Thermoacoustic apparatus

Details Thermoacoustic apparatus Thermoacoustic apparatus

2005-03-23

2009-10-20

Doerrler, William C (Department: 3744)

Refrigeration

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

Reexamination Certificate

active

07603866

ABSTRACT:
In order to reduce the time until an acoustic wave is generated and perform heat exchange smoothly in a stack, a thermoacoustic apparatus1includes a first stack3asandwiched between a first high-temperature-side heat exchanger4and a first low-temperature-side heat exchanger5and a second stack3bsandwiched between a second high-temperature-side heat exchanger6and a second low-temperature-side heat exchanger7in the inside of a loop tube2, wherein a standing wave and a traveling wave are generated through self excitation by heating the first high-temperature-side heat exchanger4, the second low-temperature-side heat exchanger7is cooled by the standing wave and the traveling wave, or/and a standing wave and a traveling wave are generated by cooling the first low-temperature-side heat exchanger5, and the second high-temperature-side heat exchanger6is heated by the standing wave and the traveling wave. The standing wave and the traveling wave are generated in the state in which helium having a high sound velocity, a small Prandtl number, and a small specific gravity is enclosed in the loop tube and, thereafter, argon having a low sound velocity, a large Prandtl number, and a small specific gravity is injected.

REFERENCES:
patent: 5647216 (1997-07-01), Garrett
patent: 5953921 (1999-09-01), Garrett
patent: 6032464 (2000-03-01), Swift et al.
patent: 6164073 (2000-12-01), Swift et al.
patent: 7404296 (2008-07-01), Watanabe et al.
patent: 2000-88378 (2000-03-01), None
patent: 2002-31423 (2002-01-01), None
patent: 2002-535597 (2002-10-01), None
patent: 2005-180294 (2005-07-01), None
patent: WO 00/43639 (2000-07-01), None
International Search Report of PCT/JP2005/005221, date of mailing: Jul. 5, 2005.
Japanese Office Action dated Mar. 11, 2009 of JP 2004-091686.

Affiliated with

Also associated with

Rating

Thermoacoustic apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Thermoacoustic apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermoacoustic apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4094540