Fuel cell ship

US12552271B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-12552271-B2
Application numberUS-202217830095-A
CountryUS
Kind codeB2
Filing dateJun 1, 2022
Priority dateJun 2, 2021
Publication dateFeb 17, 2026
Grant dateFeb 17, 2026

How to read this patent

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  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

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Abstract

Official abstract text for this publication.

An exemplary fuel cell ship is a fuel cell ship for propelling a hull by using electric power supplied by a fuel cell that generates electric power through an electrochemical reaction of fuel, and includes at least one compartment including an emission source of the fuel, and a vent pipe through which the fuel in the compartment is released to outside of the hull. A release port of the vent pipe is located at a position higher than a cabin or a bridge provided on the hull.

First claim

Opening claim text (preview).

The invention claimed is: 1 . A fuel cell ship for propelling a hull by using electric power supplied by a fuel cell configured to generate electric power through an electrochemical reaction of fuel, the fuel cell ship comprising: at least one compartment including an emission source of the fuel, wherein the emission source includes the fuel cell and a fuel tank that stores the fuel, and wherein the at least one compartment includes: a fuel cell compartment in which the fuel cell is disposed, wherein the fuel cell compartment is sealed, a fuel tank compartment in which the fuel tank is disposed, wherein the fuel tank compartment is sealed, and a third compartment that is sealed; and a vent pipe through which the fuel in the at least one compartment is configured to be released to outside of the hull, wherein a release port of the vent pipe is located at a position higher than a cabin or a bridge provided on the hull, wherein each of the fuel cell compartment and the fuel tank compartment is in fluid communication with the vent pipe, wherein the fuel cell compartment is in fluid communication with the vent pipe via the third compartment, and wherein an upper portion of the third compartment is disposed above a deck of the hull and a lower portion of the third compartment is disposed below the deck of the hull. 2 . The fuel cell ship according to claim 1 , further comprising: a fan that drives air; a first pipe that fluidly connects the fuel cell compartment and a duct compartment such that the fan can drive air from the fuel cell compartment to the duct compartment via the first pipe; and wherein a fluid supply pipe is disposed within the first pipe such that the air flows within the first pipe and external to the fluid supply pipe. 3 . The fuel cell ship according to claim 1 , wherein a portion of a duct compartment is disposed within the cabin. 4 . The fuel cell ship according to claim 1 , wherein the third compartment includes an upper portion that is disposed above a deck of the hull and a lower portion that is disposed below the deck of the hull, and a portion of the fuel supply pipe that is disposed within a duct compartment is disposed within the lower portion of the third compartment.

Assignees

Inventors

Classifications

  • Fuel cells in motive systems, e.g. vehicle, ship, plane · CPC title

  • Reactant storage and supply, e.g. means for feeding, pipes · CPC title

  • the power plant using fuel cells for energy supply or accumulation, e.g. for buffering photovoltaic energy · CPC title

  • B63H21/17Primary

    by electric motor · CPC title

  • operating on the fuel supply · CPC title

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Frequently asked questions

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What does patent US12552271B2 cover?
An exemplary fuel cell ship is a fuel cell ship for propelling a hull by using electric power supplied by a fuel cell that generates electric power through an electrochemical reaction of fuel, and includes at least one compartment including an emission source of the fuel, and a vent pipe through which the fuel in the compartment is released to outside of the hull. A release port of the vent pip…
Who is the assignee on this patent?
Yanmar Holdings Co Ltd
What technology area does this patent fall under?
Primary CPC classification B63H21/17. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Feb 17 2026 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).