Work Machine Cooling Units Stacked in Flow Path
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Solution Overview
Problem
Existing work machines face challenges in improving cooling performance while maintaining compactness, as conventional cooling unit arrangements either increase installation space or compromise air flow rate and ventilation resistance.
Innovation Solution
The design features a work machine with a main flow path defined by opposing wall surfaces, where cooling units protrude perpendicularly to create opening portions and are partially overlapping, with a partition member guiding air flow to optimize cooling area and reduce ventilation resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple cooling units are arranged in parallel to improve cooling performance, then cooling area increases, but installation space increases and machine size increases
Solution Approach 1:
The patent transitions from arranging cooling units in parallel (same dimension) to stacking them in the flow path direction (different dimension). The first cooling unit is arranged at a first position in the flow path direction, and the second cooling unit is arranged at a second position downstream in the flow path direction, with partial overlap when viewed from the flow path direction. This dimensional change allows multiple cooling units to be compactly arranged without increasing machine size while maintaining sufficient cooling area.
2Area of stationary object
If cooling units are arranged to secure cooling area, then cooling performance improves, but ventilation resistance increases and air flow rate decreases
Solution Approach 1:
By arranging cooling units at different positions in the flow path direction with partial overlap, the patent creates multiple section flow paths (first section flow path and second section flow path) that distribute air flow. This dimensional arrangement prevents air flow congestion that would occur with parallel arrangement, maintaining ventilation efficiency while providing sufficient cooling area.
Solution Approach 2:
The patent divides the air flow into multiple section flow paths - a first section flow path with the first cooling unit as inlet and second opening portion as outlet, and a second section flow path with the first opening portion as inlet and second cooling unit as outlet. This segmentation distributes air flow across different paths, reducing ventilation resistance and maintaining air flow rate while providing adequate cooling area through the multiple cooling units.
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 enhances cooling performance while achieving a more compact size, ensuring efficient air flow and heat exchange without increasing the machine's dimensions.
Implementation Method 1
a fan for allowing air to flow along a flow path direction which is a direction in which the main flow path extends
Implementation Method 2
a first cooling unit that protrudes from the first wall surface... a second cooling unit that protrudes from the second wall surface
Data Source
AI summary
A work machine includes a first cooling unit that protrudes from a first wall surface at a first position of a main flow path and defines a first opening portion between the second wall surface and the first cooling unit; a second cooling unit that protrudes from the second wall surface on a downstream side of the first position in the flow path direction of the main flow path, defines a second opening portion between the first wall surface and the second cooling unit and partly overlaps with the first cooling unit when viewed from the flow path direction; and partition member that defines a first section flow path having the first cooling unit as an inlet and the second opening portion as an outlet and a second section flow path having the first opening portion as an inlet and the second cooling unit as an outlet.