skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Magnetocaloric refrigerator

Abstract

The invention is for an apparatus and method for a refrigerator and a heat pump based on the magnetocaloric effect (MCE) offering a simpler, lighter, robust, more compact, environmentally compatible, and energy efficient alternative to traditional vapor-compression devices. The subject magnetocaloric apparatus alternately exposes a suitable magnetocaloric material to strong and weak magnetic field while switching heat to and from the material by a mechanical commutator comprising heat pipe elements. The invention may be practiced with multiple magnetocaloric stages to attain large differences in temperature. Key applications include thermal management of electronics, as well as industrial and home refrigeration, heating, and air conditioning. The invention offers a simpler, lighter, compact, and robust apparatus compared to magnetocaloric devices of prior art. Furthermore, the invention may be run in reverse as a thermodynamic engine, receiving low-level heat and producing mechanical energy.

Inventors:
Issue Date:
Research Org.:
Vetrovec, Jan, Larkspur, CO (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1576441
Patent Number(s):
10,436,481
Application Number:
15/731,270
Assignee:
Vetrovec, Jan, Larkspur, CO (United States)
DOE Contract Number:  
SC0013769
Resource Type:
Patent
Resource Relation:
Patent File Date: 2017 May 15
Country of Publication:
United States
Language:
English

Citation Formats

Vetrovec, Jan. Magnetocaloric refrigerator. United States: N. p., 2019. Web.
Vetrovec, Jan. Magnetocaloric refrigerator. United States.
Vetrovec, Jan. Tue . "Magnetocaloric refrigerator". United States. https://www.osti.gov/servlets/purl/1576441.
@article{osti_1576441,
title = {Magnetocaloric refrigerator},
author = {Vetrovec, Jan},
abstractNote = {The invention is for an apparatus and method for a refrigerator and a heat pump based on the magnetocaloric effect (MCE) offering a simpler, lighter, robust, more compact, environmentally compatible, and energy efficient alternative to traditional vapor-compression devices. The subject magnetocaloric apparatus alternately exposes a suitable magnetocaloric material to strong and weak magnetic field while switching heat to and from the material by a mechanical commutator comprising heat pipe elements. The invention may be practiced with multiple magnetocaloric stages to attain large differences in temperature. Key applications include thermal management of electronics, as well as industrial and home refrigeration, heating, and air conditioning. The invention offers a simpler, lighter, compact, and robust apparatus compared to magnetocaloric devices of prior art. Furthermore, the invention may be run in reverse as a thermodynamic engine, receiving low-level heat and producing mechanical energy.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {10}
}

Patent:

Save / Share:

Works referenced in this record:

Magnetic refrigeration apparatus with heat pipes
patent, February 1987