Global Patent Index - EP 0864751 A3

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

EP 0864751 A3 19990421 (EN)

Application

EP 98301867 A 19980312

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

F04B 39/02

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)

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