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Filler neck assembly and method for producing same

A filling port and assembly technology, applied in the field of vehicle liquid storage tank assembly, can solve the problems of not being particularly easy to produce, not providing a sufficiently compact solution, etc., to avoid labor-intensive effects

Active Publication Date: 2015-09-30
PLASTIC OMNIUM ADVANCED INNOVATION & RES SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the arrangement disclosed in this application does not provide a sufficiently compact solution, given the scarcity of space available on the vehicle, and is not particularly easy to produce

Method used

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  • Filler neck assembly and method for producing same
  • Filler neck assembly and method for producing same
  • Filler neck assembly and method for producing same

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Embodiment Construction

[0037] As used herein, the term "urea" refers to any solution (generally an aqueous solution) comprising urea. This includes water / urea co-crystal solutions, which have quality standards: for example, according to standard DIN 70070, in In the case of a solution (commercial urea solution), the urea content is between 31.8% and 33.2% (by weight) (i.e. 32.5% + / - 0.7% by weight), therefore, the amount of ammonia available is between 18.0% and 18.8% between. The term also includes the urea / ammonium formate mixture, also in aqueous solution, which is known by the trade name Denoxium TM Sales, one of its products (Denoxium-30) contains and solution with an equal amount of ammonia. The latter has the advantage of starting to freeze only at -30°C (instead of -11°C), but has the disadvantage of corrosion problems associated with possible formic acid release. The invention is particularly advantageous in the case of water / urea co-crystal solutions.

[0038] The SCR process is par...

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Abstract

It is proposed a filler neck assembly providing a main channel for supplying a liquid into a tank and an auxiliary channel for evacuating gas from the tank. The main channel is such that it comprises a tubular main body (1) with a first end for receiving a filler spout and a second end for discharging the liquid into the tank. The auxiliary channel is such that it comprises a first section and a second section, the first section being a channel integrally moulded with the tubular main body (1), and the second section being formed by a feature on the exterior of the main body (1) cooperating with a separately formed part (2).

Description

technical field [0001] The present invention relates to the field of vehicle liquid tank assemblies, and more particularly to fill necks for liquid exhaust gas additive tanks in vehicles, such as those equipped for use in vehicles equipped with fuel-based internal combustion engines. A urea solution storage tank that implements selective catalytic reduction of NOx in exhaust gas ("selective catalytic reduction" in English, abbreviated as SCR). Background technique [0002] Legislation on emissions from vehicles and heavy freight vehicles requires the reduction of nitrogen oxides NOx in the atmosphere. One known way of achieving this is to use the SCR process, which allows the reduction of nitrogen oxides by injecting a reducing agent, typically ammonia, in the discharge line. The ammonia may come from pyrolysis of an ammonia precursor solution, which may be at a co-crystal concentration. The ammonia precursor is generally a urea solution. [0003] By using the SCR process...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K15/04
CPCB60K13/04F01N2610/1413F01N2610/02B60K15/04B60K2015/0458F01N3/2066B60K2015/047B60K2015/03538Y02A50/20Y02T10/12B60K15/0406B60K15/03177B29C45/0003B60K2015/03032B60K2015/03098B60K2015/03348B60K2015/0432B29K2023/065B29L2023/004
Inventor 尼尔·帕特里克·布思达蒙·厄普顿
Owner PLASTIC OMNIUM ADVANCED INNOVATION & RES SA
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