Conical Air Intake Housing Venturi Effect
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional air filter systems in vehicles experience turbulent airflow due to abrupt geometrical transitions, leading to engine choking, especially at high RPM, and fail to optimize airflow velocity and pressure, resulting in reduced engine performance.
Innovation Solution
A conical air filter housing is designed with the larger diameter upstream and the smaller diameter connected to the engine inlet, decoupled from the engine inlet tubing, featuring a funnel-shaped housing that gradually reduces in diameter to invoke the Venturi effect, enhancing airflow velocity and reducing pressure, while shielding the filter from engine heat.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a conventional cuboidal filter housing is used, then the air filter system is simple in structure, but the airflow becomes turbulent due to abrupt geometrical transitions from rectangular outlet to cylindrical inlet
Solution Approach 1:
The patent applies curvature by transitioning from a rectangular/cuboidal housing to a rounded housing with curved transitions. The housing features rounded corners and smooth curved surfaces that guide airflow from the rectangular filter outlet to the circular engine inlet without abrupt geometric changes, thereby maintaining laminar airflow while preserving structural simplicity
2Ease of operation
If a conical filter with larger diameter downstream is used, then the filter can be directly connected to the engine inlet, but the airflow experiences abrupt geometrical change and fails to increase velocity through the filter
Solution Approach 1:
The patent inverts the conventional conical filter orientation. Instead of having the larger diameter downstream (closer to engine), the filter is positioned with the larger diameter upstream (away from engine) and smaller diameter downstream (closer to engine). This inversion allows the filter to be directly connected to the engine inlet while the rounded housing gradually expands the airflow, increasing velocity through the filter material
3Volume of moving object
If the filter is directly connected to the engine inlet piping, then the system is compact, but the airflow cannot be properly shaped and experiences turbulent transition
Solution Approach 1:
The patent introduces a rounded housing with smooth curved transitions between the filter and engine inlet. This curved geometry properly shapes the airflow by eliminating abrupt angular transitions, maintaining laminar flow conditions while keeping the overall system compact through efficient use of space
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 results in increased engine power output, improved throttle response, and enhanced engine sound by maintaining laminar airflow and increasing airflow velocity, demonstrated by significant horsepower gains and improved performance in tests on high-performance vehicles.
Implementation Method 1
The funnel-shaped housing invokes the Venturi effect where the smooth reduction in cross-sectional area along the length of the housing causes the airflow to increase in velocity as the air passes through the housing
Data Source
AI summary
A vehicle air intake assembly is disclosed. The assembly includes a housing, a conical filter, and optionally may also include an inlet cowl. The housing and filter decrease in diameter from an inlet or distal end toward a proximal or outlet end. The shape of the housing guides the air into a smaller cross-sectional area and induces a Venturi effect on the airflow passing through the housing and filter. The housing decouples the filter from an engine inlet and the proximal or outlet end of the housing is sized so as to attach to the engine inlet and provide a smooth transition for the air leaving the housing and entering the engine inlet.