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Fuel supply device

A fuel supply and equipment technology, applied in mechanical equipment, low-pressure fuel injection, low-pressure fuel injection, etc., can solve the problems of engine fuel supply, fuel surface height reduction, flexibility reduction, etc.

Inactive Publication Date: 2008-05-21
MITSUBA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the size of the fuel supply equipment increases, causing less flexibility in its layout
[0005] In addition, since the main body has parts other than the fuel pump, the bottom area of ​​the main body becomes larger, causing a decrease in the height of the fuel surface
Therefore, there is a disadvantage that the fuel pump sucks the air present in the fuel tank when the remaining amount of fuel in the fuel tank decreases
That is, it is impossible to stably supply fuel to the engine

Method used

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Examples

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no. 1 example

[0023] figure 1 is a side sectional view showing a state in which the fuel supply apparatus as the first embodiment of the present invention is installed in the fuel tank. figure 2 It is a roughly lateral side view showing the fuel storage structure of the fuel supply equipment. image 3 Yes figure 2 plan view. Figure 4 yes means image 3 Plan view of the lower shell. Figure 5 yes means image 3 Rear view of the lower shell. Image 6 is in image 3 A cross-sectional view taken along line X-X in the state where the connecting cover has been removed. Figure 7 yes means image 3 Plan view of the upper shell. Figure 8 yes means image 3 Side view of the upper shell. Figure 9 is in image 3 The section view taken along the y-Y line.

[0024] like figure 1 As shown, the fuel supply device 1 corresponds to a gasoline supply device of a motorcycle, and is installed into an opening 3 formed in a bottom region 2 a of the fuel tank 2 from the direction of the lower s...

no. 2 example

[0046] Figure 10 Showing the construction of the fuel supply apparatus as the second embodiment of the present invention, it is a side sectional view showing a state in which the fuel supply apparatus is attached to the fuel tank. The same numerals denote the same items as those of the first embodiment, and descriptions thereof will be omitted.

[0047] like Figure 10 As shown, the configuration of the fuel supply device 1 as the second embodiment is such that the peripheral wall 43 is provided in the bottom region of the tank 10, only surrounding the periphery of the pump filter 13, whereby the auxiliary tank 44 corresponds to the volume enclosed by the peripheral wall 43 . Contrary to the first embodiment, since only the peripheral wall 43 is provided for the bottom region of the groove 10, the shaping of the auxiliary groove 44 can be easily achieved. As a result, the auxiliary groove 44 can be easily provided to a conventional groove (not shown in the figure).

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Abstract

The present invention provides a fuel supply equipment achieved in small size, improved in layout and stabilized in supply of fuel to the engine. In the fuel supply equipment, which is installed to a fuel tank and equipped with a reservior for reserving the fuel in a fuel tank, and a fuel pump kept in the fuel tank and pumping up the fuel, an auxiliary revervior is provided on the bottom of the reservior, the level of the fuel around the in-take port of the fuel pump can be raised when the residual amount of fuel in the reservior becomes short, by making the bottom area of the reservior almost equal to the lower area of a pump filte so that the fuel pumpcan pump up the fuel surely.

Description

technical field [0001] The present invention relates to a fuel supply device for supplying fuel to an engine of an automobile or the like. Background technique [0002] In general, a fuel supply apparatus for supplying fuel to an engine of an automobile or the like has been disclosed, for example, in Japanese Patent Laid-Open No. 2000-72074. This fuel supply device has a cup-shaped main body provided in the bottom opening of the fuel tank, and a fuel pump accommodated in the main body. Another example of a known fuel supply device is disclosed in DE-C-19843022C1. [0003] Therefore, when a vehicle or the like with a small amount of remaining fuel in the fuel tank is repeatedly accelerated, decelerated, or turned, even if the oil level of the remaining fuel changes drastically, the fuel in the main body can be prevented from splashing into the fuel tank. [0004] However, in the above-mentioned prior art, at the bottom of the main body, a pipe for supplying fuel to the engi...

Claims

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Application Information

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IPC IPC(8): F02M37/10F02M37/00B60K15/077F02M37/22F02M69/00
CPCB60K2015/03105B60K2015/03236B60K15/077B60K2015/0777F02M37/103
Inventor 成雅彦森信也
Owner MITSUBA CORP
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