Control device for a hydraulic differential

F - Mech Eng,Light,Heat,Weapons – 16 – H

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F16H 48/26 (2006.01)

Patent

CA 2519140

The present invention relates to a control device for hydraulic differentials in vehicles. The object of the invention is to provide a control device for a hydraulic differential, which eliminates the necessity of wheel base devices for distributing of the driving torque, and of the clutch of the vehicle, at improved weight parameters and overall dimensions, and at even distribution of the driving torques for the both directions of rotation. The construction of the inventive device includes two control hydraulic loops having a common gate mechanism, which are integrated in the common driving unit of the differential. The construction further includes separate control branches with electromagnetically actuating of the control devices and devices (3) for smooth engagement and for reversing of the hydraulic flow, safety valves (9), electromagnetic control devices (14) and throttles (18).

L'invention concerne un dispositif de commande destiné à des différentiels hydrauliques dans des véhicules, ne nécessitant pas de dispositifs à base de roue pour distribuer le couple moteur et d'embrayage de véhicule et présentant des paramètres de poids améliorés et des dimensions globales améliorées, ainsi qu'une distribution égale des couples moteurs pour les deux sens de rotation. La construction du dispositif selon l'invention comprend deux boucles hydrauliques de commande possédant un mécanisme de porte commun et étant intégrées dans l'unité d'entraînement commune du différentiel. La construction comprend également des branches de commande distinctes permettant de commander de façon électromagnétique les dispositifs de commande, des dispositifs (3) de contact sans à-coup permettant d'inverser le flux hydraulique, des soupapes de sûreté (9), des dispositifs de commande électromagnétiques (14) et des papillons (18).

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