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Fuel drawing device for fuel tank of automobile

A technology for automobile fuel tanks and fuels, which is applied to liquid fuel feeders, charging systems, non-variable-capacity pumps, etc., and can solve problems such as the danger of emptying

Inactive Publication Date: 2002-07-24
MARWAL SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0020] Sixth, it should be emphasized that, unless special precautions are taken, the presence of degassing holes in the pump housing can lead to the risk that the positive reserve associated with the pump will be emptied through said degassing holes

Method used

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  • Fuel drawing device for fuel tank of automobile
  • Fuel drawing device for fuel tank of automobile
  • Fuel drawing device for fuel tank of automobile

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Embodiment Construction

[0033] As mentioned above, the device according to the invention comprises an electric suction pump 100 and a fine filter 210 placed upstream of the pump, ie at its inlet.

[0034] Various configurations of the fine filter 210 will be described in more detail below.

[0035] In addition, in the description of the present invention, the pumping pump 100 is a brushless electric pump. Such pumps are known to those skilled in the art. In fact, it consists of a stator with coils and a rotor with magnets.

[0036] The use of a brushless pump 100 makes it possible to limit, especially in conventional pumps with brushes, the risk of foreign bodies entering the fuel or injectors from debris of metal or plastic material torn off when the brushes move over the corresponding collectors .

[0037] Of course, this advantage becomes even more important when the fine filter 210 is placed upstream rather than downstream of the extraction pump 100 .

[0038] Additionally, in the context of ...

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PUM

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Abstract

The present invention provides a device for drawing-off fuel from a motor vehicle tank, the device comprising a drawing-off pump (100) and a fine filter (210) placed upstream from the pump (100), wherein the drawing-off pump (100) is a brush-less pump.

Description

technical field [0001] The invention relates to the field of systems for pumping fuel from motor vehicle fuel tanks. Background technique [0002] Currently, many systems have been proposed for this purpose. [0003] Typically, systems for drawing fuel from an automotive fuel tank include an electric pump that draws fuel from the fuel tank or from a supply located in the fuel tank. [0004] The purpose of this supply is to limit the amount of movement of the oil near the suction inlet of the pump caused by the centrifugal forces created by the vehicle accelerating, decelerating or driving on non-straight roads. [0005] In addition, known fuel extraction systems generally comprise a coarse filter or strainer placed at the inlet of the pump, and a fine filter to ensure the quality of the oil entering the engine onwards. [0006] In particular, such a fuel extraction system has been proposed, for example in document WO A 99 / 01658, in which a fine filter is located downstream...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M37/02F02M37/10F02M37/18F02M37/44F02M37/46F02M37/50F04D5/00
CPCF02M37/106F02M37/025F02M37/22F04D5/002F02M37/50F02M37/44F02M37/46
Inventor 卡里姆·本赫扎尔弗雷德里克·维勒拉
Owner MARWAL SYST