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.