OIL RETURNING MECHANISM FOR REFRIGERATING DEVICE

PROBLEM TO BE SOLVED: To provide an oil returning mechanism to favorably return a refrigerator oil, accumulating in an accumulator and an evaporator, to a compressor. SOLUTION: This device comprises a floating body vertically moving so as to follow up a change in the height of a boundary 20 between...

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Bibliographic Details
Main Authors MURAKI YOSUKE, HIRANO ISAO
Format Patent
LanguageEnglish
Published 26.01.2001
Edition7
Subjects
BLASTING
COMBINED HEATING AND REFRIGERATION SYSTEMS
HEAT PUMP SYSTEMS
HEATING
LIGHTING
LIQUEFACTION SOLIDIFICATION OF GASES
MANUFACTURE OR STORAGE OF ICE
MECHANICAL ENGINEERING
REFRIGERATION MACHINES, PLANTS OR SYSTEMS
REFRIGERATION OR COOLING
WEAPONS
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Summary:PROBLEM TO BE SOLVED: To provide an oil returning mechanism to favorably return a refrigerator oil, accumulating in an accumulator and an evaporator, to a compressor. SOLUTION: This device comprises a floating body vertically moving so as to follow up a change in the height of a boundary 20 between a liquid refrigerant and refrigerator oil and situated at the bottom of a container into which a refrigerant and refrigerator oil for a refrigerating device using a refrigerant 19 having a specific gravity lower than the refrigerant oil 18 are introduced and which separately accumulated into upper and lower layers; an on-off valve 10 formed such that though usually closed, a gap between a valve element and a valve seat is opened as a result of the valve element being raised togetherwith the floating body when the height of a boundary exceeds a give value and closed when the height of the boundary is lowered to a value lower than a given height; and an oil return pipe 11 through which refrigerator oil from the on-off valve 10 is fed to the compressor or the suction pipe of the compressor.
Bibliography:Application Number: JP19990191541