发明名称 |
UNINTERRUPTIBLE POWER SUPPLY USING A HIGH SPEED CYLINDER FLYWHEEL |
摘要 |
An uninterruptible power supply flywheel (120) includes a solid steel cylindrical flywheel (121) levitated for rotation about a vertical axis at tip speeds greater than 250 m/s on magnetic bearings (124, 125) in a low pressure housing (123). The flywheel inertia section operates with a maximum stress of greater than 60% and less than 80% of the material yield stress when spinning at fully charged operating speed. The flywheel is constructed from steel with an ultimate strength greater than 150 ksi and a toughness greater than 100ksi (in) &cir& 1/2. The flywheel is a solid steel cylinder that is hardened to centerline structure throughout the axial thickness of the large diameter portion that is greater than 40 % martensite. The flywheel is a solid steel cylinder that, in normal, fully charged operation, spins at a speed that would cause a fracture failure no sooner than one hundred thousand cycles between the fully charged normal operating speed and 10% of that normal operating speed. The flywheel is free of flaws with length greater than 1/8th inch at a diameter less than 20% of the outer diameter of the flywheel.
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申请公布号 |
WO0203523(A8) |
申请公布日期 |
2002.08.29 |
申请号 |
WO2001US20026 |
申请日期 |
2001.06.21 |
申请人 |
INDIGO ENERGY, INC.;GABRYS, CHRISTOPHER, W.;CAMPBELL, DAVID, R. |
发明人 |
GABRYS, CHRISTOPHER, W.;CAMPBELL, DAVID, R. |
分类号 |
F16F15/30;H02K7/02;(IPC1-7):H02K1/27;H02K5/24;H02K7/09;F16F15/305;F16C32/06 |
主分类号 |
F16F15/30 |
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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