Title:
MAGNETOCALORIC THERMAL GENERATOR
Document Type and Number:
WIPO Patent Application WO/2010/004186
Kind Code:
A3
Abstract:
The present invention relates to a thermal generator (1) comprising at least one thermal module (3) essentially comprising a magnetocaloric element (4) through which a heat-transfer fluid flows alternately between two chambers (5, 6) placed on either side of said magnetocaloric element (4), and a means (8, 9) for transferring thermal energy between the heat-transfer fluid of at least each chamber and at least one application or the external environment. This generator is characterized in that the thermal energy transfer means comprises at least one structural element for controlled heating or cooling, preventing an uncontrolled reduction in the temperature gradient in each magnetocaloric element (4) and ensuring a minimum value of the temperature gradient inside each thermal module (3), the overall heat transmission coefficient of each structural element (8, 9) being determined according to the heat transmission coefficient at each interface between each magnetocaloric element (4) and each structural element (8, 9).
Inventors:
HEITZLER JEAN-CLAUDE (FR)
MULLER CHRISTIAN (FR)
MULLER CHRISTIAN (FR)
Application Number:
PCT/FR2009/051256
Publication Date:
March 25, 2010
Filing Date:
June 29, 2009
Export Citation:
Assignee:
COOLTECH APPLICATIONS (FR)
HEITZLER JEAN-CLAUDE (FR)
MULLER CHRISTIAN (FR)
HEITZLER JEAN-CLAUDE (FR)
MULLER CHRISTIAN (FR)
International Classes:
F25B21/00
Foreign References:
| JP2005090921A | 2005-04-07 | |||
| JPS6446545A | 1989-02-21 | |||
| US20070125095A1 | 2007-06-07 | |||
| US4956976A | 1990-09-18 | |||
| JP2006308197A | 2006-11-09 | |||
| FR2562082A1 | 1985-10-04 |
Other References:
OKAMURA T ET AL: "Performance of a room-temperature rotary magnetic refrigerator", INTERNATIONAL JOURNAL OF REFRIGERATION, ELSEVIER, PARIS, FR, vol. 29, no. 8, 1 December 2006 (2006-12-01), pages 1327 - 1331, XP025094679, ISSN: 0140-7007, [retrieved on 20061201]
Attorney, Agent or Firm:
NITHARDT, Roland (14 Boulevard Alfred Wallac, B.P. 1445 Mulhouse Cedex, FR)
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