Motor Vehicle Pump Mounting With Vibration-Decoupling Body
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Solution Overview
Problem
Existing motor vehicle pump arrangements face challenges in providing reliable vibration-decoupling and simple assembly, often requiring complex fixation methods that can impair vibrational-decoupling properties and complicate the assembly process.
Innovation Solution
A motor vehicle pump arrangement featuring a ring-shaped vibration-decoupling body made of a soft, elastic material, such as rubber or silicone, and a clip retainer with flexible retainer arms that axially retain the pumping unit, allowing for efficient vibration-decoupling and simplified assembly without additional fixation elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the decoupling body is made of relatively flexible material to provide efficient vibrational decoupling, then vibration suppression is improved, but the force-locked connection can only support relatively limited axial forces
Solution Approach 1:
The mounting arrangement is segmented into three functional components: the flexible decoupling body for vibration suppression, the clip retainer for axial retention, and the support protrusions for axial support. This segmentation allows each component to optimize its specific function without compromising the others.
Solution Approach 2:
The clip retainer and support protrusions are combined to work together with the decoupling body, creating a composite mounting system that achieves both vibration decoupling and sufficient axial force support through the协同 effect of multiple elements.
2Ease of manufacture
If the decoupling body is mounted to a completely assembled pumping unit during assembly, then the assembly process becomes complex, but the mounting can be integrated into the pumping unit assembly process
Solution Approach 1:
The decoupling body is pre-mounted to the pumping unit housing before final assembly, and the clip retainer is designed to engage with pre-formed support protrusions. This preliminary preparation simplifies the final assembly step while maintaining integration with the pumping unit assembly process.
Solution Approach 2:
The clip retainer with its flexible arms automatically engages with the support protrusions when the decoupling body is positioned, requiring no additional fixation elements or complex mounting operations. The structure itself provides the retention function.
3Reliability
If screw joints or adhesive bonding are used to fix the decoupling body to the pumping unit, then the decoupling body can be securely mounted, but additional fixation elements and complex mounting processes are required
Solution Approach 1:
The traditional mechanical fixation methods (screw joints, adhesive bonding) are replaced with a form-locked mechanical engagement system consisting of the clip retainer and support protrusions. This substitution eliminates the need for additional fixation elements while maintaining secure mounting.
Solution Approach 2:
The clip retainer is designed with flexible arms that can elastically deform during assembly and then retain the decoupling body through continuous contact pressure, providing reliable mounting without rigid mechanical fasteners.
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 suppresses vibrations and noise, enhancing the reliability and longevity of the pumping unit while simplifying the assembly process, ensuring robust and efficient vibration-decoupling between the motor vehicle and the pumping unit.
Implementation Method 1
The vibration-decoupling body is made of a relatively flexible material so that vibrations of the motor vehicle mounting structure, in particular caused by the engine of the motor vehicle, are not, or at least only in significantly suppressed manner, transferred into the pumping unit
Implementation Method 2
The vibration-decoupling body is made of a relatively flexible material
Implementation Method 3
a clip retainer with flexible retainer arms that axially retain the pumping unit
Data Source
Figure 1~2
Figure 3
AI summary
Motor vehicle pump arrangement and mounting arrangement for a motor vehicle pump arrangement The invention is directed to a motor vehicle pump arrangement (10), with a pumping unit (12) and amounting arrangement (14) for mounting the pumping unit (12) to a corresponding motor vehicle mounting structure (15), the mounting arrangement (14) comprising -a ring-shaped vibration-decoupling body(28) radially surrounding and supporting the pumping unit (12) and being attachable to the motor vehicle mounting structure (15), -a clip retainer (30) being attached to the vibration-decoupling body (28) and axially retaining the pumping unit (12), the clip retainer (30) comprising, • a retainer frame(50) extending in a transversal pumping unit· plane and being axially supported by the vibration-decoupling body (28), and • at least two retainer arms (52) axially projecting from the retainer frame (50),engaging a corresponding engagement step (64) of the pumping unit (12) and axially retaining the pumping unit (12). The proposed motor vehicle pump arrangement(10)provides a reliable vibration-decoupling mounting of the pumping unit (12) and can be assembled in a simple way.