington, DC)
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
specific; surface; aerogel; cryoadsorber; vacuum; pumping; applications; cryogenic; provided; comprising; environment; sorbent; formed; carbon; disposed; cooling; means; sufficiently; adsorb; molecules; embodiments; liquid; refrigerant; cryosorption; pump; compressed; helium; cryopanel; meissner; coil; material; vacuum pumping; specific surface; cryogenic pump; cooling means; carbon aerogel; liquid refrigerant; sorbent material; vacuum environment; vacuum pump; pumping applications; sorption pump; /62/

Citation Formats

Hill, Randal M, Fought, Eric R, and Biltoft, Peter J. High specific surface area aerogel cryoadsorber for vacuum pumping applications. United States: N. p., 2000. Web.
Hill, Randal M, Fought, Eric R, & Biltoft, Peter J. High specific surface area aerogel cryoadsorber for vacuum pumping applications. United States.
Hill, Randal M, Fought, Eric R, and Biltoft, Peter J. Sat . "High specific surface area aerogel cryoadsorber for vacuum pumping applications". United States. https://www.osti.gov/servlets/purl/873256.
@article{osti_873256,
title = {High specific surface area aerogel cryoadsorber for vacuum pumping applications},
author = {Hill, Randal M and Fought, Eric R and Biltoft, Peter J},
abstractNote = {A cryogenic pumping system is provided, comprising a vacuum environment, an aerogel sorbent formed from a carbon aerogel disposed within the vacuum environment, and cooling means for cooling the aerogel sorbent sufficiently to adsorb molecules from the vacuum environment onto the aerogel sorbent. Embodiments of the invention include a liquid refrigerant cryosorption pump, a compressed helium cryogenic pump, a cryopanel and a Meissner coil, each of which uses carbon aerogel as a sorbent material.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {1}
}

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