Dual Fuel Tank Layout for Accurate Work Vehicle Fuel Sensing
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Solution Overview
Problem
The challenge is to accurately detect the fuel amount in a fuel tank of a work vehicle, such as an earthwork vibration roller, which has a complex shape and restricted visibility, making it difficult to maintain detection accuracy without reducing the tank's capacity.
Innovation Solution
The solution involves a dual-tank system where a first tank is positioned in front of or behind the drive device and a second tank is positioned below, each equipped with a float sensor to detect the fuel amount, allowing for accurate measurement and storage without compromising the vehicle's performance or capacity.
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 (first fuel tank and second fuel tank) separated by a partition wall. Each segment is equipped with its own liquid level gauge. This segmentation allows each detection system to cover a limited vertical range, maintaining detection accuracy while the combined capacity of multiple tanks provides the required total fuel storage capacity.
2Adaptability or versatility
If the fuel tank is made to have a complicated shape to fit vehicle body constraints, then the adaptability to vehicle body is improved, but the detection accuracy of fuel amount deteriorates
Solution Approach 1:
The fuel storage system is segmented into multiple independent tanks rather than using a single complicatedly-shaped tank. Each tank has a simpler geometry that facilitates accurate liquid level detection, while the collection of tanks together provides the required adaptability to fit within the vehicle body constraints.
3Device complexity
If a single liquid level gauge is used in a large fuel tank, then the device complexity is reduced, but the detection accuracy deteriorates
Solution Approach 1:
Instead of using one liquid level gauge in a large tank, the system segments the tank into multiple smaller tanks, each with its own liquid level gauge. This approach maintains relatively simple device complexity (avoiding a single complex detection system for a very large tank) while ensuring each gauge operates within an optimal detection range for accuracy.
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 and storage in complex-shaped fuel tanks, ensuring the vehicle's performance is maintained while allowing for efficient fuel management and detection, even when the vehicle is inclined.
Implementation Method 1
a first float sensor disposed in the first fuel tank and detecting an amount of the fuel stored in the first fuel tank; and a second float sensor disposed in the second fuel tank and detecting an amount of the fuel stored in the second fuel tank
Data Source
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.