ES229383U - Oleonfumatic shock absorber cylinder. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Oleo-pneumatic shock absorber cylinder, of the type consisting of a high-strength tubular body that houses at one end a sliding piston, with the appropriate sealing gaskets or a pneumatic bladder filled with an inert gas under pressure, which is completely separated from the oil hydraulic fluid contained in the apparatus, essentially characterized in that the rod whose head immediately receives the action of the forces to be dampened and is guided in the cylinder cover by a tubular sleeve of an antifriction material, has axially a perforation along its entire length, sealed in the part of its head and prolonged in increasing diameter in the opposite zone corresponding to the part in contact with the oil housed in the anterior chamber of the apparatus, conjugating from said axial perforation an elongated tubular component whose mid-posterior part progressively increases in diameter and is axially perforated, there is a plurality of radial holes in its end of smaller width, while the part of greater diameter has an axial housing for a check valve, such as one of the type of ball and pusher spring, whose cavity is communicated, through a axial hole and with a plurality of radial holes, with the interior of the tubular component and with a perforation in the central static part of the body of the apparatus separating the two main cavities thereof, with a radial perforation in which a screw is arranged of peculiar configuration, with lateral planes, for the regulation of the passage of oil to and from the accumulator proper, determining the useful section of hydraulic circulation towards the exterior space to the bladder, being the physical equivalent of the apparatus a hydraulic cylinder of simple effect whose rod receives the efforts to dampen, a hydraulic accumulator in communication with the active chamber of the cylinder through two branches in parallel, one of which comprises a flow regulation valve, a one-way valve and a valve. Of adjustable regulation of adjustable flow, manually from the outside, while the other branch comprises a valve of adjustable passage, with play of the previous one. (Machine-translation by Google Translate, not legally binding)