Smart hybrid actuator

Abstract

A smart hybrid actuator includes: a body open at one side thereof and having a space portion formed at the inside thereof to reciprocate a piston thereinto, a flow path space portion formed in a wall thereof to flow hydraulic oil therealong, and a cover portion formed at the other side thereof, into which a rod hole is penetrated; a driving motor for driving a hydraulic pump positioned inside the body; the piston extended to the outside from the rod hole of the cover portion in such a manner as to be reciprocated inside the body in the lengthwise direction thereof; and the hydraulic pump provided inside the body and driven by the driving motor, wherein the wall of the body has an inner peripheral wall, and the flow path space portion is formed in the wall of the body.

1 . A smart hybrid actuator comprising:
 a body ( 51 ) open at one side thereof and having a space portion formed at the inside thereof so as to reciprocate a piston ( 531 ) thereinto, a flow path space portion ( 515 ) formed in a wall thereof so as to flow hydraulic oil therealong, and a cover portion ( 512 ) formed at the other side thereof, into which a rod hole ( 511 ) is penetrated,   a driving motor ( 30 ) for driving a hydraulic pump ( 1 ) positioned inside the body ( 51 ),   the piston ( 531 ) extended to the outside from the rod hole ( 511 ) of the cover portion ( 512 ) in such a manner as to be reciprocated inside the body ( 51 ) in the lengthwise direction thereof, and   the hydraulic pump ( 1 ) provided inside the body ( 51 ) and driven by the driving motor ( 30 );   wherein the wall of the body ( 51 ) has an inner peripheral wall ( 513 ), and the flow path space portion ( 515 ) is formed in the wall of the body ( 51 ).   
     
     
         2 . The smart hybrid actuator according to  claim 1 , wherein the wall of the body ( 51 ) comprises the inner peripheral wall ( 513 ) and an outer peripheral wall ( 514 ), and the flow path space portion ( 515 ) is formed between the inner peripheral wall ( 513 ) and the outer peripheral wall ( 514 ) in such a manner as to be extended in the moving direction of the piston ( 531 ). 
     
     
         3 . The smart hybrid actuator according to  claim 1 , wherein the hydraulic pump ( 1 ) is located under the piston ( 531 ) and driven in such a manner as to be connected to a driving shaft ( 31 ) of the driving motor ( 30 ).