EP 2025939 A2 20090218 - 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)
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 (applicant)
- EP 1507085 A1 20050216 - MITSUBISHI HEAVY IND LTD [JP]
- US 2006140804 A1 20060629 - LEE BYEONG-CHUL [KR], et al
- US 2006177332 A1 20060810 - KIM MYUNG-KYUN [KR], et al
- EP 1004773 A1 20000531 - DAIKIN IND LTD [JP]
- JP S5830494 A 19830222 - SANKYO DENKI CO LTD
- US 4383805 A 19830517 - TEEGARDEN ARLO F, et al
- DE 19517748 A1 19951123 - TOYODA AUTOMATIC LOOM WORKS [JP]
- US 6413058 B1 20020702 - WILLIAMS JOHN R [US], et al
Designated contracting state (EPC)
BE DE ES FR GB IT
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