Low heat-leak cryogenic envelope
Abstract
A plurality of cryogenic envelope sections are joined together to form a power transmission line. Each of the sections is comprised of inner and outer tubes having multilayer metalized plastic spirally wrapped within a vacuum chamber formed between the inner and outer tubes. A refrigeration tube traverses the vacuum chamber, but exits one section and enters another through thermal standoffs for reducing heat-leak from the outer tube to the refrigeration tube. The refrigeration tube passes through a spirally wrapped shield within each section's vacuum chamber in a manner so that the refrigeration tube is in close thermal contact with the shield, but is nevertheless slideable with respect thereto.
- Inventors:
-
- Boulder, CO
- Issue Date:
- OSTI Identifier:
- 862670
- Patent Number(s):
- 3986341
- Application Number:
- 05/569,473
- Assignee:
- Cryogenic Technology, Inc. (Denver, CO)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16L - PIPES
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
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- heat-leak; cryogenic; envelope; plurality; sections; joined; form; power; transmission; line; comprised; inner; outer; tubes; multilayer; metalized; plastic; spirally; wrapped; vacuum; chamber; formed; refrigeration; tube; traverses; exits; section; enters; thermal; standoffs; reducing; passes; shield; manner; close; contact; nevertheless; slideable; respect; thereto; refrigeration tube; power transmission; vacuum chamber; transmission line; outer tube; thermal contact; outer tubes; respect thereto; reducing heat; chamber formed; cryogenic envelope; multilayer metal; /62/138/174/285/505/
Citation Formats
DeHaan, James R. Low heat-leak cryogenic envelope. United States: N. p., 1976.
Web.
DeHaan, James R. Low heat-leak cryogenic envelope. United States.
DeHaan, James R. Tue .
"Low heat-leak cryogenic envelope". United States. https://www.osti.gov/servlets/purl/862670.
@article{osti_862670,
title = {Low heat-leak cryogenic envelope},
author = {DeHaan, James R},
abstractNote = {A plurality of cryogenic envelope sections are joined together to form a power transmission line. Each of the sections is comprised of inner and outer tubes having multilayer metalized plastic spirally wrapped within a vacuum chamber formed between the inner and outer tubes. A refrigeration tube traverses the vacuum chamber, but exits one section and enters another through thermal standoffs for reducing heat-leak from the outer tube to the refrigeration tube. The refrigeration tube passes through a spirally wrapped shield within each section's vacuum chamber in a manner so that the refrigeration tube is in close thermal contact with the shield, but is nevertheless slideable with respect thereto.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Oct 19 00:00:00 EDT 1976},
month = {Tue Oct 19 00:00:00 EDT 1976}
}
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