Motor-driven, expander-compressor transducer

Refrigeration – Processes – Compressing – condensing and evaporating

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Details

62403, 417392, F25B 102, F04B 3500

Patent

active

043983960

ABSTRACT:
The expander-compressor transducer of this invention is for expanding refrigerant fluid from a high pressure source into a low pressure heat absorber while simultaneously precompressing the same fluid stream derived from the low pressure heat absorber.
The device includes a body enclosing a chamber for confinement of refrigerant fluid; motor driven, 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 motor drive for oscillating the piston; a fluid control regulator for permitting flow of 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 a cooling effect.

REFERENCES:
patent: 3277658 (1966-10-01), Leonard, Jr.
patent: 4094169 (1978-06-01), Schmerzler
patent: 4208885 (1980-06-01), Schmerzler
patent: 4235079 (1980-11-01), Masser

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