Rotary Slide Valve Coupling for Independent Flow Path Control
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Solution Overview
Problem
Existing fluid valve devices lack the ability to set multiple valves independently in a simple and flexible manner, limiting their effectiveness in controlling flow cross-sectional areas between fluid inlets and outlets.
Innovation Solution
A fluid valve device comprising a first rotary slide valve rigidly coupled to a drive shaft and a second rotary slide valve coupled to the drive shaft via a freewheel, both driven by a servomotor, allowing for independent setting of flow cross-sectional areas between fluid inlets and outlets through rotational positioning of the rotary slides within their housings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple rotary slide valves are used to independently control flow cross-sectional areas, then the ability to set multiple valves independently is improved, but the device complexity increases
Solution Approach 1:
Multiple rotary slide valves are integrated into a single valve housing with a common drive shaft, allowing independent flow control for multiple outlets while sharing common structural components and actuation mechanisms, thus reducing overall device complexity
Solution Approach 2:
The valve device is designed to handle multiple fluid outlets from a single inlet, with each outlet independently controllable through rotary slides, enabling one device to perform multiple flow distribution functions simultaneously
2Measurement precision
If each rotary slide valve is rigidly coupled to the drive shaft, then the control precision is improved, but the ease of operation deteriorates due to increased actuation force requirements
Solution Approach 1:
A freewheel mechanism is introduced as an intermediary between the drive shaft and the second rotary slide valve, enabling the valve to be positioned and held at desired angles without requiring continuous actuation force, thus easing operation while maintaining positioning precision
Solution Approach 2:
The coupling between the drive shaft and rotary slide valves is made dynamic through the freewheel mechanism, which allows the system to switch between locked and free states, reducing the force required to maintain valve positions
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 flexible and independent control of flow cross-sectional areas between multiple fluid inlets and outlets, allowing for precise distribution of fluid to specific outlets or blocking of connections, with a single servomotor driving both rotary slide valves, enhancing the device's operational flexibility and cost-effectiveness.
Implementation Method 1
a servomotor (10), in particular provided as an electric motor, for setting the rotary slides (6, 7) of the rotary slide valves (2, 3)
Implementation Method 2
the second rotary slide valve (3) is coupled to the drive shaft (11) via a freewheel (12)
Data Source
AI summary
A fluid valve device. A first rotary slide valve, a second rotary slide valve, and a servomotor are provided. Each of the rotary valves has a rotary slide arranged in a rotary slide housing and drivable via a drive shaft by the servomotor. The first rotary slide valve is rigidly coupled and the second rotary slide valve is coupled via a freewheel to the drive shaft.