Trough-Shaped Inner Floor for Rail Vehicle Water Leakage Management
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Solution Overview
Problem
Leakage water from water-carrying modules in rail vehicle carriages can penetrate into the shell, leading to corrosion, which existing designs fail to adequately prevent.
Innovation Solution
A trough-shaped inner floor with a circumferential profile and watertight coating, combined with drip trays and drains, to contain and direct leakage water away from the shell, ensuring watertight seals and effective liquid management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a wooden floor is used in rail vehicle carriages, then the floor provides structural support and surface area, but leakage water from water-carrying modules can penetrate into the shell causing corrosion
Solution Approach 1:
The floor is divided into two functional parts: a load-bearing structural floor and a separate trough-shaped collection system. This segmentation allows the structural floor to maintain its support function while the collection system independently handles water containment, preventing water penetration into the shell and thus eliminating corrosion risks without compromising structural integrity.
Solution Approach 2:
The trough-shaped collection system acts as an intermediary between the water-carrying modules and the shell. It intercepts leakage water before it can reach the shell, serving as a protective barrier that prevents direct contact between water and the shell structure, thereby preventing corrosion while allowing the wooden floor to maintain its structural role.
2Reliability
If a trough-shaped inner floor is implemented to contain water, then water containment is improved, but the structural complexity of the floor increases
Solution Approach 1:
By separating the water containment function into an independent trough-shaped collection system that can be installed on top of the existing structural floor, the design avoids complex integrated structures. The collection system is a separate module with its own walls and drainage, simplifying the overall construction while maintaining effective water containment.
Solution Approach 2:
The trough-shaped collection system utilizes the vertical dimension by extending walls upward from the floor surface to form containment chambers. This vertical extension creates effective water containment without requiring complex horizontal structures, as the walls rise to intercept water before it can spread across the floor surface.
3Reliability
If the trough-shaped inner floor is made watertight with coatings, then water penetration is prevented, but manufacturing complexity and cost increase
Solution Approach 1:
Instead of using complex coated wooden floors, the design employs a trough-shaped collection system with walls that naturally contain water. The vertical walls act as physical barriers that prevent water penetration without requiring additional waterproof coatings or complex manufacturing processes, simplifying production while ensuring watertightness.
Solution Approach 2:
The separation of the collection system from the structural floor allows each component to be manufactured independently with standard materials and processes. The collection system can be produced as a separate module with built-in watertight walls, avoiding the need for complex waterproofing treatments on the entire floor structure and thus reducing manufacturing complexity.
4Ease of operation
If drip trays and drains are added to manage leakage water, then water disposal is improved, but the device complexity increases
Solution Approach 1:
The drainage function is merged into the trough-shaped collection system itself. The walls of the trough extend downward to form integrated drainage channels that collect and channel water directly away from the vehicle interior. This integration eliminates the need for separate drip trays and external drainage components, simplifying the overall system while maintaining effective liquid management.
Data Source
Figure 1
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Figure 4
AI summary
The invention relates to a rail vehicle for passenger transport, comprising at least one carriage that has a trough-shaped inner floor section (2).