JPH0127849Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a fuel strainer that is suspended in a fuel tank and is used to filter out impurities such as dirt contained in liquid fuel such as gasoline. .

[Technical background of the invention]

As shown in FIG. 1, this type of fuel strainer includes a cylindrical strainer body 1 and flange plates 2, 2 fixed to both ends of the strainer body 1, and a fuel tank 3. It is suspended via a steel pipe 5 such as an iron pipe so as to be buried in the fuel 4 inside.

As shown in FIG. 2, the strainer main body 1 is made of a plain weave material 8 in which warp yarns 6 and weft yarns 7 are made of monofilament.

On the other hand, due to temperature changes during the day, the fuel tank 3
The bottom of the fuel tank 3 deforms in the vertical direction due to the so-called breathing action of expansion and compression.

[Problems with background technology]

However, in the above type of fuel strainer, if the lower end surface is suspended so as to be close to the bottom surface of the fuel tank 3, the bottom surface will come into contact with the lower end surface due to deformation of the fuel tank 3, deforming or damaging the strainer itself. Accidents may occur.

Furthermore, in order to prevent the above-mentioned accident from occurring, if the strainer is installed at a position away from the bottom of the fuel tank, the fuel between the lower end of the strainer and the bottom of the fuel tank 3 will not be sucked into the strainer, and the amount of fuel will be reduced. , become unnecessary in cars,
It is extremely unreasonable to have it loaded all the time.

[Purpose of invention]

This idea was made in view of the above points,
To provide a fuel strainer in which the strainer itself has a flexible structure so that it can be deformed in response to the breathing action of the fuel tank, and the fuel in the fuel tank can be suctioned without wasting any of the fuel. purpose.

[Summary of the idea]

In the present invention, at least the warp of the fabric of the material constituting the strainer is formed of a thread consisting of a plurality of filaments, and the tip is suspended inside the fuel tank so that it is always in contact with the inner bottom of the fuel tank. This system allows the remaining fuel to be sucked in without being affected by the breathing effect of the tank.

[Example of idea]

An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 3, the same members as in FIG. 1 are given the same reference numerals.

In FIG. 3, reference numeral 10 denotes a fuel strainer, and the fuel strainer 10 has a strainer body 11 and a flange plate 12 fixed to the upper end of the strainer body 11. The strainer body 11 is suspended in the fuel tank 3 by the steel pipe 5 so that the lower end 11a of the strainer body 11 is in contact with the inner bottom 3a of the fuel tank 3.

The strainer main body 11 is made by cutting a material 15 made of a woven fabric in which the weft is a monofilament yarn 13 and the warp is a twisted yarn 14 of a plurality of filaments to an appropriate size to form a cylindrical body. The spacing between the warp and weft yarns is set to such a size that a film is formed on the surface due to the wetting phenomenon of the fuel.

Next, the effect will be explained.

The strainer body 11 is made of a flexible material such as a woven fabric, and the strainer 10 is suspended within the fuel tank 3 with its lower end in contact with the inner bottom 3a. Even if the inner bottom 3a moves up and down due to breathing action due to temperature changes, the strainer body also moves in accordance with the movement, so the strainer body will not be damaged, and the surface of the strainer body will not be wet with fuel. As a result of this phenomenon, a film is formed, which isolates the inside of the strainer from the outside air, thereby preventing so-called air entrapment.

On the other hand, since the warp yarns of the strainer body 11 are formed from a plurality of filaments, the surface tension of the fuel acts effectively in the gaps between the filaments.
A so-called capillary phenomenon occurs, which promotes the wetting phenomenon.

[Effect of idea]

As described above, according to the present invention, since the warp yarn is formed of a plurality of filaments, the capillary phenomenon acts effectively, and the fuel rises efficiently, and a film of fuel is formed on the surface due to the capillary phenomenon. Since the inside of the strainer is isolated from the outside air, so-called air trapping phenomenon does not occur, and the lower end of the strainer can be placed in contact with the inner bottom of the fuel tank, making it possible to drain the fuel in the fuel tank. The effect is that suction can be carried out to a state where the remaining amount is zero, and therefore the tank capacity can be set small.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram of a conventional fuel strainer in use, Fig. 2 is a partially enlarged view of the material forming the strainer, Fig. 3 is an explanatory diagram of a fuel strainer according to the present invention in use, and Fig. 4 is an explanatory diagram of a conventional fuel strainer in use. It is a partially enlarged view of the material forming the strainer. 10... Strainer, 11... Strainer body, 13... Weft, 14... Warp, 15...
material.

Claims (1)

[Scope of utility model registration request] A cylindrical part is formed using a material in which at least the warp threads are made of threads consisting of a plurality of filaments, and the cylindrical part is suspended within the fuel tank so that the lower end of the cylindrical part touches the inner bottom of the fuel tank. Fuel strainer.