EP 0842362 B1 20021113 - SPIRAL COMPRESSOR, USEFUL IN PARTICULAR TO GENERATE COMPRESSED AIR FOR RAIL VEHICLES
Title (en)
SPIRAL COMPRESSOR, USEFUL IN PARTICULAR TO GENERATE COMPRESSED AIR FOR RAIL VEHICLES
Title (de)
SPIRALVERDICHTER, INSBESONDERE ZUM EINSATZ BEI DER DRUCKLUFTERZEUGUNG FÜR SCHIENENFAHRZEUGE
Title (fr)
COMPRESSEUR A SPIRALES, UTILE NOTAMMENT POUR GENERER DE L'AIR COMPRIME DANS DES VEHICULES SUR RAILS
Publication
Application
Priority
- DE 9601330 W 19960719
- DE 19528071 A 19950731
Abstract (en)
[origin: DE19528071A1] In a totally oil-free spiral compressor (1) with high suction volume flows and compression ratio, useful in particular to generate compressed air for rail vehicles, the spirals are arranged on one side only and measures are taken to accurately guide both spirals relatively to each other. For that purpose, a compression crown (15) is associated with an axial gap to one of the spirals (spiral 7) and the second spiral (spiral 9) is forcibly driven within the compression crown (15). The forced driving arrangement consists of supporting rollers (17) that extend axially from the second spiral towards the compression crown and that restrictedly roll in bores (19) pierced in the compression crown (15) and shaped as guiding rings, so that both spirals describe orbits with respect to each other, since their axes are offset and they are forcibly guided by the supporting rollers that roll in the bores.
IPC 1-7
IPC 8 full level
F01C 17/06 (2006.01); F04C 18/02 (2006.01)
CPC (source: EP US)
F01C 17/06 (2013.01 - EP US); F04C 18/023 (2013.01 - EP US)
Designated contracting state (EPC)
BE DE IT SE
DOCDB simple family (publication)
DE 19528071 A1 19970206; DE 59609873 D1 20021219; EP 0842362 A1 19980520; EP 0842362 B1 20021113; JP H11509903 A 19990831; US 6062833 A 20000516; WO 9705390 A1 19970213
DOCDB simple family (application)
DE 19528071 A 19950731; DE 59609873 T 19960719; DE 9601330 W 19960719; EP 96924755 A 19960719; JP 50709097 A 19960719; US 38398 A 19980130