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Performance study of oil-free miniature scroll air compressor with asymmetric working chambers
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Yufeng ZHANG1, Yuxuan WANG1, Yuanyang ZHAO1, Liansheng LI1, Hongbin HE2
Fluid Machinery | 2025, 53(1) : 59 - 67
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Fluid Machinery | 2025, 53(1): 59-67
Performance study of oil-free miniature scroll air compressor with asymmetric working chambers
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Yufeng ZHANG1, Yuxuan WANG1, Yuanyang ZHAO1, Liansheng LI1, Hongbin HE2
Affiliations
  • 1College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, China
  • 2Hefei Bolin New Material Co., Ltd., Hefei 200012, China
Published: 2025-01-30 doi: 10.3969/j.issn.1005-0329.2025.01.008
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For the problem of serious exhaust loss of miniature oil-free scroll air compressor with asymmetric working chambers, the design method of the exhaust port was given according to the inner volume ratio. The effects of the internal flow field characteristics and performance variations of the scroll compressor with asymmetrical chambers under different clearances and altitude were analyzed by CFD method and verified experimentally. The results show that the new exhaust port can reduce the amount of over-compression by 17.85% and reduce exhaust losses. When the radial clearance increases from 10 μm to 30 μm, the compressor volumetric efficiency decreases from 89.68% to 16.02% and the isentropic efficiency decreases from 78.69% to 32.84%. Experimental results on main performance such as flow and power etc. show that the maximum error between the experimental mass flow rate and the simulation result is 9.09%, and the maximum error of the power at an exhaust pressure of 0.26 MPa is 8.90%. The relevant results are of reference significance for reducing the exhaust loss of scroll compressors with asymmetric working chambers.

scroll air compressor with asymmetric working chambers  /  exhaust port  /  performance simulation  /  variable operating conditions  /  experimental verification
张羽丰, 王宇轩, 赵远扬, 李连生, 何鸿斌. 非对称腔微型无油涡旋空压机性能研究. 流体机械, 2025 , 53 (1) : 59 -67 . DOI: 10.3969/j.issn.1005-0329.2025.01.008
Yufeng ZHANG, Yuxuan WANG, Yuanyang ZHAO, Liansheng LI, Hongbin HE. Performance study of oil-free miniature scroll air compressor with asymmetric working chambers[J]. Fluid Machinery, 2025 , 53 (1) : 59 -67 . DOI: 10.3969/j.issn.1005-0329.2025.01.008
Appendix
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Year 2025 volume 53 Issue 1
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Article Info
doi: 10.3969/j.issn.1005-0329.2025.01.008
  • Receive Date：2024-05-20
  • Online Date：2026-10-15
  • Published：2025-01-30
Article Data
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History
  • Received：2024-05-20
  • Revised：2024-08-02
Affiliations
    1College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, China
    2Hefei Bolin New Material Co., Ltd., Hefei 200012, China
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https://castjournals.cast.org.cn/joweb/ltjx/EN/10.3969/j.issn.1005-0329.2025.01.008
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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