Work Machine Flow Regulation for Operator Seat Heat Protection
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Solution Overview
Problem
The operator's seat in a working machine becomes uncomfortably hot due to heat transfer from the prime mover, which is located beneath it, causing discomfort.
Innovation Solution
A cooling system is implemented with a cooling fan that draws outside air into the hood, and a flow regulator directs this air to the area above the prime mover, using inclined flow regulating plates to prevent heat buildup and transfer to the operator's seat.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the operator's seat is located above the prime mover for space efficiency, then the machine structure is compact, but heat transfers from the prime mover to the operator's seat causing discomfort
Solution Approach 1:
A flow regulator is introduced as an intermediary component between the cooling fan and the area above the prime mover. This flow regulator includes flow regulating plates that redirect the air flow path, allowing cooling air to reach the mount portion and operator's seat area without directly interfering with the prime mover's cooling requirements, thus mediating between space efficiency and heat protection
Solution Approach 2:
The flow regulator creates localized cooling zones by directing air flow specifically to the mount portion and area above the prime mover. The flow regulating plates are positioned to create different air flow patterns in different regions: cooling air is directed upward to the operator's seat area while allowing hot air to escape laterally, providing local quality improvement in heat protection
2Object-affected harmful factors
If a cooling fan is added to draw outside air into the hood, then heat transfer to the operator's seat is reduced, but device complexity increases
Solution Approach 1:
The cooling fan serves multiple functions: it draws outside air into the hood for general cooling, and through the flow regulator, it specifically directs cooling air to the operator's seat area. The flow regulator itself acts as a multi-functional component that both redirects air flow and structures the cooling pattern, reducing the need for separate cooling systems for different zones
Solution Approach 2:
The flow regulator combines the functions of air direction control and flow management into a single integrated structure. The flow regulating plates are positioned to simultaneously guide air flow in multiple directions and create the desired cooling pattern, merging what could have been separate control mechanisms into one unified component
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 setup effectively prevents or reduces heat transfer from the prime mover to the operator's seat, maintaining a more comfortable operating environment.
Implementation Method 1
a cooling fan to take in outside air from an outside of the hood to an inside of the hood and cause the outside air to flow to a surrounding area of the prime mover
Implementation Method 2
a flow regulator to guide a portion of the outside air taken in by the cooling fan to an area above the prime mover
Implementation Method 3
The flow regulator may include at least one flow regulating plate provided in an inclined manner in which the at least one flow regulating plate is inclined upward with decreasing distance to the prime mover
Data Source
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AI summary
Provided is a working machine (1) capable of preventing or reducing heat transferred from a prime mover (91) to an operator's seat (6). A working machine (1) includes a machine body (2), a prime mover (91) provided in the machine body (2), a hood (14) to cover the prime mover (91), an operator's seat (6) located above the prime mover (91), a cooling fan (100) to take in outside air from an outside of the hood (14) to an inside of the hood (14) and cause the outside air to flow to a surrounding area of the prime mover (91), and a flow regulator (203) to guide a portion of the outside air taken in by the cooling fan (100) to an area above the prime mover (91).