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:
May. 05, 2025
Caterpillar Inc., Peoria, IL (US);
Bhaben Kalita, Peoria, IL (US);
Isaac E. Fox, Houston, TX (US);
Prasanna M. Ballal, Dunlap, IL (US);
Manuj Dindgur, Peoria, IL (US);
Arvind Sivasubramanian, Chicago, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
An engine system includes an engine configured to operate with a gaseous fuel, an intake manifold configured to provide intake air to the engine, and a gaseous fuel pathway including a gaseous fuel rail, a gaseous fuel shutoff valve, and a gaseous fuel check valve. The engine system also includes a gaseous fuel rail pressure sensor, an intake manifold pressure sensor, and a controller configured to: receive a measured gaseous fuel rail pressure from the gaseous fuel rail pressure sensor, receive a measured intake manifold pressure from the intake manifold pressure sensor, and based on the measured gaseous fuel rail pressure, the measured intake manifold pressure, and an expected pressure value, output an indication of a failure of the gaseous fuel shutoff valve or the gaseous fuel check valve.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile