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. 11, 2025
Filed:
Feb. 01, 2023
GM Global Technology Operations Llc, Detroit, MI (US);
Joseph Hahn, White Lake Township, MI (US);
Scott May, Daytona Beach, FL (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A multi-function fuel delivery system, a method of providing fuel delivery and a noise-attenuating and fuel injector housing device address a root cause of audible noise in a fuel delivery system by placing a sufficiently sized volume directly at the inlet of pulsed-type hydrogen injectors, thereby eliminating pressure pulsation and audible noise created by pressure pulsations. Combining a noise-attenuating function and a fuel supply rail capable of supplying hydrogen to multiple injectors, with both performed within a single volume, addresses space-related and cost-related challenges as well as other challenges of the fuel delivery system. The multi-function fuel delivery system includes a hydrogen (H2) heat exchanger, an H2 fuel manifold, and an upper fuel rail (UFR) that receives H2 that is noise-attenuated by the H2 fuel manifold and provides the noise-attenuated H2 simultaneously to a plurality of injectors.