Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1998-07-14
2000-11-14
Ramirez, Nestor
Electrical generator or motor structure
Dynamoelectric
Rotary
384109, 384113, F16C 1700
Patent
active
06147424&
ABSTRACT:
A gas dynamic pressure bearing apparatus comprises a fixed shaft, a bearing member which is positioned opposite from the fixed shaft and at least a radial gas dynamic pressure bearing portion and a thrust gas dynamic pressure bearing portion which are positioned in a space between the fixed shaft and the bearing member. Dynamic pressure generating means are included for pressurizing gas in the radial gas dynamic pressure bearing portion and the thrust gas dynamic pressure bearing portion such that dynamic pressure action is generated. The bearing member is rotatably supported in relation to the fixed shaft by means of the pressurizing action such that rotational driving is performed by a predetermined motor. The radial gas dynamic pressure bearing portion and the thrust gas dynamic pressure bearing portion are structured such that gas is sealed from the space around the motor by a space sealing means and that gas flows from one side to other. The flowing gas is circulated between the radial gas dynamic pressure bearing portion and the thrust gas dynamic pressure bearing portion through a gas circulation path. A gas passage is formed on the fixed shaft such that the gas circulation path is connected to the outer end of the fixed shaft. Dust collecting means is formed in one of the gas circulation and the gas passage.
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Japanese Abstracts 1-288611, 2-011918 & 2-113113.
Gomyo Masato
Hayakawa Masamichi
Kanebako Hideki
Miura Kazushi
Mullins Burt
Ramirez Nestor
Sankyo Seiki Mfg. Co. Ltd.
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