EXCAVATOR

An excavator (100) includes a lower traveling body (1); an upper turning body (3) pivotally installed to the lower traveling body (1); an engine (11) installed in the upper turning body (3); a main pump (14) driven by the engine (11); and a controller (30) configured to control a flow rate of hydrau...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SANO, Kiminori, SHIRATANI, Ryuji
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING COMBUSTION ENGINES CONTROLLING COMBUSTION ENGINES DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR DREDGING FIXED CONSTRUCTIONS FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS FOUNDATIONS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS HYDRAULIC ENGINEERING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MECHANICAL ENGINEERING POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS SOIL SHIFTING SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	An excavator (100) includes a lower traveling body (1); an upper turning body (3) pivotally installed to the lower traveling body (1); an engine (11) installed in the upper turning body (3); a main pump (14) driven by the engine (11); and a controller (30) configured to control a flow rate of hydraulic oil discharged by the main pump (14). The controller 30 is configured to, when a load of the engine (11) increases, delay a response of the main pump 14 until an actual torque of the engine (11) rises up to a level corresponding to the load of the engine (11).