Rotatable Motorcycle Fork Air Guide for Steering Adaptability
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Solution Overview
Problem
The region between the front wheel and the frontal covering of a motorcycle fork experiences significant air flow turbulence at high speeds, leading to increased air resistance and lift, and inefficient air supply to the radiator, which affects the motorcycle's performance.
Innovation Solution
An air-guiding device with a rear guiding element fixed on the rear side of the motorcycle fork and a rotatable front guiding element positioned on the front side, designed to minimize air intake and guide airflow effectively to the radiator, covering the fork aperture fully in all driving situations, including steering angles, using a combination of fixed and movable components to ensure seamless airflow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed air-guiding device is used to cover the fork aperture, then airflow guidance is effective during straight driving, but the device cannot adapt to steering angles and creates air gaps
Solution Approach 1:
The patent applies the dynamics principle by making the front guiding element rotatable relative to the rear guiding element about a vertical axis. This allows the air-guiding device to dynamically adjust its position and maintain effective coverage of the fork aperture during steering maneuvers, eliminating air gaps that would occur with a fixed device.
2Area of stationary object
If the front guiding element extends long to cover the fork aperture in all driving situations, then full-surface coverage is achieved, but the device complexity increases
Solution Approach 1:
Instead of extending the front guiding element excessively long to cover all areas, the patent uses a rotatable joint that allows a moderately sized element to dynamically position itself for optimal coverage during straight driving and steering, reducing overall device complexity while maintaining full coverage.
Solution Approach 2:
The air-guiding device is segmented into a rear guiding element fixed to the motorcycle and a front guiding element that can rotate independently. This segmentation allows each element to be optimized separately and work together through controlled relative motion, achieving comprehensive coverage without requiring an overly complex single-piece structure.
3Manufacturing precision
If the front guiding element is fixed to minimize air intake, then airflow guidance is precise during straight driving, but the device cannot accommodate steering movements
Solution Approach 1:
The patent resolves this contradiction by introducing a rotatable connection between the front and rear guiding elements. The front element can be precisely positioned and fixed for optimal airflow guidance during straight driving, while the rotational capability allows it to adapt to steering movements, maintaining both precision and adaptability.
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 air-guiding device reduces air resistance and lift, enhances airflow to the radiator, and maintains effective air supply during straight driving and steering, ensuring improved motorcycle performance by minimizing turbulence and optimizing airflow coverage.
Implementation Method 1
the front guiding element is rotatable with respect to the rear guiding element about a vertical axis
Implementation Method 2
air-guiding device is formed to bear at least with the front guiding element on the underside flat against the frontal covering and to minimize an intake of air in the vertical direction to the fork crown. Moreover, during travel, the air entering into the region of the fork aperture is guided in a predefined manner to the radiator
Data Source
AI summary
An air-guiding device for a motorcycle is provided to provide defined guidance of wind airflow in a region of a motorcycle fork. The air-guiding device include at least one rear guiding element in the longitudinal direction configured to be rigidly fastened to the motorcycle behind the motorcycle fork, and a front guiding element configured to be fastened indirectly or directly to the rear guiding element in front of the motorcycle fork in a manner which allows the front guiding element to rotate relative to the rear guiding element when the motorcycle fork is rotated about a vertical axis. The air guiding device may also be provided with a central guiding element behind the motorcycle for which is connected to the front guiding element and rotatable relative to the rear guiding element.