Electromagnetic Regulating Device Central Force Actuation
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Solution Overview
Problem
Existing electromagnetic actuating devices for internal combustion engines face challenges in achieving a compact design with minimal lateral distance between actuator elements while minimizing eccentric loading, wear, and assembly costs, often resulting in increased friction and wear due to tilting moments and requiring additional components for absorption.
Innovation Solution
An electromagnetic adjusting device with a coil and pole core arrangement that applies central force to actuating elements, using multiple permanent magnets with different poles that can be independently controlled, eliminating eccentric loading and reducing component count, allowing for a compact and cost-effective design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple actuator units are arranged closely adjacent to achieve compact design, then the installation space is optimized, but eccentric loading and tilting moments increase causing increased friction and wear
Solution Approach 1:
The actuator is divided into a common housing containing multiple independent actuator units, each with its own coil and plunger. This segmentation allows each unit to be optimized independently while maintaining compact overall arrangement, reducing the harmful effects of eccentric loading on individual units.
Solution Approach 2:
The patent transitions from lateral arrangement of actuators to axial arrangement within a common housing. By stacking actuator units axially rather than placing them side-by-side laterally, the design achieves compact installation space while maintaining proper force alignment and minimizing eccentric loading effects.
2Reliability
If individual actuator units are used for each actuating task, then electromagnetic functionality is ensured, but configuration and assembly costs increase
Solution Approach 1:
Multiple actuator units are merged into a single common housing with shared magnetic circuit components. This consolidation reduces the total number of separate components, simplifies assembly procedures, and lowers configuration costs while maintaining the electromagnetic functionality of each individual actuator unit through proper magnetic circuit design.
3Area of stationary object
If actuator units are spaced at minimum distance to achieve compactness, then space utilization is improved, but mutual electromagnetic influence increases
Solution Approach 1:
The magnetic circuit is designed with localized magnetic paths for each actuator unit within the common housing. By providing dedicated magnetic circuits and proper shielding, the design allows actuator units to be closely spaced axially while preventing mutual electromagnetic interference, thus achieving compact space utilization without harmful electromagnetic coupling.
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 achieves reduced wear, minimized friction, and lower energy consumption by applying central forces to actuating elements, enabling efficient operation with shorter switching times and improved reliability by preventing simultaneous actuation of both elements in case of faults.
Implementation Method 1
the actuator unit has a coil that generates a magnetic field
Implementation Method 2
at least two permanent magnets are then arranged on an end face of the pole core in the axial direction, can be applied to them and can be displaced in the axial direction
Data Source
Figure 1
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Figure 3
AI summary
The invention relates to an electromagnetic regulating device (10) comprising an actuator unit (44) and an actuating unit (46) functioning in an axial direction (L), wherein the actuator unit (44) has a coil (12) generating a magnetic field and with a pole core (13) arranged within the coil (12), at least two permanent magnets (15, 17) are arranged in an axial direction (L) and lying against a front face (48) of the pole core (13), the permanent magnets are designed to be mountable on this pole core and to be displaceable in the axial direction (L), wherein the permanent magnets (15, 17) can be driven independently from each other by the coil (12), the permanent magnets have poles differently aligned in the axial direction and can each be controlled by energizing the coil (12), such that when the coil (12) is energized, at least one of two or more permanent magnets (15, 17) moves in the axial direction (L) counter to the other permanent magnets (15, 17). The actuating unit (46) is arranged in the axial direction (L) lying against the actuator unit (44), wherein the actuating unit (46) comprises at least two actuating elements (22, 24) which can be actuated in the axial direction (L), wherein each actuating element (22, 24) of the actuating unit (46) is respectively assigned to one of the permanent magnets (15, 17) and is actuated by the same in the axial direction (L). The actuator unit (44) and the actuating unit (46) are arranged in a common housing (26) of the regulating device. According to the invention, the actuating elements (22, 24) and the respective permanent magnets (15, 17) are concentrically arranged so that a force effect occurs centrally on the actuating elements (22, 24) which are arranged to be rotatable in the housing (26).