Axial piston variable displacement machine

Details Axial piston variable displacement machine Axial piston variable displacement machine

F - Mech Eng,Light,Heat,Weapons

03

C

F03C 1/06 (2006.01) F03C 1/40 (2006.01) F04B 1/32 (2006.01)

Patent

CA 2330278

The invention relates to an axial piston variable displacement machine for converting hydraulic work into mechanical work or vice versa, comprising a plurality of hydraulic cylinders (2) that are rotationally mounted with substantially parallel axes (2a) around a common longitudinal axis, movable pistons (4) that are arranged in the cylinder and connected to a pivoting plate (8), a regulating device enabling the pivoting angle of said plate (8) to be regulated, and a sleeve (19) that does not rotate in relation to the cylinders (2) and is arranged outside the plate (8), whereby means of engagement are provided on the plate (8) and on the sleeve (19) to transmit torque between the plate (8) and the sleeve (19). Greater efficiency is achieved by fitting a toothed gear (23) on the external periphery of the sleeve (19) in order to capture torque from the sleeve (19) or to introduce it into said sleeve.

L'invention concerne un moteur à cylindrée variable à pistons axiaux pour convertir un travail hydraulique en un travail mécanique ou inversement, comprenant une pluralité de vérins hydrauliques (2), disposés avec des axes (2a) sensiblement parallèles de manière à tourner autour d'un axe longitudinal (3) commun, des pistons (4) montés mobiles dans les vérins (2) et qui communiquent avec une plaque (8) pivotante, ainsi qu'un dispositif de réglage permettant d'ajuster l'angle de pivotement de la plaque (8), un manchon (19) ne pouvant pas tourner par rapport aux vérins (2) et se situant en dehors de la plaque (8). Il est prévu sur la plaque (8) et sur le manchon (19), des éléments de contact pour transmettre le couple entre la plaque (8) et le manchon (19). On obtient un meilleur rendement du fait qu'une roue dentée (23) est montée sur le pourtour extérieur du manchon (19), pour recevoir un couple provenant du manchon (19) ou l'introduire dans ledit manchon.

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