Stationary fuel cell system

The vertical stacking of fuel cell modules with inverted and upright configurations in the fuel cell system addresses the issue of deteriorated workability by centralizing auxiliary equipment and reducing pipe lengths, enhancing maintenance efficiency and space utilization.

JP7868687B2Active Publication Date: 2026-06-02NISSAN MOTOR CO LTD
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
NISSAN MOTOR CO LTD
Filing Date
2022-10-05
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

The existing stationary fuel cell systems with vertically stacked cylindrical casings require operators to stretch or bend down during maintenance and inspection, leading to deteriorated workability due to the arrangement of pipes at different heights, which complicates the working posture.

Method used

A fuel cell system design with two power generation modules stacked vertically, where one module is upright and the other is inverted, with the second fuel cell stack having a smaller vertical dimension, and the piping module positioned between them, allowing for centralized placement of auxiliary equipment structures and reduced pipe lengths, thus minimizing the need for significant posture changes during maintenance.

Benefits of technology

This configuration reduces the physical effort required during maintenance and inspection, improves work efficiency by minimizing posture changes, and optimizes space utilization, while maintaining flexibility in pipe routing and reducing manufacturing costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

Provided is a stationary fuel cell system in which two power generation modules are layered and disposed in the vertical direction, said power generation modules each being provided with an auxiliary machine structure that includes an auxiliary machine for exchanging gas with a fuel cell stack, a first fuel cell stack that is connected to one surface of the auxiliary machine structure in the vertical direction, and a second fuel cell stack that is connected to the other surface of the auxiliary machine structure in the vertical direction and that has a smaller dimension in the vertical direction than the first fuel cell stack, wherein: the second fuel cell stack of the upper-side power generation module is connected to the lower surface of the auxiliary machine structure of the upper-side power generation module; and the second fuel cell stack of the lower-side power generation module is connected to the upper surface of the auxiliary machine structure of the lower-side power generation module.
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