Elastomer Pump Holder Structure for Vehicle Vibration Decoupling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Designing units, such as cooling circuit pumps for motor vehicles, faces challenges in fatigue strength due to dynamic loads, particularly shaking loads, which are not effectively addressed by rigid mounting, leading to high excitation vibrations.
Innovation Solution
A holding device with an elastomer holder designed as an elongated element, featuring an insert that connects the ends to form a surrounding element, providing damping and decoupling capabilities, and produced through extrusion for cost reduction, with cavities or openings enhancing decoupling properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If rigid mounting is used to attach the unit to the motor vehicle, then the structural stability is improved, but the shaking loads and excitation vibrations increase significantly
Solution Approach 1:
An elastomer holder is introduced as an intermediary component between the unit and the mounting structure. This elastomer holder absorbs and dampens shaking loads and excitation vibrations while maintaining structural stability, resolving the contradiction between rigidity and vibration damping.
Solution Approach 2:
The holding device combines elastomer material with insert elements to create a composite structure. The elastomer provides vibration damping properties while the inserts provide structural strength and mounting capability, achieving both stability and shock absorption.
2Strength
If the elastomer holder is produced by injection molding as a closed element, then the structural integrity is improved, but the manufacturing cost and complexity increase
Solution Approach 1:
The holding device is segmented into an elastomer holder and separate insert elements. The elastomer holder can be produced by cost-effective extrusion rather than complex injection molding, while the inserts provide the necessary structural integrity and connection features.
Solution Approach 2:
The manufacturing process is changed from injection molding to extrusion for the elastomer holder. This parameter change in the manufacturing process significantly reduces production cost and complexity while maintaining the functional integrity of the holder through the addition of insert elements.
3Strength
If the elastomer holder is designed as a solid element, then the strength is improved, but the material usage and production cost increase
Solution Approach 1:
The elastomer holder incorporates cavities or openings that create a porous-like structure. This reduces material usage and production cost while the strategically placed inserts provide the necessary strength and structural support at critical locations.
Solution Approach 2:
Instead of making the entire holder solid, strength is concentrated at specific locations where inserts are placed. The elastomer material is used efficiently in areas requiring flexibility and damping, while inserts provide localized structural reinforcement, optimizing the balance between strength and material usage.
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 absorbs vibrations and shaking loads, reducing material usage and costs while ensuring secure attachment of units to motor vehicles, thereby improving fatigue strength and operational stability.
Implementation Method 1
an elastomer holder for receiving the unit, wherein the elastomer holder is designed as an elongated element
Implementation Method 2
the holding devices can optimally absorb vibrations or shaking loads at the installation site as a damping and decoupling element
Implementation Method 3
the elastomer holder according to the invention can be produced by extrusion
Data Source
Figure 1~2
Figure 3~4
AI summary
The invention relates to a holder device (10) for fastening an apparatus (12), in particular a pump, to a motor vehicle, comprising an elastomer holder (14) for receiving the apparatus (12). According to the invention, the elastomer holder (14) is formed as an elongate element and the ends (26) thereof are connected to one another, in particular in a frictionally engaged and/or form-fitting and/or integrally bonded manner, by a holding means to form an encompassing element. The invention further relates to a method for producing a holding device according to the invention.