公开(公告)号：US20240240646A1

公开(公告)日：2024-07-18

申请号：US18410173

申请日：2024-01-11

Applicant: Shandong University of Science and Technology

Inventor： Weiwei CUI ,  Fei YAO ,  Xiaonan WANG ,  Changlong RUAN ,  Haobo CAO ,  Laishun YANG ,  Guozhang CHANG ,  Cuiping WANG ,  Guangxi YUE

IPC: F04D29/28 ,  F04D17/10

CPC classification number: F04D29/284 ,  F04D17/10

Abstract: A subsonic compressor, a rotor blade and a method for flow stability enhancement are provided. The subsonic compressor includes a hub and a casing, a tip clearance is formed between a tip of the rotor blade and an inner wall of the casing. The tip clearance is formed as a circumferential diverging leakage passage expanding from a pressure surface side of the rotor blade of the subsonic compressor at the tip to a suction surface side of the rotor blade at the tip.

公开(公告)号：US20230287890A1

公开(公告)日：2023-09-14

申请号：US18065359

申请日：2022-12-13

Applicant: SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Weiwei CUI ,  Kai ZHANG ,  Fei YAO ,  Xinglu WANG ,  Cuiping WANG ,  Laishun YANG

IPC: F04D19/02 ,  F04D29/32

CPC classification number: F04D19/024 ,  F04D29/324

Abstract: A vaneless contra-rotating compressor with multiple contra-rotating interfaces and application of the vaneless contra-rotating compressor is provided, which includes at least two vaneless contra-rotating interfaces. For each of the at least two contra-rotating interfaces, the contra-rotating interface corresponds to two of vaneless contra-rotating rotors. A rotating direction of an upstream rotor of the two vaneless contra-rotating rotors and a rotating direction of a downstream rotor of the two vaneless contra-rotating rotors are opposite. Rectifier stator vanes are not provided among all the rotors to supply sufficient inlet negative pre-swirl for the downstream rotors through the upstream rotors. Only the outlet guide vanes of the last stage, of the vaneless contra-rotating rotors are provided. The number of stages and the number of vaneless contra-rotating interfaces may be set flexibly according to the actual pressurization requirements.