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:
-
- Livermore, CA
- Brentwood, CA
- Issue Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- OSTI Identifier:
- 873256
- Patent Number(s):
- 6122920
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F04 - POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS F04B - POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS
- 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 = {Sat Jan 01 00:00:00 EST 2000},
month = {Sat Jan 01 00:00:00 EST 2000}
}
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