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US 2025/0075948 A1Published application
Acoustic power modulation in a thermoacoustic machine
AssigneeEquium Groupe
InventorThierry LE POLLES
Life of this patent
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Abstract
A thermoacoustic machine including a device for measuring at least one parameter representative of a temperature of a first external source and/or of a second external source, and a control device configured to modulate the acoustic power generated by one or more acoustic sources such that the temperature of one said external source connected to one or more thermoacoustic cells of the machine reaches or remains substantially identical to a setpoint temperature is disclosed.
Claims9
A thermoacoustic machine comprising:
- a waveguide intended to receive a working fluid;
- an acoustic source configured to generate an acoustic wave so as to propagate acoustic energy through the waveguide;
- a thermoacoustic cell comprising a regenerator, a first heat exchanger which is configured to exchange heat between the working fluid and a first heat transport element transporting heat to a first external source, and a second heat exchanger which is configured to exchange heat between the working fluid and a second heat transport element transporting heat from a second external source;
- a device for measuring at least one parameter representative of a temperature of the first external source and/or of the second external source;
- and
- a control member configured to modulate the acoustic power of the acoustic source so as to modify the temperature of the first external source and/or of the second external source according to the at least one parameter.
3 more elements
Dependencies are inferred from the claim text.