Dual-Part Diesel Filter Support Device with Metal Strap

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Solution Overview

Problem

Existing fuel filter support devices for motor vehicles face challenges in providing precise positioning and crash resistance while maintaining cost-effectiveness and facilitating easy assembly and disassembly for after-sales service.

Innovation Solution

A dual-part support device comprising a flexible plastic housing for precise positioning and a metal strap with a toggle-type fastening system for enhanced crash resistance, allowing the fuel filter to be securely attached to the vehicle.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a single integrated support device is used for fuel filter mounting, then positioning precision and crash resistance can be achieved, but manufacturing cost and device complexity increase

Engineering Contradiction:
Improvecrash resistanceVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The support device is divided into two distinct parts: a first part (mounting bracket) made of plastic material for positioning the fuel filter, and a second part (mounting strap) made of metal material for attaching to the vehicle. This segmentation allows each part to be optimized for its specific function while reducing overall complexity and cost compared to a single integrated structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention uses composite construction by combining plastic material for the first part and metal material for the second part. This allows the plastic positioning part to provide precision at lower cost while the metal strap provides crash resistance, avoiding the need for a fully metal integrated structure.

Inventive Principle:
Principle #40Composite materials

2Manufacturing precision

If traditional fastening means with high deformation resistance are used, then structural integrity is maintained, but positioning precision and cost-effectiveness decrease

Engineering Contradiction:
Improvepositioning precisionVSAvoidcost-effectiveness
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The mounting system is segmented into a positioning function (first part) and a fastening function (second part). The first part made of plastic provides precise positioning of the fuel filter at lower manufacturing cost, while the second metal part handles the fastening requirements.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different parts of the mounting device have different material properties optimized for their local function: the first part uses plastic material optimized for positioning precision and cost-effectiveness, while the second part uses metal material optimized for structural strength and crash resistance.

Inventive Principle:
Principle #3Local quality

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

The solution enables precise positioning of the fuel filter at a lower cost, provides significant resistance during crashes, and facilitates easy assembly and disassembly for maintenance, ensuring the integrity of the fuel system.

Implementation Method 1

comprising a tightening lever to achieve a toggle-type fastening

Methodology Applied
Scientific EffectMechanical Advantage: Mechanical Advantage

Data Source

PatentEP3213804B1Support device for diesel filter of a motor vehicle
Publication Date: 2020.04.22 RENAULT SA
  • EP3213804B1 patent drawingFigure 1~2
  • EP3213804B1 patent drawingFigure 3~4

AI summary

Support device (1) for a fuel filter of a motor vehicle, comprising a first part (10) forming a housing for receiving a fuel filter and comprising means for positioning a fuel filter, characterized in that it comprises a second part (20) made of metal comprising a connecting element allowing the support device (1) to be fixed on a motor vehicle.