Fuel Pump Hanger Assembly for Non-OEM Tank Sealing
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Solution Overview
Problem
Non-Original Equipment Manufacturer (OEM) fuel pumps face challenges in adapting to existing fuel tanks due to differences in design and size, leading to issues with installation and sealing, which can result in noise, vibration, and potential damage.
Innovation Solution
A fuel pump hanger assembly with assembly screws, clamping lugs, a top plate, and a split clamping ring is used to securely install and seal the fuel pump within the fuel tank, allowing for adjustable positioning and easy removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a non-OEM fuel pump is installed in an existing fuel tank, then the fuel pump can provide improved technical performance, but the installation and sealing become difficult due to design incompatibility
Solution Approach 1:
The mounting assembly is divided into separate components including a mounting plate, clamping lugs, and sealing elements that can be independently positioned and secured to the fuel tank, allowing flexible adaptation to different tank geometries
Solution Approach 2:
The clamping lugs are designed with adjustable positioning capabilities along the mounting plate, allowing the mounting assembly to accommodate variations in fuel tank dimensions and opening sizes while maintaining secure attachment
2Reliability
If a non-OEM fuel pump is installed in an existing fuel tank, then the fuel pump can provide improved technical performance, but noise and vibration increase due to poor sealing
Solution Approach 1:
A sealing element is introduced as an intermediary component between the mounting plate and the fuel tank surface, creating an effective seal that prevents fuel leakage and reduces noise and vibration generated by poor sealing
Solution Approach 2:
The sealing element is positioned specifically at the interface between the mounting assembly and fuel tank where sealing is critical, providing localized sealing quality that addresses noise and vibration issues without affecting other parts of the system
3Reliability
If a non-OEM fuel pump is installed in an existing fuel tank, then the fuel pump can provide improved technical performance, but the risk of damage from external sources increases due to improper installation
Solution Approach 1:
The mounting assembly is designed to be pre-positioned and secured to the fuel tank before the fuel pump is installed, creating a stable and protected mounting structure that reduces the risk of damage during and after installation
4Strength
If a secure mounting structure is used to install the fuel pump, then the fuel pump is firmly secured, but the installation and removal process becomes complex
Solution Approach 1:
The mounting assembly is segmented into discrete components (mounting plate, clamping lugs, sealing elements) that can be independently handled and assembled, simplifying the installation process while maintaining secure attachment through the coordinated action of these segments
Data Source
AI summary
Systems and methods for installing and sealing a fuel pump in a fuel tank are disclosed. In one embodiment, a system for installing and sealing a fuel pump in a fuel tank may include (1) a fuel tank with an opening in a surface thereof; and (2) a fuel pump hanger assembly, the fuel pump hanger assembly comprising; (a) a plurality of assembly screws; (b) a plurality of clamping lugs configured to thread onto the plurality of assembly screws and engage an inside surface of the fuel tank; (c) a top plate further comprising; (i) a bearing surface configured to engage an external fuel tank surface; (ii) a plurality of through holes proximate the perimeter of the top plate and perpendicular to the bearing surface; (iii) a plurality of bosses, each of the plurality of bosses adjacent to each through hole, configured to guide and position the each clamping lug; and (d) a gasket positioned between the top plate and the fuel tank.