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Preliminary filter for a fuel delivery unit

一种输送单元、预滤器的技术，应用在固定式滤芯过滤器、过滤分离、发动机元件等方向，能够解决大量加工步骤、预滤器制造费用高等问题，达到高自身稳定性、降低制造费用、少制造费用的效果

Inactive Publication Date: 2010-03-31
CONTINENTAL AUTOMOTIVE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The disadvantage of this known prefilter is that the prefilter is very expensive to manufacture and requires a large number of processing steps

Method used

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  • Preliminary filter for a fuel delivery unit
  • Preliminary filter for a fuel delivery unit
  • Preliminary filter for a fuel delivery unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] figure 1 A fuel supply unit 2 with a prefilter 3 arranged on the bottom 1 of a storage tank 4 of a motor vehicle is shown. The prefilter 3 is arranged close to the bottom 1 of the storage container 4 and is connected to the fuel delivery unit 2 via a connecting line 5 . Storage container 4 may be a fuel tank of a motor vehicle. The fuel delivery unit 2 has an electrically driven fuel pump 6 , by means of which fuel is drawn from the bottom 1 of the storage tank 4 via the prefilter 3 and delivered into a feed line 7 , which leads to a not shown internal combustion engine.

[0024] Prefilter 3 in figure 2 Shown enlarged. It can be seen here that the prefilter 3 has two flat sections 9 , 10 of the filter cloth 11 which are arranged on the carrier 8 . The support part 8 has a support edge 12 to which the sections 9 , 10 of the sieve 11 are fastened at the end faces. The support edge 12 also tensions the sections 9 , 10 of the sieve 11 . For further support, the suppo...

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PUM

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Abstract

The invention relates to a preliminary filter (3) for a fuel delivery unit (2) of a motor vehicle, with a filter fabric (11) which is tensioned by a supporting edge (12). The supporting edge (12) is manufactured integrally with a connecting piece (5) for connection to the fuel delivery unit (2) and with transverse webs (13) and supporting ribs (14). By this means, the preliminary filter (3) is composed of particularly few components to be assembled and can be manufactured particularly cost-effectively.

Description

technical field [0001] The invention relates to a prefilter for a fuel delivery unit of a motor vehicle, which prefilter has a filter mesh; a connection pipe for connection to a fuel pump; and a support for supporting the filter mesh. Background technique [0002] Such prefilters are frequently used in modern motor vehicles to filter various fuels, such as diesel or gasoline, and are known from practice. In order to produce the known prefilter for filtering petrol, a fabric cutout is punched out of a plastic fabric which is adapted to the unfolded shape of the prefilter to be produced. This fabric trim is loaded into a plastic-injection injection mold. In injection molding, usually a plurality of supports and connecting pipes are injection molded onto the textile blank. In order to be able to fix the textile blank in the injection molding tool, tabs and projections are also provided on the textile blank. After the injection molding process, the fabric trim is folded towar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D29/05B01D35/027F02M37/10F02M37/50
CPCF02M37/10F02M2037/228B01D35/0273B01D35/027F02M37/22F02M37/50F02M37/34B01D35/005
Inventor 霍尔格·魏纳
Owner CONTINENTAL AUTOMOTIVE GMBH
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