发明名称 |
Rotor assembly for homopolar generator |
摘要 |
A homoplanar generator (HPG) having the stator and an inner brush mechanism housed within the machine support structure utilizes a rotor separated into halves electrically insulated from each other, so as to fit around the stator and brush mechanism. A shaft is mounted in the support structure to carry the rotor. A first rotor half is thermally shrunk-fit onto the shaft, and the second rotor half is hydraulically expansion fit thereon. To hydraulically fit the second rotor on the shaft, a shaft is provided having a downward taper from its midpoint toward one end. The shaft also has a circumferential groove and a port therethrough from the end of the taper, for communicating high pressure oil from an external pump to the shaft-rotor interface. High-pressure seals on each side of the groove prevent leakage. The application of high-pressure oil expands the bore in the rotor half and shrinks the shaft diameter. A hydraulic ram then pushes the rotor half onto the tapered shaft, whereupon the pressure is released and the rotor half bore contracts against the shaft.
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申请公布号 |
US4800311(A) |
申请公布日期 |
1989.01.24 |
申请号 |
US19850751459 |
申请日期 |
1985.07.02 |
申请人 |
BOARD OF REGENTS |
发明人 |
WELDON, WILLIAM F.;GULLY, JOHN H.;PICHOT, MARK A. |
分类号 |
H02K31/02;H02K39/00;(IPC1-7):H02K31/02;H02K1/28 |
主分类号 |
H02K31/02 |
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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