Tractor Engine Compartment Layout for Battery Access and Tank Cooling
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Solution Overview
Problem
Conventional tractors face challenges in maintenance work due to the placement of the reducing-agent tank further toward the vehicle-body front side than the radiator, which complicates access to the battery for maintenance.
Innovation Solution
The tractor is designed with the reducing-agent tank and battery positioned side by side, further toward the vehicle-body front side than the radiator, allowing for easier maintenance of the battery while shortening the engine compartment's front-back direction length.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the reducing-agent tank is disposed further toward the vehicle-body front side than the radiator, then heat transfer from the engine to the reducing-agent tank is suppressed and degrading of the reducing agent is prevented, but maintenance work on the battery becomes bothersome
Solution Approach 1:
The patent transitions from a front-back directional arrangement to a side-by-side arrangement in the width direction. By positioning the reducing-agent tank and battery adjacent to each other in the width direction rather than sequentially in the front-back direction, the patent enables simultaneous access to both components for maintenance while preserving the thermal insulation benefit of having the tank forward of the radiator
2Volume of stationary object
If the reducing-agent tank and battery are positioned front and back, then space utilization is optimized, but maintenance work on the battery requires removing the reducing-agent tank
Solution Approach 1:
The patent reconfigures the spatial arrangement from a one-dimensional front-back sequence to a two-dimensional side-by-side placement in the width direction. This dimensional change allows both the reducing-agent tank and battery to be positioned within the engine compartment's width, enabling independent access to either component without requiring removal of the other, while maintaining efficient space utilization
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 facilitates maintenance work on the battery without the need to remove the reducing-agent tank, while also optimizing the space usage in the engine compartment.
Implementation Method 1
a radiator that is disposed, in the engine compartment, further toward a vehicle-body front side than the engine and cools the engine
Implementation Method 2
an exhaust-gas cleaning device that uses a reducing agent to subject exhaust gas exhausted by the engine to a cleaning process
Implementation Method 3
the radiator serves as a heat-insulating wall positioned between the engine and the reducing-agent tank, the radiator suppresses heat transfer from the engine to the reducing-agent tank
Data Source
AI summary
A tractor includes: a vehicle body; an engine disposed in an engine compartment; a radiator that is disposed, in the engine compartment, further toward a vehicle-body front side than the engine and cools the engine; an exhaust-gas cleaning device that purifies exhaust gas exhausted from the engine using a reducing agent; a reducing-agent tank that stores the reducing agent supplied to the exhaust-gas cleaning device; and a battery, the reducing-agent tank being disposed, in the engine compartment, side-by-side with the battery and further toward the vehicle-body front side than the radiator.