Failure diagnosis system for cooling fans, a failure diagnosis device for cooling fans, a failure diagnosis method for cooling fans, a computer readable medium therefor and a cooling device

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United States of America Patent

PATENT NO 8190396
APP PUB NO 20100076728A1
SERIAL NO

12551879

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Abstract

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The failure diagnosis system of cooling fans of the present invention includes a first cooling device, a second cooling device and a control device. The first cooling device has a first cooling fan, and the second cooling device has a second cooling fan. The control device executes a first failure diagnosis which checks failure of the second cooling fan based on the rotation rate of the second cooling fan at the time at which the rotation rate of the first cooling fan is reduced.

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Patent Owner(s)

  • NEC CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Yanao, Takio Tokyo, JP 1 13

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