High pressure oil-free miniature air compressor has an irreplaceable role in some high demand areas such as cooling, scuba diving and pneumatic catapult due to its remarkable advantages such as compacted size, lightened weight and clean output gas. As the important sealing component in the high pressure oil-free miniature air compressor, piston rings hold the properties such as tiny diameter (less than 10mm), high sealing pressure (up to 410 bar) and high surrounding temperature (up to 500K), which make them distinctive from conventional piston rings. A mathematical model was established to simulate the pressure distribution of the compressor chamber, as well as the gap between the sealing rings. Sensitive parameters were considered to investigate their effects on the sealing performance such as the number and the cut size of the piston rings, the suction and discharge pressure and the rotary speed. The mathematical model was verified by comparing to published experimental research work. These work help to reveal the severe non-uniformity of the pressure distribution of different chambers, which were suggested be the primary cause of the premature failure of the sealing rings, thus improving the sealing performance and the service life of the air compressor.
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ASME/BATH 2017 Symposium on Fluid Power and Motion Control
October 16–19, 2017
Sarasota, Forida, USA
Conference Sponsors:
- Fluid Power Systems and Technology Division
ISBN:
978-0-7918-5833-2
PROCEEDINGS PAPER
Research on Sealing Performance in High Pressure Oil-Free Miniature Air Compressor Available to Purchase
Yipan Deng,
Yipan Deng
Huazhong University of Science and Technology, Wuhan, China
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Yinshui Liu,
Yinshui Liu
Huazhong University of Science and Technology, Wuhan, China
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Fan Li,
Fan Li
Huazhong University of Science and Technology, Wuhan, China
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Pengyun Tian,
Pengyun Tian
Huazhong University of Science and Technology, Wuhan, China
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Na Miao
Na Miao
Huazhong University of Science and Technology, Wuhan, China
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Yipan Deng
Huazhong University of Science and Technology, Wuhan, China
Yinshui Liu
Huazhong University of Science and Technology, Wuhan, China
Fan Li
Huazhong University of Science and Technology, Wuhan, China
Pengyun Tian
Huazhong University of Science and Technology, Wuhan, China
Na Miao
Huazhong University of Science and Technology, Wuhan, China
Paper No:
FPMC2017-4248, V001T01A023; 7 pages
Published Online:
December 4, 2017
Citation
Deng, Y, Liu, Y, Li, F, Tian, P, & Miao, N. "Research on Sealing Performance in High Pressure Oil-Free Miniature Air Compressor." Proceedings of the ASME/BATH 2017 Symposium on Fluid Power and Motion Control. ASME/BATH 2017 Symposium on Fluid Power and Motion Control. Sarasota, Forida, USA. October 16–19, 2017. V001T01A023. ASME. https://doi.org/10.1115/FPMC2017-4248
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