EP 0069859 B1 19851113 - COMPRESSOR AGGREGATE
Title (en)
COMPRESSOR AGGREGATE
Publication
Application
Priority
DE 3123631 A 19810615
Abstract (en)
[origin: US4436490A] A compressor and its external-rotor drive motor are arranged on a common stationary shaft in a unitary housing. On the end of the stationary shaft which is away from the compressor, a friction pump is mounted for pumping lubricant from a supply in the unit housing into an axial canal drilled in the stationary shaft. The impeller of the friction pump consists of a hollow cylinder which is coupled to the external rotor. The hollow cylinder is received in a pump housing which has an annular space between an inner and an outer housing part into which the hollow cylinder extends, forming an inner and an outer gap. The two gaps are in communication with each other and each contains at least one constriction which forces oil carried by rotation of the hollow cylinder past openings in the inner housing into the axial canal.
IPC 1-7
IPC 8 full level
F04B 27/06 (2006.01); F04B 39/02 (2006.01); F04D 11/00 (2006.01); F16N 13/20 (2006.01)
CPC (source: EP US)
F04B 27/0606 (2013.01 - EP US); F04B 39/0261 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0069859 A2 19830119; EP 0069859 A3 19840321; EP 0069859 B1 19851113; AT E16518 T1 19851115; DE 3123631 A1 19821230; DE 3267390 D1 19851219; DK 151147 B 19871109; DK 151147 C 19880411; DK 265182 A 19821216; IE 52864 B1 19880330; IE 821412 L 19821215; JP S57212384 A 19821227; JP S636755 B2 19880212; US 4436490 A 19840313
DOCDB simple family (application)
EP 82104890 A 19820603; AT 82104890 T 19820603; DE 3123631 A 19810615; DE 3267390 T 19820603; DK 265182 A 19820614; IE 141282 A 19820614; JP 10055582 A 19820611; US 38268582 A 19820527