EP 0381682 B1 19911204 - ROTARY PISTON COMPRESSOR
Title (en)
ROTARY PISTON COMPRESSOR
Publication
Application
Priority
- DE 3733398 A 19871002
- DE 3744637 A 19871231
Abstract (en)
[origin: WO8902985A1] A rotary piston compressor with parallel internal axes has a driven external rotor (12) with a compression chamber (17) in which an internal rotor (20) is rotatably mounted. The internal rotor (20) is hollow, made of light metal, and mounted on a shaft (21). Perfect balancing of the masses of the internal rotor (20) is achieved by heavy metal pins (42, 43) which extend the full length of the internal rotor (20). The heavy metal pin (43) also prevents rotation of the internal rotor (20) about the shaft (21) when these parts are not monolithic.
IPC 1-7
IPC 8 full level
F04B 27/06 (2006.01); F01B 15/00 (2006.01); F04C 18/10 (2006.01); F04C 29/00 (2006.01)
CPC (source: EP US)
F01B 15/00 (2013.01 - EP US); F04C 18/10 (2013.01 - EP US); F04C 29/0021 (2013.01 - EP US)
Citation (examination)
US 883271 A 19080331 - WILSON GEORGE [GB]
Designated contracting state (EPC)
DE FR GB IT SE
DOCDB simple family (publication)
WO 8902985 A1 19890406; DE 3744637 A1 19890413; DE 3866706 D1 19920116; EP 0381682 A1 19900816; EP 0381682 B1 19911204; JP H02502035 A 19900705; JP H0357308 B2 19910830; US 5076768 A 19911231
DOCDB simple family (application)
DE 8800601 W 19880930; DE 3744637 A 19871231; DE 3866706 T 19880930; EP 88908150 A 19880930; JP 50755288 A 19880930; US 46630690 A 19900330