Displacement machine for compressible media

F - Mech Eng,Light,Heat,Weapons – 04 – D

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F04D 17/00 (2006.01) F01C 1/02 (2006.01) F04C 29/00 (2006.01)

Patent

CA 2245629

A displacement machine for compressible media includes a displacer (1) which is arranged in a stationary housing. When the machine is operating, the displacer executes a circulating but non-rotating movement. Spiral bars (3, 3') are arranged perpendicularly on the disk (2). The bars (3, 3') have outer sealing faces (30, 30') and inner sealing faces (31, 31'). The beginning (32) of the outer sealing faces (30, 30') is offset with respect to the beginning (33) of the inner sealing faces (31, 31'), as viewed in the circumferential direction. This is correspondingly true of the end (34, 35) of the sealing faces. The bars (3, 3') engage in spiral delivery spaces in the housing and, when the machine is operating, the sealing faces (30, 30', 31, 31'), together with the cylindrical walls of the delivery spaces, form working chambers in a uniform rotational angle interval of the drive.

Machine volumétrique pour fluide compressible comprenant un piston (1) qui est placé dans un boîtier fixe. Lorsque la machine fonctionne, le piston se déplace, mais n'effectue pas de mouvement rotatif. Des barres spiralées (3, 3') sont placées perpendiculairement sur le disque (2). Ces barres (3, 3') comportent des surfaces d'étanchéité extérieures (30, 30') et des surfaces d'étanchéité intérieures (31, 31'). Le commencement (32) des surfaces d'étanchéité extérieures (30, 30') est décalé par rapport au commencement (33) des surfaces d'étanchéité intérieures (31, 31'), vu dans le sens de la circonférence. C'est également le cas de l'extrémité (34, 35) des surfaces d'étanchéité. Les barres (3, 3') s'engagent dans des espaces de sortie en spirale situés dans le boîtier et, lorsque la machine fonctionne, les surfaces d'étanchéité (30, 30'. 31, 31') en combinaison avec les parois cylindriques des espaces de sortie, constituent des chambres de travail selon un intervalle d'angle de rotation uniforme du dispositif d'entraînement.

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