Modular Fuel Tank with Universal Passages

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Solution Overview

Problem

The complexity of motor vehicle fuel tank designs due to varying pollution control standards and engine types leads to difficulties in simplification, installation constraints, and supply chain issues, resulting in a lack of centralized information and increased production risks.

Innovation Solution

A modular fuel tank design with a adaptable casing and passages for routing and holding pipes and electrical harnesses, compatible with multiple engine types, including gasoline and diesel engines, allowing for interchangeable components and diverse functional modules, ensuring compatibility and reducing installation volume and supply chain bottlenecks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a fuel tank design is customized for each engine type and pollution standard, then compatibility with specific engines is improved, but device complexity and manufacturing variety increase

Engineering Contradiction:
Improvecompatibility with engine typesVSAvoidtank design variety
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The fuel tank is designed as a universal platform that can accommodate multiple engine types (gasoline, diesel, hybrid) and pollution standards (Euro 5, 6, 6.1, 6.2) through standardized mounting points, passage configurations, and attachment interfaces. The tank shell includes pre-defined passages for routing pipes and electrical harnesses that can be activated or deactivated depending on the specific engine application, eliminating the need for completely different tank designs for each engine variant.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The fuel tank system is divided into modular components including the tank shell, functional modules (vapor absorption device, heating unit, filters), and attachment elements. This segmentation allows different combinations of modules to be attached to the same basic tank structure, enabling adaptation to various engine requirements without redesigning the entire tank system.

Inventive Principle:
Principle #1Segmentation

2Ease of operation

If multiple specialized tank designs are maintained for different engine types, then specific installation requirements are met, but ease of manufacture and supply chain simplicity deteriorate

Engineering Contradiction:
Improveinstallation compatibilityVSAvoidproduction complexity
Core Design Contradiction:
Ease of operationVSEase of manufacture

Solution Approach 1:

A single standardized tank design serves multiple engine types and market requirements, allowing manufacturers to produce one base tank model that can be configured for different applications through selective attachment of functional modules and routing of passages. This universality simplifies manufacturing processes, inventory management, and supply chain operations while maintaining installation compatibility across various vehicle platforms.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The tank shell is pre-equipped with standardized mounting points, pre-formed passages for pipe and harness routing, and attachment interfaces for functional modules during the manufacturing process. This preliminary preparation enables rapid and straightforward installation in different vehicle applications without requiring complex post-manufacturing modifications or custom fabrication steps.

Inventive Principle:
Principle #10Preliminary action

3Productivity

If passage routes are optimized for specific engine types, then installation efficiency is improved, but adaptability to other engine types decreases

Engineering Contradiction:
Improveinstallation efficiencyVSAvoidengine type compatibility
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The passage system is designed with dynamic configurability, where multiple passage routes are pre-formed in the tank shell and can be selectively activated or deactivated depending on the specific engine application. This allows the same tank structure to provide optimized passage routing for different engine types, maintaining installation efficiency while achieving broad adaptability across gasoline, diesel, and hybrid powertrains.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP3883803B1Modular fuel tank for motor vehicle
Publication Date: 2022.12.07 PSA AUTOMOBILES SA
  • EP3883803B1 patent drawingFigure 1
  • EP3883803B1 patent drawingFigure 2a~2c
  • EP3883803B1 patent drawingFigure 2d~3b

AI summary

The invention relates mainly to a fuel tank (10) that can be adapted to several types of motor vehicle engines comprising: - a casing (11) defining a fuel filling space, - a fuel filler pipe (12), and - a gauge/pump module (13), characterised in that the shape of the casing (11) is designed to cover different types of petrol and diesel engines, and in that the casing (11) comprises passages (15) for routing and holding pipes and/or electrical harnesses, the passages (15) formed in advance in the casing (11) being capable of covering routes for pipes and/or electrical harnesses of different types of petrol and diesel engines, such that some passages (15) used for the pipes and/or electrical harnesses of a given engine are present for an engine of another type but not used.