The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 15, 2020

Filed:

Jun. 21, 2018
Applicant:

Kubota Corporation, Osaka, JP;

Inventors:

Ryosuke Kinugawa, Sakai, JP;

Nozomu Minagawa, Sakai, JP;

Hiroshi Tatsumi, Sakai, JP;

Keisuke Miura, Sakai, JP;

Makoto Noguchi, Sakai, JP;

Assignee:

KUBOTA CORPORATION, Osaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D 35/02 (2006.01); F01P 5/04 (2006.01); F04D 27/00 (2006.01);
U.S. Cl.
CPC ...
F01P 5/04 (2013.01); F04D 27/004 (2013.01); F16D 35/028 (2013.01); F01P 2025/36 (2013.01); F01P 2031/20 (2013.01); F05B 2260/406 (2013.01); F05B 2270/706 (2013.01); F16D 35/024 (2013.01);
Abstract

A cooling control system for a working machine includes a fan, a housing to which the fan is attached, a prime mover having an output shall, a rotor to be rotated by a rotating power of the output shaft and to be rotated with the housing by a fluid introduced to a gap formed between the housing and the rotor, a fluid setting circuit to set an introduction amount of the fluid introduced to the gap, and a control device to control the fluid setting circuit to control the fan. The control device includes a setting circuit to set a target rotation speed of the fan based on a responsiveness of an actual rotation speed of the fan at time of changing of the target rotation speed of the fan.


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