Expander-compressor transducer

Refrigeration – Air compressor – cooler and expander type – Motor-type expander

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Details

62116, F25D 900

Patent

active

042088852

ABSTRACT:
The expander-compressor transducer of this invention is for expanding refrigerant fluid from a high pressure source into a low pressure heat absorbing heat exchanger while simultaneously precompressing the same fluid stream derived from the low pressure heat absorbing heat exchanger for delivery through suitable conduit heat exchangers to the suction side of the high pressure source.
The device includes a body enclosing a chamber for confinement of refrigerant fluid, a fluid-responsive piston arranged to oscillate in the chamber and dividing the chamber into an expansion chamber at one end and a compression chamber at the other end, a return spring control in the compression chamber for locating the piston into the initial start-up position, a fluid control regulator for permitting flow of the refrigerant fluid into and out of the expansion chamber and into the compression chamber, and a check valve for permitting the refrigerant to flow out of the compression chamber whenever the pressure in the compression chamber overcomes the check valve.
The device effectively provides oscillatory movement of the fluid responsive piston within the chamber, causing concurrently the refrigerant fluid stream to expand in the expansion chamber and to compress in the compression chamber, and producing simultaneously a cooling effect and a work output.

REFERENCES:
patent: 1486486 (1924-11-01), Gates
patent: 1693863 (1928-12-01), Potter
patent: 3301471 (1967-01-01), Clarke
patent: 3686893 (1972-08-01), Edwards
patent: 4094169 (1978-06-01), Schmerzler

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