Vehicle Intake System Moveable Funnel Radial Protrusion
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Solution Overview
Problem
Existing vehicle intake devices with moveable funnels face challenges in maintaining a compact size due to the need for larger spaces to accommodate the extension of these funnels, leading to increased device and fuel tank sizes.
Innovation Solution
A vehicle design incorporating a moveable funnel system with a link mechanism and protrusions in the case to prevent contact between the funnel and the case, along with a recessed fuel tank to minimize size, allowing for efficient air flow and reduced resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the intake box is structured with larger space to accommodate the moveable funnel's extended position, then the moveable funnel can be fully retracted without contact, but the overall size of the intake device increases
Solution Approach 1:
The invention introduces a protrusion that extends in the radial direction from the intake box wall, creating a three-dimensional spatial solution. This protrusion effectively reduces the required axial length of the intake box by utilizing the radial dimension to prevent contact between the moveable funnel and case, thereby resolving the contradiction between reliability and volume.
Solution Approach 2:
The intake box is segmented into multiple sections along its axial direction, with the protrusion located at a specific section that corresponds to the moveable funnel's position. This segmentation allows the protrusion to provide contact prevention functionality at the precise location needed, optimizing space utilization and preventing unnecessary volume increase.
2Productivity
If the moveable funnel is allowed to extend fully for optimal air intake, then air flow efficiency improves, but the device size increases to accommodate the extended position
Solution Approach 1:
By using a radial protrusion instead of increasing axial length, the invention enables the moveable funnel to extend fully for optimal air intake while maintaining a compact overall device length. The protrusion provides the necessary contact prevention in the radial dimension, freeing up axial space.
3Reliability
If the case is made larger to provide clearance for the moveable funnel's movement range, then contact prevention is ensured, but the fuel tank size must also increase
Solution Approach 1:
Instead of uniformly increasing the case size throughout, the invention applies a localized protrusion at the specific section where the moveable funnel is positioned. This local quality approach provides contact prevention exactly where needed, minimizing the impact on the overall cross-sectional area of the fuel tank and maintaining compact dimensions.
Data Source
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AI summary
The present invention relates to a vehicle comprising: an engine having an intake port; a fixed funnel that introduces air to the intake port of the engine; a moveable funnel that is moveably supported by a funnel moving mechanism on the intake side of the fixed funnel and that introduces air to the intake port of the engine along with the fixed funnel; and a case, in which the fixed funnel and the moveable funnel are disposed, wherein said case is provided with a protrusion at a section that covers the moveable funnel, the protrusion preventing the occurrence of contact between the case and the moveable funnel.