EP 0855508 A1 19980729 - Scroll for scroll compressor
Title (en)
Scroll for scroll compressor
Title (de)
Spiralverdichter
Title (fr)
Compresseur à spirales
Publication
Application
Priority
JP 962597 A 19970122
Abstract (en)
In a scroll compressor, strength of a spiral wall in a scroll is improved, without deteriorating workability or increasing liquid leakage due to internal compression. A part of a spiral in a mobile scroll (as well as in a fixed scroll) around the central inner end (as well as around the outer end) formed by a curve approaching the origin of an involute forming the inner surface of the spiral and by a curve approaching the origin of an involute forming the outer surface of the spiral is shaped differently from that of conventional examples, its wall being thicker at the base and tapered toward the edge. Therefore, strength of the spiral wall in a scroll is improved as compared with a conventional example, and neither compression nor sealing capacity is affected since neither of the parts of the spiral with tapered walls mentioned above acts as a sealing surface. <IMAGE> <IMAGE>
IPC 1-7
IPC 8 full level
F04C 18/02 (2006.01)
CPC (source: EP)
F04C 18/0246 (2013.01); F04C 18/0269 (2013.01)
Citation (applicant)
- JP S5813184 A 19830125 - SANKYO DENKI CO LTD
- JP H04279785 A 19921005 - TOYODA AUTOMATIC LOOM WORKS
- JP H03225002 A 19911004 - HITACHI LTD
Citation (search report)
- [XY] US 5037279 A 19910806 - SUEFUJI KAZUTAKA [JP], et al
- [XY] EP 0392975 A1 19901017 - AGINFOR AG [CH]
- [A] EP 0106288 A1 19840425 - SANDEN CORP [JP]
- [A] US 5059102 A 19911022 - TOKUMITSU KIYONORI [JP], et al
- [X] PATENT ABSTRACTS OF JAPAN vol. 13, no. 376 (M - 862)<3724> 21 August 1989 (1989-08-21)
- [A] PATENT ABSTRACTS OF JAPAN vol. 8, no. 9 (M - 268)<1446> 14 January 1984 (1984-01-14)
Designated contracting state (EPC)
DE FR
DOCDB simple family (publication)
DOCDB simple family (application)
EP 98100894 A 19980120; JP 962597 A 19970122