Half-Shell Support Element for Vehicle Pressure Tank Stiffening

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Solution Overview

Problem

Existing motor vehicle designs with pressure tanks require significant installation space, are heavy, and costly, while lacking sufficient rigidity and structural reinforcement.

Innovation Solution

A motor vehicle design featuring a half-shell support element that follows the contour of the pressure tank, providing both support and structural reinforcement, with an elastic layer to secure the tank and reduce weight and space requirements, and potentially serving as an underrun protection and heat shielding component.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Weight of moving object

If conventional straps or separate support structures are used to fasten pressure tanks, then the pressure tank can be secured, but the installation space increases and the vehicle weight increases

Engineering Contradiction:
Improvevehicle weightVSAvoidpressure tank securing
Core Design Contradiction:
Weight of moving objectVSReliability

Solution Approach 1:

The support element combines multiple functions into a single integrated component: it supports the pressure tank, secures it through the elastic layer, provides body stiffening, and serves as underrun protection. This merging eliminates the need for separate straps, support structures, and protective components, thereby reducing vehicle weight while maintaining security and protection.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The half-shell support element is designed as a multi-functional component that simultaneously performs support, securing, stiffening, and protection functions. This universal design allows a single component to replace multiple separate parts, reducing overall system weight and installation space while ensuring reliable pressure tank securing.

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

2Ease of manufacture

If multiple separate components are used for pressure tank support and protection, then functional requirements are met, but the number of parts increases and manufacturing cost increases

Engineering Contradiction:
Improvemanufacturing costVSAvoidnumber of components
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The invention merges support, securing, stiffening, and protection functions into a single half-shell support element, reducing the number of components from multiple separate parts to one integrated structure. This simplification directly reduces manufacturing cost and assembly complexity while meeting all functional requirements.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The support element is designed as a universal component that performs multiple functions simultaneously: supporting the pressure tank, securing it via the elastic layer, stiffening the vehicle body, and providing underrun protection. This multi-functionality eliminates the need for multiple separate components, reducing both device complexity and manufacturing cost.

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

3Volume of moving object

If the support element is designed to follow the contour of the pressure tank, then installation space is minimized, but manufacturing precision requirements increase

Engineering Contradiction:
Improveinstallation spaceVSAvoidcontour accuracy
Core Design Contradiction:
Volume of moving objectVSManufacturing precision

Solution Approach 1:

The elastic layer in the form of a band running over the entire circumference of the pressure tank provides a flexible securing mechanism that adapts to the pressure tank's contour without requiring the support element itself to be manufactured with high precision. The elasticity of the band compensates for minor contour variations, minimizing installation space while maintaining secure attachment.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The support element is designed with specific geometric parameters (half-shell configuration following the pressure tank contour) that optimize installation space. By carefully selecting these parameters, the design achieves space minimization while keeping manufacturing precision requirements within standard capabilities through the use of the elastic securing layer.

Inventive Principle:
Principle #35Parameter changes

4Strength

If the support element is designed to provide body stiffening, then vehicle rigidity increases, but the support element requires stronger (heavier) materials

Engineering Contradiction:
Improvebody rigidityVSAvoidsupport element weight
Core Design Contradiction:
StrengthVSWeight of moving object

Solution Approach 1:

The support element merges the functions of pressure tank support and body stiffening into a single component. By integrating the stiffening function into the existing support structure, the design achieves enhanced body rigidity without adding separate reinforcement components, thereby avoiding additional weight from redundant structural elements.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The half-shell support element is designed as a multi-functional component that simultaneously supports the pressure tank and provides body stiffening. This universal design allows the same component to fulfill multiple roles, achieving enhanced vehicle rigidity without requiring additional heavier materials or separate reinforcement structures.

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

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

This design minimizes installation space, reduces weight and cost, enhances vehicle rigidity, and eliminates the need for separate components, achieving a lightweight, high-strength, and cost-effective pressure tank support system.

Implementation Method 1

an elastic layer is arranged between the support element and the pressure tank, the elastic layer being formed by a band running over the entire circumference of the pressure tank. The elastic layer can hold the pressure tank in place.

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP2915687B1Motor vehicle with pressurised tank and supporting element
Publication Date: 2017.08.09 MAGNA STEYR ENG AG & CO
  • EP2915687B1 patent drawingFigure 1
  • EP2915687B1 patent drawingFigure 2
  • EP2915687B1 patent drawingFigure 3

AI summary

A motor vehicle comprising a pressure tank (1) and a support element (2), wherein the support element (2) supports the pressure tank (1), wherein the support element (2) is designed as a lower half-shell, so that the support element (2) at least partially surrounds the underside of the pressure tank (1), wherein the support element (2) follows the contour of the pressure tank (1), wherein the support element (2) is attached to the body (3) of the motor vehicle, so that the body (3) is stiffened by the support element (2).