Electromechanical Valve Assembly for Fluid Flow Calibration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Manufacturing tolerances in solenoid valves lead to variations in fluid flow rate and pressure across a production run, resulting in inconsistent performance.
Innovation Solution
A method of assembling an electromechanical valve that involves positioning the armature stop at a first distance from the valve seat, actuating the valve to move the armature away, determining the fluid flow characteristic, and adjusting the armature stop's position relative to the valve seat to achieve a desired fluid flow rate, either by moving the armature stop itself or the component it is coupled to, while ensuring a fluid-tight seal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If standard manufacturing tolerances are used in valve assembly, then production efficiency is maintained, but fluid flow rate and pressure vary across production run
Solution Approach 1:
The armature stop is made adjustable rather than fixed, allowing dynamic repositioning along the valve stem to compensate for manufacturing variations. This enables each valve to be tuned individually for consistent fluid flow performance despite tolerances in other components.
Solution Approach 2:
The position of the armature stop is changed as a adjustment parameter to optimize fluid flow characteristics. By varying the stop position, the valve can be calibrated to achieve target flow rates and pressures, compensating for variations in manufacturing tolerances.
2Reliability
If the armature stop position is adjusted for each valve, then fluid flow consistency is improved, but assembly time increases
Solution Approach 1:
The armature stop is designed with preliminary positioning features such as indexing marks or pre-set positions that guide the adjustment process. This reduces the time required for calibration by providing starting points or recommended positions based on expected performance requirements.
Solution Approach 2:
The adjustment mechanism is designed to be self-aligning or self-locking, where the armature stop automatically positions itself or locks into place once adjusted. This reduces the skill level and time required for assembly operators to perform the adjustment.
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 approach allows for precise control of fluid flow rates and pressures, reducing variances in valve performance across a production run by adjusting the armature stop's position based on actual flow characteristics rather than predetermined settings, thereby enhancing the consistency and reliability of solenoid valves.
Implementation Method 1
an electromechanical valve including a wire coil that when energized produces a magnetic field to drive an armature
Data Source
AI summary
In at least some implementations, a method of assembling an electromechanical valve includes positioning the armature stop in a first position at a first distance from a valve seat, actuating the valve to move an armature away from the valve seat, providing a fluid flow to the valve, determining a fluid flow characteristic, and as a function of the fluid flow characteristic, moving the armature stop relative to the valve seat to a second position that is at a distance other than the first distance.