Patent ID: 11859709
Assignee: HYUNDAI MOTOR COMPANY
Field: Mechanical elements (Mechanical engineering)
Classification: CPC B  F | IPC B  F

Claim 13:
14. A motor driven power steering device comprising:
a motor; and
a speed reducer configured to decelerate a rotation speed of the motor, wherein the speed reducer comprises:
a worm gear coupled to a drive shaft of the motor and rotatably installed to a speed reducer housing through a bearing;
a worm wheel gear-coupled with the worm gear; and
a rotation member mounted between the worm gear and the bearing and configured to circulate a lubrication agent applied between the worm gear and the worm wheel, wherein the rotation member comprises a rotation body mounted on a shaft of the worm gear and a plurality of blades formed on the rotation body and wherein the worm gear and the worm wheel are oriented so that the lubrication agent applied to the worm gear and the worm wheel flows downward by gravity so that the lubrication agent is discharged toward the worm wheel by rotation of the rotation member.