Hydraulic unit

Details Hydraulic unit Hydraulic unit

F - Mech Eng,Light,Heat,Weapons

15

B

F15B 11/15 (2006.01) F15B 15/20 (2006.01)

Patent

CA 2239353

The invention relates to a hydraulic unit for feeding an object at a desired feed speed a distance in a given feed direction during a working stroke and, in a return stroke, bringing the object back to the initial position at a considerably greater return speed, comprising a double-acting working cylinder (1) with a first piston (16), the piston rod (17) of which is connected to the object which is to be moved, and a receiver cylinder (2) which is provided with a second piston (28) and designed to be filled with oil from the working cylinder during the return stroke, the first piston (16) and the second piston (28) being interconnected by a rigid connecting member (31) which forces the second piston to follow the movements of the first piston.

Ce module hydraulique permet d'amener un objet à une vitesse, à une distance et dans une direction données pendant un temps de travail puis de ramener, lors d'un temps de retour, cet objet à sa position initiale beaucoup plus rapidement. Ce module comprend un cylindre opérationnel (1) à double effet doté d'un premier piston (16) dont la tige de piston (17) est reliée à l'objet à déplacer , et un cylindre récepteur (2) doté d'un deuxième piston (28) conçu pour être rempli d'huile provenant du cylindre opérationnel pendant le temps de retour. Ces deux pistons (16, 28) sont reliés par un élément rigide (31) qui force le deuxième piston à suivre les déplacements du premier.

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