Thermoacoustic engine for outputting rotary power

Abstract

The invention relates to a thermoacoustic engine for outputting rotary power, which comprises a hot-end heat exchanger, a sheet packing or heat regenerator, a cold-end heat exchanger and a resonant tube; and the thermoacoustic engine is characterized by also comprising a self-rectifying air turbine device which is used for converting the alternating flow of oscillating current into rotary motion and is positioned in the resonant tube. Aiming at the problems of large abrasion, low efficiency, short service life and no adjustability of the motion displacement of a piston caused by adopting the piston to push a crank connecting rod mechanism in the prior method for converting reciprocating and alternating oscillating current into the rotary motion and outputting power , the thermoacoustic engine for outputting the rotary power provided can realize the conversion of the reciprocating and alternating oscillating current generated by the thermoacoustic engine into the rotary motion, outputs power to drive load and has the characteristics of small abrasion, high efficiency, long service life and good controllability.

Description

technical field [0001] The invention relates to a thermoacoustic power device, in particular to a thermoacoustic engine outputting rotational power. Background technique [0002] In the prior art, the conversion of the alternating flow generated by the thermoacoustic engine into the rotary motion output work is realized by the piston pushing the connecting rod mechanism. Such as Figure 11 As shown, it is a structural schematic diagram of an existing thermoacoustic engine. Heat is added to the heat exchanger 1 at the hot end, and a temperature gradient is formed on the plate stack 2; when the temperature gradient exceeds the critical temperature gradient, the system starts to work and generates pressure waves; Pushed by the pressure wave, the piston 12 reciprocates, and the crankshaft 14 is driven to rotate through the connecting rod 13, and the rotating crankshaft 14 can be connected with a rotating load to output work. The existing problems mainly include: ①There is a lat...

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Problems solved by technology

[0004] The purpose of the present invention is to convert the reciprocating and alternating oscillating airflow produced by the existing thermoacoustic engine into the output work method of the rotary motion. Due to the use of the piston to push the crank connecting rod mechanism, the wear and tear caused by the piston is large, the efficiency is low, the life is short, and the piston To solve the problem of non-adjustable motion displacement, provide a thermoacoustic engine that outputs rotational power, realize the conversion of the reciprocating and alternating oscillating airflow generated by the thermoacoustic engine into rotational motion, and output work, with small wear, high efficiency, and controllability it is good

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