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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.

Patent No.:

US 12584436 B1

PDFFull Text
Date of Patent:
Mar. 24, 2026

Filed:

Dec. 19, 2024

Engine cooling device

Applicant:

Toyota Jidosha Kabushiki Kaisha, Toyota, JP;

Inventors:

Shoichi Akiyama, Toyota, JP;

Takenori Saoda, Okazaki, JP;

Masazumi Yoshida, Kariya, JP;

Hirokazu Tanaka, Kariya, JP;

Assignee:

TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Hung Q Nguyen

Assistant Examiner:

James J Kim

Int. Cl.
CPC ...
F01P 7/00 (2006.01); F01N 3/02 (2006.01); F01P 3/02 (2006.01); F01P 3/12 (2006.01); F01P 5/10 (2006.01); F01P 7/16 (2006.01); F02M 26/22 (2016.01);
U.S. Cl.
CPC ...
F01P 7/16 (2013.01); F01N 3/0205 (2013.01); F01P 3/02 (2013.01); F01P 3/12 (2013.01); F01P 5/10 (2013.01); F02M 26/22 (2016.02); F01P 2003/024 (2013.01); F01P 2005/105 (2013.01); F01P 2025/08 (2013.01);
Abstract

An engine cooling device includes: a block lower portion that is a lower portion of a cylinder block; a block upper portion that is an upper portion of the cylinder block; a cylinder head of the engine; an exhaust cooling portion that cools an exhaust gas of the engine; a radiator that dissipates heat of a coolant; a first path that bypasses the radiator to cause the coolant to circulate through the block lower portion, the block upper portion, the cylinder head, and the exhaust cooling portion; a second path that bypasses the block lower portion to cause the coolant to circulate through the radiator, the block upper portion, the cylinder head, and the exhaust cooling portion; and a flow rate control mechanism that increases a flow rate of the coolant flowing through the second path with respect to a flow rate of the coolant flowing through the first path.

Find Patent Forward Citations

Akiyama, Shoichi. (2026). Engine cooling device (U.S. Patent No. 12584436). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12584436

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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