Decentralized Water Tank Layout for Rail Vehicle Weight Distribution
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Solution Overview
Problem
Rail vehicles face challenges with inflexible water supply systems due to limited space, leading to suboptimal weight distribution and inefficient use of space, which affects driving dynamics.
Innovation Solution
A carriage design with multiple fresh or drinking water reservoirs, each associated with consumer units, connected for joint filling and equipped with valves and level meters for decentralized and flexible water management, allowing simultaneous filling and improved weight distribution by positioning tanks below the roof area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single fresh or drinking water tank is provided in the roof area, then the water supply system is simple, but the weight distribution is suboptimal and space utilization is inflexible
Solution Approach 1:
The single water tank is divided into multiple separate tanks (first fresh water tank, second fresh water tank, drinking water tank). Each tank is independently positioned and can be individually filled, allowing flexible distribution of weight and space utilization while maintaining system functionality
Solution Approach 2:
The patent transitions from positioning all tanks in the roof area to a multi-level arrangement where tanks are distributed both in the roof area and in the interior space below. This vertical and spatial distribution optimizes the center of gravity position and improves weight balance during vehicle operation
2Adaptability or versatility
If multiple fresh or drinking water tanks are arranged within the wagon, then space flexibility and weight distribution improve, but the filling process becomes more complex
Solution Approach 1:
Each tank is pre-equipped with its own filling connection and control valve. The control unit can independently activate filling operations for each tank based on their respective fill levels, allowing parallel filling operations to be managed systematically without requiring complex sequential coordination
Solution Approach 2:
Each tank has its own level sensor and control valve that work autonomously. When a tank reaches its maximum fill level, its level sensor automatically signals the control unit to close its filling valve, enabling self-regulating filling operations without requiring manual intervention for each tank
3Ease of manufacture
If tanks are positioned in the roof area, then installation is simple, but the center of gravity is elevated affecting driving dynamics
Solution Approach 1:
The system utilizes both the roof area and the interior space below as available installation dimensions. Tanks are strategically positioned in both locations, with heavier tanks or those requiring frequent access placed in the interior space to lower the center of gravity, while still maintaining ease of installation through standardized mounting interfaces
Data Source
Figure 1
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AI summary
The invention relates to a car (1) for a rail vehicle, having a plurality of fresh water or drinking water containers (111, 112) which are arranged within the car (1). At least one load unit (101, 102) for using the fresh water or drinking water is paired with each fresh water or drinking water container (111, 112). Furthermore, the car (1) has a connection for a common filling process of the plurality of fresh water or drinking water containers (111, 112) with fresh water or drinking water and a line (3, 13) for pumping fresh water or drinking water, said line leading from the connection (2, 12) to the fresh water or drinking water containers (111, 112). Furthermore, a valve (V1, V2, V3, V4) is connected within the line (2, 12) upstream of each fresh water or drinking water container (111, 112). The invention further relates to a method for filling a plurality of fresh water or drinking water containers (111, 112) and to a controller (S) which carries out the method.