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.:
Date of Patent:
Nov. 03, 2026
Filed:
Jul. 15, 2025
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
A fuel supply system includes a hydrogen engine, a fuel tank, a hydrogen pipe, and a first shut-off valve and a second shut-off valve that are shut-off valves for shutting off hydrogen gas. A failure determination device closes a shut-off valve when an operation that request to stop the hydrogen engine is performed, and executes a failure determination routine that monitors the decrease rate of pressure of hydrogen gas at the downstream side of the shut-off valve while keeping the hydrogen engine running, and determines that the shut-off valve is not properly closed when the decrease rate is slow. When an operation that requests to run the hydrogen engine is performed during the execution of the failure determination routine, the failure determination device opens the shut-off valve and stops the failure determination routine while keeping the hydrogen engine running.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile