SCROLL COMPRESSOR - DAIKIN IND LTD

Title:

SCROLL COMPRESSOR

Document Type and Number:

WIPO Patent Application WO/2021/100823

Kind Code:

A1

Abstract:

Provided is a scroll compressor that enables adequate lubricating oil to be supplied to a compression chamber positioned between an outermost lateral surface of a fixed scroll wrap and an inner lateral surface of a movable scroll wrap. A fixed-side end plate (24a) of a fixed scroll (24) has a first fixed-side passage (24a5) and a second fixed-side passage (24a6). The first fixed-side passage communicates with a high-pressure space (71). The second fixed-side passage is for supplying lubricating oil from the high-pressure space to a compression chamber (40). A movable-side end plate (26a) of a movable scroll (26) has a movable-side groove (26a2). The movable-side groove establishes intermittent communication, while the movable scroll is turning, with the first fixed-side passage and the second fixed-side passage. A first fixed-side hole (24c1) in the second fixed-side passage establishes intermittent communication with the movable-side groove while the movable scroll is turning. A second fixed-side hole (24c2) in the second fixed-side passage establishes intermittent communication, while the movable scroll is turning, with a second compression chamber (40b) positioned on the inside of a first compression chamber (40a) which is in an outermost position.

Inventors:

NAKATANI EITAROU
MIZUSHIMA YASUO
KATO KATSUMI
ENDOU TAKESHI
HIMEDA AKIRA
MAEJIMA YUKIKO

Application Number:

PCT/JP2020/043261

Publication Date:

May 27, 2021

Filing Date:

November 19, 2020

Export Citation:

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Assignee:

DAIKIN IND LTD (JP)

International Classes:

F04C18/02; F04C29/02

Domestic Patent References:

WO2016136185A1

2016-09-01

Foreign References:

JP2012077616A	2012-04-19
JP2009257287A	2009-11-05
JP2014070598A	2014-04-21

Other References: