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US Patent 7525228 Three-phase opposite rotating motor and fan

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Patent Citations Received
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US Patent 11987374 Systems and methods for driving fan blades of an engine
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Patent Inventor Names
Kun-Fu Chuang0
Shih-Ming Huang0
Shun-Chen Chang0
Wen-Shi Huang0
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Patent abstract

A three-phase opposite rotating motor of a fan comprises a stator having a three-phase coil set without a core, a first rotor and a second rotor. The number of the poles of the first rotor is unequal to the number of the poles of the second rotor. The ratio of the number of solenoids of the three-phase coil set and the number of the first poles of the first rotor is 3:4, and the ratio of the number of solenoids of the three-phase coil set and the number of the second poles of the second rotor is 3:2, to ensure the motor works normally in an opposite rotating operation.

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Official Website
https://pdfpiw.uspto.gov/.piw?Docid=075252280
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US Patent 07525228 Three-phase opposite rotating motor and fan US Patent 7525228 Three-phase opposite rotating motor and fan

Infobox
Patent Number
075252280
Patent Number
75252280
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Infobox
Is a
Patent
Patent
0
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
0
Patent Number
075252280
Date of Patent
April 28, 2009
0
Patent Application Number
116474740
Date Filed
December 29, 2006
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Official Website
https://pdfpiw.uspto.gov/.piw?Docid=075252280
Patent Primary Examiner
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Quyen P Leung
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https://pdfpiw.uspto.gov/.piw?Docid=07525228
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 US Patent 07525228 Three-phase opposite rotating motor and fan

Infobox
Is a
Patent
Patent
Patent jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent number
07525228
Date of patent
April 28, 2009
Patent application number
11647474
Date Filed
December 29, 2006
Patent primary examiner
‌
Quyen P Leung

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