Handling Machine Fuel Cell Casing for Hydrogen Safety

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Solution Overview

Problem

Existing handling equipment with fuel cell systems lacks sufficient protection against knocks and hydrogen leaks, posing safety risks for both the equipment and the driver.

Innovation Solution

The equipment design includes a casing that houses the fuel cell and hydrogen tank on one side of the chassis, opposite to the driver's cab, providing protection against knocks and localizing hydrogen leaks within the casing, thus enhancing safety and acting as a counterweight.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the fuel cell system is positioned on the chassis without a protective casing, then the equipment layout is simpler and more accessible, but the system lacks protection against knocks and hydrogen leaks pose a safety risk to the driver

Engineering Contradiction:
Improvesafety protectionVSAvoidcasing structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent divides the handling equipment into distinct functional zones by positioning the driver's cab on one side of the chassis and the fuel cell system with protective casing on the opposite side. This segmentation isolates hazardous components from the driver, localizing potential hydrogen leaks to a confined area away from the cab while maintaining overall system functionality.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The protective casing serves as an intermediary barrier between the fuel cell system and the external environment. This casing structure physically isolates the hydrogen storage and fuel cell components, preventing direct exposure to knocks and containing any potential hydrogen leaks within the enclosed space, thereby protecting both the system and the driver.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If the fuel cell and hydrogen tank are positioned close to the driver's cab for ease of access, then maintenance is simpler, but the driver is exposed to hydrogen leak risks

Engineering Contradiction:
Improvemaintenance accessVSAvoidhydrogen leak exposure
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent segments the equipment into separate functional zones with the driver's cab positioned on one side and the fuel cell system in a protected casing on the opposite side. This spatial segmentation ensures that maintenance personnel can access the fuel cell system from the outside without the driver being exposed to potential hydrogen leaks, while the driver remains in a safe zone.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The hazardous fuel cell system is extracted from the driver's immediate environment and placed in a dedicated protective casing on the opposite side of the chassis. This extraction removes the source of potential harm from proximity to the driver, allowing maintenance operations to be performed on the isolated system without exposing the driver to hydrogen leak risks.

Inventive Principle:
Principle #2Taking out (Extraction)

3Temperature

If the fuel cell system is exposed without a casing, then heat dissipation is more effective, but the system is vulnerable to knocks and physical damage

Engineering Contradiction:
Improveheat dissipationVSAvoidphysical protection
Core Design Contradiction:
TemperatureVSStrength

Solution Approach 1:

The patent employs a protective casing that encloses the fuel cell system while maintaining appropriate thermal management. The casing structure provides physical protection against knocks and damage, while its design allows for heat dissipation through controlled ventilation or thermal conduction pathways, balancing protection requirements with thermal management needs.

Inventive Principle:
Principle #30Flexible shells and thin films

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This configuration effectively protects the fuel cell and hydrogen tank from damage, localizes leaks to prevent driver exposure, and contributes to the equipment's balance, improving overall safety and operational reliability.

Implementation Method 1

a fuel cell which is configured to generate electrical energy intended to power the electric motor

Methodology Applied
Scientific EffectFuel cell electrochemical reaction: Fuel Cell

Data Source

PatentUS20240425336A1Handling machine including a fuel cell and a tank for holding hydrogen
Publication Date: 2024.12.26 MANITOU BF SA
  • US20240425336A1 patent drawing
  • US20240425336A1 patent drawing
  • US20240425336A1 patent drawing

AI summary

The invention relates to handling equipment (1) comprising:a chassis (2) having a median longitudinal axis (X);a load-handling device (3) which is mounted such as to be able to move on the chassis (2);an electric motor (11, 12, 13) which is configured to move the handling equipment (1) or to actuate the load-handling device (3);a fuel cell (17) which is configured to generate electrical energy intended to power the electric motor (11, 12, 13);a tank (16, 32) intended to contain hydrogen and connected to the fuel cell (17) in order to supply same with hydrogen;a driver's cab (22) which is fixed to the chassis (2) and is positioned on a first side of the chassis (2) with respect to the median longitudinal axis (X) of the chassis (2);a casing (23) which is fixed to the chassis (2) and is positioned on a second side of the chassis (2) which is the opposite to the first side, with respect to the median longitudinal axis (X) of the chassis (2);of the fuel cell (17) and the tank (16, 32) at least one being housed inside said casing (23).