Eccentric Double Magnet Pressure Control Valve for Brake Systems
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Solution Overview
Problem
Existing pressure control valve arrangements for ABS brake systems require a large diameter pressure medium connection to accommodate vertically aligned pressure medium ducts, leading to unfavorable flow characteristics and increased production costs due to the need for reducing sleeves.
Innovation Solution
The pressure control valve arrangement features an eccentrically arranged double magnet with coaxial magnet coils and valve seats, allowing obliquely directed pressure medium ducts that reduce the distance to the pressure medium connection, enabling a smaller diameter connection and eliminating the need for reducing sleeves.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If vertically aligned pressure medium ducts are used with centrically arranged double magnet, then the structure is simple and manufacturing is easier, but the pressure medium connection requires large diameter leading to unfavorable flow characteristics
Solution Approach 1:
The double magnet is arranged eccentrically relative to the pressure medium connection axis, creating an asymmetric configuration. This allows the pressure medium ducts to be directed obliquely towards the connection, reducing the required diameter while maintaining functional performance. The asymmetric arrangement optimizes both flow characteristics and structural compactness.
Solution Approach 2:
The pressure medium ducts are directed obliquely rather than vertically, introducing a spatial dimension change. By angling the ducts at approximately 45 degrees relative to the pressure medium connection axis, the design achieves compact diameter while maintaining adequate flow paths, effectively utilizing three-dimensional space optimization.
2Ease of manufacture
If vertically aligned pressure medium ducts are used with centrically arranged double magnet, then the structure is standardized, but reducing sleeves are required increasing production costs
Solution Approach 1:
The eccentric arrangement of the double magnet eliminates the need for reducing sleeves by directly optimizing the pressure medium connection diameter. The asymmetric configuration allows the ducts to approach the connection at optimal angles, achieving the required flow characteristics without additional reducing components, thereby simplifying the overall device structure.
Solution Approach 2:
The reducing sleeves, which are additional components required in conventional designs, are completely eliminated. By reconfiguring the double magnet position and duct orientation, the design achieves the necessary flow optimization intrinsically, removing the need for separate reducing sleeve components and their associated manufacturing and assembly steps.
3Quantity of substance
If obliquely directed pressure medium ducts are used with eccentrically arranged double magnet, then the pressure medium connection diameter is reduced improving flow efficiency, but the manufacturing becomes more complex requiring oblique ducts
Solution Approach 1:
The eccentric arrangement of the double magnet is combined with the oblique orientation of the pressure medium ducts in a unified design. This integration allows the magnet position and duct direction to work together synergistically, achieving compact connection diameter while the ducts naturally follow optimal flow paths at approximately 45 degrees to the connection axis.
Solution Approach 2:
The design changes the geometric parameters of the system by positioning the double magnet at an eccentric location and orienting the ducts at oblique angles. This parameter optimization reduces the pressure medium connection diameter to approximately 10-15 mm while maintaining adequate flow characteristics, representing a deliberate trade-off that prioritizes flow efficiency.
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 simplifies manufacturing, reduces costs, and improves flow efficiency by allowing pressure medium ducts to run in both vertical and horizontal directions within the housing, enhancing the structural integrity and reducing the risk of leakage.
Implementation Method 1
The two magnet coils can be acted upon with electric current in order to generate a magnetic field for actuating a magnet armature
Data Source
AI summary
A pressure control valve arrangement for controlling fluid pressure in a brake system of a vehicle includes two diaphragm valves and two electromagnetic control valves, activatable by an electronic control device, for the pilot control of the diaphragm valves. The two electromagnetic control valves have a double magnet with two magnet coils and magnet armatures and are actuatable by current being applied to the magnet coils. The housing has at least one pressure medium connection, connected to a service brake valve, for acting with pressure upon and/or relieving the pressure of the pressure control valve arrangement and at least one connection for connecting to a brake cylinder. A plane of symmetry of the mid-axes of the magnet coils of the double magnet is arranged in parallel and offset by the amount of an eccentricity, with respect to a mid-axis of the pressure medium connection.