Construction Machine Tank Neck-Down for Accurate Water Level Sensing
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Solution Overview
Problem
Construction machines experience false liquid shortage detections due to significant changes in water level when inclined, caused by the wide design of tanks, which exposes water level sensors and leads to incorrect readings despite sufficient water levels.
Innovation Solution
A construction machine design featuring a tank with a reduced-width section to house the water level sensor, reducing the width where the detection portion is located, thereby minimizing water level changes when the vehicle is inclined and preventing false detections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the tank width is increased to ensure predetermined amount of water, then the water storage capacity is improved, but the water level changes greatly when the vehicle is inclined causing false detections
Solution Approach 1:
The patent applies local quality by creating a reduced-width section at the specific location where the water level sensor is installed. This localized modification reduces the width of the tank only in the necessary area to minimize water level changes during inclination, while the rest of the tank maintains its sufficient width to ensure adequate water storage capacity. The reduced-width section is positioned to include the detection portion of the water level sensor, thereby improving measurement precision without sacrificing overall water storage capacity.
2Quantity of substance
If the tank width is increased to ensure predetermined amount of water, then the water storage capacity is improved, but the sensor may become exposed from the liquid surface when inclined
Solution Approach 1:
The patent applies local quality by creating a reduced-width section at the specific location where the water level sensor is installed. This localized modification reduces the width of the tank only in the necessary area to minimize water level changes during inclination, while the rest of the tank maintains its sufficient width to ensure adequate water storage capacity. The reduced-width section is positioned to include the detection portion of the water level sensor, thereby improving measurement precision without sacrificing overall water storage capacity.
3Measurement precision
If the tank width is decreased to prevent false detections, then the measurement precision is improved, but the water storage capacity is reduced
Solution Approach 1:
The patent applies segmentation by dividing the tank into two distinct width sections: a reduced-width section where the water level sensor is installed to ensure accurate detection, and a wider section that provides sufficient water storage capacity. This segmentation allows the tank to simultaneously achieve both goals - the reduced-width portion minimizes water level changes during inclination for reliable sensor operation, while the wider portion ensures adequate water storage capacity.
Solution Approach 2:
The patent applies local quality by creating a reduced-width section at the specific location where the water level sensor is installed. This localized modification reduces the width of the tank only in the necessary area to minimize water level changes during inclination, while the rest of the tank maintains its sufficient width to ensure adequate water storage capacity. The reduced-width section is positioned to include the detection portion of the water level sensor, thereby improving measurement precision without sacrificing overall water storage capacity.
Data Source
AI summary
A construction machine includes a vehicle body, a tank disposed in the vehicle body, and a sensor including a detection portion configured to detect the liquid. The tank accommodates a liquid. The sensor is supported by the tank. The tank includes a reduced width section formed to reduce a width of a predetermined range including the detection portion.