Modular Fuel Pump Hanger Assembly for Dual Pump Installation
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Solution Overview
Problem
Existing fuel pump systems often struggle to accommodate two fuel pumps within the limited opening of a fuel tank, especially when the combined diameter of the pumps exceeds the tank opening.
Innovation Solution
A modular fuel pump hanger assembly is designed to securely hold two fuel pumps within the fuel tank, featuring a self-locating mechanism that allows for assembly through a small opening, with all parts held together using bolts and dowel pins.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If two fuel pumps are installed to meet increased fuel demand, then fuel supply capacity is improved, but the combined diameter of the pumps exceeds the tank opening size
Solution Approach 1:
The hanger assembly is divided into multiple separate components including a first hanger portion, a second hanger portion, and a third hanger portion that can be independently inserted through the tank opening. This segmentation allows each component to pass through the limited opening space separately, then be assembled together inside the tank to form the complete support structure for two fuel pumps.
Solution Approach 2:
The modular hanger components are designed to nest together inside the fuel tank, with the first, second, and third portions interlocking to form the complete hanger assembly. This nesting approach enables the components to be stored and inserted in a compact manner through the small opening, then expanded to their full functional configuration inside the tank.
2Ease of operation
If a modular design with multiple components is used to fit through the small opening, then ease of installation is improved, but device complexity increases
Solution Approach 1:
The hanger components are pre-configured with locating features, mounting provisions, and connection interfaces that guide their assembly in a predetermined sequence. This preliminary design of the component geometry and interface features enables the installer to simply follow the predetermined assembly path without requiring complex alignment procedures or specialized tools.
Solution Approach 2:
The hanger assembly incorporates self-locating features such as positioning protrusions, recesses, and alignment guides that automatically guide the components into their correct relative positions during assembly. This self-service mechanism reduces the skill level and time required for installation, as the components essentially guide themselves into the proper configuration without requiring complex external alignment procedures.
Data Source
AI summary
A fuel pump hanger assembly configured to fit two fuel pumps into the small opening of a fuel tank, even if the diameter of both fuel pumps combined is larger than the opening of the fuel tank. The fuel pumps may be inserted into the fuel tank one at a time, then assembled together through the small opening of the fuel tank. The parts self-locate inside the fuel tank and the assembly held together with bolts. This self-locating feature facilitates the assembly of all parts inside the small opening of the fuel tank. The hanger holds two common fuel pumps and comes with fittings for interfacing to the car's fuel and vapor lines.