公开(公告)号：US20250067276A1

公开(公告)日：2025-02-27

申请号：US18724450

申请日：2022-11-18

Applicant: Hanon Systems

Inventor： Cheolun PARK ,  Jun Ho KIM ,  Ok Ryul MIN ,  Dalhyun AHN ,  Moon-Seok CHOI

IPC: F04D29/32 ,  F04D29/58 ,  F04D29/66

Abstract: The present invention relates to a fan capable of reducing high-frequency noise during fan operation and ensuring productivity, the fan including a fan hub open on one side, a rotor inserted and bolted to the fan hub, and a damping member disposed between the inner surface of the fan hub and the outer surface of the rotor and contacting both the fan hub and the rotor, mitigating vibration and high-frequency noise during operation.