Patent · US Expired

Acoustic refrigeration apparatus

US6233946A · kind A · utility

13Cited by
4References
15Claims
0Family size

Assignee

Inventor

Key dates

Filing dateSep 20, 1999
Grant dateMay 22, 2001
Priority date
Expiry dateSep 20, 2019

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF25B2309/1405
  • WIPO fieldThermal processes and apparatus
  • WIPO sectorMechanical engineering

Abstract

An acoustic refrigeration apparatus includes an acoustic wave generation device arranged directed to the channel of a hollow annular tube, and a regenerator provided at a predetermined position in the channel of the annular tube. A temperature gradient is obtained across the regenerator by an acoustic wave emitted from the acoustic wave generation device. Therefore, an acoustic refrigeration apparatus realizing a gas cycle approximating the Carnot cycle which is an ideal gas cycle, and realizing simplification of the structure and high efficiency of the apparatus is provided.

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