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:
Feb. 17, 2026

Filed:

Dec. 13, 2023
Applicant:

Toyota Jidosha Kabushiki Kaisha, Toyota, JP;

Inventor:

Nobuhiko Satake, Toyota, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M 65/00 (2006.01); F02D 41/22 (2006.01);
U.S. Cl.
CPC ...
F02M 65/006 (2013.01); F02D 2041/225 (2013.01); F02M 2700/05 (2013.01);
Abstract

A first pressure sensor is disposed in a first fuel system between a first shutoff valve and a second shutoff valve. A second pressure sensor is disposed in a second fuel system between the second shutoff valve and a fuel injection valve. A determination process determines a leakage anomaly in the first fuel system or the second fuel system based on a first magnitude relationship or a second magnitude relationship. The first magnitude relationship is a relationship between a detection value of the first pressure sensor in a state in which the first fuel system is filled with gaseous fuel and a first threshold value. The second magnitude relationship is a relationship between a detection value of the second pressure sensor in a state in which the second fuel system is filled with gaseous fuel and a second threshold value.


Find Patent Forward Citations

Satake, Nobuhiko. (2026). Fuel system leakage anomaly detection device and fuel system leakage anomaly detection method for internal combustion engine (U.S. Patent No. 12553408). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12553408

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

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