Hydraulic shock-absorbing jack

A hydraulic shock-absorbing jack particularly for use underwater comprises a cylinder 1 in which a piston 20 associated with an actuated rod 23 is slidable. The piston defines within the cylinder a first actuating chamber 6 provided with a first inlet 2 for actuating liquid and connected to an accum...

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Bibliographische Detailangaben
Hauptverfasser:	QUIN, RENE, MIGLIARESE-CAPUTI, JEAN-LOUIS, WIET, PAUL
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR ENGINEERING ELEMENTS AND UNITS FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MEANS FOR DAMPING VIBRATION MECHANICAL ENGINEERING SHOCK-ABSORBERS SPRINGS SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A hydraulic shock-absorbing jack particularly for use underwater comprises a cylinder 1 in which a piston 20 associated with an actuated rod 23 is slidable. The piston defines within the cylinder a first actuating chamber 6 provided with a first inlet 2 for actuating liquid and connected to an accumulator 7 of elastically variable volume, and a second actuating chamber 8 provided with a second inlet 3 for actuating liquid. The rod is mounted to be slidable relative to the piston such that, in the event of a shock applied to the rod which would otherwise cause an increase in the volume of the second chamber, the rod alone moves relative to the piston without affecting the volume of the second chamber. The rod is provided with an enlarged head 24 located in the first chamber and preventing its disengagement from the piston.