OIL SEPARATOR AND REFRIGERATION CYCLE DEVICE

WIPO Patent Application WO/2024/029028

A1

Provided is an oil separator that suppresses the re-scattering of oil that remains inside the oil separator due to a swirling flow of oil-containing refrigerant. The oil separator 10 comprises: a vessel 11 that separates oil from an oil-containing refrigerant which is a mixed fluid of oil and refrigerant, and that has an inner circumferential surface which extends along a central axis CL extending vertically and which has a circular cross-section orthogonal to the central axis CL; an oil discharge pipe 14 that is connected to a bottom portion of the vessel 11 and that discharges, from the vessel 11, the oil that has been separated from the oil-containing refrigerant; a refrigerant discharge pipe 13 that is disposed coaxial to the central axis CL of the vessel 11, that has a first opening 13b formed in a portion which passes through an upper and lower portion of the vessel 11 and which extends into the interior of the vessel 11, that has a second opening 13c formed below the first opening 13b, and that discharges, from the vessel 11, refrigerant obtained by separating the oil from the oil-containing refrigerant; and an inlet pipe 12 that is connected to an upper portion of the refrigerant discharge pipe 13 and that allows the oil-containing refrigerant to flow into the refrigerant discharge pipe 13.

NAKAMURA MAKO (JP)
ISHIYAMA HIROKI (JP)

PCT/JP2022/029922

February 08, 2024

August 04, 2022

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MITSUBISHI ELECTRIC CORP (JP)

F25B1/00; F25B43/02

WO2018207274A1	2018-11-15
WO2019229814A1	2019-12-05
WO2019130393A1	2019-07-04

JPH04110575A	1992-04-13
JPH1019423A	1998-01-23

KURATANI, Yasutaka et al. (JP)

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