Thermoacoustic device with suppressor
US8806875B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2005 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | Sep 2, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2309/1416
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
There is provided a thermoacoustic device 1 which has in a loop tube 2, a first stack 3a between a first high-temperature side heat exchanger 4 and a first low-temperature side heat exchanger 5, and a second stack 3b provided between a second high-temperature side heat exchanger 6 and a second low-temperature side heat exchanger 7, so that heat at the first stack side is prevented from being transported to the second stack side even when a large acoustic wave is generated in the tube. In the device, self-excited standing and traveling waves are generated by heating the first high-temperature side heat exchanger 4, and by the standing and traveling waves, the second low-temperature side heat exchanger 7 is cooled. a piezoelectric film 81 is provided to suppress an acoustic streaming and/or a direct-current type flow of a working fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.