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Integrated structure of fuel tank and urea tank, material and process

A urea tank, an integrated technology, applied in the field of auto parts, can solve the problems of not easy to control the wall thickness of the tank, high cost of the urea tank, limited rotational molding raw materials, etc., to reduce the invalid liquid level area and high product economy , to reduce the effect of the sum of the mass

Pending Publication Date: 2019-10-15
山东统亚模塑科技实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The urea tank produced by the blow molding process has high cost and small volume; and it is not easy to control the wall thickness of the tank, which usually leads to excessive wall thickness and waste of raw materials
The cost of rotational molding is relatively high, and the raw materials suitable for rotational molding are limited, the production efficiency is low, and the energy consumption is large
In addition, in the prior art, the urea tank is generally fixed on the car body with a special bracket by binding with cable ties, which takes up a lot of space.
After installing various urea injection pumps and oil-water separators at the same time, it takes up a lot of space in the frame layout. Moreover, the urea tank assembly on the market can only be installed with split sensors or only integrated sensors, which limits the versatility.
[0007] In addition, although it is mentioned in the prior art that the fuel tank and the urea tank are integrated, two different structural parts are spliced ​​and welded together. In essence, they are still two separate structural parts. The structural parts are essentially two separate structural parts, and there are still certain limitations in performance

Method used

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  • Integrated structure of fuel tank and urea tank, material and process
  • Integrated structure of fuel tank and urea tank, material and process
  • Integrated structure of fuel tank and urea tank, material and process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] In a typical embodiment of the present invention, such as figure 1 with figure 2 As shown, an integrated structure of a fuel tank and a urea tank includes a housing 1, and a partition plate 17 is arranged inside the housing 1 to form a fuel chamber on one side of the partition board 17 and a urea chamber on the other side. At least one anti-surge partition 18 is provided in the fuel chamber of the casing 1, and the partition 17 and the anti-surge partition 18 are arranged along the width direction of the casing 1, and the partition 17 must ensure that the cavities on both sides Specifically, the partition plate 17 is injection molded together with the casing 1, and the anti-surge partition 18 is provided with a through hole or there is a set space between the anti-surge partition 18 and the inner wall of the casing 1, so that the entire fuel oil The fuel oil in the cavity is connected, and through the setting of the anti-surge partition 18, it is used to form multiple...

Embodiment 2

[0065] An integrated structure of fuel tank and urea tank, using anti-permeation polyamide material, the specific materials used in the composition of the anti-permeation polyamide material include ethylene-octene copolymer, anti-UV additives, flame retardant and nylon 6 , and the proportions of the components are: 5-7 parts, 0.15-0.2 parts, 0.1-2 parts and 91-95 parts. When making the shell, the above four components are fused with each other to form an impermeable polyamide material.

[0066] The main chain of ethylene-octene copolymer (POE) is ethylene, the side chain is octene, and the molar content of octene is 20%-25%. POE will also have excellent properties such as aging resistance, ozone resistance, and chemical medium resistance. By cross-linking POE, the heat-resistant temperature of the material is increased by 30%, and the mechanical properties such as impact resistance and toughness are improved by more than 10 times.

[0067] Anti-UV additives, the main component...

Embodiment 3

[0071] A manufacturing process of an integrated structure of a fuel tank and a urea tank, comprising the following contents:

[0072] Using the anti-permeation polyamide materials disclosed in Example 2, the upper casing 14 and the lower casing 13 of an integral structure are manufactured by injection molding, and the partition plate fixing part for fixing the partition plate has been formed during the manufacturing process. And the card groove and locking groove used to fix the anti-surge partition. The injection molding adopts a high-precision servo injection molding machine. By controlling the mold temperature and injection pressure, the injection pressure is ≤50Mpa, the molding temperature is 265±5°C, and the injection pressure is 90- 100bar; injection is carried out three times, and the speed of each section is reduced in turn; injection time is 15±2S; cooling time is 40±5S, so as to reduce the warping deformation of the product as much as possible, meet the welding proces...

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Abstract

The invention discloses an integrated structure of a fuel tank and a urea tank, a material and a process, and solves the problem that an existing fuel cavity and a urea cavity are separately arranged,the occupied area in a vehicle is large, the fuel cavity is easy to deform, and the cost of the urea cavity is relatively high. The integrated structure of the fuel tank and the urea tank, the material and the process have the beneficial effects that the fuel cavity and the urea cavity are organically unified, the space is saved, and the quality of the fuel cavity and the urea cavity is reduced.According to the scheme, the integrated structure of the fuel tank and the urea tank comprises a shell, wherein the shell is formed through an injection molding process, and the shell is provided witha length direction and a width direction; a separation plate fixing part and an anti-surge partition plate fixing part are arranged in the shell along the width direction of the shell, the separationplate fixing part and the anti-surge partition plate fixing part are subjected to injection molding together with the shell, and a separation plate is fixedly arranged at the separation plate fixingpart to divide the shell into at least two parts so as to form the urea cavity and the fuel cavity in the shell; an anti-surge partition plate is fixedly arranged at the anti-surge partition plate fixing part, the separation plate and the anti-surge partition plate are both connected with two opposite side walls in the width direction of the shell.

Description

technical field [0001] The invention relates to the field of auto parts, in particular to an integrated structure, material and process of a fuel tank and a urea tank. Background technique [0002] With the rapid development of the automobile industry and the improvement of automobile environmental protection requirements, automobile fuel tanks and automobile urea tanks are important safety and regulatory parts in automobile parts, and their structure optimization and performance improvement have become the major automobile manufacturers. solved problem. [0003] Most of the early automobile fuel tanks were made of metal materials such as ST12 / ST14 cold-rolled steel plates, which were characterized by large volume, cheap price, easy molding, and relatively low mold cost. Most trucks still use this kind of large capacity, rigidity and Strong metal fuel tank. However, with the improvement of national IV and national V emission indicators, and the common rail system puts forw...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K15/03B60K15/077F01N3/20F01N3/28F01N13/18C08L77/02C08L23/08C08K5/3492B29C45/00B29C65/02
CPCB60K15/03B60K15/077F01N3/2066F01N3/28F01N13/1838C08L77/02B29C45/006B29C65/02B60K2015/0344B60K2015/0775C08L2201/02C08L2201/08C08L23/0815C08K5/34928Y02A50/20
Inventor 朱庆凯
Owner 山东统亚模塑科技实业有限公司
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