F - Mech Eng,Light,Heat,Weapons – 04 – C
Patent
F - Mech Eng,Light,Heat,Weapons
04
C
F04C 15/00 (2006.01) F01C 17/00 (2006.01)
Patent
CA 2221117
The invention relates to an airtight rotating driving device with eccentricity, especially for volumetric pump. The device comprises a bent shaft (1) presenting an input axis (5) and an output axis (10) parallel and off centered in such a way as to carry out an orbital circular movement, and an airtight and non-rotatable sleeve (14) surrounding the shaft and comprising two metallic bellows (19, 20) linked by a guiding ring (21) mounted longitudinally in a sliding relation on the sloped intermediate section (17) of the shaft. Utilisation for converting a rotating movement into an orbital circular movement with an absolute airtightness.
L'invention concerne un dispositif d'entraînement rotatif étanche à excentricité, notamment pour pompe volumétrique. Le dispositif comprend un arbre coudé (1), présentant un axe d'entrée (5) et un axe de sortie (10) parallèle et excentré de manière à effectuer un mouvement orbital circulaire, et une manchette (14) étanche et non tournante entourant l'arbre et comportant deux soufflets métalliques (19, 20) reliés par une bague de guidage (21) montée à coulissement longitudinal sur le tronçon intermédiaire incliné (17) de l'arbre. Utilisation pour transformer un mouvement rotatif en mouvement orbital circulaire avec une étanchéité absolue.
Mouvex
Riches Mckenzie & Herbert Llp
LandOfFree
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