JP2551972Y2 - Fuel tank - Google Patents

Description

[Detailed description of the invention]

[0001]

This invention relates to a fuel tank.
It is particularly useful when applied to those having a separator inside.

[0002]

2. Description of the Related Art Generally, a fuel tank of a vehicle has a separator inside. For example, as shown in FIG. 4, the fuel tank 1 has two chambers 1 a, each having an interior filled with fuel divided in a horizontal direction by a separator 2.
1b. At this time, one end of a feed pipe 3 for supplying fuel and a return pipe 4 for returning surplus fuel into the fuel tank 1 face the one chamber 1a. As shown in FIG. 5, the separator 2 having a vertical wall has four holes 2a, 2a dispersed in the upper part, the central part, and the lower part thereof.
b, 2c, and 2d, have notches 2e, 2f, 2g, and 2h in which four corners are cut obliquely.
The fuel flows into the chambers 1a and 1b via the cutouts 2d and the cutouts 2e to 2h.
It is possible to circulate between.

Thus, even if the vehicle body shakes while the vehicle is running and the fuel is biased toward the chamber 1b, a part of the fuel is prevented from flowing into the chamber 1b by the separator 2, and the remaining amount of the fuel is reduced. In this case, the opening of one end of the feed pipe 3 is immersed in the fuel so as to prevent air from being sucked into the feed pipe 3 as much as possible. Incidentally, when air is sucked into the feed pipe 3, troubles such as engine stall occur. In FIG. 4, reference numeral 5 denotes an oil supply pipe.

[0004]

In the fuel tank 1 according to the prior art as described above, the lower hole 2d and the notch 2 are provided.
g and 2h, the fuel flows between the chambers 1a and 1b. Therefore, when the remaining amount of fuel is small, and when the fuel is biased toward the chamber 1b due to the swing of the vehicle body, the feed pipe 3 There is a possibility that a state may occur in which the opening is not immersed in the fuel. For this reason, there is a problem that the presence of the hole 2d and the cutouts 2g and 2h is a limiting factor, and is substantially determined in a state where the ineffective remaining amount of fuel is relatively large.

The present invention has been made in view of the above-mentioned problems of the prior art,
It is an object of the present invention to provide a fuel tank capable of suppressing fuel movement when the remaining amount is small, preventing the intake of air from a feed pipe, and reducing the ineffective remaining amount.

[0006]

In order to achieve the above object, the present invention is directed to a fuel tank having a plurality of divided chambers in a fuel tank filled with a fuel-filled interior in a horizontal direction. In addition to providing a plurality of holes, a pipe is provided at the lower part to communicate an adjacent chamber, and the pipe has an elbow shape bent at a portion facing a chamber facing a fuel feed pipe. And

[0007]

According to the present invention having the above-described structure, the lower portion of the separator is communicated only through the pipe, so that the fuel movement, particularly when the remaining amount is small, can be suppressed. Also, at this time, the fuel movement through the pipe between the adjacent chambers is more strongly suppressed from the chamber facing the feed pipe to the other chamber because the pipe is in an elbow shape. Fuel movement in the direction can be easily performed.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a perspective view showing an embodiment of the present invention, and FIG.
Is a sectional view taken along line AA of FIG. 3, and FIG. 3 is a sectional view taken along line BB of FIG. As shown in FIGS. 1 to 3, the fuel tank 11 according to the present embodiment also has two chambers 11 a and 11 b in which the interior filled with fuel is divided in the horizontal direction by a separator 12, similarly to the related art. doing. At this time, one end of a feed pipe 13 for supplying fuel and a return pipe 14 for returning surplus fuel to the fuel tank 11 face the one chamber 11a.

The fuel tank 11 according to the present embodiment differs from the prior art in the structure of the separator 12.
That is, the separator 12 has notches 12d and 12e in which the upper two corners are cut obliquely, as well as three holes 12a, 12b and 12c dispersed in the upper part and the central part, as in the conventional case. , Pipes 16a and 16b at the bottom
Is provided, and communicates with the adjacent chambers 11a and 11b via these pipes 16a and 16b. At this time, the pipes 16a and 16b are formed in an elbow shape in which a portion facing the chamber 11a where the feed pipe 13 faces is bent.
The opening on the side a is in the vicinity of the side wall of the fuel tank 11 and opposes the side wall, and the portion facing the chamber 11b is a straight pipe.

According to this embodiment, the separator 12
Since the lower part of the upper portion serves as a barrier for fuel movement except for the pipes 16a and 16b, fuel movement can be suppressed particularly when the remaining amount is small. At this time, the pipes 16a and 16b are in an elbow shape, and the opening on the chamber 11a side is in the vicinity of the fuel tank 11 so as to be opposed to the side wall. Although the fuel easily moves from the chamber 11b to the chamber 11a in the direction shown by the arrow, the movement in the opposite direction is strongly suppressed. Thus, even if the remaining amount of fuel is small, it is possible to favorably prevent air from being sucked into the feed pipe 13.

[0012]

According to the present invention, as described in detail with the above embodiments, the movement of the fuel is suppressed, and the movement from the room facing the feed pipe to the other room is more strongly suppressed. Therefore, even when the remaining amount of the fuel is small, it is possible to satisfactorily ensure that one end of the feed pipe is immersed in the fuel. Therefore, there is an effect that the ineffective remaining amount of fuel can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a sectional view taken along line BB of FIG. 2;

FIG. 4 is a perspective view showing a fuel tank according to the related art.

FIG. 5 is a front view illustrating a separator of FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Fuel tank 11a, 11b chamber 12 Separator 12a, 12b, 12c hole 13 Feed pipe 16a, 16b Pipe

Claims (1)

(57) [Scope of request for utility model registration] 1. A fuel tank having a plurality of divided chambers in which a fuel-filled interior is horizontally arranged by a separator, wherein a plurality of holes are provided in an upper portion and a central portion of the separator, and a pipe is provided in a lower portion. A fuel tank, wherein the fuel tank is provided so as to communicate with an adjacent chamber, and the pipe has a bent elbow shape at a portion facing a chamber facing a fuel feed pipe.