Connecting Device with Decoupling Sleeve for Vibration Damping
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing connecting devices for motor vehicle engine components fail to provide a reliable and noise-reducing connection, leading to vibration and noise transmission between components.
Innovation Solution
A connecting device featuring a sleeve with a hollow cylindrical guidance section, an axially limiting section, and a radially outward limiting section, combined with a decoupling element such as a rubber ring, which forms a seating section for accommodating the decoupling element and a gasket element with flow openings, allowing for a resilient and noise-reducing connection between components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a rigid connecting device is used to connect two components, then the connection strength is improved, but noise and vibration transmission between components increases
Solution Approach 1:
A decoupling element is introduced as an intermediary component between the two components to be connected. This decoupling element absorbs vibrations and reduces noise transmission while maintaining the mechanical connection through the sleeve structure, thus resolving the contradiction between connection strength and noise reduction.
Solution Approach 2:
The connecting device employs composite material construction, particularly in the decoupling element which may combine rubber or plastic materials with metallic components. This allows the connection to exhibit both structural integrity for strength and viscoelastic properties for vibration damping and noise reduction.
2Object-affected harmful factors
If a resilient connecting device with decoupling element is used, then noise and vibration transmission is reduced, but connection reliability may be compromised
Solution Approach 1:
The connecting device is segmented into distinct functional components: a sleeve providing structural support and guidance, and a decoupling element providing vibration isolation. This segmentation allows each component to optimize its specific function while working together to achieve both reliability and noise reduction.
Solution Approach 2:
The sleeve features a hollow cylindrical guidance section with curved surfaces that provide precise alignment and guidance for the connecting element. The cylindrical geometry ensures uniform stress distribution and reliable positioning, maintaining connection reliability while the decoupling element handles vibration isolation.
3Manufacturing precision
If a complex sleeve structure with multiple sections is used, then the guiding and positioning precision is improved, but device complexity increases
Solution Approach 1:
The sleeve is designed as a multi-functional component that simultaneously provides guidance, positioning, and structural support functions. The hollow cylindrical guidance section, axially limiting section, and radially outward limiting section work together in an integrated manner, reducing the need for additional separate components and simplifying the overall device structure.
Solution Approach 2:
The decoupling element is nested within the sleeve structure, with the sleeve providing an outer framework and the decoupling element positioned inside. This nested arrangement allows both components to occupy the same spatial envelope, reducing overall device complexity while maintaining precise guiding and positioning functions.
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 solution effectively reduces noise and vibration transmission between components by using a resilient decoupling element and gasket, ensuring a reliable and quiet operation, particularly suitable for internal combustion engine applications like inlet manifolds and cylinder heads.
Implementation Method 1
a decoupling element... effectively reduces noise and vibration transmission between components by using a resilient decoupling element
Implementation Method 2
The decoupling element is preferably in the form of an annular resilient element... the decoupling element comprises a centering protuberance
Data Source
AI summary
In order to provide a connecting device for connecting two components which enables two components to be connected, it is proposed that the connecting device include the following: a decoupling element; a sleeve for accommodating and guiding a connecting element, wherein the sleeve includes a base body which includes the following: a hollow cylindrical guidance section in which a connecting element is guidable; an axially limiting section which projects outwardly away from the guidance section in a radial direction; a radially outward limiting section which adjoins the axially limiting section and which together with the guidance section and the axially limiting section forms an annular seating section for accommodating the decoupling element.