Mechanical power amplifier

F - Mech Eng,Light,Heat,Weapons – 15 – B

Patent

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Details

F15B 9/08 (2006.01) B60T 13/24 (2006.01) F15B 9/12 (2006.01)

Patent

CA 2104368

A fluid-operated power booster includes a housing having a main piston slidably mounted therein and a regulating chamber formed in the main piston. A regulating piston is mounted within the regulating chamber and is fixed to an input shaft. The input shaft has a valve mounted on it so that movement of the input shaft and regulating piston in a first direction permits the flow of working fluid into both a working chamber and the regulating chamber, while movement of the input shaft in a second direction causes working fluid to be exhausted from the working chamber. The regulating piston is biased by a mechanical spring whose force must be overcome to initiate movement of the regulating piston and thereby the flow of working fluid to achieve booster action. The output of the device is by way of an output shaft connected to the main piston.

Amplificateur de puissance hydraulique comportant un boîtier à l'intérieur duquel coulisse un piston principal incorporant une chambre de régulation. Un piston de régulation est monté à l'intérieur de la chambre de régulation et relié à un arbre de commande. L'arbre de commande incorpore une soupape qui assure l'arrivée du liquide de travail dans une chambre de travail et la chambre de régulation lors du mouvement de l'arbre de commande dans une première direction, tandis que le mouvement de l'arbre de commande dans une deuxième direction produit l'évacuation du liquide hors de la chambre de travail. Un ressort mécanique s'oppose au mouvement du piston de régulation qui doit surmonter la force du ressort pour établir la circulation du liquide de travail et produire l'effet d'augmentation de puissance. La puissance du dispositif est transmise par l'intermédiaire d'un arbre de sortie relié au piston principal.

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