| Externally Pressurized Gas Journal Bearings in Power MEMS of Quasi Gas Power Cycle |
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| 引用本文： | WANG Jing,ZHANG Li,DENG Da-qiang,CHEN Wei-jun,XU Zong-jun. Externally Pressurized Gas Journal Bearings in Power MEMS of Quasi Gas Power Cycle[J]. 保鲜与加工, 2007, 0(7): 18 |
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| 作者姓名： | WANG Jing ZHANG Li DENG Da-qiang CHEN Wei-jun XU Zong-jun |
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| 作者单位： | 1. State Key Laboratory of Mechanical Transmission;2. College of Mechanical Engineering, Chongqing University, Chongqing 400030, China |
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| 摘 要： | An original thermodynamic idea for Power MEMS, which is called as quasi gas power cycle, is proposed to further intensify energy density and simplify structure of Power MEMS. Because gas supply with preset high pressure is set up in the Power MEMS engine of quasi gas power cycle, it is convenient for the Power MEMS engine to employ externally pressurized gas bearings to improve the performance of its bearings. Therefore mal design philosophy and structural type of the hyrostatic journal bearing as well as the hyrostatic thrust bearing in the Power MEMS engine are investigated, considering the limiting factor on meso scale. Then the structural and operational parameters are analyzed, and the optimal designs of typical externally pressurized gas bearings are put forward. Moreover the feasibility of the externally pressurized gas bearings applied to the Power MEMS engine is further verified by the calculation of load-carrying capacity of the hyrostatic gas bearings.
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| 关 键 词： | Power MEMS micro heat engine externally pressurized journal gas- bearings externally pressurized thrust gas- bearings load- carrying capacity |
| 修稿时间： | 2007-04-28 |
Externally Pressurized Gas Journal Bearings in Power MEMS of Quasi Gas Power Cycle |
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| WANG Jing,ZHANG Li,DENG Da-qiang,CHEN Wei-jun,XU Zong-jun. Externally Pressurized Gas Journal Bearings in Power MEMS of Quasi Gas Power Cycle[J]. Storage & Process, 2007, 0(7): 18 |
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| Authors: | WANG Jing ZHANG Li DENG Da-qiang CHEN Wei-jun XU Zong-jun |
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| Affiliation: | 1. State Key Laboratory of Mechanical Transmission;2. College of Mechanical Engineering, Chongqing University, Chongqing 400030, China |
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| Abstract: | An original thermodynamic idea for Power MEMS, which is called as quasi gas power cycle, is proposed to further intensify energy density and simplify structure of Power MEMS. Because gas supply with preset high pressure is set up in the Power MEMS engine of quasi gas power cycle, it is convenient for the Power MEMS engine to employ externally pressurized gas bearings to improve the performance of its bearings. Therefore mal design philosophy and structural type of the hyrostatic journal bearing as well as the hyrostatic thrust bearing in the Power MEMS engine are investigated, considering the limiting factor on meso scale. Then the structural and operational parameters are analyzed, and the optimal designs of typical externally pressurized gas bearings are put forward. Moreover the feasibility of the externally pressurized gas bearings applied to the Power MEMS engine is further verified by the calculation of load-carrying capacity of the hyrostatic gas bearings. |
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| Keywords: | Power MEMS micro heat engine externally pressurized journal gas- bearings externally pressurized thrust gas- bearings load- carrying capacity |
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