 |
|
|
|
|
|
 Title: |
US4107935:
High temperature refrigerator
[ Derwent Title ]
|
| Country: |
US United States of America
|
| |
| Inventor: |
Steyert, Jr., William A.; Los Alamos, NM
|
| Assignee: |
The United States of America as represented by the United States Department of Energy, Washington, DC
other patents from UNITED STATES OF AMERICA, DEPARTMENT OF ENERGY (597195) (approx. 6,712)
News, Profiles, Stocks and More about this company
|
| Published / Filed: |
1978-08-22
/ 1977-03-10
|
| Application Number: |
US1977000776381
|
| IPC Code: |
Advanced:
F04D 23/00;
F25B 9/00;
F25B 21/00;
Core:
more...
IPC-7:
F25B 21/02;
|
| ECLA Code: |
F04D23/00; F25B9/00; F25B21/00;
|
| U.S. Class: |
Current:
062/003.1;
062/467;
505/891;
505/895;
Original:
062/003;
062/467.R;
|
| Field of Search: |
062/003,467
|
| Priority Number: |
| 1977-03-10 |
US1977000776381 |
|
| Abstract: |
A high temperature magnetic refrigerator which uses a Stirling-like cycle in which rotating magnetic working material is heated in zero field and adiabatically magnetized, cooled in high field, then adiabatically demagnetized. During this cycle said working material is in heat exchange with a pumped fluid which absorbs heat from a low temperature heat source and deposits heat in a high temperature reservoir. The magnetic refrigeration cycle operates at an efficiency 70% of Carnot.
|
| Attorney, Agent or Firm: |
Carlson, Dean E. ;
Gaetjens, Paul D. ;
|
| Primary / Asst. Examiners: |
King, Lloyd L.;
|
| INPADOC Legal Status: |
None
Family Legal Status Report
|
| Family: |
Show 7 known family members
|
First Claim:
Show all 18 claims |
What I claim is:
1. A high temperature magnetic refrigerator capable of a temperature range of refrigeration load from 2 K to 400 K and operating at a Carnot efficiency of greater than 70% comprising in combination:
- (a) motor and shaft means for rotating a wheel, said wheel contained in a housing,
- (b) surrounding a portion of the housing is situate a superconducting magnet with a field strength of about 7 Telsa, and wherein the wheel rotates in and out of this magnetic field,
- (c) said wheel having a rim composed of a permeable rare earth with inlet and outlet means positioned on the said rim's outer periphery, and
- (d) by means of a pump a fluid is circulated within the said housing and is in thermal contact with the rim by passing back and forth by means of multiple separators through the said rim, and then flowing through a refrigeration load and heat exchanger by means of the said inlet and outlet.
|
| Background / Summary: |
Show background / summary
|
| Drawing Descriptions: |
Show drawing descriptions
|
| Description: |
Show description
|
| Forward References: |
Show 46 U.S. patent(s) that reference this one
|
