COMPRESSOR, AND REFRIGERATION DEVICE

Title:

COMPRESSOR, AND REFRIGERATION DEVICE

Document Type and Number:

WIPO Patent Application WO/2021/005918

Kind Code:

A1

Abstract:

A compressor (1) is provided with: a compressing mechanism (15) accommodated inside a casing (10); a housing (18) in which a crank chamber (19) is formed; and a first oil return passage (31) for downwardly guiding lubricating oil that has flowed into the crank chamber (19). The first oil return passage (31) is provided with an oil return guide (32) which causes the lubricating oil to undergo contraction flow. An upper portion of the casing (10) forms an oil separating space (S2) in which lubricating oil is separated from high-pressure refrigerant discharged from the compressing mechanism (15). The compressor (1) is additionally provided with a second oil return passage (33) for downwardly guiding the lubricating oil that has been separated in the separating space (S2). An outlet of the second oil return passage (33) is disposed in the vicinity of an outlet of the oil return guide (32).

Inventors:

TOYAMA TOSHIYUKI (JP)

Application Number:

PCT/JP2020/021574

Publication Date:

January 14, 2021

Filing Date:

June 01, 2020

Export Citation:

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Assignee:

DAIKIN IND LTD (JP)

International Classes:

F04C29/02; F04B39/02

Domestic Patent References:

WO2011093385A1

2011-08-04

Foreign References:

JP2015098785A	2015-05-28
JP2009030611A	2009-02-12
JP2016020664A	2016-02-04
US20080170957A1	2008-07-17
JPS63167084A	1988-07-11

Other References: