ELECTRIC HYDRAULIC ACTUATOR

An electro-hydraulic actuator, includes: a motor 3 configured to output rotative power; an external gear pump 7 configured to be activated by the motor; a hydraulic actuator 5 configured to be operated by a pressurized working fluid supplied by the external gear pump; a manifold block 6 in which a f...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	AZUMA, Yasuhiro, KASUGA, Toshishige
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING BRAKES CLUTCHES COUPLINGS FOR TRANSMITTING ROTATION DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR ENGINEERING ELEMENTS AND UNITS FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MECHANICAL ENGINEERING SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	An electro-hydraulic actuator, includes: a motor 3 configured to output rotative power; an external gear pump 7 configured to be activated by the motor; a hydraulic actuator 5 configured to be operated by a pressurized working fluid supplied by the external gear pump; a manifold block 6 in which a flow channel forming a working fluid circuit of the hydraulic actuator is incorporated; a first portion configured to store the motor; a second portion configured to store the external gear pump, the hydraulic actuator, and a reservoir; and a coupling portion 2 configured to couple the first portion and the second portion with each other in a liquid-tight state, wherein the coupling portion includes a communication hole 21 through which the first portion and the second portion communicate with each other, a rotational shaft 31 of the motor and a driving shaft 71 of the external gear pump are joined to each other in the communication hole, and the external gear pump is attached to the coupling portion while being stored in the manifold block.