Global Patent Index - EP 0030619 B1

EP 0030619 B1 19850102 - ROTOR COMPRESSOR, ESPECIALLY SCREW ROTOR COMPRESSOR, WITH LUBRICANT SUPPLY TO AND DRAINAGE THEREOF FROM THE BEARINGS

Title (en)

ROTOR COMPRESSOR, ESPECIALLY SCREW ROTOR COMPRESSOR, WITH LUBRICANT SUPPLY TO AND DRAINAGE THEREOF FROM THE BEARINGS

Publication

EP 0030619 B1 19850102 (DE)

Application

EP 80106829 A 19801106

Priority

DE 2948992 A 19791205

Abstract (en)

[origin: US4394113A] An improved rotor compressor, particularly a screw-type compressor, for compressing a gas is disclosed. The compressor is provided with a housing having an annular drain space surrounding rotor shafts at a location between each shaft bearing and the working space for removing escaping lubricant and gas. The drain space is connected through a drain passage to a closed collecting chamber which is substantially under the intake pressure of the compressor. A return passage is provided for returning gas to at least one of the intake and the working space of the compressor and for returning lubricant to a lubrication circuit.

IPC 1-7

F04C 27/00; F04C 29/02

IPC 8 full level

F04C 18/16 (2006.01); F04C 27/00 (2006.01); F04C 29/02 (2006.01); F04C 29/04 (2006.01)

CPC (source: EP US)

F04C 27/009 (2013.01 - EP US); F04C 29/02 (2013.01 - EP US)

Citation (examination)

Designated contracting state (EPC)

BE CH DE FR GB IT LI

DOCDB simple family (publication)

EP 0030619 A1 19810624; EP 0030619 B1 19850102; AR 222589 A1 19810529; AU 537335 B2 19840621; AU 6468580 A 19810611; BR 8007894 A 19810616; CA 1156627 A 19831108; DE 2948992 A1 19810611; DE 3069916 D1 19850214; IN 154526 B 19841103; JP H0116350 B2 19890323; JP S5688986 A 19810718; US 4394113 A 19830719

DOCDB simple family (application)

EP 80106829 A 19801106; AR 28349880 A 19801205; AU 6468580 A 19801125; BR 8007894 A 19801202; CA 365870 A 19801201; DE 2948992 A 19791205; DE 3069916 T 19801106; IN 19CA1981 A 19810108; JP 16973880 A 19801203; US 21372280 A 19801205