Double acting pulse tube electroacoustic system

Details Double acting pulse tube electroacoustic system Double acting pulse tube electroacoustic system

1996-09-24

1998-09-29

Kilner, Christopher

Refrigeration

Gas compression, heat regeneration and expansion, e.g.,...

62467, F25B 900

Patent

active

058132341

ABSTRACT:
A electroacoustic cooling engine comprising a resonator pressure vessel for containing a compressible fluid, a double acting flexural disk centrally located in the resonant pressure vessel, an electromagnetic driver supported outside the vessel for driving the disk from outside the vessel, a thermodynamic element on each side of the disk and a pair of heat exchangers on opposite sides of the thermodynamic element. The electromagnetic driver linearly actuates the disk to cyclically drive a standing acoustic wave on both sides of the disk through each thermodynamic element and heat exchanger pair to generate a desired thermal response in a working fluid flowing through each heat exchanger.

REFERENCES:
patent: 4625512 (1986-12-01), Muller
patent: 4722201 (1988-02-01), Hoffler et al.
patent: 5269147 (1993-12-01), Ishizaki et al.
patent: 5275002 (1994-01-01), Inoue et al.
patent: 5303555 (1994-04-01), Chrysler et al.
patent: 5647216 (1997-07-01), Garrett
Garrett, Steven L.; "Thermoacoustic Life Sciences Refrigerator" Oct. 30, 1991, NASA Report LS-10114.

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