Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2008-12-29
2010-06-22
Lam, Thanh (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
C310S216137, C310S216055
Reexamination Certificate
active
07741750
ABSTRACT:
An induction motor embodiment includes a stator defining a stator bore, the stator including a stator yoke having a stator yoke thickness and a plurality of stator teeth, the teeth having a common length, with each of the stator teeth including a stator tooth center portion that extends from a stator tooth bottom portion proximal the yoke to a stator tooth tip portion, with adjacent stator teeth defining a stator slot between them, each stator slot having a stator slot bottom that extends along a stator slot bottom length. In the embodiment, the center portion has a stator tooth width that is less than or equal to one half the stator slot bottom length. In the embodiment, the stator tooth width is smaller than a stator slot opening width distance. In the embodiment, a ratio of stator yoke thickness to stator tooth width is at least 5:1. A rotor is rotably mounted in the stator.
REFERENCES:
patent: 5753991 (1998-05-01), Couture et al.
patent: 5793139 (1998-08-01), Nashiki
patent: 6034460 (2000-03-01), Tajima et al.
patent: 6133663 (2000-10-01), Hoemann
patent: 6144132 (2000-11-01), Nashiki
patent: 6218760 (2001-04-01), Sakuragi et al.
patent: 6747387 (2004-06-01), Fujinaka
patent: 6750583 (2004-06-01), Fujinaka
patent: 7098567 (2006-08-01), Ionel et al.
patent: 7116029 (2006-10-01), Kerlin
patent: 7141905 (2006-11-01), Vollmer
patent: 7247967 (2007-07-01), Ionel et al.
patent: 7466055 (2008-12-01), Toide et al.
Lam Thanh
Tesla Motors, Inc.
LandOfFree
Induction motor with improved torque density does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Induction motor with improved torque density, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Induction motor with improved torque density will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4210543