EP 0330555 B1 19910605 - AIR COMPRESSION ARRANGEMENT WITH AN OILLESS ROTARY COMPRESSOR, AND RELATIVE PROCESS
Title (en)
AIR COMPRESSION ARRANGEMENT WITH AN OILLESS ROTARY COMPRESSOR, AND RELATIVE PROCESS
Publication
Application
Priority
FR 8802115 A 19880223
Abstract (en)
[origin: EP0330555A1] A rotary compressor (1) delivers to a reservoir (5) and the pressure thereby prevailing in the reservoir (5) delivers a liquid (6) to an injection hole (11) on the compressor, by way of a filter (8) and a cooler (9). The liquid ensures the internal tightness of the compressor. It is pressurised in the compressor and separated under the effect of gravity in the reservoir (5), thereby renewing the liquid (6). <??>The liquid (6) is an aqueous borate solution, preferably of tetrahydrate dipotassium tetraborate. <??>Used in order to produce compressed air without oil, without water corrosion of the compressor or development of bacteria in the water or significant separation of the borate with compressed air. <IMAGE>
IPC 1-7
IPC 8 full level
F04C 29/04 (2006.01); F04C 29/00 (2006.01)
CPC (source: EP KR US)
F04C 29/0007 (2013.01 - EP US); F04D 25/00 (2013.01 - KR); Y10S 418/01 (2013.01 - EP US)
Designated contracting state (EPC)
DE ES FR GB IT SE
DOCDB simple family (publication)
EP 0330555 A1 19890830; EP 0330555 B1 19910605; DE 68900099 D1 19910711; JP H01294989 A 19891128; KR 890013354 A 19890922; US 4968231 A 19901106
DOCDB simple family (application)
EP 89400452 A 19890217; DE 68900099 T 19890217; JP 4193789 A 19890223; KR 890002143 A 19890223; US 31806089 A 19890217