Working Vehicle Air Guide for Exhaust Cooling
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Solution Overview
Problem
The high temperatures in exhaust gas post-processing devices, such as DPF and SCR systems, can negatively affect sensor accuracy and the integrity of urea water supplied in dump trucks, leading to reduced performance and efficiency.
Innovation Solution
A working vehicle design that incorporates an air blowing device and a guide device to direct cooled air to the exhaust gas post-processing system, specifically lifting and guiding air to the upper side where the DPF and SCR devices are located, thereby reducing heat influence on these components and sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If exhaust gas post-processing devices (DPF, SCR) are disposed above the engine to process exhaust gas, then exhaust gas treatment function is improved, but heat from the engine and exhaust gas adversely affects sensor accuracy and urea water integrity
Solution Approach 1:
The patent introduces air as an intermediary cooling medium between the heat source (exhaust gas post-processing devices) and the sensitive components (sensors and urea water supply). The air blowing device generates a stream of air that flows through the exhaust gas post-processing devices, absorbing heat and preventing it from adversely affecting sensors and urea water, thus protecting these components while maintaining the exhaust treatment function
Solution Approach 2:
The patent employs pneumatic principles by using an air blowing device to generate and direct a controlled flow of air through the exhaust gas post-processing devices. This pneumatic cooling system creates a protective air stream that reduces heat accumulation and prevents thermal damage to sensitive components, effectively managing the thermal environment without compromising the exhaust treatment reliability
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 solution effectively cools the exhaust gas post-processing devices and sensors, enhancing their performance and reducing the impact of heat, thus improving the overall efficiency and accuracy of the exhaust gas treatment process.
Implementation Method 1
an air blowing device that generates a stream of air; a guide device that lifts and guides at least a part of the air generated by the air blowing device
Implementation Method 2
the stream of air passes through the exhaust gas post-processing device... effectively cools the exhaust gas post-processing devices and sensors
Data Source
AI summary
A working vehicle includes an engine, an air blowing device, an exhaust gas post-processing device, and a guide device. The air blowing device is disposed in front of the engine. The exhaust gas post-processing device processes exhaust gas from the engine, and is disposed above the engine. The guide device lifts and guides at least portion of the air from the air blowing device to an upper side where the exhaust gas post-processing device is provided.