Axial Flow Fluid Valve Encapsulation to Prevent Magnet Housing Leakage
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Solution Overview
Problem
Existing axial flow fluid valves, such as coolant shut-off valves, face challenges in maintaining low pressure loss and preventing fluid ingress into the magnet housing, which can lead to malfunction or failure due to connecting gaps in the magnet housing parts.
Innovation Solution
A compact magnet housing formed by an encapsulation body that encloses the electromagnet, coil, and yoke device, eliminating connecting gaps and ensuring fluid-tight sealing, combined with a one-piece flow housing section and plug socket design for alignment and sealing, and additional sealing rings for radial gaps to prevent fluid leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the magnet housing is made up of several magnet housing parts connected in a form-fitting manner, then the magnet housing can be manufactured more easily and assembled flexibly, but connecting gaps between the parts allow fluid to penetrate into the magnet housing and damage the electromagnet
Solution Approach 1:
The patent merges multiple magnet housing parts into a single one-piece magnet housing structure. This eliminates the connecting gaps that existed between separate parts, preventing fluid from penetrating into the magnet housing and damaging the electromagnet, while maintaining manufacturability through appropriate molding or machining processes
2Volume of moving object
If the electromagnet is arranged radially inside the through-flow channel, then the fluid valve can provide a sufficiently large through-flow cross section for high volume flows and be of compact design, but a special magnet housing must be provided to prevent fluid from penetrating into the electromagnet
Solution Approach 1:
The magnet housing is integrated as a one-piece structure that is formed simultaneously with the flow channel housing, eliminating the need for separate magnet housing components. This integration maintains the compact radial arrangement of the electromagnet while eliminating connecting gaps, thus preserving both the large through-flow cross section and compact design without adding unnecessary complexity
3Ease of operation
If small connecting gaps exist between magnet housing parts, then assembly is simplified, but fluid can penetrate through these gaps into the magnet housing leading to malfunction or total failure
Solution Approach 1:
By combining multiple magnet housing parts into a single integrated structure, the patent eliminates the connecting gaps that serve as pathways for fluid penetration. The one-piece design maintains ease of assembly through standard manufacturing processes while completely preventing fluid from entering the magnet housing and causing malfunction or failure
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 effectively prevents fluid ingress into the electromagnet, reduces power consumption, and ensures reliable operation with low pressure loss, enabling long service life and cost-effective production of the fluid valve.
Implementation Method 1
an electromagnet with a coil and a return device, which is arranged inside the magnet housing
Implementation Method 2
an electromagnet with a coil and a return device, which is arranged inside the magnet housing
Data Source
Figure 1
Figure 2
AI summary
Fluid valve (10) through which fluid can flow axially, in particular coolant shut-off valve, having a valve housing (12) which delimits a throughflow duct (14) radially to the outside, having a flow housing section (18), an inlet stub (20) which is fastened to a first axial end (24) of the flow housing section (18), and an outlet stub (22) which is fastened to a second axial end (26) of the flow housing section (18), which second axial end (26) lies opposite the first axial end (24), a magnet housing (16) which is arranged within the valve housing (12) and delimits the throughflow duct (14) radially to the inside, an electromagnet (32) with a coil (34) and a back iron device (38) which is arranged within the magnet housing (16), and a valve body (30) which is arranged axially displaceably in the valve housing (12), can be lowered onto a valve seat (28) and can be lifted from the valve seat (28) via the electromagnet (32), in order to change a throughflow of the fluid valve (10), wherein the magnet housing (16) is formed by way of an overmoulded body (52), by way of which the electromagnet (32) is overmoulded, and which encloses the coil (34), the back iron device (38), and an axial end (54) of the electromagnet (32), which axial end (54) faces away from the valve seat (28).