Patent · US Expired

Magnetic heat pumps using the inverse magnetocaloric effect

US5091361A · kind A · utility

91Cited by
11References
52Claims
0Family size

Inventor

Key dates

Filing dateJul 3, 1990
Grant dateFeb 25, 1992
Priority date
Expiry dateJul 3, 2010

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02B30/00
  • WIPO fieldThermal processes and apparatus
  • WIPO sectorMechanical engineering

Abstract

A heat pump system operates by the inverse magnetocaloric effect in which the working medium is a superconductive body of type II superconductive material having a critical temperature above 23.degree. K. The superconductive body is cooled to below its critical temperature and subjected to a changing magnetic field, which decreases the concentration of paired charged carriers without their complete elimination and induces cooling and/or absorbs heat of the working medium.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.