F - Mech Eng,Light,Heat,Weapons – 01 – C
Patent
F - Mech Eng,Light,Heat,Weapons
01
C
F01C 3/02 (2006.01) F04C 3/02 (2006.01) F04C 18/50 (2006.01)
Patent
CA 2353988
A rotary machine for a compression or an expansion of a gaseous working fluid comprises a machine housing (10), a rotor (11) which is rotatably mounted within said housing and which, in its peripheral outer surface, is provided with at least one helically extending groove (14), having a depth varying along its length and serving as a flow passage for the working fluid, and a rotatable separation wheel (15) which is provided with a number of blades (17), evenly distributed in the circumferential direction of said wheel and serving as separation elements, successively insertable into the groove (14) of the rotor (11) and arranged to divide the groove (14) into a number of working chambers which follow one after the other in the longitudinal direction of the groove and which, during coordinated simultaneous rotation of the rotor (11) and the separation wheel (15), are brought to move along the groove (14) in the longitudinal direction thereof while successively changing their volume. The wheel blades (17) have peripheral edge portions (26), having an acute-angled wedge-shaped profile and terminating in thin sealing edges (27), moveable along the walls of the groove (14) and located at least approximately flush with the main surfaces (25) of the wheel blades (17), located at the high-pressure sides of the wheel blades (17).
L'invention concerne une machine tournante pour la compression ou la détente d'un fluide de travail gazeux, qui comporte un carter de machine (10), un rotor (11) monté tournant dans ledit carter et doté, dans sa surface périphérique extérieure, d'au moins une rainure (14) hélicoïdale possédant une profondeur variable sur sa longueur et servant de passage d'écoulement pour le fluide de travail. La machine de l'invention comporte également une roue de séparation rotative (15) à plusieurs aubes (17), réparties régulièrement sur sa circonférence et servant d'éléments de séparation, insérables successivement dans la rainure (149 du rotor (11), disposées pour diviser la rainure en plusieurs chambres de travail successives dans le sens longitudinal de la rainure, qui, pendant la rotation simultanée coordonnée du rotor (11) et de la roue de séparation, sont mises en mouvement le long de la rainure (14), dans le sens longitudinal, alors que leur volume est modifié successivement. Les aubes de la roue (17) possèdent des parties marginales périphériques (26) présentant un profil cunéiforme et à angle aigu et se terminant par des bords d'étanchéité minces (27), mobiles le long des parois de la rainure (14) et affleurant au moins approximativement les surfaces principales (25) des aubes (17) de la roue, au niveau des côtés haute pression des aubes (17).
Ridout & Maybee Llp
The Estate Of John Holger Jonsson
LandOfFree
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