Integrated Exhaust Pipe Silencer Design to Reduce Assembly Complexity
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Solution Overview
Problem
Existing mobile fuel-operated heaters face challenges in noise pollution and complex assembly due to separate configurations of mufflers and exhaust pipes, leading to increased assembly effort and cost.
Innovation Solution
A heater exhaust pipe assembly with an integrated silencer, manufactured from a rigid perforated sheet metal by round bending and longitudinal welding, where the silencer is designed as a one-piece component with unperforated curved sections, reducing assembly complexity and noise pollution through a compact, self-supporting design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a separate muffler and exhaust pipe configuration is used, then noise suppression function is achieved, but assembly complexity and assembly effort increase
Solution Approach 1:
The patent merges the muffler and exhaust pipe into a single integrated component. The exhaust pipe is formed from a perforated metal sheet that includes both the pipe sections and the muffler section with sound-absorbing material, eliminating the need for separate assembly of these components and reducing overall assembly complexity
2Object-affected harmful factors
If separate muffler and exhaust pipe sections are connected, then functional requirements are met, but manufacturing cost and assembly effort increase
Solution Approach 1:
The exhaust pipe and muffler are manufactured as a single integrated piece from a perforated metal sheet through roll bending and welding processes. This unified manufacturing approach eliminates the need for separate production and connection of individual components, significantly reducing manufacturing cost and simplifying the production process
3Stability of the object's composition
If rigid exhaust pipe arrangement is used, then structural stability is achieved, but adaptability to difficult installation conditions decreases
Solution Approach 1:
The exhaust pipe incorporates curved sections with specific curvature radii that allow the rigid structure to navigate around obstacles and adapt to difficult installation conditions. The curved geometry enables the rigid pipe to bend around corners and fit into constrained spaces while maintaining structural 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 integrated silencer design significantly reduces assembly effort, costs, and noise pollution while enabling easy installation without additional elbow elements, even in difficult conditions, by forming a compact, self-supporting structure with improved noise damping using insulating materials.
Implementation Method 1
improved noise damping using insulating materials
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
Provided is a heating device exhaust gas arrangement with an integrated sound suppressor, having: a rigid exhaust gas pipe (1) which is made by bending and longitudinally welding a perforated metal sheet and which has an un-perforated, curved first pipe section (2), an un-perforated second pipe section (3) and, formed integrally with the first pipe section (2) and the second pipe section (3), a perforated sound suppressor section (4) between the first pipe section (2) and the second pipe section (3), and a sound suppressor housing (5) which externally covers the perforated sound suppressor section (4) and which is arranged such that the first pipe section (2) and the second pipe section (3) both extend at least predominantly outside the sound suppressor housing (5).