公开(公告)号：US12276242B1

公开(公告)日：2025-04-15

申请号：US18985624

申请日：2024-12-18

Applicant: Harbin Engineering University

Inventor： Yipeng Cao ,  Yao Song ,  Chen Liu ,  Xiaochen Zhao ,  Jiaxuan Lin ,  Shaoran Du ,  Jie Yang ,  Jie Guo ,  Xinyu Zhang

IPC: F02M35/12 ,  F02M35/10

Abstract: Provided is an intake bypass recirculation structure capable of silencing, including: an intake bypass recirculation structure body and a structure-conducted silencing device. An intake bypass recirculation cavity is provided on the intake bypass recirculation structure body. An inlet of the intake bypass recirculation structure and an outlet of the intake bypass recirculation structure that are provided on the intake bypass recirculation structure body are each connected to the intake bypass recirculation cavity. The structure-conducted silencing device is disposed inside the intake bypass recirculation cavity. In this application, during working, noise generated by a compressor is transmitted into the intake bypass recirculation cavity via an inlet of the intake bypass recirculation structure, and transmitted outside via the outlet of the intake bypass recirculation structure.

公开(公告)号：US12297847B1

公开(公告)日：2025-05-13

申请号：US18942128

申请日：2024-11-08

Applicant: Harbin Engineering University

Inventor： Yipeng Cao ,  Shaoran Du ,  Chen Liu ,  Yao Song ,  Jie Yang ,  Xiaochen Zhao ,  Jie Guo ,  Xinyu Zhang

IPC: F04D29/66 ,  F04D17/10 ,  F04D29/28

Abstract: A noise-reducing and nonuniform tip clearance structure of centrifugal compressor is provided, which includes a compressor impeller body and a compressor impeller shroud. The compressor impeller shroud is circumferentially wrapped outside the compressor impeller body, and multiple impeller blade bodies are uniformly arranged in a circumferential direction of the compressor impeller body. A clearance between an impeller tip meridian line of the impeller blade body and an impeller shroud meridian line on the compressor impeller shroud is an impeller tip clearance. The impeller tip clearance gradually decreases in a direction from a leading edge to a trailing edge of the impeller blade body, and a change rate of the impeller tip clearance in the direction from the leading edge to the trailing edge of the impeller blade body also gradually decreases.