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fuel supply device

A fuel supply device and fuel technology, applied in the direction of liquid fuel feeder, charging system, engine components, etc., can solve the problems of increased size of fuel supply device, difficulty in installing fuel tanks, etc.

Inactive Publication Date: 2018-04-24
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the size of the fuel supply device in the vertical direction relative to the flange increases, and it is difficult to install it on a fuel tank with a low height.

Method used

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Experimental program
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Effect test

no. 1 approach ）

[0029] Figure 1~Figure 11C The fuel supply device of the first embodiment of the present invention is shown. The fuel supply device 1 of this embodiment is a turbo pump installed in a fuel tank of a motorcycle.

[0030] figure 2 as well as image 3 The fuel tank 2 of a motorcycle is shown. The fuel tank 2 is formed in a saddle shape, and the frame of the motorcycle passes through a recess 3 provided in the center of the fuel tank 2. The fuel supply device 1 is inserted into the fuel tank 2 from an opening 4 provided on the lower side of the tank in the direction of gravity. The fuel drawn up from the fuel tank 2 by the fuel supply device 1 is supplied to an internal combustion engine not shown.

[0031] Such as figure 1 as well as Figure 4 ~ Figure 6 As shown, the fuel supply device 1 includes a flange 10, a fuel pump 20, a regulator 30, a housing 40, and the like.

[0032] The flange 10 has a cover portion 11, a mounting portion 12, a discharge passage 13, and the like.

[003...

no. 1 approach

[0070] The first embodiment exerts the following effects.

[0071] (1) The fuel supply device includes a regulator 30 between the flange 10 and the fuel pump 20, and the rotation shaft P of the motor 24 of the fuel pump 20 1 And the moving direction R of the ball valve 32 of the regulator 30 1 It is parallel to the first imaginary plane α.

[0072] Thus, the fuel supply device 1 can reduce the size of the body of the flange 10 in the direction perpendicular to the first virtual plane α. Therefore, the fuel supply device 1 can be installed in a fuel tank 2 having a low height.

[0073] (2) The space S is provided on the opposite side of the regulator 30 from the discharge passage and on the flange side of the fuel pump 20.

[0074] With this space S, the fuel supply device 1 can be rotated inside the fuel tank 2, so the fuel supply device 1 can be easily assembled to the fuel tank 2.

[0075] Furthermore, by providing the regulator 30 in a region on the discharge passage side of the spa...

no. 2 approach ）

[0099] Picture 12 A schematic diagram showing the fuel supply device of the second embodiment. In the second embodiment, the fuel pump 20 is arranged on the flange 10 and the regulator 30 is arranged on the fuel pump 20.

[0100] Also in the second embodiment, it is possible to exhibit substantially the same functions and effects as the above-mentioned first embodiment.

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Abstract

A fuel supply system (1) is provided with a flange (10) of an opening, arranged for blocking a fuel tank; a fuel pump (20) for discharging fuel in the fuel tank out to a discharge passage through rotation of a motor; and a regulator (30) disposed between the flange (10) and the fuel pump (20). A rotating shaft (P1) of the motor of the fuel pump (20) and a moving direction (R1) of a valve component of the regulator (30) are parallel with a first hypothetical surface (alpha) including the lower end face of the flange (10). Therefore, the size of the fuel supply system (1) is minimized.

Description

Technical field [0001] The present invention relates to a fuel supply device for supplying fuel to an internal combustion engine. Background technique [0002] Conventionally, there has been known a fuel supply device that is installed inside the fuel tank and pumps up the fuel stored in the fuel tank to supply the internal combustion engine. [0003] The fuel supply device described in Patent Document 1 has a fuel pump attached to a flange that closes the opening of the fuel tank. The fuel discharged from the fuel pump to the discharge passage provided in the flange is pressure-regulated by a regulator provided in the discharge passage. [0004] Patent Document 1: Chinese Patent Application Publication No. 102052215 Specification [0005] However, the fuel supply device described in Patent Document 1 is provided with a regulator on the same axis as the discharge passage extending perpendicular to the flange. Therefore, the physique of the fuel supply device in the vertical directio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02M37/10
Inventor 及川忍增田健吾
Owner DENSO CORP
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