Split-Control Valve Assembly for Three-Mode Pressure Transfer
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Solution Overview
Problem
Existing backup transfer systems for split control effector actuators are limited by traditional two-position valves, leading to concerns about springs and seal wear, and there is a need for improved systems that can manage multiple modes of operation.
Innovation Solution
A system comprising a first and second controllable valve, each connected to a shutoff valve and a transfer valve, controlled by a transfer control system to manage fluid communication between pressure control lines and output lines, allowing three distinct modes of operation to address different functional system configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If traditional two-position valves are used in backup transfer systems, then the system structure is simple, but spring wear and seal wear increase
Solution Approach 1:
The patent divides the backup transfer system into multiple independent two-position valves (first backup transfer valve, second backup transfer valve, third backup transfer valve) instead of using a single multi-position valve. Each valve handles a specific function, which segments the wear and control responsibilities, reducing overall wear on individual components while maintaining system reliability.
Solution Approach 2:
The system dynamically switches between different valve configurations based on operational mode. The controller activates specific valves depending on whether the system is in normal operation, backup mode, or transfer mode, optimizing performance and minimizing wear by keeping valves in their optimal positions longer.
2Device complexity
If traditional two-position valves are used, then the valve configuration is simple, but the system can only support two modes of operation
Solution Approach 1:
The patent uses three separate two-position valves instead of one multi-position valve to achieve three operational modes. This segmentation allows each valve to independently control a specific aspect of the fluid path, enabling the system to support normal operation mode, backup mode, and transfer mode while keeping each individual valve simple.
Solution Approach 2:
The patent combines the functions of multiple two-position valves to achieve the capabilities of a more complex multi-position valve system. By merging the control functions of the first, second, and third backup transfer valves, the system achieves multi-mode operation without requiring any single valve to be complex.
3Adaptability or versatility
If multiple controllable valves and shutoff valves are used to manage three modes, then operational versatility improves, but device complexity increases
Solution Approach 1:
The system segments the control function across multiple simple two-position valves rather than using fewer complex valves. Each valve (first backup transfer valve, second backup transfer valve, third backup transfer valve) has a dedicated function, which simplifies the design of each individual component while achieving overall system versatility through their combination.
Solution Approach 2:
Each two-position valve is designed as a universal component that can serve multiple functions depending on its position and combination with other valves. The same valve type is used throughout the system, providing multi-functionality at the system level while maintaining simplicity at the component level.
Data Source
AI summary
A system can include a first controllable valve configured to output a first control pressure on one or more first pressure control lines, a second controllable valve configured to output a second control pressure on one or more second pressure control lines, and a valve assembly. The valve assembly can be configured to direct the first control pressure to a first functional system and the second control pressure to a second functional system in a first state, direct the first control pressure to both of the first functional system and the second functional system in a second state, and direct the second control pressure to both of the first functional system and the second functional system in a third state.