Intake Manifold Adaptability via Removable Vacuum Spigot Caps
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Solution Overview
Problem
The existing methods for molding intake manifolds for internal combustion engines often require additional caps to plug unused vacuum spigots, leading to increased costs due to variations in spigot requirements across different engines, as some engines may need one spigot while others need none or a different arrangement.
Innovation Solution
A method involving molding intake manifolds with hollow projections and caps, where the cap is removable from selected projections to accommodate engines with varying spigot requirements, allowing for efficient attachment of hoses to the exposed ends, thereby integrating a breakaway feature that can be easily removed with simple tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If extra vacuum spigots are molded into the intake manifold, then the manifold can be used on engines requiring spigots, but the cost increases for vehicles that do not need the extra spigots
Solution Approach 1:
The vacuum spigot system is segmented into two parts: the base spigot integrated into the manifold and a separate removable cap. This allows the cap to be selectively added or removed based on the specific engine application, enabling cost-effective manufacturing by only including caps when needed while maintaining versatility across different engine configurations.
Solution Approach 2:
The vacuum spigot configuration is made dynamic through the removable cap design. Instead of a fixed spigot arrangement, the system can be adapted by adding or removing caps as needed, allowing the same manifold to serve multiple engine types without incurring the cost of permanently molded extra spigots for every application.
2Adaptability or versatility
If different intake manifolds are molded for different engines, then each engine gets the exact spigot configuration needed, but the manufacturing complexity and inventory requirements increase
Solution Approach 1:
A single universal intake manifold design is created that can accommodate multiple engine types through the use of removable caps on vacuum spigots. Instead of manufacturing different manifold variants for different engines, the same manifold body serves all applications with the appropriate cap configuration, significantly reducing manufacturing complexity and inventory requirements while maintaining full customization capability.
Solution Approach 2:
The engine-specific spigot configuration requirements are extracted from the manifold design process. Rather than molding different spigot patterns into different manifolds, the needed variations are achieved by selectively adding or removing caps from the same manifold, separating the permanent manifold structure from the variable spigot configuration.
3Stability of the object's composition
If vacuum spigots are molded into the intake manifold, then the spigots are permanently integrated, but the ability to adapt to different engine requirements without extra caps is reduced
Solution Approach 1:
The vacuum spigot system is divided into the permanently molded base spigot (providing structural integrity) and a separate removable cap (providing adaptability). This segmentation allows the manifold structure to remain stable and well-defined while enabling flexible configuration changes by simply adding or removing caps based on engine requirements.
Solution Approach 2:
The spigot configuration transitions from a static, permanently molded feature to a dynamic system where caps can be added or removed. The base spigots remain structurally integrated for stability, while the cap component introduces flexibility, allowing the same manifold to be adapted to different engine configurations without compromising structural integrity.
Data Source
AI summary
A method is provided for forming intake manifolds for an internal combustion engine and for fastening such manifolds to the engines. The method includes: molding a plurality of identical ones of the intake manifolds, each one of the intake manifolds being molded with at least one hollow projection extending outwardly from an outer surface of the manifold, each one of the projections being molded with a cap at the distal end to seal the distal end of the hollow projection; removing the cap at a selected one or ones of the projections while leaving the cap on unselected one or ones of the projections; fastening each one of the intake manifolds to a corresponding one of a plurality of internal combustion engines; and for each one of the fastened intake manifolds, attaching a hose or hoses to the distal end or ends of the selected one or ones of the plurality of projections.