Refrigerating system with auxiliary compressor-cooling device

Refrigeration – Automatic control – Refrigeration producer

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622283, F25B 4104

Patent

active

055310770

ABSTRACT:
A refrigerating system in which a refrigeration fluid medium is flowing in a closed circuit comprising a compressor, a condenser, a receiver for containing the refrigeration fluid in a liquid state, and an evaporator serially connected between the outlet side and the intake side of the compressor; the improvement consisting in a cooling device for the compressor, comprising an auxiliary flow path for circulation of the refrigeration fluid, branched-off between the fluid receiver and the intake-side of the compressor and provided with a flow restrictor. Pressure sensing elements are provided on the intake side to provide a control signal in the absence of liquefied fluid in the receiver.

REFERENCES:
patent: 2911798 (1959-11-01), Gould
patent: 4300357 (1981-11-01), Jacyno
patent: 4463576 (1984-08-01), Burnett et al.
patent: 5251453 (1993-10-01), Stanke et al.

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