EP 2025939 A3 20100811 - Stepped scroll compressor with staged capacity modulation
Title (en)
Stepped scroll compressor with staged capacity modulation
Title (de)
Abgestufter Spiralverdichter mit Kapazitätsmodulation
Title (fr)
Compresseur à spirale à gradins avec modulation de capacité étagée
Publication
Application
Priority
US 83334207 A 20070803
Abstract (en)
[origin: EP2025939A2] A scroll compressor has a stepped wrap such that there is a greater height outer portion (38;40) and a lesser height more central portion (42;44). Bypass ports (36) are associated with the transition zone between the higher and lesser height portions. By providing the bypass port in a stepped scroll compressor, greater reductions in capacity can be achieved than have been provided in the prior art.
IPC 8 full level
F04C 18/02 (2006.01); F04C 28/10 (2006.01); F04C 28/26 (2006.01)
CPC (source: EP KR US)
F04C 18/02 (2013.01 - KR); F04C 18/0215 (2013.01 - EP US); F04C 18/0261 (2013.01 - EP US); F04C 18/0276 (2013.01 - EP US); F04C 18/16 (2013.01 - KR); F04C 28/10 (2013.01 - EP US); F04C 28/26 (2013.01 - EP US); F04C 2270/58 (2013.01 - EP US)
Citation (search report)
- [X] EP 1507085 A1 20050216 - MITSUBISHI HEAVY IND LTD [JP]
- [I] US 2006140804 A1 20060629 - LEE BYEONG-CHUL [KR], et al
- [I] US 2006177332 A1 20060810 - KIM MYUNG-KYUN [KR], et al
- [Y] EP 1004773 A1 20000531 - DAIKIN IND LTD [JP]
- [Y] JP S5830494 A 19830222 - SANKYO DENKI CO LTD
- [A] US 4383805 A 19830517 - TEEGARDEN ARLO F, et al
- [A] DE 19517748 A1 19951123 - TOYODA AUTOMATIC LOOM WORKS [JP]
- [A] US 6413058 B1 20020702 - WILLIAMS JOHN R [US], et al
- [A] JP H0571477 A 19930323 - TOSHIBA CORP, et al
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
EP 2025939 A2 20090218; EP 2025939 A3 20100811; CN 101358592 A 20090204; JP 2009041564 A 20090226; KR 20090014091 A 20090206; US 2009035167 A1 20090205
DOCDB simple family (application)
EP 08252231 A 20080628; CN 200810134099 A 20080729; JP 2008199294 A 20080801; KR 20080058690 A 20080621; US 83334207 A 20070803