Fuel Pump Assembly Filter Exchange via External Intermediate Component
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Solution Overview
Problem
Existing fuel pump assemblies require complex disassembly or hose detachment for filter exchange, leading to increased costs and operational difficulties.
Innovation Solution
The fuel pump assembly features a filter positioned on an intermediate component outside the fuel tank, with a holding element and sealing elements to facilitate easy filter exchange and ensure leaktightness, allowing for standardized production and reduced costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the filter is arranged inside the fuel tank on the fuel pump, then the filter can be positioned close to the fuel pump, but the entire fuel assembly must be disassembled to exchange the filter
Solution Approach 1:
The filter is extracted from the fuel tank interior and positioned on the exterior of the fuel tank on the intermediate component. This allows the filter to be accessed and exchanged independently without disassembling the fuel pump assembly or removing components from inside the fuel tank.
Solution Approach 2:
The fuel pump assembly is segmented into distinct components: the fuel pump inside the fuel tank, the intermediate component on the exterior, and the filter on the intermediate component. This segmentation allows independent access to the filter while maintaining the integrity of the fuel pump assembly.
2Ease of operation
If the filter is arranged outside the fuel tank with a hose connection, then the filter is more accessible, but hose connections must be detached for filter exchange
Solution Approach 1:
The filter is merged with the intermediate component through a holding element that provides both mechanical support and sealing. This integration eliminates the need for separate hose connections while maintaining filter accessibility on the exterior of the fuel tank.
Solution Approach 2:
The intermediate component serves as an intermediary between the fuel tank and the filter. It provides a mounting structure with a holding element that secures the filter in place without requiring hose detachments, simplifying the connection while maintaining accessibility.
3Ease of repair
If the filter is positioned on the intermediate component outside the fuel tank, then filter exchange is simplified, but additional components are required
Solution Approach 1:
The intermediate component performs multiple functions: it serves as a mounting structure for the filter, provides sealing through the holding element, and acts as a connection point between the fuel tank and the filter. This multi-functionality reduces the need for additional separate components.
Solution Approach 2:
The filter is nested within the holding element of the intermediate component, which itself is attached to the fuel tank. This nested arrangement consolidates multiple functions into a compact structure, minimizing the number of separate parts while maintaining ease of filter exchange.
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 filter fitting and removal, reduces costs, and ensures reliable fuel delivery without leaks, enabling efficient and cost-effective maintenance.
Implementation Method 1
a filter (5), which is arranged in a filter chamber (6)
Implementation Method 2
The latching hook can be formed on the holding element so as to encircle the latter, wherein the latching hook is arranged in such a way that it can be latched into a groove formed around the outer circumference of the intermediate component
Implementation Method 3
A first sealing element is advantageously arranged between the filter and the intermediate component. Thus, leaktightness between the filter and the intermediate component is ensured
Data Source
AI summary
The invention relates to a fuel pump assembly, which comprises a fuel pump (2), a fuel tank (3), in which the fuel pump (2) is at least partially arranged, an intermediate component (4), which is arranged on the outside of the fuel tank (3) and has a fuel connection to the fuel tank (3), and a filter (5), which is arranged in a filter chamber (6) and is arranged on the outside of the intermediate component (4) or the fuel pump (2). According to the invention, a fuel flow flows from an interior (30) of the fuel tank (3) through a first opening (40) of the intermediate component (4) outward into the filter chamber (6) and from the filter chamber (6) through the filter (5) and through a second opening (41) of the intermediate component (4) to an inlet (20) of the fuel pump (2).