F - Mech Eng,Light,Heat,Weapons – 04 – C
Patent
F - Mech Eng,Light,Heat,Weapons
04
C
F04C 2/08 (2006.01) F01C 1/08 (2006.01) F04C 2/10 (2006.01) F04C 18/08 (2006.01)
Patent
CA 2497491
The invention relates to a closed system rotary machine. The inventive machine comprises an inner shaped element (1) and an outer shaped element (2) which define therebetween cavities or capsules having a variable volume (V¿1?, , V¿9?). The contact points which define the capsules (C¿1?, , C¿9?) are disposed along lines of action (CA¿1?, CA¿2?, CA¿3?) which are concurrent at junction points B<SB>N</SB> and B<SB>M</SB>, where said cavities begin and end respectively. According to the invention, the contacts (C¿2?) at points located on the tangent (T) common to both pitch circles (6, 7) are osculating elements with a shared centre of curvature which is situated at the rolling point (R) of the pitch circles (6, 7). The invention can be used to ensure that the capsules form and disappear very gradually and to facilitate the distribution of the capsules when they are forming and disappearing in order to increase the leak paths.
La machine comprend un organe profilé intérieur 1 et un organe profilé extérieur 2 qui définissent entre eux des cavités - ou capsules - à volume variable (V1,~, V9). Les points de contact délimitant les capsules (C1,~, C9) suivent des lignes d'action (CA1, CA2, CA3) concourants en des points de bifurcation BN et BM où naissent et respectivement meurent les cavités. Suivant l'invention les contacts (C2) en ces points situés sur la tangente (T) commune aux deux cercles primitifs (6, 7), sont osculateurs avec un centre de courbure commun situé au point de roulement (R) des cercles primitifs (6, 7). Utilisation pour rendre très progressive la formation et la disparition des capsules et faciliter la distribution des capsules lorsqu'elles naissent et disparaissent, augmenter les trajets de fuite.
Centre National de La Recherche Scientifique
Ecole Polytechnique
Fetherstonhaugh & Co.
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