Patent ID: 6983760

Claim:
A vaned spool type directional control valve comprising: a vaned spool including a spool shaft, a valve portion extending from one side of the spool shaft, a vane portion extending from the other side of the spool shaft, and a groove penetrating the spool shaft and the valve portion; and a valve main body including: a chamber including a shaft support portion rotatably supporting the spool shaft, a valve room extending from one side of the shaft support portion and accommodating the valve portion of the vaned spool so that the valve portion rotates and moves in a sealed state, and a vane room extending from the other side of the shaft support portion and accommodating the vane portion of the vaned spool so that the vane portion rotates and moves in a sealed state; a plurality of main ports through which fluid passes via the valve room of the chamber; and two vane ports through which pilot fluid passes formed at the opposite sides of the vane room of the chamber, wherein the vaned spool is rotated by pressure of the pilot fluid passing through the vane ports and two of the main ports are connected with each other via the groove according to the position of the valve portion of the vaned spool.