Variable pitch fan control system

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11668228
APP PUB NO 20210372316A1
SERIAL NO

17301948

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Importance

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Abstract

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A fan control system for a variable pitch fan of a work vehicle includes a first sensor that measures a parameter of a cooling system and a blade pitch module that adjust a pitch of a plurality of blades of the variable pitch fan to generate airflow in a first direction. A reversing module selectively commands a fan reversal that includes instructing the blade pitch module to temporarily adjust the pitch of the plurality of blades to generate airflow in a second direction. A first timer module, in response to the reversing module commanding the fan reversal, resets and increments a first timer and compares the first timer to a first threshold. A first reversal prevention module, in response to the first timer being less than the first threshold, prevents the reversing module from commanding a fan reversal by indicating that a first type of fan reversal is not permitted.

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Patent Owner(s)

Patent OwnerAddress
DEERE & COMPANYONE JOHN DEERE PLACE MOLINE IL 61265

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Clark, Scott N Bettendorf, US 12 5
Cruchelow, Darren J Ankeny, US 3 13
Haubenstricker, Jason E Davenport, US 3 2
Kharche, Nishant Pune, IN 2 2
Muttepawar, Manoj T Pune, IN 2 2

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