Title:
TEMPERATURE DIFFERENCE HEAT ENGINE
Document Type and Number:
WIPO Patent Application WO/1991/007589
Kind Code:
A1
Abstract:
A temperature difference heat engine to be used as a power source for marine temperature difference power generation, pumping-up of eutrophied seawater, and digging of submarine resources, which utilizes thermomechanical solid phase transformation of a shape memory alloy. This engine is composed of an engine body (1) and a heat conductive medium (2), in which the engine body comprises a belt-like body (6) made of a shape memory alloy and passed around pulleys (3), (4), and (5) respectively positioned at three apexes (A), (B) and (C) of a right triangular base frame. The heat conductive medium is constituted of liquid or gas having a certain temperature gradient in the vertical direction. The engine body is attitude-controlled so that the whole or a part of one of the sides forming the right angle of the right-triangular belt-like body extends in approximately vertical direction in the heat conductive medium, whereby reversible elongation and contraction resulting from thermomechanical solid phase transformation are repeatedly applied to the belt-like body at portions between pulleys and thus rotational driving power can be generated in the belt-like body.
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| JPS52119738 | MOTIVE POWER STATION EQUIPMENT |
| JPS56138468 | OCEAN TEMPERATURE DIFFERENCE GENERATOR |
Inventors:
FURUYA YASUBUMI (JP)
Application Number:
PCT/JP1990/001459
Publication Date:
May 30, 1991
Filing Date:
November 09, 1990
Export Citation:
Assignee:
FURUYA YASUBUMI (JP)
International Classes:
F03G7/05; F03G7/06; (IPC1-7): F03G7/06
Foreign References:
| JPS5677575A | 1981-06-25 | |||
| US4075846A | 1978-02-28 | |||
| JPS5773866A | 1982-05-08 | |||
| US4275561A | 1981-06-30 |
Attorney, Agent or Firm:
Ohtsu, Hiroo (Roiyaru Haitsu Mita 7-26, Mita 3-chom, Minato-ku Tokyo 108, JP)
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