Passive and compact liquid metal heat switch
Abstract
A passive heat switch device is disclosed that includes a casing defining a closed channel, as well as a passive thermal actuator and liquid slug positioned inside the closed channel. The closed channel includes a heat conducting region made of a heat conducting material and an insulating region made of an insulating material. The passive thermal actuator is thermally coupled to the heat conducting material of the heat conducting region and extends into the insulating region of the closed channel. The passive thermal actuator deforms when an actuator temperature falls within a switching temperature range. The liquid slug is positioned within the closed channel and contacts at least a portion of the passive thermal actuator and the closed channel and is configured to move along the closed channel between the insulating region and the thermally conductive region in response to deformation of the passive thermal actuator.
- Inventors:
- Issue Date:
- Research Org.:
- Washington Univ., St. Louis, MO (United States)
- Sponsoring Org.:
- USDOE; National Aeronautics and Space Administration (NASA)
- OSTI Identifier:
- 1987119
- Patent Number(s):
- 11578929
- Application Number:
- 17/374,916
- Assignee:
- Washington University (St. Louis, MO)
- DOE Contract Number:
- 80NSSC20K0072
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 07/13/2021
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING
Citation Formats
Weisensee, Patricia, Abolghasemibizaki, Mehran, and Li, Junhui. Passive and compact liquid metal heat switch. United States: N. p., 2023.
Web.
Weisensee, Patricia, Abolghasemibizaki, Mehran, & Li, Junhui. Passive and compact liquid metal heat switch. United States.
Weisensee, Patricia, Abolghasemibizaki, Mehran, and Li, Junhui. Tue .
"Passive and compact liquid metal heat switch". United States. https://www.osti.gov/servlets/purl/1987119.
@article{osti_1987119,
title = {Passive and compact liquid metal heat switch},
author = {Weisensee, Patricia and Abolghasemibizaki, Mehran and Li, Junhui},
abstractNote = {A passive heat switch device is disclosed that includes a casing defining a closed channel, as well as a passive thermal actuator and liquid slug positioned inside the closed channel. The closed channel includes a heat conducting region made of a heat conducting material and an insulating region made of an insulating material. The passive thermal actuator is thermally coupled to the heat conducting material of the heat conducting region and extends into the insulating region of the closed channel. The passive thermal actuator deforms when an actuator temperature falls within a switching temperature range. The liquid slug is positioned within the closed channel and contacts at least a portion of the passive thermal actuator and the closed channel and is configured to move along the closed channel between the insulating region and the thermally conductive region in response to deformation of the passive thermal actuator.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2023},
month = {2}
}
Works referenced in this record:
Electronic Equipment Enclosure with Passive Thermal Vent Door Control
patent-application, July 2007
- Kehl, Kenyon; Phielix, Tom J.
- US Patent Application 11/339432; 20070171609
Thermal Control System with Passive Thermostatic Actuator for Passive Thermal Management of Pluggable Optics in an Optical Telecom Platform
patent-application, April 2021
- Mays, Russell P.
- US Patent Application 10/15/2019; 20210112315
Thermally Actuated Passive Gas Turbine Engine Compartment Venting
patent-application, May 2011
- Diaz, Carlos Enrique; Laborie, Daniel Jean-Louis; Geary, Stephen Dennis
- US Patent Application 12/624858; 20110120075
Thermal Actuator
patent-application, March 2013
- van Ruth, Nico
- US Patent Application 13/622133; 20130068973