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Method for producing a liquid container, liquid container for a motor vehicle and injection molding tool

A liquid container, injection molding technology, used in household appliances, other household appliances, applications, etc., can solve the problems of incomplete layer formation, layer thickness and layer distribution unevenness, and inability to guarantee complete layer formation, etc., to save The effect of material cost

Active Publication Date: 2019-06-04
KAUTEX TEXTRON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, a disadvantage when injection molding multilayer components with two or more plastic parts is that inhomogeneities in layer thickness and layer distribution can occur
In particular in edge regions spaced apart from the gate, irregularities in the flow path and the flow path length of one or more plastic components can lead to incomplete layer formation, so that a complete layer such as a barrier layer cannot be guaranteed form

Method used

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  • Method for producing a liquid container, liquid container for a motor vehicle and injection molding tool
  • Method for producing a liquid container, liquid container for a motor vehicle and injection molding tool
  • Method for producing a liquid container, liquid container for a motor vehicle and injection molding tool

Examples

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Embodiment Construction

[0107] figure 1 A liquid container 2 for a motor vehicle (not shown), wherein this is a fuel tank 2 , is shown. The fuel tank 2 consists of two half shells 4 , 6 , a first shell 4 and a second shell 6 , which are connected to one another in the region of a plane E.

[0108] The liquid container 2 has a triple wall structure. The barrier layer 8 is surrounded on both sides by an inner covering layer 10 and an outer covering layer 12 .

[0109] The barrier layer 8 is formed over the entire surface of the wall structure. exist figure 1 In the cross-section shown, the cavity volume 14 is provided for storing fuel and is completely surrounded by the barrier layer 8 . The barrier layer 8 constitutes a diffusion barrier in order to minimize diffusion-induced emissions during fuel storage.

[0110] The wall thickness t of the housing 4 , 6 of the liquid container 2 is 3 mm+ / −1 mm.

[0111] The liquid container 2 is produced by the method according to the present invention, which...

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Abstract

The invention relates to a method for producing a liquid container (2) for a motor vehicle, which is assembled from at least two shells (4, 6). Furthermore, the invention relates to a liquid container(2) for a motor vehicle.

Description

technical field [0001] The invention relates to a method for producing a liquid container for a motor vehicle, a liquid container for a motor vehicle and an injection molding tool. Background technique [0002] In modern motor vehicles, many different working fluids are stored in fluid containers or tanks (tanks). This can be, for example, fuel, engine oil, urea solution for selective catalytic reduction, or also cleaning fluid for headlights or the windows of the passenger compartment. [0003] In order to minimize the impact of motor vehicles on the environment, substances that pollute the environment, such as fuel used to drive the vehicle, need to be reliably absorbed and encapsulated in liquid containers. In particular, for lightweight plastic tanks used to store fuel, it is important to keep emissions due to diffusion through the plastic walls of the tank low. For this purpose, the plastic walls of such tanks are constructed in multiple layers and have a barrier laye...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/16B29C45/26
CPCB29C45/1642B29C45/1643B29C45/2669B29L2031/7172B29C2045/1664B29C2045/167B29C2045/2671B60K2015/03032B60K15/03177B60K2015/03046B29C45/164B60K2015/03493
Inventor U·卡尔施
Owner KAUTEX TEXTRON
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