Integral Intake Manifold Endoskeletal Structure
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Solution Overview
Problem
Traditional intake manifold manufacturing is complex, time-consuming, and costly due to the assembly of multiple parts, which limits efficiency and practical air-flow shapes, and presents challenges in ensuring leak-proof bonds, especially when using lightweight materials.
Innovation Solution
An integral intake manifold with a plenum and channels formed as a unitary piece using additive manufacturing, featuring an endoskeletal support structure with partial walls that protrude inward, transitioning smoothly into runners without seals, allowing for optimized air flow and reduced material thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional multi-part intake manifold assembly is used, then structural strength and sealing are improved, but manufacturing complexity and production time increase
Solution Approach 1:
The patent merges multiple separate intake manifold components (plenum, runners, seals, and support structures) into a single monolithic structure manufactured via additive manufacturing. This eliminates the need for assembly operations, sealing elements, and multiple fasteners, directly resolving the contradiction by achieving structural integrity through integration rather than assembly.
2Strength
If traditional multi-part intake manifold assembly is used, then structural support is improved, but production time and cost increase
Solution Approach 1:
The additive manufacturing process performs preliminary structuring by building the intake manifold layer-by-layer with integrated support features built-in during the manufacturing process itself, rather than requiring post-assembly operations. The support structures are pre-formed as part of the monolithic geometry, eliminating assembly time and reducing overall production cycle.
3Reliability
If seals are used between plenum and runners, then leak-proof bonding is improved, but device complexity and assembly difficulty increase
Solution Approach 1:
The patent eliminates seals by merging the plenum and runners into a single continuous material structure. The monolithic design ensures leak-proof performance through material continuity rather than mechanical sealing, directly resolving the contradiction by achieving reliability through integration while eliminating assembly complexity.
4Ease of manufacture
If uniform wall thickness is used in plenum, then manufacturing simplicity is improved, but structural support in critical areas is reduced
Solution Approach 1:
The additive manufacturing process enables local quality variations in wall thickness, allowing thicker sections in high-stress areas (such as support structures and connection points) and thinner sections in non-critical areas. This resolves the contradiction by optimizing structural support where needed while maintaining manufacturing efficiency through the additive process.
5Adaptability or versatility
If traditional manufacturing methods are used, then material selection is limited, but manufacturing complexity increases
Solution Approach 1:
The patent leverages parameter changes in additive manufacturing technology to enable the use of diverse materials (metals, polymers, composites) that were previously difficult or impossible to manufacture using traditional methods. The additive process fundamentally changes the manufacturing parameters, allowing complex geometries to be created from a broader range of materials without proportionally increasing complexity.
Data Source
AI summary
An engine component includes an intake manifold of stratified layers defining a plurality of runners each having a gas outlet leading to a cylinder head, and a plenum including partial walls that form channels radiating from a common gas inlet and transitioning into the runners such that there is no seal between the plenum and runners. The partial walls form endoskeletal structure configured to support the intake manifold.