ES240279A1 - A valvular device that responds to the pressure for hydraulic systems (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Valvular device that responds to the pressure for hydraulic systems, comprising: a casing or hollow box; a partition inside said box, which divides the interior into an upper chamber and a lower chamber; a fluid outlet from the upper chamber; a first pressurized fluid inlet in the upper chamber; a second discharge fluid inlet in the upper chamber; a second discharge fluid inlet in the lower chamber; an opening disposed in said partition to bring the upper chamber into communication with the lower chamber; a cylinder located in the wall of the lower chamber, in axial alignment with said first entrance and closed at one end, exceeding the area of the straight section of said first entrance, of the area of the straight section of said cylinder, by a defined amount ; a valve member having on its upper end a first face for closing said inlet, a second face between its ends for closing said opening and a third face disposed on a flange acting as a plunger, integral with said valve member and received in the inside of said cylinder so that it faces toward the closed end thereof and constitutes a fluid pressure receiving face opposite said first face; a bore extending axially through said valve member from said first face to said third face; a compression spring received inside said cylinder to force said valve member into a position in which said first inlet, and said second face is separated from said opening; and means for regulating the spring force of said compression spring. (Machine-translation by Google Translate, not legally binding)