Integral Fuel Pump Housing Bracket for Secure Low-Noise Mounting
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Solution Overview
Problem
Existing fuel pump installations in vehicle fuel tanks require separate brackets for vibration damping and fastening, increasing complexity and costs.
Innovation Solution
A single-piece plastic fuel pump housing with an integral bracket eliminates the need for a separate bracket by incorporating a fastening flange and holding arms or fastening flanges for secure attachment to the fuel tank wall, providing vibration damping and noise reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate bracket is used for fastening the fuel pump to the fuel tank wall, then the fuel pump can be securely fastened and vibration damping is provided, but the number of parts increases and manufacturing costs increase
Solution Approach 1:
The bracket is merged with the fuel pump housing to form a single integral component. The housing is formed as a single piece with an integrated bracket that includes holding arms and fastening flanges, eliminating the need for a separate bracket component while maintaining secure fastening functionality.
Solution Approach 2:
The fuel pump housing serves multiple functions: it encloses the pump components, provides structural support, and integrates the bracket function for mounting to the fuel tank wall. The integral bracket structure combines fastening and vibration damping functions within the housing itself.
2Reliability
If a separate bracket is used for fastening the fuel pump, then secure mounting is achieved, but manufacturing costs increase due to additional parts
Solution Approach 1:
The bracket functionality is combined with the fuel pump housing into a single molded plastic component. This integration reduces the total part count and eliminates the need for separate bracket manufacturing, assembly, and fastening operations, thereby reducing manufacturing costs while maintaining mounting security.
Solution Approach 2:
The integral bracket and housing are formed from plastic material that provides both structural strength for secure mounting and inherent vibration damping properties. The plastic material serves multiple functional requirements simultaneously.
3Object-affected harmful factors
If a separate bracket is used for vibration damping, then noise reduction is achieved, but the number of components increases
Solution Approach 1:
The vibration damping function is merged into the fuel pump housing itself through the integral bracket structure. The plastic housing and integrated bracket work together as a unified vibration-damping system, eliminating the need for separate vibration isolation components while maintaining noise reduction effectiveness.
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
Simplifies the installation process, reduces parts, and saves costs by integrating the bracket into the fuel pump housing while maintaining effective vibration damping and noise reduction.
Implementation Method 1
the bracket damps the vibrations generated by the fuel pump to reduce undesired noise generation
Implementation Method 2
the bracket is based on a certain degree of elasticity that permits compensation movements
Data Source
AI summary
A fuel pump includes: an electric motor; a pump stage drivable by the electric motor; a fuel pump housing configured to accommodate the electric motor and the pump stage; and a bracket configured to fasten the fuel pump to a wall. The fuel pump housing includes a plastic first housing part configured to accommodate at least one selected from the group of the electric motor and the pump stage. The first housing part is configured as a single piece with the bracket, the bracket being integral with the first housing part.