Multi-Way Disc Valve Weir Shell for Smooth Flow Path Switching
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Solution Overview
Problem
Existing multi-way valves for controlling heating and cooling fluid flow in vehicles lack the ability to efficiently manage flow rates and pressure across multiple flow paths, leading to performance issues such as sudden flow rate and pressure changes.
Innovation Solution
The multi-way valve incorporates a valve rotor with a weir shell that extends around apertures in the valve housing, allowing for controlled flow rate adjustments as the rotor rotates between predetermined positions, thereby managing pressure and flow rate more effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a multi-way valve is used to control fluid flow to various thermal fluid circuits, then the ability to direct flow to multiple circuits is improved, but the control over flow rate and pressure in each flow path is insufficient
Solution Approach 1:
The valve is segmented into multiple flow paths with individual flow controllers for each path. Each flow controller independently regulates flow rate and pressure to its designated circuit, allowing precise control while maintaining multi-circuit capability. The valve body contains separate aperture assemblies, each with its own flow control mechanism.
Solution Approach 2:
The valve incorporates dynamic flow control capabilities where flow rate and pressure can be adjusted in real-time for each flow path. The flow controllers respond to system conditions and automatically modulate flow characteristics, providing adaptive control rather than fixed flow paths.
2Adaptability or versatility
If the valve rotor is rotated between different predetermined positions to control flow paths, then the flow path switching capability is improved, but sudden flow rate and pressure changes occur
Solution Approach 1:
The flow controllers are positioned and configured to anticipate flow path transitions. As the valve rotor approaches a new position, the flow controllers pre-adjust flow rate and pressure parameters to match the incoming flow path requirements, preventing sudden changes during switching.
Solution Approach 2:
The system incorporates cushioning mechanisms in the form of flow control elements that dampen sudden flow rate and pressure changes during valve rotor rotation. These elements act as buffers, smoothing transitions between flow paths by gradually adjusting flow characteristics rather than allowing abrupt changes.
3Device complexity
If existing multi-way valves are used without flow controllers, then the device complexity is reduced, but the flow rate and pressure management capability is insufficient
Solution Approach 1:
The flow controllers are designed as multi-functional components that simultaneously perform flow rate regulation, pressure control, and flow path switching coordination. This universal design provides comprehensive flow management capability without proportionally increasing device complexity, as each controller handles multiple control functions.
Data Source
AI summary
A multi-way valve includes a valve housing, a valve flow controller, and flow regulator. The valve housing is shaped to include a valve cavity and a plurality of apertures that open into the valve cavity. The valve flow controller is arranged in the valve housing to control flow through the valve housing. The flow regulator is configured to control a flow rate of fluid entering one flow path of a plurality of flow paths through the multi-way valve when the valve rotor is rotated.