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Fuel supply device

A fuel supply device and fuel technology, applied in the arrangement combined with the fuel supply of internal combustion engines, liquid fuel feeders, power devices, etc., can solve the problems of large-scale fuel pumps and increased power consumption, and achieve miniaturization, Reduced miniaturization and reduced power consumption

Active Publication Date: 2014-10-01
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the fuel pump is not arranged in the sub-side storage part, it is disadvantageous in the point of outputting the fuel to the outside, resulting in an increase in the size of the fuel pump and an increase in power consumption.

Method used

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Examples

Experimental program
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Embodiment Construction

[0051] exist figure 1 , a schematic configuration of the fuel supply device 12 according to the first embodiment of the present invention is shown. In addition, in Figure 2A to Figure 4B In , the fuel supply device 12 is partially enlarged and illustrated. exist Figure 2B to Figure 4B In FIG. 2 , the fuel is omitted for convenience of illustration, but actually, the fuel GS appropriately exists in the fuel tank main body 14 .

[0052] The fuel supply device 12 has a fuel tank main body 14 in which fuel GS is stored. The fuel tank main body 14 of the present embodiment has two low position portions 34A, 34B on both sides in the width direction, and a relatively higher portion between the low position portions 34A, 34B than the low position portions 34A, 34B. The high position portion 36 formed at the position. That is, the fuel tank main body 14 has low-position portions 34A, 34B formed on both sides of the single high-position portion 36, thereby forming a saddle-shaped...

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PUM

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Abstract

A fuel supply device is achieved which can have a more compact fuel pump, said fuel supply device having a configuration in which some of the fuel which has been pumped to the outside by driving of the fuel pump can be returned to a housing unit where no fuel pump is arranged. A jet pump (68) is provided in a vapor discharge tube (64) capable of returning fuel from a fuel pump main body (42) to a second fuel housing unit (38S). The cross-sectional area of the flow path of the vapor discharge tube (64) can be changed by a float valve (76).

Description

technical field [0001] The present invention relates to a fuel supply device, and more specifically, to a fuel supply device for supplying fuel in a fuel tank to an internal combustion engine or the like. Background technique [0002] In a fuel supply device that supplies fuel in a fuel tank to an external device such as an internal combustion engine, there is a fuel tank having a structure in which a plurality of storage portions for storing fuel are provided. For example, JP 2008-121454 A (Patent Document 1) describes a fuel supply device including a first fuel storage unit and a second fuel storage unit. A fuel supply unit including a fuel pump is arranged in the first fuel storage unit. And utilize the flow of the fuel in the return passage branched from the fuel supply passage in the tank to drive the injection pump so that the return fuel returns to the first fuel storage part, and the fuel in the second fuel storage part is sent to the first fuel storage part. The f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M37/00F02M37/12F02M37/18
CPCF17C9/00F02M37/10F02M37/0094B60K2015/03236F02M37/18Y10T137/7976Y10T137/85954B60K2015/03138F02M37/025B60K2015/03125B60K2015/0325B60K2015/03144B60K15/03F02M37/0023Y10T137/7426F02M2037/228F02M37/50F02M37/00F02M37/12
Inventor 片冈千明赤木正纪
Owner TOYOTA JIDOSHA KK