HYDRAULIC CIRCUIT, HYDRAULIC CYLINDER, PROCESSOR INCLUDING HYDRAULIC CYLINDER, AND CONTROL METHOD OF HYDRAULIC CIRCUIT

PROBLEM TO BE SOLVED: To provide a hydraulic circuit which cools a pressure oil supplied to a hydraulic actuator and controls the operation of the hydraulic actuator, and to provide a hydraulic cylinder driven by using the hydraulic circuit, a processor including the hydraulic cylinder, or a control...

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Bibliographische Detailangaben
1. Verfasser:	ICHIHARA KOICHI
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR DRESSING OR CONDITIONING OF ABRADING SURFACES FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS GRINDING HEATING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING MECHANICAL ENGINEERING PERFORMING OPERATIONS POLISHING SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a hydraulic circuit which cools a pressure oil supplied to a hydraulic actuator and controls the operation of the hydraulic actuator, and to provide a hydraulic cylinder driven by using the hydraulic circuit, a processor including the hydraulic cylinder, or a control method of the hydraulic circuit.SOLUTION: A hydraulic circuit includes: a first hydraulic pump Pp which discharges a pressure oil supplied to a hydraulic actuator 20; a switching valve 11 which is disposed in an oil passage in which a return oil from the hydraulic actuator flows and recovers the return oil from the hydraulic actuator; a cooling part 12 which cools the return oil recovered by the switching valve; and a second hydraulic pump Pc which re-supplies the return oil cooled by the cooling part to the oil passage.