Master Flange Assembly for Flexible Exhaust Header Design
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Solution Overview
Problem
Existing exhaust headers for internal combustion engines lack flexibility in accommodating various sizes and shapes of tubing, leading to inefficiencies in exhaust gas removal and potential for component warping due to heat and spatial constraints.
Innovation Solution
A modular master flange assembly that includes a customizable master flange with cavities and ribs, allowing for secure attachment of various tube sections through a welding process, providing a flexible and efficient system for designing and manufacturing headers that can accommodate different engine compartment spaces and tubing requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional one-piece cast iron or stainless steel exhaust manifolds are used, then structural strength and heat resistance are improved, but flexibility in accommodating various sizes and shapes of tubing is worsened
Solution Approach 1:
The exhaust manifold is divided into separate components: a header section with individual tube outlets and a collector section with a central aperture. This segmentation allows the tubes to be configured in various sizes and shapes while maintaining structural integrity through the separate pieces that are assembled together.
Solution Approach 2:
The collector flange is designed with a universal central aperture that can accommodate multiple tube configurations. The flange structure serves multiple functions: supporting various tube sizes and shapes, providing a mounting surface for the exhaust system, and maintaining structural strength across different applications.
2Adaptability or versatility
If custom tube configurations are implemented to accommodate various engine compartments, then adaptability is improved, but manufacturing complexity is worsened
Solution Approach 1:
By separating the manifold into a header section and a collector flange section, the design allows for standardized manufacturing of each component while enabling custom tube configurations in the header section. This reduces overall manufacturing complexity compared to creating entirely custom one-piece manifolds for each application.
Solution Approach 2:
The design allows for dynamic configuration of tube sizes and shapes in the header section to adapt to different engine compartment spaces, while the collector flange remains a standardized component. This dynamic adaptability in one section combined with standardization in another balances customization needs with manufacturing simplicity.
3Productivity
If larger tubes are used to improve exhaust gas removal, then exhaust efficiency is improved, but space requirements in the engine compartment are worsened
Solution Approach 1:
The collector flange is designed with a curved, circular aperture rather than a straight or angular shape. This curvature allows larger diameter tubes to be accommodated more efficiently within the available engine compartment space, as the rounded shape optimizes space utilization and allows exhaust tubes to route around other components more effectively.
Solution Approach 2:
The collector flange extends in multiple dimensions with its circular aperture and flange structure, allowing exhaust tubes to be positioned in three-dimensional space rather than constrained to a single plane. This enables larger tubes to be routed through the engine compartment more efficiently by utilizing vertical and lateral space dimensions.
Data Source
AI summary
Master flange assemblies are disclosed herein. In one embodiment, a master flange assembly includes a master flange and a tube. The master flange includes a central aperture, at least one through-hole, and a plurality of cavities. The tube is arranged to pass through the central aperture and form the master flange assembly when secured to the master flange. In one embodiment, the plurality of cavities are recessions formed in a first surface of the master flange, wherein the recessions do not pass through the master flange. In one embodiment, the plurality of cavities are separated by ribs. In one embodiment, the master flange includes a shoulder recessed from a second surface of the master flange and adjacent to the central aperture. The tube includes a rim that engages the shoulder of the master flange when the tube is secured to the master flange to form the assembly.