Multiport Valve Rotary Slide Segmentation for Cooling Fluid Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing multiport valves in cooling fluid circuits of motor vehicles suffer from flow losses and inability to precisely control partial fluid streams, leading to inefficient temperature management and motor performance.
Innovation Solution
A 3/2-way multiport valve with a rotary slide and independent fluid channels, allowing for precise control of fluid flow through rotationally positioned channels that minimize deflections and flow losses, enabling efficient temperature management by routing cooling fluid either through a cooler or bypassing it depending on motor temperature and operational conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a rotary slide with sectionally separated bores is used in a multiport valve, then the valve can distribute media to different conduit connections, but the individual partial fluid flows blend together causing flow losses and inability to precisely control partial fluid streams
Solution Approach 1:
The rotary slide is divided into multiple axially extending, fluidally independent slide sections (first slide section, second slide section, etc.). Each slide section independently controls a specific fluid connection, allowing precise control of individual fluid streams without mixing. This segmentation eliminates the blending problem that causes flow losses while maintaining the ability to distribute media to different conduit connections.
Solution Approach 2:
Each slide section is designed with specific local characteristics to control particular fluid connections independently. The first slide section controls the first fluid connection, the second slide section controls the second fluid connection, and so on. This local differentiation allows each section to optimize its control function without interfering with other fluid streams, preventing flow mixing and associated energy losses.
2Device complexity
If the guiding element does not extend completely radially through the valve member, then the structure is simpler, but the individual bores flow into each other causing blending of partial fluid flows and flow loss
Solution Approach 1:
Instead of using a single guiding element that extends radially, the valve employs multiple axially extending slide sections that are fluidally independent. Each slide section acts as a separate flow control element, preventing the radial mixing that would occur with an incomplete guiding element while maintaining structural simplicity through modular design.
3Device complexity
If the valve member cannot close one entry opening while keeping another entry opening open, then the valve structure is simpler, but precise control of partial fluid streams is impossible leading to inefficient temperature management
Solution Approach 1:
The valve member is segmented into multiple independent slide sections, where each section can independently control its associated fluid connection. This allows the first slide section to close the first fluid connection while the second slide section keeps the second fluid connection open, enabling precise control of partial fluid streams for efficient temperature management without requiring a complex multi-component valve assembly.
Solution Approach 2:
Each slide section can be independently actuated to open or close its respective fluid connection dynamically. This independent dynamic control allows the valve to precisely regulate partial fluid streams according to temperature management requirements, improving productivity by enabling selective routing of cooling fluid to different outlets based on real-time conditions.
Data Source
AI summary
A multiport valve for controlling a fluid flow in a fluid circuit, such as a cooling fluid circuit of a motor vehicle, may include a valve housing having at least three fluid connections and a rotary slide for setting the fluid flow. The rotary slide includes at least two fluid channels and is configured to connect two respective fluid connections fluidly via one fluid channel dependent upon its rotary position in relation to its rotational axis. The at least three fluid connections and the at least two fluid channels overlap in relation to a crosswise direction oriented crosswise relative to the rotational axis.