Hydrogen Tank Layout in Wheeled Loaders for Rear Visibility
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Solution Overview
Problem
Existing work machines, such as wheeled loaders, are not well-suited for the use of alternative energy sources like hydrogen, as they lack efficient and safe arrangements for hydrogen fuel systems.
Innovation Solution
The work machine is designed with a hydrogen fuel system located behind the cabin and above the engine room, providing a safe and accessible arrangement that maintains the external dimensions of the vehicle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the hydrogen fuel system is arranged behind the cabin and above the engine room, then safety is improved by separating from hot engine conditions, but the field of view of the machine operator to the rear is restricted
Solution Approach 1:
The hydrogen fuel system is positioned in the vertical dimension (above the engine room) rather than only in the horizontal plane, allowing safe separation from heat sources while managing spatial constraints. The engine room cover is narrowed horizontally to create viewing gaps, transforming the problem from a two-dimensional layout conflict to a three-dimensional solution involving vertical placement and horizontal modification.
Solution Approach 2:
The engine room cover is segmented or narrowed at specific locations to create viewing gaps, allowing the operator to see behind the machine without requiring complete removal of the cover structure. This segmentation provides targeted visibility while maintaining overall structural integrity and safety.
2Ease of operation
If the engine room cover is narrowed to improve operator visibility, then the field of view is improved, but the structural integrity and protection of the engine room may be compromised
Solution Approach 1:
The engine room cover is divided or narrowed at specific segments to create viewing gaps rather than completely opening or weakening the structure. This allows localized modifications for visibility while maintaining the overall strength and protective function of the engine room cover.
Solution Approach 2:
The engine room cover has different properties at different locations: most areas maintain full structural integrity and protection, while specific localized areas are narrowed to provide viewing gaps. This local modification approach preserves overall strength while enabling improved visibility where needed.
Data Source
AI summary
The present invention relates to a work machine, in particular a wheeled loader, having a cabin for the operator of the work machine and having an engine room arranged behind the cabin, wherein the work machine has a drive that is operable with hydrogen; and in that one or more tanks for the reception of hydrogen are present, with the tank or tanks being arranged in a hydrogen fuel system behind the cabin and above the engine room.