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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 12767314 B1

PDFFull Text
Date of Patent:
Oct. 20, 2026

Filed:

Apr. 04, 2023

Propulsion system arrangement and method having fluid circuits for cooling and lubrication of motor and clutch

Applicant:

Caterpillar Inc., Peoria, IL (US);

Inventors:

Matthew E. Giannis, Lisle, IL (US);

Joshua W. Dorothy, Dunlap, IL (US);

Michael J. Barngrover, Brimfield, IL (US);

John M. Seipold, Peoria, IL (US);

Mark Allen Garety, Metamora, IL (US);

Assignee:

Caterpillar Inc., Peoria, IL (US);

Attorney:

Brannon Sowers & Cracraft

Primary Examiner:

Dominick L Plakkoottam

Assistant Examiner:

Geoffrey S Lee

Int. Cl.
CPC ...
B63H 23/12 (2006.01); B63H 21/14 (2006.01); B63H 21/38 (2006.01); B63H 23/30 (2006.01);
U.S. Cl.
CPC ...
B63H 23/12 (2013.01); B63H 21/14 (2013.01); B63H 21/383 (2013.01); B63H 21/386 (2013.01); B63H 23/30 (2013.01); B63H 2023/305 (2013.01);
Abstract

A propulsion system includes an electric motor assembly having an electric motor, a driveshaft, and a disconnect clutch. The disconnect clutch is structured to couple the driveshaft to an engine output shaft. The propulsion system further includes a fluid system having a cooling and lubrication fluid circuit fluidly connected to a first pump, and a clutch actuation fluid circuit fluidly connected to a second pump. The cooling and lubrication fluid circuit is fluidly connected to the clutch actuation fluid circuit via at least one of respective pump outgoing conduits from the first pump and the second pump or respective pump supply conduits to the first pump and the second pump. Related operating methodology is also disclosed.

Find Patent Forward Citations

Giannis, Matthew. (2026). Propulsion system arrangement and method having fluid circuits for cooling and lubrication of motor and clutch (U.S. Patent No. 12767314). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12767314

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

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