Methods and devices for cooling a motor of a refrigerating machi

Details Methods and devices for cooling a motor of a refrigerating machi Methods and devices for cooling a motor of a refrigerating machi

1988-08-30

1990-02-27

Tanner, Harry B.

Refrigeration

Processes

Transferring heat between diverse function portions of...

62197, 62505, 62513, F25B 3102

Patent

active

049034979

ABSTRACT:
Liquid coming from the condenser or present in the fluid discharged by the compressor circulates in grooves provided between a stator 7 and a housing 10 of the motor at a distance from the coils (8, 9) thereof. The liquid cools the stator without any risk of short-circuit in the coils. The liquid may be urged by a centrifugal economizer separator 13 through the liquid outlet 16 thereof, towards liquid inlets 27 and 27'. The pressurized gas produced by separator 13 is sent in the motor housing through slit 17 and then, having cooled the coils, reaches economizer hole 12 of the compressor, through conduit 11. Thus, the heated gas is not sent to the intake of the compressor where it would reduce the compressor capacity and efficiency.

REFERENCES:
patent: 3122894 (1964-03-01), Bernhard
patent: 3241331 (1966-03-01), Endress et al.
patent: 3388559 (1968-06-01), Johnson
patent: 3913346 (1975-10-01), Moody, Jr. et al.
patent: 4182137 (1980-01-01), Erth
patent: 4573324 (1986-03-01), Tischer et al.

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