Supercharger Inlet Insert for Enlarged Airflow Path
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Solution Overview
Problem
Conventional superchargers face limitations in airflow efficiency due to restricted modifications of the air inlet structure, often limited by wall thickness and existing geometry, which hinder further enhancement of supercharger performance.
Innovation Solution
A method involving a supercharger rotor housing with a machined landing surface and an insert, affixed via screws or adhesive, to enhance airflow by enlarging the air inlet path, utilizing CNC machining and potentially 3D printing for the insert, to improve airflow characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the air inlet structure is enlarged or modified by removing material, then airflow efficiency is improved, but wall thickness and structural integrity are reduced
Solution Approach 1:
The patent applies composite materials by combining the base rotor housing material (e.g., aluminum alloy) with a different material (e.g., epoxy or weld material) to build up wall thickness in specific areas. This composite approach allows the air inlet structure to be enlarged for improved airflow while the rebuilt areas maintain adequate wall thickness and structural integrity through the composite material construction.
2Strength
If the air inlet structure is modified by welding or adding epoxy, then wall thickness is increased, but manufacturing complexity and time are increased
Solution Approach 1:
The patent applies preliminary action by pre-forming the air inlet structure with the desired enlarged geometry using 3D printing technology before assembly. This eliminates the need for post-assembly welding or epoxy application, as the correct wall thickness and airflow geometry are achieved during the manufacturing process itself, significantly reducing manufacturing complexity and time.
3Productivity
If the air inlet structure is machined to enlarge the air path, then airflow resistance is reduced, but the extent of modification is limited by existing geometry
Solution Approach 1:
The patent applies parameter changes by utilizing 3D printing technology to create air inlet structures with optimized geometries that were previously impossible to achieve through conventional machining. This allows for significant enlargement and optimization of the air path, reducing airflow resistance while providing the flexibility to implement complex shapes and configurations that adapt to specific performance requirements.
Data Source
AI summary
A supercharger includes an insert affixed proximate to an air intake structure. Portions of the insert and the air intake structure are removed to enhance airflow into the supercharger. The supercharger body is typically cast aluminum and the insert is typically machined from aluminum. Conventional aluminum alloys may be used.