Fuel Pump Heat Shield Mounting for Motorcycle Engine Cooling
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Solution Overview
Problem
Existing fuel tank apparatuses for saddle-riding vehicles, such as motorcycles, fail to provide sufficient heat shielding for the fuel pump due to large heat-shield covers that do not effectively cover the target area, leading to increased fuel pump temperatures.
Innovation Solution
A fuel tank apparatus with a heat-shield cover mounted on the coupling portion between the fuel pump and the fuel tank, which is formed by bending a sheet-like member to cover the exposed portion of the pump flange, reducing component count and interference, and allowing for easy installation and effective heat shielding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a heat-shield cover is mounted on the engine to protect the fuel pump, then the fuel pump is shielded from heat, but the heat-shield cover becomes large in size and may interfere with engine components
Solution Approach 1:
Instead of mounting the heat-shield cover on the engine (heat source side), the patent inverts the approach by mounting it on the fuel pump (protected target side). This reversal allows the cover to be smaller and positioned precisely where heat protection is needed, eliminating interference with engine components while maintaining effective heat shielding.
Solution Approach 2:
The heat-shield cover is designed to cover only the specific exposed portion of the fuel pump that requires protection, rather than covering the entire engine area. This localized approach reduces the cover size and eliminates unnecessary material while providing targeted heat protection where it is most needed.
2Area of stationary object
If a large heat-shield cover is provided on the engine, then more area is covered, but the fuel pump cannot be entirely covered and heat shielding effectiveness is reduced
Solution Approach 1:
By inverting the mounting location from engine to fuel pump, the heat-shield cover achieves better coverage of the target object. The cover is positioned directly on the fuel pump's exposed portion, ensuring complete protection of the critical component rather than attempting to cover a larger engine area with reduced effectiveness.
3Object-affected harmful factors
If a heat-shield cover is mounted on the engine, then heat shielding is provided, but component interference occurs and airflow is restricted
Solution Approach 1:
Mounting the heat-shield cover on the fuel pump rather than the engine eliminates obstruction to airflow around the engine components. The cover is positioned in a location that does not interfere with the natural airflow patterns necessary for engine cooling and performance.
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 effectively suppresses fuel pump temperature increases by providing a high heat-shielding effect while minimizing the size of the heat-shield cover and preventing interference with engine components, allowing for improved airflow and reduced air resistance.
Implementation Method 1
a heat-shield cover that covers a portion of the fuel pump that is exposed from the fuel tank to shield the portion from heat of the engine
Data Source
AI summary
A fuel tank apparatus is disposed above an engine. The fuel tank apparatus includes a fuel tank in which fuel is stored and a fuel pump coupled to the bottom of the fuel tank. A heat-shield cover that covers a portion of the fuel pump, which portion is exposed from the fuel tank, to shield the portion from heat of the engine is mounted on a coupling portion between the fuel pump and the fuel tank.