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Vehicule fuel supply device and fuel filter structure

A fuel supply device and technology of the supply device are applied in the directions of liquid fuel feeder, arrangement combined with fuel supply of internal combustion engine, power plant, etc., and can solve the problem of cost increase, clogging of primary fuel filter, size of primary fuel filter Increase and other problems to achieve the effect of reducing the number and enhancing the degree of freedom of design

Inactive Publication Date: 2010-03-03
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In the case where a small pore size primary fuel filter is used in the fuel system, such as disclosed in JP 2003-148267 A, it is easy to filter fuels such as ethanol fuel with fine (particulate) dust in the Clogged in primary fuel filter
If the surface area of ​​the primary fuel filter is increased in order to prolong the service life of the primary fuel filter, the size of the primary fuel filter will increase, which results in limited design freedom and increased cost
Furthermore, since the above-mentioned filter cartridge includes a suction inlet part, a mounting part, and a frame part in addition to the bag-like element, the filter cartridge will have a large overall size

Method used

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  • Vehicule fuel supply device and fuel filter structure
  • Vehicule fuel supply device and fuel filter structure
  • Vehicule fuel supply device and fuel filter structure

Examples

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Embodiment Construction

[0044] first reference figure 1 , which shows a side view of a vehicle provided with a fuel filter device and a fuel filter structure according to an embodiment of the present invention. The vehicle 10 is a motorcycle including an engine 12 disposed substantially at a central position on a body frame 11, a front fork 13 steerably supported on a front end portion of the body frame 11, and a front fork 13 pivotally supported vertically on the body frame 11. rear fork 14 on the lower rear part of the. The vehicle 10 uses ethanol, gasoline, or a mixture of gasoline and ethanol as its main fuel, and uses gasoline or a mixture of gasoline and ethanol (which has a higher High gasoline to ethanol mixing ratio) as its auxiliary fuel.

[0045] The body frame 11 is a frame formed by connecting a plurality of die parts, and the body frame 11 includes a header pipe 21 provided at a front end portion thereof, a main frame 22 extending rearward from the header pipe 21 , a A center frame 2...

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PUM

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Abstract

Secondary fuel filter (143) provided downstream of a fuel pump (92) has a smaller pore size than a primary fuel filter (141) provided upstream of the fuel pump. The secondary fuel filter is covered with a case member (171) and positioned along a center frame (23) of the vehicle. The secondary fuel filter is made of non-woven fabric and formed in a bag shape, and fuel is filtered by the secondary fuel filter as it passes from the interior to the outside of the filter.

Description

technical field [0001] The present invention relates to improvements in vehicle fuel supply systems, and improvements in fuel filter constructions including fuel filters made of nonwoven fabric. Background technique [0002] In conventionally known technology, a vehicle fuel supply device is a device including a fuel filter located in a fuel tank (for example, International Publication WO2004 / 072469). In the vehicle fuel supply device disclosed in Patent Document 1, the fuel filter is arranged substantially in the middle of the bottom of the fuel tank, the fuel pump unit is arranged at the rear of the fuel tank, and the fuel filter and the fuel pump unit are connected to each other through a fuel pipe. connect. [0003] In the case of using fuel such as ethanol with fine dust, the fuel filter must have a small mesh or a small pore size (ie, filter fineness); however, in these cases, the fuel must be replaced in a short cycle filter, which increases the number of times main...

Claims

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Application Information

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IPC IPC(8): B01D35/00B60K15/01B62J37/00F02M37/22F02M37/00
CPCY02T10/12
Inventor 山田广司上田稔窪田俊行国府志朗吉田和之
Owner HONDA MOTOR CO LTD
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