IP Library › Granted Patent US 12,552,271
Granted Patent B2
US 12,552,271 · App. 17/830,095 · Granted Feb 17, 2026

Fuel cell ship

Inventors: Manabu Shinagawa (Osaka, JP); Takehiro Maruyama (Osaka, JP); Yasuyoshi Yamaguchi (Osaka, JP); Takuya Hiraiwa (Osaka, JP); Yukihiko Kimura (Kunisaki, JP)
Assignee: YANMAR HOLDINGS CO., LTD.
B60L50/71B60R25/042B63H21/17H01M8/04201B63H2021/003H01M2250/20
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Quick Facts
Patent No.
US 12,552,271
App. No.
17/830,095
Granted
Feb 17, 2026
Kind
B2
Abstract

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.

Claims (16)

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.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 1, 2022
From: SHINAGAWA, MANABU; MARUYAMA, TAKEHIRO; YAMAGUCHI, YASUYOSHI; HIRAIWA, TAKUYA; KIMURA, YUKIHIKO
To: YANMAR HOLDINGS CO., LTD.
Reel/Frame 060076/0359 →
Priority Claims (1)
JP 2021-092707 · Jun 2, 2021 · national
Continuity (1)
Related Publication 20220388405A1 · Dec 8, 2022
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