ATV Carburetor Intake Manifold Pressure Relief and Mounting
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Solution Overview
Problem
Intake manifolds in carburetor engines of all-terrain vehicles (ATVs) are prone to failure due to internal pressure buildup, and existing components, including engine mounts and oil cooler mounts, are not designed for durability or optimal airflow, while tachometers and carburetor air-fuel mixture adjustments are not easily accessible or readable.
Innovation Solution
A modified carburetor and intake manifold assembly featuring an aluminum intake manifold with a pressure relief valve, reinforced engine mounting brackets, transparent covers for visual inspection, and adjustable carburetor air-fuel mixture screws, designed to enhance performance, durability, and accessibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a rubber intake manifold is used, then it provides flexibility and ease of installation, but it fails under internal pressure buildup
Solution Approach 1:
The patent applies composite materials by combining rubber flexibility with aluminum reinforcement. The intake manifold uses a rubber base material for flexibility and ease of installation, while incorporating aluminum reinforcement strips or sections to provide structural strength and pressure resistance. This composite structure allows the manifold to maintain the advantages of rubber (flexibility, vibration damping, ease of installation) while overcoming its weakness (pressure failure).
Solution Approach 2:
The patent changes the material parameter of the intake manifold from pure rubber to a reinforced composite structure. By modifying the material composition and structural parameters (adding aluminum reinforcement, changing wall thickness in critical areas), the manifold gains enhanced pressure resistance while retaining flexibility. This parameter change resolves the contradiction between ease of installation and pressure reliability.
2Device complexity
If internal pressure is trapped in the intake manifold, then the existing structure maintains simplicity, but the manifold fails under pressure
Solution Approach 1:
The patent extracts the pressure management function from the overall intake system by incorporating a dedicated pressure relief valve directly into the intake manifold. This valve automatically releases excessive pressure when it exceeds safe levels, preventing manifold failure. The extraction of this critical function maintains relative structural simplicity while dramatically improving reliability under pressure conditions.
Solution Approach 2:
The pressure relief valve acts as an intermediary component between the compressed air/fuel mixture and the external environment. When pressure builds up excessively in the intake manifold, the valve opens to release the pressure, serving as a mediator that protects the manifold from pressure-related failures. This intermediary mechanism adds minimal complexity while solving the pressure resistance problem.
3Ease of manufacture
If standard engine mounting brackets are used, then installation is straightforward, but they become weak and brittle under high torque stress
Solution Approach 1:
The engine mounting brackets use composite materials, specifically aluminum alloy construction that combines lightweight properties with high strength-to-weight ratio. The brackets incorporate reinforced design elements and optimized material composition to withstand high torque stresses from high-performance engines while maintaining ease of installation through standard mounting procedures.
Solution Approach 2:
The mounting brackets feature curved and contoured designs rather than simple straight lines. The curved geometry distributes stress more effectively throughout the bracket structure, preventing stress concentration points that would lead to brittleness and failure under high torque conditions. The curved design maintains straightforward installation while significantly improving strength.
4Ease of manufacture
If traditional opaque covers are used for engine components, then manufacturing is simple, but visual inspection requires disassembly
Solution Approach 1:
The patent applies transparency (optical property change) to engine component covers such as the air filter housing and oil filler cap. These covers transition from opaque to transparent or translucent material, allowing visual inspection of internal components without disassembly. This maintains manufacturing simplicity while using readily available transparent plastics, eliminating time loss associated with frequent inspections.
5Ease of operation
If OEM carburetor air-fuel mixture screws are used, then the carburetor functions normally, but the screws are not easily accessible for adjustment
Solution Approach 1:
The patent repositions the carburetor air-fuel mixture adjustment screws to be accessible from the top or side of the carburetor rather than from beneath. This dimensional change in accessibility allows riders to adjust the air-fuel mixture without disassembling the carburetor or reaching into difficult-to-access areas, significantly improving ease of operation while maintaining the carburetor's functional integrity.
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 prevents intake manifold failure by releasing pressure, maintains engine stability with stronger mounts, improves airflow for oil cooling, and facilitates easier inspection and adjustment of air-fuel mixtures, enhancing overall ATV performance and reliability.
Implementation Method 1
the aluminum intake manifold incorporates a pressure relief valve and gasket adapted to replace the original equipment manufacturer (OEM) or aftermarket intake manifolds that breaks down
Data Source
AI summary
A mounting bracket for a handlebar of a discontinued All-Terrain Vehicle (ATV) is provided. The mounting bracket includes a U-shape body, wherein a lower portion of both legs of the U-shape body are tilted at an approximately thirty-degree degree angle relative to a remaining portion of the mounting bracket; and a plurality of mounting holes only provided along said lower portions.