Brushless motor

Details Brushless motor Brushless motor

2006-02-21

2006-02-21

Waks, Joseph (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S090000, C310S156260

Reexamination Certificate

active

07002272

ABSTRACT:
A lubricating oil scattering prevention arrangement provided near a bearing whereby the outward scattering of lubricating oil that leaked from between a stator and rotor due to tilting, impact or the like is prevented. A plate-shaped rotor case30is provided with a descending portion31, a step portion32and an outer peripheral portion33. A magnet4is provided on the inner side of the outer peripheral portion33and a lubricating oil absorption member is provided between the magnet4and the step portion32. Because an outer peripheral portion of the lubricating oil absorption member is compressed by the magnet4upper surface portion and the step portion32and thus attached, the lubricating oil absorption member absorbs lubricating oil leaked from the bearing part and the compressed portion prevents the lubricating oil from leaking outwardly.

REFERENCES:
patent: 4174484 (1979-11-01), Schmider
patent: 5821646 (1998-10-01), Chuta et al.
patent: 5880545 (1999-03-01), Takemura et al.
patent: 6710488 (2004-03-01), Kronenberg et al.
patent: 6876114 (2005-04-01), Knotts et al.

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