Coupled apparatus used between heat phonomotor and refrigerating device driven by the same

A technology of thermoacoustic engine and coupling device, which is applied in the direction of hot gas variable displacement engine device, refrigerator, machine/engine, etc., and can solve problems such as high cost, helium consumption, and poor refrigeration performance
CN101280977AInactive Publication Date: 2008-10-08TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
Publication Date
2008-10-08
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention relates to a coupling device for thermo-acoustic engine and cooler driven by the thermo-acoustic engine, comprising: a hollow cavity; an elastic film installed within the hollow cavity, the elastic film divides the hollow cavity into a first chamber and a second chamber; a long pipe communicated with one sidewall of the hollow cavity and with the first chamber; a short pipe communicated with another sidewall of the hollow cavity and with the second chamber; another end of the long pipe is communicated with a feedback pipe of the thermo-acoustic engine; another end of the short pipe is communicated with a water cooler of the cooler; the cooling device can enable pressure wave generated by the thermo-acoustic engine to amplify pressure amplitude when passing through the long pipe and the hollow cavity, thus improving utilization rate of system acoustic power by the cooler; the elastic film installed within the hollow cavity separates working gas in the cooler from the engine so that the engine can use the gases, such as nitrogen, to reduce system frequency for working substance, meanwhile, the cooler can use the gases, such as helium gas, to maintain good cooling performance for the working substance.
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Description

field of invention

[0001] The present invention mainly relates to the field of energy utilization and refrigeration, in particular to a coupling device used between a thermoacoustic engine and a refrigerator driven by it; the coupling device can improve the utilization rate of sound power of the refrigerator system driven by a thermoacoustic engine, Reduce operating frequency. Background technique

[0002] The thermoacoustic engine-driven pulse tube refrigerator, or thermoacoustic refrigerator, is a new type of refrigeration technology that has no moving parts at all. It uses thermal energy as power, through the oscillation of gas, converts internal energy into sound work in the engine, and consumes sound work in the refrigerator to produce cooling effect. It is environmentally friendly, safe, and has a long service life, so it has a very good application prospect.

[0003] At present, its refrigeration temperature range has covered from room temperature to liquid hydrogen ...

Claims

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