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Suction filter and fuel supply device

一种吸滤器、燃料的技术，应用在液体燃料给料机、固定式滤芯过滤器、过滤分离等方向，能够解决性能稳定性下降、吐出性能变动、堵塞网眼等问题，达到抑制稳定性下降的效果

Active Publication Date: 2018-03-27
AISAN IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when the vehicle is turning, etc., the fuel between the filter element and the storage member tends to leak from the inflow hole due to the inclination of the liquid surface.
Therefore, if the captured amount of fuel decreases between the filter element and the storage member, the captured amount may be exhausted in a short time by taking fuel into the suction port, which may cause air to be sucked into the suction port.
Such suction of air to the suction port changes the discharge performance of the fuel pump, so it is not advisable.
[0007] In addition, in the suction filter disclosed in Patent Document 1, in the filter element having a small surface area due to the structure covered by the storage member, if the mesh thickness is reduced to improve the filtering function, the foreign matter in the surface area will The mesh is clogged, and the proportion of the part that is difficult to inhale fuel tends to increase
Therefore, the stability of the discharge performance of the fuel pump may decrease due to the clogged mesh of the filter element.

Method used

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  • Suction filter and fuel supply device
  • Suction filter and fuel supply device
  • Suction filter and fuel supply device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0040] Such as figure 1 As shown, the fuel supply device 1 of the first embodiment of the present invention is mounted on a fuel tank 2 of a vehicle. The device 1 supplies the fuel in the fuel tank 2 to the internal combustion engine 3 outside the tank 2. Here, the fuel tank 2 of the mounting device 1 is formed into a hollow shape from resin, and stores the fuel supplied to the internal combustion engine 3 side. In addition, the internal combustion engine 3 supplied with fuel from the device 1 may be a gasoline engine or a diesel engine. In addition, in a vehicle on a horizontal plane, the horizontal direction and the vertical direction are respectively figure 1 The horizontal and vertical directions in are substantially the same.

[0041] (the whole frame)

[0042] First, the overall structure of the device 1 will be described.

[0043] The device 1 includes a flange 10, a sub tank 20 and a pump unit 30.

[0044] The flange 10 is formed of hard resin in a disc shape. The flange 1...

no. 2 approach

[0073] Such as Figure 4 As shown, the second embodiment of the present invention is a modification of the first embodiment.

[0074] The partition 2313 in the partition wall element 2311 of the second embodiment is joined between the outer peripheral edge portions of the respective filter sheets 310c and 310d except for a part in the circumferential direction, and is covered in a flat film shape. The partition part 2313 has a non-joining edge part 2313d in the specific site|part Pc which is not joined with respect to each filter sheet 310c, 310d. The non-joining edge portion 2313d is separated from the separation portion Pd of the joining portion of the filter pieces 310c and 310d toward the suction port 32a side of the fuel pump 32. In addition, the partition 2313 has the same structure as the first embodiment with respect to structures other than such a joining form and a separation form.

[0075] In addition, the communication window 2314 in the partition wall element 2311 of ...

no. 3 approach

[0078] Such as Figure 5 As shown, the third embodiment of the present invention is a modification of the first embodiment.

[0079] The partition 3311 in the partition wall element 3311 of the third embodiment is entirely made of a material that performs a filtering function such as porous resin, woven fabric, non-woven fabric, resin mesh, and metal mesh, and is formed into a flexible, soft membrane. shape. The partition 3313 is joined between the outer peripheral edge portions of the filter sheets 310c and 310d over the entire circumference, and is arranged in a relaxed state in which the second space portion 312b can be expanded and contracted in a waveform. In addition, regarding structures other than such flexibility and relaxed state, the partition wall element 3311 also includes the point that it has a communication window 314, and is the same structure as the first embodiment. Therefore, a portion of the inner space 312 of the filter element 310 except for the communicat...

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Abstract

The present invention provides: a filter element (310) which is arranged inside a fuel tank (2) and which filters stored fuel, that is stored inside the fuel tank (2), by causing the stored fuel to pass through into an inside space (312); and a partition element (311) which is exposed to the inside space (312). The partition element (311) is disposed to partially partition the inside space (312) into a first space part (312a) to which the fuel filtered through the filter element (310) flows in and a second space part (312b) toward which a suction port (32a) through which the filtered fuel is sucked by a fuel pump (32) opens, and has: a separation part (313) which causes the filtered fuel to pass from the first space part (312a) to the second space part (312b); and a communicatively-connecting window (314) which is formed one-sidedly, in the separation part (313), further from the suction port (32a) which communicatively connects the first space part (312a) and the second space part (312b) by bypassing the separation part (313).

Description

[0001] Cross-reference of related applications [0002] This application is based on Japanese Patent Application No. 2015-150012 filed on July 29, 2015 and Japanese Patent Application No. 2015-240569 filed on December 9, 2015, and the entire contents of the contents disclosed in this specification are cited. Technical field [0003] The present invention relates to a suction filter (intake filter, suction filter) and a fuel supply device equipped with the suction filter. Background technique [0004] Conventionally, a fuel supply device that supplies fuel from the inside of the fuel tank of a vehicle to the outside of the fuel tank uses a fuel pump arranged in the fuel tank to discharge fuel sucked into the suction port of the pump toward the outside of the fuel tank. As one of such fuel supply devices, in the device disclosed in Patent Document 1, a suction filter is provided in the fuel tank to filter the fuel and suck it into the suction port of the fuel pump. [0005] In addition...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M37/10F02M37/22F02M37/34F02M37/44F02M37/50
CPCF02M37/10F02M37/106F02M37/50F02M37/34F02M37/44F02M37/22B01D29/13B01D35/02
Inventor 林宣博
Owner AISAN IND CO LTD
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