Title:
THERMOACOUSTIC ENGINE, AND METHOD FOR DESIGNING THERMOACOUSTIC ENGINE
Document Type and Number:
WIPO Patent Application WO/2017/212871
Kind Code:
A1
Abstract:
The present invention is designed so that the length Lh of a heater (112) = Ls × (Th/Ts) × (Ss/Sh), and the length Lc of a cooler (113) = Ls × (Tc/Ts) × (Ss/Sc), where Ts is the average temperature of a heat accumulator (111) during operation of a thermoacoustic engine (110), Th is the temperature of the heater (112) during operation, Tc is the temperature of the cooler (113) during operation, Ss is the sum of the flow-channel area at the cross-section of the heat accumulator (111), Sh is the sum of the internal space area on which a working gas is present at the cross-section of the heater (112), Sc is the sum of the internal space area on which the working gas is present at the cross-section of the cooler (113), and Ls is the length of the heat accumulator. The length Lh of the heater (112) is greater than the length Ls of the heat accumulator (111), and greater than the length Lc of the cooler (113). It is thereby possible to provide a thermoacoustic engine that is highly efficient in converting thermal energy to acoustic energy, and a method for designing said thermoacoustic engine.
Inventors:
FUKAYA NORIYUKI (JP)
ITO TAKESHI (JP)
ITO TAKESHI (JP)
Application Number:
PCT/JP2017/018126
Publication Date:
December 14, 2017
Filing Date:
May 14, 2017
Export Citation:
Assignee:
CENTRAL MOTOR WHEEL CO LTD (JP)
International Classes:
F03G7/00; F25B9/00
Domestic Patent References:
| WO2013084830A1 | 2013-06-13 |
Foreign References:
| JP2015055438A | 2015-03-23 | |||
| JP2013117322A | 2013-06-13 | |||
| US20050000233A1 | 2005-01-06 | |||
| CN1916404A | 2007-02-21 |
Other References:
See also references of EP 3470753A4
Attorney, Agent or Firm:
HIGUCHI Shunichi (JP)
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