Hot Air Pumping Engine

The hot air pumping engine is a technology that uses high amplitude sound waves in a pressurized gas to pump heat from one place to another, or uses a heat temperature difference to induce sound which can be converted to electricity with high efficiency.

Keywords

air pump, pump engine, air pump engine, pressurized gas, pump heat

Galleries

Miscellaneous Industrial Machinery

Source

Government Printing Office The Official Gazette of the United States Patent Office (Washington, DC: Government Printing Office, 1895)

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