F - Mech Eng,Light,Heat,Weapons – 04 – C
Patent
F - Mech Eng,Light,Heat,Weapons
04
C
F04C 2/344 (2006.01) F04C 15/00 (2006.01)
Patent
CA 2667689
The invention can be used in rotary vane pumps, hydraulic motors, hydrostatic differential gears and transmissions with high efficiency and at a high pressure. The inventive rotary vane machine is provided, in each power variable length chamber (7), with means which are used for insulating the power cavity thereof (8) and comprise at least two movable elements (9), which are arranged in such a way that sliding insulation contacts are formed between the insulation surface of one of the movable elements and the insulation surface of one part of an adaptive unit, between the insulation surface of the other movable element and the insulation surface of the other part of the adaptive unit and between the insulation surfaces of the movable elements (9). At least in one of said contacts, the two insulation surfaces are embodied cylindrical, and, at least in one contact, they are spherical, and at least in one of the remaining contacts, the two insulation surfaces are flat or spherical. Said invention makes it possible to improve the insulation of the working chamber and the variable-length power chambers within the extended range of deformations and tolerances and to increase performance characteristics at a high pressure.
L'invention peut s'utiliser dans des pompes rotatives à palette coulissante, des moteurs hydrauliques, des différentiels hydrostatiques et des transmissions à efficacité plus élevée fonctionnant à pression élevée. Elle concerne plus particulièrement une machine rotative à palette coulissante qui comprend dans chaque chambre de travail de longueur variable (7) des moyens d'isolation de sa cavité de travail (8) comprenant au moins deux éléments mobiles (9) montés de manière à former deux contacts isolants coulissants entre la surface isolante d'un élément mobile et la surface isolante de l'autre partie d'une unité adaptative ainsi qu'entre lessurfaces isolantes des éléments mobiles (9). Au moins dans l'un de ces contacts les deux surfaces isolantes sont cylindriques et sont sphériques dans au moins un des cas; dans au moins un de ces contacts les deux surfaces isolantes sont plates ou sphériques. L'utilisation de l'invention permet de mieux isoler la chambre de travail et des chambres de travail à longueur variable dans une vaste gamme de déformations et de tolérances; on parvient à augmenter ainsi le rendement à pression élevée.
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Stroganov Alexander Anatolevich
LandOfFree
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