EP 0478939 A2 19920408 - Two-stage rotary compressor for refrigerating plants.
Title (en)
Two-stage rotary compressor for refrigerating plants.
Title (de)
Zweistufiger Drehkolbenkompressor für Kälteanlagen.
Title (fr)
Compresseur rotatif à deux étages pour des installations frigorifiques.
Publication
Application
Priority
IT 2187890 U 19901003
Abstract (en)
A two-stage rotary compressor for refrigerating plants comprising a first low-pressure compression unit (11) and a second high-pressure compression unit (12), the rotors (13, 14) of which are connected to a single control motor (16) and in which the lubricating oil circuit comprises an intermediate oil chamber (27) connected respectively to the delivery side of the low-pressure compression unit (11) via a first oil separator (22) and to a feeding pump (17) which supplies the lubricating oil to the high-pressure compression unit (12); the oil separated from the high-pressure delivery of the second compression unit (12) in turn supplies the low-pressure compression unit (11). <IMAGE>
IPC 1-7
IPC 8 full level
F04C 29/02 (2006.01); F25B 1/10 (2006.01); F25B 31/00 (2006.01); F25B 40/02 (2006.01)
CPC (source: EP)
F04C 29/02 (2013.01); F25B 1/10 (2013.01); F25B 31/002 (2013.01); F25B 40/02 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR LI LU NL SE
DOCDB simple family (publication)
EP 0478939 A2 19920408; EP 0478939 A3 19920422; IT 220269 Z2 19930915; IT 9021878 U1 19920403; IT 9021878 V0 19901003
DOCDB simple family (application)
EP 91114044 A 19910822; IT 2187890 U 19901003