Contoured Carburetor Air Intake Plate for Flow Enhancement
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Solution Overview
Problem
Conventional carburetors face challenges in increasing air flow, leading to limited engine power, particularly in racecar applications, as existing methods like air scoops and turbochargers are either ineffective or not permitted in racing events, and result in inefficient fuel-to-air ratios.
Innovation Solution
A metal air intake plate with a fluted and contoured design that matches the carburetor's shape, reducing turbulence and enhancing volumetric flow rate by eliminating surface discontinuities, allowing for increased fuel mixing and engine power without creating a rich fuel mixture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional carburetor air intake openings are used, then the structure is simple, but the volumetric flow rate is limited and turbulence is high
Solution Approach 1:
The air intake opening is contoured with curved surfaces including a rounded leading edge and fluted radial contours instead of straight edges. This curvature eliminates surface discontinuities and reduces turbulence, improving volumetric flow rate while adding moderate structural complexity
Solution Approach 2:
Different regions of the air intake opening have different geometric properties - the leading edge is rounded while the radial surfaces are fluted with specific contour patterns. This localized variation in geometry optimizes airflow at different stages of entry without requiring complete structural redesign
2Quantity of substance
If air scoops and cowl intakes are added to increase air flow, then more air enters the carburetor, but the fuel-to-air ratio becomes unbalanced
Solution Approach 1:
The contoured geometry of the air intake opening changes the flow parameters including velocity distribution and pressure gradients. This optimized flow pattern allows for better fuel atomization and mixing, maintaining proper fuel-to-air ratio even with increased air volume
3Quantity of substance
If turbochargers or superchargers are installed to compress air, then about 50 percent more air enters the engine, but the device becomes expensive and unreliable
Solution Approach 1:
The patent extracts the air compression function from complex mechanical systems (turbochargers/superchargers) and replaces it with a passive geometric solution - the contoured air intake opening itself provides flow optimization without moving parts, eliminating reliability issues while maintaining increased air flow capability
4Productivity
If conventional flat air intake plates are used, then manufacturing is simple, but surface discontinuities create turbulence and reduce flow rate
Solution Approach 1:
The plate transitions from flat to contoured with curved surfaces including fluted radial patterns and rounded leading edges. This geometric transformation eliminates turbulence-causing discontinuities while remaining manufacturable through standard forming processes
Solution Approach 2:
The air intake opening transitions from a two-dimensional flat aperture to a three-dimensional contoured structure with radial flutes and curved surfaces. This addition of dimensional complexity improves airflow characteristics while the overall form remains simple enough for practical manufacturing
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 increases engine power by 5 to 8 horsepower through improved air flow and fuel mixing, while being easily installable and compatible with conventional air filters and air scoops, and does not require significant modifications to the car hood.
Implementation Method 1
The low profile plate is made of metal for durability and heat resistance. The centrally located air intake opening of the plate has a clover leaf or undulating shape that conforms to the shape of the carburetor air intake opening. The plate provides smooth transitions between surfaces to decrease turbulence and improve air flow.
Implementation Method 2
The air intake opening of the plate is contoured to match the shape of the carburetor intake opening and is also fluted to thereby improve air flow into the carburetor and engine performance.
Data Source
AI summary
An air intake housing and flow enhancing plate for a carburetor with a fluted and contoured air intake opening that flushly aligns with and matches the shape of the carburetor air intake opening. The low profile plate is made of metal for durability and heat resistance. The centrally located air intake opening of the plate has a clover leaf or undulating shape that conforms to the shape of the carburetor air intake opening. The plate is secured directly over the top of the carburetor, and extends radially outward to provide a larger area for securing its fiberglass housing. The housing holds a conventional ring shaped air filter located around the carburetor air intake opening. The plate provides smooth transitions between surfaces to decrease turbulence and improve air flow.