ROTARY COMPRESSOR

WIPO Patent Application WO/2019/031411

A1

A rotary compressor (1), wherein: a lower-side connection part (90) is provided between an auxiliary shaft part (74) and a lower-side eccentric part (76) of a drive shaft (70); the distance obtained by subtracting the amount of eccentricity eL of the lower-side eccentric part (76) from the radius ReL of the lower-side connection part (90) is less than the radius RS of the auxiliary shaft part (74); and the lower-side connection part (90) is configured such that the height HCL thereof is less than the height HPL of a lower-side piston (45), without the outer surface of the lower-side connection part (90) protruding beyond the outer surface of the lower-side eccentric part (76). A circumferentially extending inner circumferential groove (48) is formed on an end part of the lower-side piston (45) toward the lower-side-connection part (90) on the inner circumferential surface, the inner circumferential groove (48) being provided to avert contact between the auxiliary shaft (74) and the inner circumferential surface of the lower-side piston (45) when the lower-side piston (45) is on the outer circumferential side of the lower-side connection part (90) and the inner circumferential surface of the lower-side piston (45) is further outward than the outer circumferential surface of the lower-side eccentric part (76).

SOTOJIMA TAKAZOU (JP)
NISHIMURA KOUSUKE (JP)
HIGASHI HIROFUMI (JP)

PCT/JP2018/029259

February 14, 2019

August 03, 2018

Click for automatic bibliography generation  

DAIKIN IND LTD (JP)

F04C18/356; F04C18/32; F04C23/00; F04C29/00

WO2013057946A1

2013-04-25

JP2014173546A	2014-09-22
JP2012127198A	2012-07-05
JP2002138978A	2002-05-17
JP2012149545A	2012-08-09
JP2004100608A	2004-04-02
JPS61108887A	1986-05-27

See also references of EP 3647595A4

MAEDA & PARTNERS (JP)

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