发明名称 |
MOTOR WITH AERODYNAMIC PRESSURE BEARING MECHANISM |
摘要 |
In a gas dynamic pressure bearing mechanism (1) for smoothing rotary motion of a shaft (10) by feeding gas to the bearing clearance between the shaft (10) and a fixed sleeve (20) for supporting the shaft (10) through a herring bone groove (10a), the herring bone groove (10a) is provided in the shaft (10) such that pressure distribution generated in the bearing clearance moves at a high speed. The herring bone groove (10a) consists of N grooves such that N minimal pressure values appearing alternately with maximal pressure values at the positions where the maximal pressure values of dynamic pressure variation appear in the bearing clearance when the shaft (10) rotates have such an interval as it becomes lower than the condensation pressure value.
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申请公布号 |
US2010166348(A1) |
申请公布日期 |
2010.07.01 |
申请号 |
US20080451665 |
申请日期 |
2008.05.21 |
申请人 |
NIDEC COPAL ELECTRONICS CORPORATION |
发明人 |
TAKAHASHI AKIYOSHI;UCHIDA TOSHIYA |
分类号 |
F16C32/06 |
主分类号 |
F16C32/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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