EP 3597923 A4 20210120 - ROTARY COMPRESSOR
Title (en)
ROTARY COMPRESSOR
Title (de)
ROTATIONSVERDICHTER
Title (fr)
COMPRESSEUR ROTATIF
Publication
Application
Priority
- JP 2017052710 A 20170317
- JP 2018010583 W 20180316
Abstract (en)
[origin: EP3597923A1] In a rotary compressor including first and second cylinders aligned in the axial direction of a drive shaft, a suction passage is formed to supply refrigerant supplied from an external device via a suction pipe to each compression chamber. The surface area of a region facing the suction passage in the second cylinder is smaller than the surface area of a region facing the suction passage in the first cylinder. A difference between the height of the second cylinder in the axial direction and the height of a piston provided in the compression chamber of the second cylinder is smaller than a difference between the height of the first cylinder in the axial direction and the height in the axial direction of a piston provided in the compression chamber of the first cylinder (A3-A4<A1-A2). With this arrangement, downsizing of the compressor and suppression of decrease in compressor efficiency are both achieved.
IPC 8 full level
F04C 29/12 (2006.01); F01C 21/08 (2006.01); F01C 21/10 (2006.01); F04C 18/32 (2006.01); F04C 18/356 (2006.01); F04C 23/00 (2006.01); F04C 29/00 (2006.01)
CPC (source: EP)
F01C 21/08 (2013.01); F04C 18/356 (2013.01); F04C 23/001 (2013.01); F04C 23/008 (2013.01); F04C 29/12 (2013.01); F01C 21/102 (2013.01); F04C 18/32 (2013.01); F04C 2240/10 (2013.01); F04C 2240/20 (2013.01); F04C 2240/806 (2013.01); F04C 2250/101 (2013.01); F04C 2250/20 (2013.01); F04C 2250/30 (2013.01); F04C 2270/17 (2013.01)
Citation (search report)
- [Y] WO 03054391 A1 20030703 - LG ELECTRONICS INC [KR]
- [Y] JP H02218884 A 19900831 - TOSHIBA CORP
- [Y] CN 102644597 B 20140924 - GUANGDONG MIDEA TOSHIBA COMPRESSOR CORP
- [Y] US 6447274 B1 20020910 - HORIHATA HIDEYUKI [JP], et al
- See references of WO 2018169072A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3597923 A1 20200122; EP 3597923 A4 20210120; EP 3597923 B1 20230531; CN 110418892 A 20191105; CN 110418892 B 20210706; ES 2953629 T3 20231114; JP 6787480 B2 20201118; JP WO2018169072 A1 20191212; MY 195534 A 20230131; WO 2018169072 A1 20180920
DOCDB simple family (application)
EP 18767860 A 20180316; CN 201880017804 A 20180316; ES 18767860 T 20180316; JP 2018010583 W 20180316; JP 2019506315 A 20180316; MY PI2019005092 A 20180316