Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1998-11-06
2000-10-17
Ponomarenko, Nicholas
Electrical generator or motor structure
Dynamoelectric
Rotary
310 43, 310 89, 310 85, 508581, 508552, 384476, 384627, 2505151, 376287, 528327, H02K 508, H02K 330, H02K 515, H02K 708
Patent
active
061336610
ABSTRACT:
The invention relates to a rotating electric machine including a coil of a wire having thereon an insulating coating comprising a polybenzimidazole. This rotating electric machine is stably maintained for a long time in dielectric strength even under a highly radioactive environment, due to the use of the special insulating coating. With this, the rotating electric machine can be driven stably for a long time. The invention further relates to another rotating electric machine including (a) a rotor having a rotating shaft; (b) a bearing for supporting the rotating shaft; and (c) a grease applied to the bearing. This grease contains (1) a polyphenyl ether having at least three aromatic rings in the molecule and (2) a urea. The rotor of this rotating electric machine is stably supported in the bearing for a long time even under a highly radioactive environment, due to the use of the special grease. Thus, this rotating electric machine can also be rotated stably for a long time.
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Ema Yoshiyuki
Funabashi Kazuo
Hoko Masaaki
Itano Fumihiro
Ito Isao
Kabushiki Kaisha Meidensha
Kandenko Co., Ltd.
Ponomarenko Nicholas
Sumitomo Wiring Systems Ltd.
Tamai Karl Eizo
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