Hydraulic cylinder cushion device with check ring

A hydraulic cylinder cushion device installed in a hydraulic cylinder provided, in which a rod (20) performs reciprocating movement in a cylinder tube (10), and which discharges high-pressure hydraulic fluid that is formed in pressure chambers between a piston (40) and a head cover (30) and between...

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Bibliographische Detailangaben
1. Verfasser:	CHUNG, YUN HYUN
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS HEATING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MECHANICAL ENGINEERING SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A hydraulic cylinder cushion device installed in a hydraulic cylinder provided, in which a rod (20) performs reciprocating movement in a cylinder tube (10), and which discharges high-pressure hydraulic fluid that is formed in pressure chambers between a piston (40) and a head cover (30) and between the piston and a cover end (80) during a stroke-end operation. The hydraulic cylinder cushion device includes a check ring (90) which is installed in a groove provided on an inner surface of the head cover (30) or the cover end (80), and moves to one side in the groove so as to close a flow path during rushing into a stroke end while it moves to the other side in the groove so as to open the flow path during an initial operation in the stroke end.