ES200564U - Perfected hydraulic pump. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Improved hydraulic pump characterized in that it consists of a circle of pumping pistons housed in axial conduits of a central block constituting the housing, from which block said pistons tend to protrude by means of extractor springs, so that each piston in its position of protrusion open to allow through to the passage inside the axial conduit of the fluid to be pumped from a cavity of the housing, while the same pistons are pressed against the sloping face of an oblique bearing of a shaft operable by a motor in both directions, this is reversible, so that the rotation of said bearing on the pistons forces each of these to retract antagonistically to enclose and compress the fluid that has penetrated the axial conduit, thus driving it towards a later circular channel of the own casing, to which all the axial conduits of the pistons flow and from which channel the fluid flows through a hole pumped; making the greater or lesser inclination of the oblique bearing effective in order to vary the inlet flow in the block. (Machine-translation by Google Translate, not legally binding)