Liquid fuel strainer assembly

A technology of filter assembly and liquid fuel, which is applied in the direction of liquid fuel feeder, filtration and separation, thin material processing, etc., and can solve the problems of reducing the efficiency of multi-layer structures

Inactive Publication Date: 2013-09-25
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Additionally, if the filter media includes multiple layers for filtering particulate matter of different sizes, overmolded separators tend to compress the layers together, reducing the efficiency of the multilayer structure

Method used

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  • Liquid fuel strainer assembly
  • Liquid fuel strainer assembly
  • Liquid fuel strainer assembly

Examples

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Embodiment Construction

[0011] Those skilled in the art will understand that terms such as "upper", "lower", "upward", "downward", "top", "bottom" and the like are used descriptively to the drawings and do not represent the protection scope of the present invention. limitations, the scope of protection is defined by the appended claims.

[0012] Referring to the drawings, wherein like reference numerals represent like components throughout the several views, a fuel delivery unit is shown generally at 20 . refer to figure 1 , the fuel delivery unit 20 is disposed inside a fuel tank 22 of the vehicle. The fuel delivery unit 20 includes a fuel pump 24 that circulates fuel from a fuel tank 22 to the engine of the vehicle. To filter or block particulate matter or sediment suspended within fuel delivery unit 20 , fuel delivery unit 20 includes a liquid fuel filter 26 therein. A liquid fuel filter 26 is attached to the fuel pump inlet 28 and filters or collects particulate matter larger than a predefined...

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Abstract

A liquid fuel strainer assembly includes a filter body of filtration media. The filter body includes a first wall and an opposing second wall shaped to define an enclosed interior space therebetween. A fitting connects the filter body to a fuel pump, and provides fluid communication from the enclosed interior space of the filter body to the fuel pump. A flexible tube is disposed within the enclosed interior space of the filter body. The flexible tube prevents the first wall and the second wall from collapsing toward each other to allow fuel to flow through the enclosed interior space toward the fitting. The flexible tube is not attached to either the fitting or the filter body, and is freely moveable within the enclosed interior space of the filter body.

Description

technical field [0001] The present invention relates generally to a fuel delivery unit for a fuel tank, and more particularly to a liquid fuel filter assembly for filtering fuel entering the fuel delivery unit. Background technique [0002] A liquid fuel filter assembly includes a filter body formed of filter media shaped to define an enclosed interior space. A liquid fuel filter assembly is attached to the inlet of the fuel pump and filters particulate matter from the fuel as the pump draws fuel therein. Some filter bodies are shaped by attaching a first wall to an opposing second wall near its peripheral edge, forming a closed interior space therebetween. In order to keep the first wall and the second wall from collapsing against each other when the pump draws fuel therethrough, the divider may be overmolded on one or both of the first wall and / or the second wall, and disposed between the first wall and the second wall. The overmolded divider may include a plurality of ...

Claims

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Application Information

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IPC IPC(8): F02M37/22
CPCB01D35/0273Y10T137/86035Y10T137/794
Inventor P.N.C.古延G.G.林克
Owner GM GLOBAL TECH OPERATIONS LLC
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