Reciprocating Motion Converter with Concentric Cylindrical Surfaces
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Solution Overview
Problem
Existing contactless magnetic converters for reciprocating motion to rotary motion have limited magnetic interaction area, leading to inefficiency and bulkiness due to small interaction surfaces between rotor and rod magnets, resulting in high specific costs and low engine power.
Innovation Solution
The converter design incorporates multiple concentric cylindrical working surfaces for simultaneous placement of magnet poles, increasing the interaction area and magnetic strength without increasing magnet volume, allowing both poles of the rotor and rod magnets to engage in force interaction, thereby enhancing efficiency and reducing the engine's bulkiness and magnet costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If magnets are extended in the radial direction to increase interaction area, then magnetic interaction strength increases, but device complexity and bulkiness increase
Solution Approach 1:
The patent transitions from a single cylindrical working surface to multiple concentric cylindrical working surfaces, adding a radial dimension to the magnetic interaction. This allows magnets to engage multiple surfaces simultaneously, increasing interaction area without extending magnet depth in the radial direction, thereby resolving the contradiction between force and volume.
Solution Approach 2:
The patent segments the magnetic interaction into multiple concentric cylindrical surfaces, allowing different portions of the magnet to interact with different surfaces. This segmentation increases the total interaction area while maintaining compact magnet dimensions, addressing the contradiction between magnetic strength and magnet volume.
2Ease of manufacture
If only one pole is placed on the cylindrical working surface, then device structure is simple, but magnetic interaction area is small leading to low efficiency
Solution Approach 1:
The patent adds multiple concentric cylindrical working surfaces in the radial direction, allowing both poles of each magnet to engage with different surfaces simultaneously. This increases the magnetic interaction area and conversion efficiency while maintaining the simple structural arrangement of having poles on cylindrical surfaces, thus resolving the contradiction between ease of manufacture and productivity.
3Device complexity
If air gap between rod magnets and rotor magnets is limited by single cylindrical surface, then device structure is simple, but magnetic interaction strength is reduced
Solution Approach 1:
The patent introduces multiple concentric cylindrical working surfaces at different radial positions, creating additional magnetic interaction paths. This allows the system to maintain a simple structural configuration while significantly increasing magnetic interaction strength through the multi-surface engagement, resolving the contradiction between device complexity and force.
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 significantly increases the magnetic interaction strength, allowing for lighter engine components, higher frequency, and increased power output while reducing the depth of magnets in the radial direction, thus improving the efficiency and power of the engine.
Implementation Method 1
specific interaction magnet power of the rotor magnets and rods is not large
Implementation Method 2
contactless magnetic converter of reciprocating motion to rotary motion
Data Source
AI summary
The present converter for converting reciprocating motion into rotary motion comprises a pair of rotors counter-rotating in axial alignment, said rotors having rotor magnets and auxiliary rotor magnets fastened thereon, and a pair of rods moving reciprocally in opposite directions relative to one another along the axis of rotation of the rotors, said rods having rod magnets and auxiliary rod magnets fastened thereon, wherein at least some of the rotor magnets and/or the rod magnets are arranged such that their poles are disposed on several concentric cylindrical working surfaces simultaneously.