Multi-Valve Actuator Rotor Assembly for Selective Flow Control
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Solution Overview
Problem
Existing valve actuator systems struggle to efficiently control the selective operation of multiple valves individually, simultaneously, and in specific sequences, often requiring numerous components and complex control mechanisms.
Innovation Solution
A valve actuator with a first rotor and a second rotor connected via a unidirectional bearing, allowing coordinated rotational movement to actuate multiple valves individually, simultaneously, or in sequences, using actuating fingers and guides to control fluid flow through each valve.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing valve actuator systems are used to control multiple valves individually and selectively, then the valves can be operated selectively, but the system requires numerous components and complex control mechanisms
Solution Approach 1:
The patent combines multiple valve actuation functions into a single integrated actuator assembly. The first rotor with multiple actuating fingers and the second rotor with guides work together as a unified mechanism to control multiple valves, replacing what would traditionally require multiple separate actuators and control systems.
Solution Approach 2:
The actuator assembly is designed to perform multiple functions: it can actuate valves individually, simultaneously, or in sequences depending on the rotational position of the rotors. The same mechanical structure enables diverse valve control modes without requiring additional components.
2Ease of operation
If multiple valves are controlled using traditional actuator systems, then individual valve control is achieved, but the control mechanisms become complex and less efficient
Solution Approach 1:
The actuator is segmented into distinct functional components: the first rotor with multiple actuating fingers for individual valve control, and the second rotor with guides for directional movement control. This segmentation allows each component to perform its specific function simply, while the overall system achieves complex control capabilities.
Solution Approach 2:
The actuating fingers serve as intermediaries between the rotational motion of the first rotor and the linear motion required to operate the valves. The guides on the second rotor act as intermediaries to convert the rotational motion into controlled radial movement of the fingers, simplifying the control mechanism.
3Device complexity
If a single actuator controls multiple valves, then system complexity is reduced, but precise control of fluid flow through each valve becomes challenging
Solution Approach 1:
Each actuating finger is designed with specific local characteristics to engage with corresponding valves. The guides are positioned at specific angular locations on the second rotor to direct the movement of specific fingers, ensuring that each valve receives precise control tailored to its specific position and function.
Solution Approach 2:
The actuating fingers are pre-positioned on the first rotor at specific angular intervals corresponding to the valve positions. The guides on the second rotor are pre-positioned to direct the radial movement of the fingers to the correct angular locations, ensuring precise valve control is achieved automatically through the predetermined mechanical arrangement.
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 precise control of fluid flow through multiple valves, allowing individual, simultaneous, or sequential operation, enhancing system efficiency and reducing the complexity of control mechanisms.
Implementation Method 1
The second rotor is in operative connection with a unidirectional bearing, one way clutch, ratchet or other structure that enables rotation of the second rotor in the first rotational direction, but prevents rotation of the second rotor in the second rotational direction.
Data Source
AI summary
A valve actuator (6) selectively opens and closes a plurality of valves (8). The actuator includes a drive motor (5) that selectively rotates a first rotor (4) about an axis (0) in first and second rotational directions. A second rotor (2) is rotatable about the axis only in the first rotational direction. Actuating fingers (3) are movably mounted in operative connection with the first rotor through drive pins (4a) and are guided to move radially by guides (2a) positioned on the second rotor. A coupling including drive rods (4b) which extend from the first rotor and are movable within arcuate slots (2b) on the second rotor, enables relative rotational movement of the rotors and the outer ends of the actuating fingers to be selectively radially extended and retracted. The outer ends of the actuating fingers are engaged with one or more valves to control the flow of working fluid.