Motorcycle Fuel Tank with Integrated Injection-Molded Compartments

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing fuel tanks for motor vehicles, particularly motorcycles, are limited in shaping flexibility, integration of additional components, and surface quality, making them unsuitable for use as visible parts and lacking additional functions beyond fuel storage.

Innovation Solution

A fuel tank design featuring two injection-molded partial bodies with physically separated receiving chambers, including a fuel chamber and additional compartments like air filters or storage, integrated with reinforcing elements for enhanced rigidity and strength, allowing for the integration of various components and improved manufacturing efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If blow molding or rotational molding is used to produce fuel tanks, then production is possible, but shaping flexibility is extremely limited and surface quality is inadequate for visible parts

Engineering Contradiction:
ImprovemanufacturabilityVSAvoidsurface quality
Core Design Contradiction:
Ease of manufactureVSManufacturing precision

Solution Approach 1:

The patent replaces traditional mechanical molding methods (blow molding, rotational molding) with injection molding technology. This substitution enables precise shaping and high surface quality suitable for visible parts while maintaining manufacturing efficiency. The injection molding process allows for complex geometries and integrated components that were not achievable with conventional methods.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Productivity

If traditional molding methods are used, then fuel tanks can be produced, but integration of further components is possible only to a very limited extent

Engineering Contradiction:
Improvemanufacturing efficiencyVSAvoidintegration capability
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The patent combines multiple components and functions into a single integrated fuel tank structure produced by injection molding. The tank can incorporate mounting brackets, fluid conduits, reinforcement elements, and multiple receiving chambers all in one manufacturing process. This merging approach maintains high productivity while dramatically improving integration capability compared to traditional multi-step assembly methods.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The fuel tank is designed as a multi-functional component that not only stores fuel but also provides structural support, mounting points for other components, fluid management pathways, and reinforcement structures. This universal design allows a single part to perform multiple functions that previously required separate components, enhancing adaptability without compromising manufacturing efficiency.

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

3Adaptability or versatility

If fuel tanks are designed with additional functions and integrated components, then versatility improves, but device complexity increases

Engineering Contradiction:
Improveadditional functionsVSAvoidstructural complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent divides the fuel tank into multiple receiving chambers (first receiving chamber for fuel, second receiving chamber for other purposes) separated by internal partitions. This segmentation allows different functions to be housed within a single integrated structure, increasing versatility while managing complexity through organized compartmentalization rather than multiple separate components.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The design embeds additional components and structures within the fuel tank walls and chambers. Reinforcement elements are integrated into the tank walls, mounting points are formed as part of the tank structure, and multiple receiving chambers are nested within the overall tank geometry. This nesting approach adds functionality while minimizing increases in external dimensions and overall structural complexity.

Inventive Principle:
Principle #7Nested doll (Nesting)

Data Source

PatentUS11478993B2Fuel tank for a motor vehicle, and method for producing a fuel tank
Publication Date: 2022.10.25 BAYERISCHE MOTOREN WERKE AG
  • US11478993B2 patent drawing

AI summary

A fuel tank for a motor vehicle includes at least two parts that are joined together, each part being formed by an injection moulding process. The two parts form a receiving chamber for receiving fuel and form at least one other receiving chamber, the receiving chamber and the other receiving chamber being spatially separated by a portion of at least one part.