Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1994-04-26
1996-07-30
Laballe, Clayton E.
Electrical generator or motor structure
Dynamoelectric
Rotary
310905, 384114, H02K 708, H02K 709, F16C 3206
Patent
active
055414621
ABSTRACT:
A rotary body bearing apparatus has a bearing supporting member, a radial bearing member, a bearing chamber formed in the bearing supporting member for holding the radial bearing member, a rotative shaft supported rotatively by the radial bearing member, and lubricating oil filling a bearing clearance between the rotative shaft and the radial bearing member. An air bubble restraint means restrains the occurrence of air bubbles generated in the lubricating oil by the rotation of the rotative shaft. Even when the rotative shaft rotates at the high speed of rotation, by the provision of the air bubble occurrence restraint means, the occurrence of air bubbles generated in the lubricating oil can be restrained, high accuracy rotation can be maintained and a rotation number fluctuation of the rotary body can be reduced.
REFERENCES:
patent: 4416555 (1983-11-01), Tomioka et al.
patent: 4694213 (1987-09-01), Gowda et al.
patent: 4938611 (1990-07-01), Nii et al.
patent: 5108198 (1992-04-01), Nii et al.
patent: 5325006 (1994-06-01), Uno et al.
patent: 5417507 (1995-05-01), Uno et al.
Akashi Sueo
Hashimoto Ichiro
Nakajima Takeshi
Nii Katsutoshi
Hitachi , Ltd.
LaBalle Clayton E.
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