Abstract: Hydraulic rotary actuator disposes entry and exit lines of the hydraulic fluid within the hydraulic rotary actuator and comprises a floating member with a hollow portion, a rotating member configured to be inserted into the hollow portion, a working fluid supplied to said hollow portion, a servo control valve connected to said floating member configured to control the flow rate, an entry line connected to said servo control valve and further connecting said servo control valve to said floating member, said entry line forming a through-hole that penetrates through said floating member and forming a supply passage for said working fluid, an exit line connecting said hollow portion to said servo control valve and further thereon to outside of floating member, said exit line forming a through-hole that penetrates through said floating member and forming a discharge passage for said working fluid.

Abstract: In the integrated hydraulic rotary actuator according to the present invention, a valve, a sensor, a controller, and a driving unit for controlling the rotary actuator are integrated, so wires connecting them are not exposed to the outside. Accordingly, it is possible to prevent damage due to interference in operation and maintenance is easy. Further, since it is integrated, including a controller, when the actuator according to the present invention is used, connecting with other parts is easy and interference can be reduced. Therefore, it is easy to design and manufacture a resultant product.

Abstract: Hydraulic rotary actuator disposes entry and exit lines of the hydraulic fluid within the hydraulic rotary actuator and comprises a floating member with a hollow portion, a rotating member configured to be inserted into the hollow portion, a working fluid supplied to said hollow portion, a servo control valve connected to said floating member configured to control the flow rate, an entry line connected to said servo control valve and further connecting said servo control valve to said floating member, said entry line forming a through-hole that penetrates through said floating member and forming a supply passage for said working fluid, an exit line connecting said hollow portion to said servo control valve and further thereon to outside of floating member, said exit line forming a through-hole that penetrates through said floating member and forming a discharge passage for said working fluid.

Abstract: Hydraulic rotary actuator disposes entry and exit lines of the hydraulic fluid within the hydraulic rotary actuator and comprises a floating member with a hollow portion, a rotating member configured to be inserted into the hollow portion, a working fluid supplied to said hollow portion, a servo control valve connected to said floating member configured to control the flow rate, an entry line connected to said servo control valve and further connecting said servo control valve to said floating member, said entry line forming a through-hole that penetrates through said floating member and forming a supply passage for said working fluid, an exit line connecting said hollow portion to said servo control valve and further thereon to outside of floating member, said exit line forming a through-hole that penetrates through said floating member and forming a discharge passage for said working fluid.