Tractor Tank Layout for Symmetrical Balance and Stable Center of Gravity

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Solution Overview

Problem

Agricultural tractors face issues with asymmetrical design, unstable weight balance, and non-intuitive fuel and cleaning fluid tank injection locations, which can lead to aesthetic imbalance, rollover risks, and difficulty in refilling.

Innovation Solution

The fuel and cleaning fluid tanks are positioned symmetrically behind the cabin, with injection holes exposed through fenders, ensuring balanced weight distribution and intuitive filling locations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If the fuel tank and cleaning fluid tank are arranged to utilize excess space in the tractor design, then the internal capacity of the tanks is maximized, but the overall design becomes asymmetrical resulting in aesthetic imbalance

Engineering Contradiction:
Improveinternal capacity of tanksVSAvoidaesthetic balance of overall design
Core Design Contradiction:
Quantity of substanceVSShape

Solution Approach 1:

The patent applies asymmetry principle by intentionally positioning the fuel tank and cleaning fluid tank in asymmetrical locations within the tractor's excess space, accepting the aesthetic imbalance as a trade-off for maximizing tank capacity and utilizing available space efficiently

Inventive Principle:
Principle #4Asymmetry

2Quantity of substance

If the fuel tank is positioned off-centered to one side to utilize available space, then the internal capacity is maximized, but the weight balance of the tractor becomes unstable depending on the amount of fuel stored

Engineering Contradiction:
Improvefuel storage capacityVSAvoidweight balance and center of gravity
Core Design Contradiction:
Quantity of substanceVSStability of the object's composition

Solution Approach 1:

The patent applies the anti-weight principle by positioning the cleaning fluid tank on the opposite side of the fuel tank, creating a counterbalancing effect. The cleaning fluid tank acts as a counterweight that offsets the weight imbalance caused by the off-centered fuel tank, thereby maintaining the tractor's overall weight balance and center of gravity stability

Inventive Principle:
Principle #8Anti-weight (Counterweight)

3Quantity of substance

If the injection hole is positioned at an awkward location to accommodate tank placement, then the tank capacity is maximized, but it becomes difficult to inject fuel and cleaning fluid appropriately

Engineering Contradiction:
Improvetank capacityVSAvoidconvenience of refilling operation
Core Design Contradiction:
Quantity of substanceVSEase of operation

Solution Approach 1:

The patent applies the another dimension principle by extending the injection hole side in a pipe form to reach an appropriate location and height for refilling operations. This dimensional extension allows the injection hole to be positioned at an ergonomically convenient location while still accommodating the tank's optimal placement for maximum capacity

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentEP4685036A1Agricultural tractor
Publication Date: 2026.01.28 LS MTRON LTD
  • EP4685036A1 patent drawingFigure 1
  • EP4685036A1 patent drawingFigure 2
  • EP4685036A1 patent drawingFigure 3

AI summary

The present invention relates to an agricultural tractor. In an agricultural tractor according to the present invention, a first injection hole for injecting fuel is arranged on a first fender side, and a second injection hole for injecting cleaning fluid is arranged on a second fender side. According to the present invention, effects are achieved in that a design with the aesthetics of a symmetrical balance is enabled and the center of gravity can be stably maintained.