Dual Fuel Tank Layout for Accurate Level Detection on Work Vehicles
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Solution Overview
Problem
The challenge is to accurately detect the amount of fuel stored in a fuel tank on an earthwork vibration roller, which has a complex shape, while maintaining the tank's capacity and functionality, as existing solutions struggle with detection accuracy in such configurations.
Innovation Solution
The solution involves a dual-tank system with separate fuel tanks positioned in front of and below the drive device, each equipped with a float sensor that detects fuel levels based on the liquid surface position at the vehicle's center, allowing for accurate fuel quantity measurement even when the vehicle is inclined.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the fuel tank is enlarged to increase fuel storage capacity, then the fuel storage capacity is improved, but the detection accuracy of the liquid level gauge deteriorates
Solution Approach 1:
The fuel tank is divided into multiple segments with individual liquid level gauges. Instead of using a single gauge for the entire enlarged tank, the patent employs multiple gauges distributed throughout the tank volume, each responsible for detecting fuel levels in its specific segment. This segmentation allows accurate detection even in a large-capacity tank.
2Adaptability or versatility
If the fuel tank is made with a complicated shape to fit vehicle constraints, then the adaptability to vehicle layout is improved, but the detection accuracy of fuel amount deteriorates
Solution Approach 1:
The complicated-shaped fuel tank is divided into multiple detection zones or segments. Liquid level gauges are strategically positioned in different segments to accurately measure fuel levels despite the irregular tank geometry. This segmentation approach allows the system to handle complex tank shapes while maintaining detection accuracy.
Solution Approach 2:
Different segments of the fuel tank are equipped with detection capabilities tailored to their specific geometric characteristics. Each local segment is optimized for accurate measurement, allowing the overall system to accurately detect fuel levels throughout the complicated-shaped tank.
3Measurement precision
If multiple liquid level gauges are arranged vertically to detect fuel amount accurately in a rectangular tank, then the detection accuracy is improved, but the device complexity increases
Solution Approach 1:
The liquid level gauges are designed with multi-functionality, serving both as level detectors and as reference points for calculating total fuel amount. By integrating multiple functions into each gauge unit, the system reduces overall complexity while maintaining accurate detection capabilities across the enlarged fuel tank.
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 configuration enables accurate fuel detection without reducing storage capacity, ensuring reliable operation and maintaining functionality across various orientations.
Implementation Method 1
a first storage amount detection part that is disposed in the first tank, and detects an amount of the fuel stored in the first tank; and a second storage amount detection part that is disposed in the second tank, and detects an amount of the fuel stored in the second tank
Data Source
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AI summary
A work vehicle including a drive device (10) having an internal combustion engine (12) for driving a vehicle body (1) has: a first tank (32) that is disposed in front of or behind the drive device, and stores fuel (9) to be supplied to the internal combustion engine; a second tank (34) that is disposed below the drive device so as to be separated from the first tank by a predetermined distance, and stores the fuel to be supplied to the internal combustion engine; a first storage amount detection part (70) that is disposed in the first tank, and detects an amount of the fuel stored in the first tank; and a second storage amount detection part (80) that is disposed in the second tank, and detects an amount of the fuel stored in the second tank.