Integrated Air Guide Intake Duct for Motorcycle Combustion Air
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Solution Overview
Problem
Conventional motorcycles, especially motor scooters with drive assembly swing arms, face challenges with structurally fixed intake snorkels that are poorly adaptable to varying vehicle designs, leading to undefined intake opening positions affecting air quality and requiring complex installation space management.
Innovation Solution
An integrated air guide intake duct is formed from parts of the air filter box and side trim parts, eliminating the need for an external snorkel, with a labyrinth for moisture separation and adjustable orientation to enhance water drainage and sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a structurally fixed intake snorkel is used, then the intake system is simple in structure, but it is poorly adaptable to varying vehicle designs and requires complex installation space management
Solution Approach 1:
The air filter box is integrated directly into the drive assembly swing arm, merging two previously separate components into one unified structure. This eliminates the need for an external snorkel while maintaining the intake function, thereby simplifying the overall structure while improving adaptability to different vehicle designs.
Solution Approach 2:
The drive assembly swing arm serves multiple functions: it houses the air filter box, provides structural support, and integrates the air guide intake duct. This multi-functional design allows the same component to serve different purposes across various vehicle models, enhancing versatility without increasing complexity.
2Manufacturing precision
If an external intake snorkel is used, then the intake opening position can be defined, but it requires installation space that must be provided in advance and complicates assembly
Solution Approach 1:
By integrating the air filter box directly into the drive assembly swing arm, the intake opening position is inherently defined by the integrated structure itself, eliminating the need for separate snorkel installation and the associated space requirements and assembly complexity.
3Adaptability or versatility
If the air guide intake duct is formed from parts of the air filter box and side trim part, then formal integration is achieved, but sealing measures are required to prevent leakage air
Solution Approach 1:
The air guide intake duct is formed by integrating portions of the air filter box and side trim part into a unified structure. This merging achieves formal integration while the sealing measures become an inherent part of the integrated design rather than separate additions, minimizing the increase in device complexity.
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
The solution provides a seamlessly integrated intake system that optimizes airflow, reduces installation complexity, and ensures effective water separation, improving air quality and adaptability across different vehicle models.
Implementation Method 1
An extent of the air guide intake duct of this type which is oriented toward the ground makes a gravity-induced return (water separation) possible of water which is sucked in with the combustion air
Implementation Method 2
In the interior, the air guide intake duct has a labyrinth which connects and returns moisture which is sucked in together with the combustion air before reaching the air filter box
Data Source
AI summary
An intake device is provided for the combustion air of a motorcycle, including an air filter box and an air guide intake duct which extends from the air filter box in a defined orientation to an intake chamber and at least sections of which are formed by parts of the air filter box.