Exhaust Gas Outlet System End Pipe Cover Assembly
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Solution Overview
Problem
Existing exhaust gas outlet systems for motor vehicles face challenges in securely and simply attaching end pipe covers to end pipes, often requiring complex methods like welding or locking connections that can impede gas flow and are difficult to assemble.
Innovation Solution
An exhaust gas outlet system featuring an end pipe cover with a radially offset inner and outer wall, utilizing a first positive-locking connection and annular recesses with securing elements like O-rings or hose clamps to securely attach the cover to the end pipe without material engagement, allowing for easy assembly and minimal gas flow obstruction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If welding or locking connections are used to attach the end pipe cover, then the attachment becomes secure, but the assembly process becomes complex and gas flow is impeded
Solution Approach 1:
The end pipe cover is divided into an inner wall and an outer wall that can be assembled separately. The inner wall is first attached to the end pipe via a positive-locking connection, and then the outer wall is pushed over the inner wall, allowing step-by-step assembly without complex operations.
Solution Approach 2:
A first annular securing element is introduced as an intermediary component to facilitate the connection between the end pipe cover and the end pipe. This securing element enables reliable attachment through a simple pushing motion without requiring welding or complex locking mechanisms.
2Reliability
If welding or locking connections are used to attach the end pipe cover, then the attachment becomes secure, but the assembly can only be performed by trained operators
Solution Approach 1:
The cover is segmented into inner and outer walls that can be assembled in sequence. The inner wall attaches first via positive-locking connection, then the outer wall is simply pushed over it, making the process intuitive and suitable for untrained operators.
Solution Approach 2:
The design allows the assembly to be performed through simple pushing motions without requiring specialized skills. The self-aligning features and intuitive structure enable anyone to assemble the cover securely without training.
3Reliability
If locking connections are used to attach the end pipe cover, then the attachment becomes secure, but the exhaust gas flow is impeded
Solution Approach 1:
The first annular securing element serves as an intermediary that provides secure attachment without protruding into the exhaust gas flow path. Its annular shape and positioning ensure it fastens the cover while maintaining clear gas flow through the end pipe.
Data Source
AI summary
An exhaust gas outlet system for a motor vehicle has an end pipe and a cover. The end pipe cover has an end pipe cover inner and outer wall constructed with at least two walls. The end pipe cover inner wall is constructed in at least two parts, can be closed radially around the end pipe and can be at least partially arranged in a positive-locking manner on the end pipe so that the end pipe cover inner wall in the state thereof mounted on the end pipe is not axially displaceable. A first annular securing element keeps the end pipe cover inner wall radially fixed on the end pipe. The end pipe cover outer wall can be pushed axially over the end pipe cover inner wall. The end pipe cover outer wall is fixed by means of a locking connection axially to the end pipe cover inner wall.