Saddled Vehicle Air Cleaner Box Penetrated by Frame Member
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Solution Overview
Problem
Conventional saddled vehicles face challenges in increasing the capacity of the air cleaner box without altering the shape of the vehicle body frame, leading to larger vehicle dimensions.
Innovation Solution
A frame member from the vehicle body penetrates through the air cleaner box, with an inclined rear frame and strategically positioned through holes that guide outside air efficiently into the intake passage, enhancing intake efficiency without changing the vehicle body frame's configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of stationary object
If the air cleaner box capacity is increased by changing the shape of frame members, then the air cleaner box capacity is improved, but the vehicle body dimensions are increased
Solution Approach 1:
The frame member is nested through the air cleaner box, with the frame member passing through through-holes formed in the air cleaner box. This allows the air cleaner box to be positioned within the vehicle body frame structure without requiring external expansion, thereby increasing air cleaner box capacity while maintaining vehicle body dimensions.
2Volume of stationary object
If the frame member shape is changed to increase air cleaner box capacity, then the air cleaner box capacity is improved, but the frame member configuration is changed
Solution Approach 1:
The air cleaner box is segmented into multiple sections with through-holes formed at different positions. The frame member passes through these segmented sections, allowing the air cleaner box capacity to be increased without requiring changes to the overall frame member configuration, as the frame member simply traverses the segmented structure.
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 allows for increased air cleaner box capacity without enlarging the vehicle body, improving intake efficiency by guiding outside air through the frame member and promoting convection around the air filter, while maintaining the original frame shape.
Implementation Method 1
the frame member functions as a guide for guiding outside air to the air inlet to improve intake efficiency
Implementation Method 2
causing convection of the outside air in the space upstream of the air filter and improving intake efficiency
Data Source
AI summary
In a saddled vehicle (1) including an air cleaner box (30) for introducing outside air into an intake path of a power unit (P), a frame member (20) constituting a vehicle body frame (F) penetrates through the air cleaner box (30). An air inlet (31) for introducing the outside air is formed in an outer side surface of the air cleaner box (30) in a vehicle width direction. The frame member (20) is disposed along an edge of the air inlet (31) in a side view of a vehicle body. The frame member (20) includes a rectangular pipe material. An air filter (32) is housed in the air cleaner box (30). A through hole (40, 41) through which the frame member (20) passes communicates with a space (39) upstream of the air filter (32) in an intake passage.