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Fluid container and reductant supply system with such a fluid container

A fluid container, reducing agent technology, used in transportation and packaging, machines/engines, shock-sensitive items, etc., can solve the problem of high manufacturing costs and achieve the effect of preventing overheating

Active Publication Date: 2008-11-19
EICHENAUER HEIZELEMENTE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although exclusion of overheating of the vessel wall due to the PTC properties of the heating element can be achieved by using a PTC polymer as a resistance heating element, the high manufacturing cost is a disadvantage

Method used

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  • Fluid container and reductant supply system with such a fluid container
  • Fluid container and reductant supply system with such a fluid container
  • Fluid container and reductant supply system with such a fluid container

Examples

Experimental program
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Effect test

Embodiment Construction

[0016] figure 1 A schematic diagram of a fluid container 1 for a motor vehicle is shown. The fluid container 1 has a container wall 2 made of plastic and figure 1 Indicated by a longitudinal sectional view through the side wall. An electric heating element 3 is embedded in the container wall 2, said electric heating element 3 encircling the container interior. In the exemplary embodiment shown, the heating element 3 is formed by punching a meander-shaped strip from a thin steel sheet, preferably an iron alloy, especially a special steel such as V4A steel. At room temperature, the heating resulting therefrom has a resistance of at least 2 ohms, such as 2 ohms-7 ohms, especially 4.5-7 ohms. The PPTC element 4 is connected in series with the heating element 3 . At room temperature, the PPTC element 4 has a resistance of at most 0.5 ohms, preferably not more than 0.2 ohms, especially not more than 0.1 ohms.

[0017] Suitable PPTC elements are sold, for example, under the trad...

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PUM

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Abstract

The invention relates to a fluid vessel for motor vehicle. The vessel is provided with a vessel wall (2) which is made of plastic and has at least one metal resistant heating element (3). According to the invention, the vessel wall (2) is provided with at least one PPTC element (4) for preventing from being overheated. The PPTC element is connected in series with at least one heating element (3).

Description

technical field [0001] The invention relates to a heatable fluid container for a motor vehicle, which has a container wall made of plastic and which has the features stated in the preamble of claim 1 . By way of example, motor vehicles are provided with such fluid containers as storage tanks for windshield washer fluid, fuel and urea solutions or as filter housings for fluid filters or as delivery components, especially for urea solutions. The invention also relates to a fluid container for a reducing agent supply system and a reducing agent supply system for an exhaust gas purification catalytic converter, which are installed as standard equipment in a motor vehicle. Background technique [0002] As an example, such a fluid container is disclosed in DE 10 2005 03 7201 A1. The fluid container described therein is a filter cup containing a filter material for filtering urea solution. The container is made of plastic. Embedded in the bottom of the container are heating wire...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D81/18B65D25/02B65D85/00F01N3/10
CPCF01N2610/02F01N2610/10Y02T10/24F01N2610/1426F01N3/2066F01N2610/1406Y02A50/20Y02T10/12
Inventor C·哈夫纳
Owner EICHENAUER HEIZELEMENTE
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