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Fuel tank of plastic and method for the production thereof

A fuel tank, plastic technology, applied in the direction of chemical instruments and methods, arrangements combined with the fuel supply of internal combustion engines, other household appliances, etc.

Inactive Publication Date: 2013-03-06
KAUTEX TEXTRON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is because polyethylene has the property that it will flow even at room temperature if it is subjected to supporting pressure and / or tension, so that known stabilization measures in the form of supporting elements inside fuel tanks do not produce disturbing results in all cases. Satisfying result

Method used

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  • Fuel tank of plastic and method for the production thereof
  • Fuel tank of plastic and method for the production thereof
  • Fuel tank of plastic and method for the production thereof

Examples

Experimental program
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Embodiment Construction

[0035] In the attached picture ( Figure 5 ) shows a fuel tank 1 of thermoplastic material in a highly schematically enlarged form. It comprises an inner layer 2 of thermoplastic material and an outer layer 3 of fiber composite material. The outer layer 3 comprises continuous fibers, such as glass fibers or carbon fibers, in a matrix of thermosetting temperature-curable material. It (room temperature curing material) can be, for example, an epoxy resin with a room temperature activatable hardener. The outer layer 3 completely covers the fuel tank and is bonded to the inner layer-forming material over all surface areas. The inner layer 2 is a four-layer coextrusion based on HDPE, comprising an inner HDPE layer 4, a first adhesive layer 5 based on LDPE, an EVOH barrier layer 6 and a second outer adhesive layer 7, the second outer adhesive layer The agent layer 7 forms a material bond with the fiber composite outer layer 3 .

[0036] The fuel tank 1 according to the invention...

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PUM

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Abstract

The invention concerns a fuel tank of plastic with a multilayered tank wall comprising at least one inner layer of thermoplastic material and at least one outer layer of a fibre composite material. The inner layer and the outer layer are connected to each other by a material bond.

Description

technical field [0001] The invention relates to a plastic fuel tank and a manufacturing method thereof. Background technique [0002] Known plastic fuel tanks for motor vehicles are formed as fuel tanks based on polyethylene (HDPE). These fuel tanks usually have a multi-wall construction with a hydrocarbon barrier or are chemically treated (fluorinated / sulfonated) to be hydrocarbon resistant. The advantage of HDPE-based plastic fuel tanks is that they can be produced in spatially relatively complex designs and have sufficient shape retention and stability. Such fuel tanks are also sufficiently impact-resistant so that, in the event of a collision, they withstand the corresponding impact forces. Short-term deformations of the fuel tank in the event of a crash generally do not result in any permanent changes in profile. Finally, known plastic fuel tanks also retain their shape when the internal pressure increases for a short time, at least so that they return to their origi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K15/03B29C49/04B29C49/20B29C49/22B29C49/00B29C48/09B29C48/21
CPCB29C51/267B32B2260/021B32B2439/40B32B2605/00B29L2031/7172B29D22/003B29C2793/0081B29C51/12B65D1/40B29C49/22B29C47/0023B29C51/10B29C47/0054B29C2791/006B32B2260/046B29C51/14B29C51/262B60K2015/03032B60K2015/03046B32B27/08B32B2262/10B32B1/00B60K15/03177B32B27/12B32B2307/7265B29K2023/065B29C47/0066B29K2023/086B29C47/065B29C49/04B32B27/32B29K2105/08B29C48/09B29C48/0017B29C48/0022B29C48/21B29C49/20
Inventor U·卡尔施
Owner KAUTEX TEXTRON