Cam-Driven Multi-Channel Selector Valve for Compact Fluid Control
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Solution Overview
Problem
Conventional pinch valves are bulky, require additional space-consuming equipment like air compressors, and can only open and close one channel at a time, making them inefficient for applications needing to manage multiple fluid lines independently.
Innovation Solution
A multi-channel selector valve with a rotor and stator mechanism that uses an actuator to selectively open and close multiple channels through a cam system, eliminating the need for air compressors and minimizing space requirements, allowing for independent control of each channel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional pinch valves use air pressure to close the channel, then the valve can open and close channels, but the apparatus requires additional space-consuming equipment like air compressors
Solution Approach 1:
The invention extracts and eliminates the air compressor and pneumatic system from the valve apparatus. Instead of using external air pressure to close channels, the patent employs a mechanical cam-based blocking member system that is integrated directly into the valve body, removing the need for separate air supply equipment and significantly reducing the apparatus footprint.
Solution Approach 2:
The invention merges the channel closing function directly into the valve body structure through integrated blocking members that move within the housing. The mechanical cam mechanism is combined with the flow path geometry, eliminating the need for separate pneumatic components and consolidating multiple functions into a single compact unit.
2Ease of operation
If conventional pinch valves use mechanical closure bars to close channels, then the valve can control fluid flow, but the apparatus takes up a significant amount of space
Solution Approach 1:
The invention segments the channel control function into multiple independent blocking members, each capable of closing individual channels. This segmentation allows for a compact arrangement where multiple channels can be controlled in a small space, with each blocking member operating independently within its own flow path.
Solution Approach 2:
The invention transitions from linear mechanical closure bars to a radial/cam-based blocking member system. The blocking members move in a dimensional space defined by the cam profile, allowing for more efficient space utilization and compact positioning of multiple control elements within the valve housing.
3Adaptability or versatility
If conventional pinch valves are designed to close multiple channels, then the valve can manage multiple fluid lines, but the apparatus requires fully encased sleeves and complex mechanical presses
Solution Approach 1:
The invention creates a universal blocking member design that can control multiple channels through a single integrated mechanism. The cam-driven blocking members are configured to selectively engage with different channel apertures, allowing one valve assembly to universally control multiple fluid lines without requiring separate valves for each channel.
Solution Approach 2:
Instead of using complex mechanical presses that push from the outside to close channels, the invention inverts the approach by using cam-based blocking members that close channels from the flow path side. This inversion simplifies the mechanical structure by eliminating the need for fully encased sleeves and complex pressing mechanisms.
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 solution provides a compact, non-intrusive, and efficient method to control fluid flow in multiple channels, reducing space requirements and eliminating the need for air compressors, while enabling independent operation of each channel.
Implementation Method 1
The rotor includes an inverted cam, whereby one channel is opened while keeping all other channels closed by means of blocking members contacting the cam
Data Source
AI summary
A multi-channel selector valve includes a housing, a rotor at least partially disposed within the housing and rotatable about an axis of rotation, the rotor having a first cam surface, and a stator at least partially disposed within the housing. The housing includes a plurality of flow controllers arranged about the axis of rotation of the rotor, each flow controller including an aperture, and a blocking member disposed adjacent to the cam surface, the blocking member selectively movable relative to the aperture to open and permit flow through the aperture.