Utility Vehicle CVT Air Guide Layout for Exhaust and Sensor Cooling
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Solution Overview
Problem
Conventional utility vehicles are not efficiently cooling components that require cooling, such as water temperature sensors and oxygen concentration sensors, using cooling air from their belt-type continuously variable transmission devices.
Innovation Solution
The utility vehicle incorporates an air guide system with a first and second air guide plate, where the first plate is a metal plate held by the body and the second plate is made of a flexible material, guiding cooling air from the belt-type continuously variable transmission device to efficiently cool the engine's exhaust section and additional heating components like water and oxygen sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a single large air guide plate is used to guide cooling air, then the cooling coverage is sufficient, but the plate is large and prone to breaking or deforming
Solution Approach 1:
The air guide plate is divided into multiple smaller plates (first air guide plate and second air guide plate) that can be separately attached to the body and carrier box. This segmentation reduces the size of each individual plate, making them less prone to breaking or deforming while maintaining adequate cooling coverage through coordinated arrangement.
2Temperature
If a single large air guide plate is used, then cooling coverage is adequate, but the attachment structure becomes complex and space-consuming
Solution Approach 1:
Dividing the air guide into multiple smaller plates allows each plate to be attached to existing structural components (body and carrier box) using simple attachment members, rather than requiring a complex single-plate attachment system. This reduces overall device complexity and saves space.
3Temperature
If cooling air is discharged toward the engine only, then the engine is cooled, but other heating components like sensors are not efficiently cooled
Solution Approach 1:
The air guide system is designed to serve multiple cooling functions simultaneously. By arranging multiple air guide plates to direct cooling air toward both the engine and other heating components (such as sensors near the exhaust section), the system achieves multi-functionality in cooling various hot spots within the utility vehicle.
Solution Approach 2:
Different regions of the air guide system are configured to direct cooling air to different locations based on local heating requirements. The first air guide plate directs air to the engine while the second air guide plate directs air to other heating components, creating localized cooling zones where needed.
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 effectively cools the engine's exhaust section and sensitive components like water and oxygen sensors, enhancing cooling efficiency while maintaining structural integrity and compactness.
Implementation Method 1
an air guide disposed on a second side of the exhaust section and configured to guide the cooling air from the exhaust port to a cooling target
Implementation Method 2
the second air guide plate has a back portion in a form of an inclined portion inclined toward the exhaust port as the inclined portion extends backward relative to the body
Implementation Method 3
an exhaust port configured to discharge, from the belt-type continuously variable transmission device, cooling air drawn into the belt-type continuously variable transmission device to cool inside of the belt-type continuously variable transmission device
Data Source
AI summary
A utility vehicle includes an engine E provided for a body of the utility vehicle; an exhaust section 8 configured to discharge exhaust gas from the engine E; a belt-type continuously variable transmission device 31 configured to receive driving force from the engine E; an exhaust port 40 configured to discharge, from the belt-type continuously variable transmission device 31, cooling air drawn into the belt-type continuously variable transmission device 31 to cool inside of the belt-type continuously variable transmission device 31, the exhaust port 40 being on a first side of the exhaust section 8; and an air guide 41 disposed on a second side of the exhaust section 8 and configured to guide the cooling air from the exhaust port 40 to a cooling target.