PUMP CONTROL DEVICE FOR HYDRAULIC DRIVE MACHINE

PROBLEM TO BE SOLVED: To constitute a hydraulic system with a simple structure at a low cost and also cope with softly for the addition of a service valve and improve a control accuracy by carrying out a negative control without providing a bleed opening on the spool of a flow rate control valve and...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	NAGIRA TOKUJI, KAMATA SEIJI
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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