Liquid Pump Contact Body With Damping Projections for Quiet Mounting
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Solution Overview
Problem
Existing liquid pumps in motor vehicles face challenges in secure and stable mounting, with rigid holders transmitting vibrations and noise, and existing damping elements complicate assembly and increase production costs.
Innovation Solution
A contact body comprising a damping element with projections and a target body, allowing for secure, vibration-resistant mounting of liquid pumps through form- and force-fit receiving contours, with adaptable designs for various vehicle types, minimizing assembly effort and costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If rigid holders are used to mount liquid pumps, then structural strength and stability are improved, but vibration transmission and noise increase
Solution Approach 1:
The patent employs a damping element with elastic properties (flexible shell/film principle) that absorbs vibrations and reduces noise transmission while maintaining structural integrity. The elastic damping element deforms under vibration loads, dissipating energy and preventing rigid transmission of vibrations to the vehicle body, thus resolving the contradiction between strength and vibration isolation.
Solution Approach 2:
The mounting system combines rigid components (holder, target body) with elastic damping material in a composite structure. This composite design allows the rigid parts to provide structural strength and positioning, while the elastic damping element absorbs vibrations and reduces noise, simultaneously achieving both strength and vibration isolation requirements.
2Object-affected harmful factors
If damping elements are used to reduce vibrations, then vibration transmission and noise are reduced, but assembly complexity and production costs increase
Solution Approach 1:
The patent merges the damping element with the holder as an integrated assembly, where the elastic damping element is incorporated directly into the holder structure. This combination simplifies assembly by reducing the number of separate components and fastening operations, while still providing effective vibration damping through the elastic material.
Solution Approach 2:
The elastic damping element provides self-aligning and self-centering properties that facilitate automatic positioning during assembly. The flexible nature of the damping element allows it to deform and accommodate minor misalignments, enabling simple insertion and mounting without complex adjustment procedures, thus reducing assembly complexity.
3Object-affected harmful factors
If damping elements are used to reduce vibrations, then vibration transmission and noise are reduced, but secure and stable mounting becomes more difficult
Solution Approach 1:
The damping element is pre-formed with specific geometric features (protrusions, recesses, receiving contours) that enable predetermined positioning and secure connection to the target body. This preliminary design of connection features ensures stable mounting while maintaining the vibration-damping properties of the elastic material throughout the service life of the assembly.
Solution Approach 2:
The composite structure combines rigid connection elements (protrusions, recesses) with elastic damping material. The rigid features provide secure mechanical interlocking and stable mounting, while the elastic damping element maintains continuous contact and damping force, ensuring both secure mounting and vibration reduction over time.
4Reliability
If multiple projections with receiving contours are added to the damping element, then secure connection to target body is improved, but manufacturing complexity increases
Solution Approach 1:
The receiving contours on the projections are designed with standardized geometric features that can accommodate various target body configurations. This universal design allows the same damping element with its projection-receiving contour structure to be used across different applications and vehicle types, simplifying manufacturing by using a common design rather than custom-designed components for each application.
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
Enables stable and secure mounting of liquid pumps with reduced vibration transmission and noise, facilitating easy assembly and cost-effective production.
Implementation Method 1
Elastic damping elements are preferably used as such holders to minimize vibrations transmitted to the pump
Implementation Method 2
damping element having an inner surface within which a liquid pump can be held
Data Source
AI summary
A contact body for at least one liquid pump in motor vehicles, comprising a damping element which has an inner surface, within which a liquid pump can be held, an outer surface, and a target body, wherein the damping element has on its outer surface at least one projection with at least one receiving contour for the target body, and wherein the at least one projection rests flat on a region of the target body.