Fan drive system and management system

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10473127
APP PUB NO 20190093684A1
SERIAL NO

15526821

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Abstract

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A fan drive system includes a hydraulic pump, a hydraulic motor that rotates a fan on the basis of hydraulic oil supplied from the hydraulic pump, a data acquisition unit that acquires an actual fan speed of the fan, a target amount determination unit that determines a target fan speed of the fan on the basis of a state of an object to be cooled of the fan, and an estimating unit that estimates a state of the hydraulic pump or a state of the hydraulic motor on the basis of a change of a feedback amount that indicates a difference between the target fan speed and the actual fan speed.

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Patent Owner(s)

Patent OwnerAddress
KOMATSU LTD1-2-20 KAIGAN MINATO-KU TOKYO 1058316 ?1058316

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hirano, Masahiro Tokyo, JP 86 20923
Ogasawara, Kenichi Tokyo, JP 8 34
Ohshiro, Mitsuru Tokyo, JP 3 11

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