EP 0864751 A3 19990421 - Compressor for use in a transcritical refrigeration cycle system
Title (en)
Compressor for use in a transcritical refrigeration cycle system
Title (de)
Kompressor zur Verwendung in einem überkritischen Kältekreislaufsystem
Title (fr)
Compresseur pour utilisation dans un système de réfrigération à cycle transcritique
Publication
Application
Priority
JP 7657397 A 19970312
Abstract (en)
[origin: EP0864751A2] A compressor (101) for use in a transcritical refrigeration cycle system, comprises a housing (4), a drive shaft (5) supported rotatably by a bearing (24) within the housing (4), a shaft seal (30, 31) interposed between the housing (4) and the drive shaft (5) so as to prevent a high-pressure fluid consisting essentially of a refrigerant and a lubricating oil from leaking from the compressor (101), and a space (40) in which are received the bearing (24) and the shaft seal (30, 31). Pressure within the space (40) is lower than the discharge pressure of the high-pressure fluid. The housing (4) is formed with a lubricating oil return passage (50) for returning lubricating oil separated from the high-pressure fluid discharged from a discharge port (3a) of the compressor (101, to the space (40). <IMAGE>
IPC 1-7
IPC 8 full level
F04B 27/08 (2006.01); F04B 27/10 (2006.01); F04B 39/02 (2006.01); F25B 1/00 (2006.01); F25B 9/00 (2006.01)
CPC (source: EP)
F04B 27/1036 (2013.01); F04B 39/02 (2013.01); F25B 9/008 (2013.01); F25B 2309/061 (2013.01)
Citation (search report)
- [X] US 3062020 A 19621106 - HEIDORN JOHN H
- [X] GB 2058233 A 19810408 - CARRIER CORP
- [A] DE 2626860 A1 19771229 - FRENZEL GMBH & CO
- [A] US 3738118 A 19730612 - JACOBS J
- [A] GB 191110243 A 19111026 - VOELKER WENDELIN [DE]
- [A] GB 237323 A 19250728 - HENRY SELBY HELE SHAW, et al
- [X] PATENT ABSTRACTS OF JAPAN vol. 009, no. 038 (M - 358) 19 February 1985 (1985-02-19)
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0864751 A2 19980916; EP 0864751 A3 19990421; JP H10253177 A 19980925
DOCDB simple family (application)
EP 98301867 A 19980312; JP 7657397 A 19970312