Rail Vehicle Level Control Piston Wear Adjustment
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Solution Overview
Problem
Existing level control systems for rail vehicles are not compact enough to integrate both level adjustment and wear adjustment functions effectively, often requiring axial offsets that complicate design and operation.
Innovation Solution
A level control system with a hydraulically actuatable level control cylinder and piston, where the piston base body is movably guided within the piston sleeve for simultaneous level regulation and wear adjustment, allowing for radial offset integration of wear adjustment mechanisms such as snap rings, bayonet systems, and locking screws for secure positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If level control systems use separate axial offsets for level adjustment and wear adjustment, then both functions can be achieved, but the system design becomes complicated and operation becomes difficult
Solution Approach 1:
The patent combines the level adjustment function and wear adjustment function into a single integrated piston structure. The piston base body is movable within the piston sleeve, allowing both adjustment types to occur at the same location rather than requiring separate axial offsets. This merging of functions into one component reduces overall system complexity while maintaining full adjustability.
Solution Approach 2:
The patent implements a nested configuration where the piston base body is movably guided within the piston sleeve. The wear adjustment mechanism is nested inside the level control piston structure, with the piston base body sliding within the piston sleeve to provide wear adjustment while the entire piston assembly provides level adjustment. This nesting allows multiple adjustment functions in a compact integrated form.
2Device complexity
If level control systems integrate both adjustment functions in a compact design, then design is simplified, but reliable positioning and locking may be compromised
Solution Approach 1:
The patent employs dynamic locking mechanisms including snap rings that can engage with stepped portions of the piston base body to secure it at specific positions within the piston sleeve. The bayonet system provides a mechanical interlocking mechanism that ensures reliable positioning. These dynamic elements allow the system to maintain simplicity while achieving reliable locking through engaged/disengaged states.
Solution Approach 2:
The patent introduces intermediary locking elements such as snap rings and bayonet connectors that mediate between the movable piston base body and the fixed piston sleeve. These intermediary components provide the locking function without requiring complex integrated mechanisms, allowing the main piston structure to remain simple while ensuring reliable positioning through the intermediary locking elements.
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
Enables compact, reliable, and safe operation with integrated level and wear adjustment capabilities, allowing for continuous displacement and secure locking of adjustment positions, enhancing operational safety and simplifying the system design.
Implementation Method 1
at least one hydraulically actuatable level control cylinder
Data Source
AI summary
A level control system for a vehicle, in particular a rail vehicle, includes at least one level control cylinder and one level control piston, the level control piston being movably guided in the level control cylinder in order to adjust the level of the rail vehicle, the level control piston having an outer piston sleeve and a piston main body at least partially accommodated in the piston sleeve, and the piston main body being slidable relative to the piston sleeve for wear readjustment and being lockable and/or fixable in at least two adjustment positions.