HYDRAULIC SYSTEM FOR INCREASING OPERATION SPEED OF CONSTRUCTION MACHINERY BOOM

A hydraulic system for increasing a speed of a boom of a construction machine includes a boom cylinder configured to operate the boom of the construction machine; a main control valve including a boom control spool that is configured to selectively supply a hydraulic oil from a hydraulic pump to a b...

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Bibliographische Detailangaben
1. Verfasser:	KANG, Byung Il
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR DREDGING FIXED CONSTRUCTIONS FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS FOUNDATIONS HEATING HYDRAULIC ENGINEERING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MECHANICAL ENGINEERING SOIL SHIFTING SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A hydraulic system for increasing a speed of a boom of a construction machine includes a boom cylinder configured to operate the boom of the construction machine; a main control valve including a boom control spool that is configured to selectively supply a hydraulic oil from a hydraulic pump to a boom head chamber and a boom rod chamber of the boom cylinder; a regeneration device connected to the boom head chamber of the boom cylinder through a hydraulic regeneration line and configured to regenerate an energy of the boom cylinder; and a regeneration valve unit provided at the hydraulic regeneration line and including a flow control valve configured to control a flow rate of a hydraulic oil flowing through the hydraulic regeneration line. An energy stored in the regeneration device is directly supplied to the boom cylinder through the flow control valve when the boom ascends.