发明名称 |
Direct current motor for operation at elevated temperatures in a hostile environment |
摘要 |
A permanent magnet motor for operation at elevated temperatures wherein the magnets are clamped to the motor shaft by means of high temperature plastic bushings. The bushings have a coefficient of thermal expansion that exceeds the coefficient of thermal expansion of the motor shaft.
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申请公布号 |
US5142180(A) |
申请公布日期 |
1992.08.25 |
申请号 |
US19900598564 |
申请日期 |
1990.10.19 |
申请人 |
SHELL OIL COMPANY |
发明人 |
MOORE, BOYD B.;WICKS, III, MOYE |
分类号 |
E21B47/01;H02K1/16;H02K1/27;H02K5/132;H02K29/14 |
主分类号 |
E21B47/01 |
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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