Patent ID: 8006514
Filing Date: 2011-08-30
Classification: F25B

Abstract:
1. A refrigerating device comprising: a motor having a wire winding covered by a fluoro resin electrical insulation; a compressor driven by the motor; a refrigerant circulation flow passage that comprises an oil separator/collector, a condenser, an expansion valve, and an evaporator; an oil flow passage that conducts oil in said oil separator/collector to a bearing and a shaft seal unit of said compressor; a motor casing that stores said motor, an internal pressure of said motor casing is lower than a pressure in an oil sump in said refrigerant circulation flow passage on a discharge side of said compressor; an oil supply opening provided at said motor casing at a location axially beyond said wire winding, whereby oil from said oil supply opening can be scattered and distributed across the entire surface of the wire winding; and an oil supply line that is constructed to supply oil from said oil sump to said oil supply opening.