Indexer Controlled Directional Valve for Precise Flow
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Solution Overview
Problem
Existing valve control systems lack precise mechanical control over fluid flow configurations, particularly in applications requiring multiple flow positions, leading to inefficiencies in fluid management.
Innovation Solution
A mechanically actuatable directional valve system coupled with an indexer mechanism, where the indexer mechanism is shifted by moving an indexing mandrel within a cam track, allowing precise mechanical control of the valve to select flow positions, enabling precise control of fluid flow through hydraulic lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a conventional valve control system is used, then the system is simple in structure, but it lacks precise mechanical control over fluid flow configurations
Solution Approach 1:
The patent introduces an indexer mechanism as an intermediary device between the actuator and the directional valve. This indexer mechanism includes a cam track and indexing mandrel that mechanically mediate the motion transmission, providing precise control of the valve element's position while maintaining a manageable system structure through modular design
2Manufacturing precision
If an indexer mechanism is added to achieve precise valve control, then manufacturing precision is improved, but device complexity increases
Solution Approach 1:
The control system is segmented into distinct functional modules: the directional valve, the indexer mechanism with cam track and indexing mandrel, and the actuator. This segmentation allows each component to be optimized independently for its specific function while reducing overall system complexity through modular architecture and clear interface definitions
3Adaptability or versatility
If mechanical actuation is used for the directional valve, then the system is simple and reliable, but it lacks the ability to achieve multiple precise flow positions
Solution Approach 1:
The system transitions from static mechanical actuation to dynamic controlled actuation. The indexer mechanism with its cam track profile allows the valve element to be dynamically positioned at multiple precise locations along its travel path, enabling adaptation to different flow configuration requirements while maintaining mechanical reliability through proven actuation technology
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
The system provides precise and repeatable actuation of directional valves, allowing for controlled fluid flow configurations in various applications, including wellbore and non-well applications, enhancing operational efficiency and flexibility.
Implementation Method 1
The indexer mechanism may be shifted by moving an indexing mandrel with respect to a cam constrained by a cam track in the indexing mandrel
Data Source
AI summary
A technique enables mechanical control of a directional valve. The technique may utilize a system comprising a directional valve which is mechanically actuatable between a plurality of flow positions. The directional valve is mechanically coupled with an indexer mechanism. The indexer mechanism may be shifted to a plurality of desired indexer positions defined by a cam track. As the indexer mechanism is shifted between indexer positions, the mechanical link between the indexer mechanism and the directional valve mechanically shifts the directional valve to selected flow positions of the plurality of flow positions.