Adjustable Fan Cover for Motorcycle Engine Warm-Up Control
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Solution Overview
Problem
Conventional motorcycle engine cooling devices prolong the warm-up process, leading to increased fuel consumption and environmental pollution due to excessive cold air intake during engine startup.
Innovation Solution
An engine temperature regulating device with a fan cover module that adjusts air intake holes based on engine temperature, using a link rod module and control module to switch between smooth and obscured states, limiting cold air intake during initial startup and allowing full airflow when the engine reaches operating temperature.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the cooling fan sucks a large quantity of cold air from the air intake hole of the fan cover during engine startup, then the engine cooling effect is improved, but the warm-up process time is prolonged
Solution Approach 1:
The patent applies the dynamics principle by making the air intake holes adjustable rather than fixed. The movable casing can rotate to change the opening area of air intake holes based on engine temperature conditions. During warm-up, the holes are reduced or closed to prevent excessive cold air intake; during operation, they are opened to enhance cooling效果
Solution Approach 2:
The patent changes the parameter of air intake hole area dynamically. The movable casing rotates to adjust the opening area of air intake holes according to engine temperature. This parameter change allows the system to adapt between warm-up and cooling requirements, resolving the contradiction between cooling effect and warm-up time
2Temperature
If the cooling fan operates continuously from engine startup to shutdown, then the engine cooling is maintained, but fuel consumption increases
Solution Approach 1:
The system changes the air intake parameter dynamically based on engine temperature. During warm-up phase, air intake holes are closed or reduced to minimize cold air mixing and accelerate warm-up, reducing fuel consumption. During normal operation, holes are opened to maintain cooling效果
Solution Approach 2:
The movable casing provides dynamic adjustment of air intake based on real-time engine temperature conditions, allowing the system to optimize between fuel efficiency during warm-up and cooling performance during operation
3Temperature
If the cooling fan operates during engine startup, then the engine cooling effect is enhanced, but waste gas discharge and environmental pollution increase
Solution Approach 1:
The air intake hole area parameter is adjusted dynamically to change the mixing ratio of cold air and exhaust gas. During warm-up, reducing or closing air intake holes minimizes cold air mixing with exhaust, reducing pollution. During operation, increased air intake improves cooling while managing emissions
4Device complexity
If a fixed size air intake hole is used in the fan cover, then the structure is simple, but the warm-up process is prolonged due to excessive cold air intake
Solution Approach 1:
The patent transforms the fixed air intake hole into a dynamic structure with a movable casing that can rotate. This adds complexity but enables control over air intake during different engine states, resolving the contradiction between structural simplicity and warm-up efficiency
Solution Approach 2:
The air intake system is segmented into fixed and movable parts. The movable casing can rotate independently to adjust the opening area of air intake holes, allowing selective control of air flow paths during warm-up and operation phases
Data Source
AI summary
Disclosed is an engine temperature regulating device installed to a cool air inlet of a casing of an engine. The engine temperature regulating device includes a power source, a link rod module connected to the power source, a control module and a fan cover module including a fixed casing and a movable casing. The control module is provided for detecting a temperature when the engine is turned on to control the power source to drive the link rod module, so as to control the rotation of the connected movable casing and further adjust an air intake hole of the fixed casing to a smooth or obscured state.