Integrated Air Intake Filtration for Off-Road Engine and CVT Cooling
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Solution Overview
Problem
Off-road vehicles face challenges in supplying clean air to their engines and continuously variable transmissions (CVTs) due to dusty and wet operating conditions, which can lead to inefficiencies and potential engine damage, and the limited space in these vehicles complicates the arrangement of air supply components.
Innovation Solution
The design incorporates an air intake assembly with multiple apertures and conduits that direct air to both the engine and CVT, utilizing a filter housing with a compressible bellows and screen filters to ensure clean air intake, and CVT inlet and outlet conduits that optimize airflow and cooling, while being compact and adaptable to the vehicle's dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If air intake components are added to supply clean air to both engine and CVT, then air filtration and cooling capability is improved, but device complexity increases
Solution Approach 1:
The patent combines the air intake functions for both the engine and CVT into a single integrated air intake assembly. This assembly includes a common air intake passage, shared filtration components, and unified housing structure that serves both cooling needs, thereby reducing the total number of separate components while maintaining reliable air filtration and supply to both systems
Solution Approach 2:
The air intake assembly is designed as a multi-functional component that simultaneously performs air filtration, air supply to the engine, and air supply to the CVT cooling system. The single assembly handles multiple functions that would traditionally require separate systems, reducing overall device complexity while improving reliability through consistent air quality control
2Reliability
If multiple air intake components are installed for engine and CVT, then air supply capability is improved, but available space is reduced
Solution Approach 1:
The patent merges separate air intake systems for the engine and CVT into one consolidated assembly, eliminating redundant housing, mounting structures, and passage components. This integration significantly reduces the total volume occupied by air intake components while maintaining the capability to supply filtered air to both the engine and CVT simultaneously
Solution Approach 2:
The air intake assembly employs a nested structure where the CVT air intake passage is positioned within or alongside the engine air intake passage. The filtration components and housing elements are arranged in nested configurations that maximize space utilization, allowing multiple air supply functions to coexist in a compact footprint suitable for off-road vehicle installations
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 filters out dust and water, ensuring efficient engine operation and CVT cooling, even in harsh off-road conditions, while maintaining a compact and space-efficient design suitable for side-by-side off-road vehicles.
Implementation Method 1
The air intake assembly has a filter housing, a compressible bellows and a screen filter. The screen filter effectively filters out dust and water
Implementation Method 2
The air intake assembly has a filter housing, a compressible bellows and a screen filter. The bellows is compressed when the engine does not require all of the air that is supplied to the air intake assembly by the air intake system. The bellows stores excess air that is supplied by the air intake system
Implementation Method 3
Another portion of air entering the air intake assembly via the at least one air intake assembly inlet flows out of the air intake assembly via the at least one second air intake assembly aperture and then flows to the interior of the CVT housing
Data Source
AI summary
A filter housing has a first aperture, a tube connected to and extending from the first aperture, at least one second aperture, and at least one filter connected to the at least one second aperture for filtering air entering the at least one second aperture. A portion of air entering the filter housing flows out of the filter housing via the first aperture and through the tube. Another portion of air entering the filter housing flows out of the filter housing via the at least one second aperture around the tube separately from the portion of air flowing out of the filter housing via the first aperture.