WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Search
 
Browse
 
Translate
 
Options
 
News
 
Login
 
Help
 
Machine translation
1. (WO1994015100) ROTARY SCREW COMPRESSOR WITH SHAFT SEAL
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1994/015100    International Application No.:    PCT/SE1993/001057
Publication Date: 07.07.1994 International Filing Date: 08.12.1993
Chapter 2 Demand Filed:    08.06.1994    
IPC:
F04C 27/00 (2006.01)
Applicants: SVENSKA ROTOR MASKINER AB [SE/SE]; P.O. Box 15085, S-104 65 Stockholm (SE) (For All Designated States Except US).
TIMUSKA, Karlis [SE/SE]; (SE) (For US Only)
Inventors: TIMUSKA, Karlis; (SE)
Agent: KARLSSON, Leif; P.O. Box 15085, S-104 65 Stockholm (SE)
Priority Data:
9203841-3 21.12.1992 SE
Title (EN) ROTARY SCREW COMPRESSOR WITH SHAFT SEAL
(FR) COMPRESSEUR ROTATIF A VIS COMPRENANT UN DISPOSITIF D'ETANCHEITE D'ARBRE
Abstract: front page image
(EN)In a rotary screw compressor at least one of the shaft journals (11) of the rotors (10) has a seal arrangement between the rotor (10) and the bearings (12), which seal arrangement includes at least three frictionless seals (13, 14, 15) separated by annular chambers (16, 17). According to the invention the outermost annular chamber (17) is connected to a source of pressurized air through a supply channel (19) for supplying blocking air to the seal, and another (16) of the annular chambers communicates with a withdrawal channel (18).
(FR)Dans un compresseur rotatif à vis, au moins un des tourillons d'arbre (11) des rotors (10) comprend un dispositif d'étanchéité situé entre le rotor (10) et les paliers (12), ce dispositif d'étanchéité comprenant au moins trois joints (13, 14, 15) sans frottement qui sont séparés par des chambres (16, 17) annulaires. Selon l'invention, la chambre (17) annulaire la plus externe est connectée à une source d'air sous pression par un canal (19) d'alimentation qui alimente le joint en air de blocage et l'autre (16) chambre annulaire communique avec un canal (18) de purge.
Designated States: JP, US.
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE).
Publication Language: English (EN)
Filing Language: English (EN)