一种辅助动力装置离心压气机气动布局结构
The aerodynamic layout structure of the centrifugal compressor, which incorporates a composite swept blade configuration and an expanded zone design, solves the problems of low efficiency and insufficient stability caused by tip leakage flow, achieving a highly efficient and stable operating mode and improving the performance of the auxiliary power unit.
CN116357614BActive Publication Date: 2026-07-17JINCHENG NANJING ELECTROMECHANICAL HYDRAULIC PRESSURE ENG RES CENT AVIATION IND OF CHINA
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- JINCHENG NANJING ELECTROMECHANICAL HYDRAULIC PRESSURE ENG RES CENT AVIATION IND OF CHINA
- Filing Date
- 2023-04-11
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing centrifugal compressors suffer from severe tip leakage, resulting in low compressor efficiency and insufficient stability margin, making it difficult to meet the requirements of high overall system efficiency and complex intake modes.
Method used
The flow channel design employs a composite swept-down main blade and splitter blade configuration, combined with an expansion zone, air intake, and return port. The airflow circulation is controlled by valves to achieve a highly efficient and stable operating mode.
Benefits of technology
It improves the aerodynamic performance and stable operating range of the centrifugal compressor, enhances the efficiency and stability of the compression system, and reduces processing complexity and cost.
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Figure CN116357614B_ABST
Abstract
本发明公开了一种辅助动力装置离心压气机气动布局结构，属于辅助动力装置领域，离心压气机气动布局结构包括由轮毂和机匣构成的流道、复合弯掠主叶片和分流叶片、扩张区、第一回流口和第二回流口。通过在主叶片出口形成先扩后缩的气动布局结构，并在扩张通道的基础上构建双流路自循环机匣处理结构，形成了一种新颖的气动布局结构。当离心压气机工作在设计点附近时，利用扩张型通道的优势实现高效工作，当离心压气机工作在失速点时，打开阀门，利用自循环机匣处理实现稳定工作。
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