Electromagnetic Valve Assembly Integrated Check Valve Orifice
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Solution Overview
Problem
Existing electromagnetic valve assemblies for vehicle systems face issues with durability and leakage, particularly at the check valve orifice, and are complex in design and costly to manufacture.
Innovation Solution
The electromagnetic valve assembly integrates the check valve orifice into the valve seat, using a durable metal material and a ball guide defined by the valve and filter seats to guide the ball, reducing wear and allowing easy assembly and disassembly, while maintaining a compact and simple design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional check valve assembly with separate components is used, then the assembly is functional, but the check valve orifice is prone to wear and leakage over time
Solution Approach 1:
The check valve orifice is integrated directly into the valve seat body, eliminating the need for a separate check valve component. This merging of functions reduces the number of parts while improving durability, as the orifice is now formed in a durable metal valve seat rather than a separate plastic or soft material component.
2Ease of repair
If multiple separate components are used for the check valve assembly, then the design is functional, but assembly and disassembly are complex and time-consuming
Solution Approach 1:
By integrating the check valve orifice into the valve seat, the assembly is simplified to fewer components that can be more easily assembled and disassembled. The valve seat with integrated orifice acts as a single unit, reducing assembly steps and facilitating maintenance.
3Reliability
If a durable metal valve seat is used with integrated check valve orifice, then durability and leakage resistance are improved, but manufacturing complexity may increase
Solution Approach 1:
The check valve orifice is formed as an integral feature of the metal valve seat through machining or other manufacturing processes. This integration eliminates the need for separate check valve components and their associated assembly operations, potentially simplifying manufacturing despite the requirement for durable metal materials.
4Ease of operation
If the guide passage is defined by multiple components, then the ball guidance is functional, but the design is complex and alignment during assembly is difficult
Solution Approach 1:
The guide passage is formed as an integral feature of the valve seat and filter seat assembly, providing built-in guidance for the ball. This integration eliminates the need for separate guide components and ensures proper alignment is maintained during assembly, as the guide passage is formed by the mating surfaces of the valve seat and filter seat.
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
This design enhances durability, reduces the risk of leakage, and simplifies manufacturing and maintenance by using fewer components and a metal valve seat, resulting in a robust and cost-effective hydraulic pressure control system.
Implementation Method 1
A ball overlies the check valve orifice and allows fluid to flow from the outflow chamber to the compartment of the valve seat through the check valve orifice while preventing fluid from flowing from the compartment of the valve seat to the outflow chamber through the check valve orifice
Implementation Method 2
An armature 120 and corresponding solenoid (not shown) provide movement of the tappet 118
Data Source
AI summary
An electromagnetic valve assembly including a magnetic core defining a channel. A valve seat is received by the channel and defines a compartment. An outflow chamber is defined between the magnetic core and the valve seat. The valve seat defines an orifice that fluidly connects the compartment of the valve seat and the outflow chamber. A tappet is axially moveable to open and close the orifice. The valve seat further defines a check valve orifice fluidly connecting the compartment of the valve seat and the outflow chamber. A ball overlies the check valve orifice. A filter seat is secured to said valve seat. A ball guide is disposed in alignment with the check valve orifice and defines a guide passage that receives the ball for guiding the ball toward and away from said check valve orifice. The guide passage is defined by the valve seat and the filter seat.