JP3496395B2 - Arrangement structure of fuel filter and return fuel control device for diesel vehicles - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is provided in a fuel supply system of a diesel vehicle and has a segmenter (hereinafter referred to as a segmenter) as a fuel filter having both a fuel filtering function and a water draining function, and a return fuel on a fuel tank side. The present invention relates to an arrangement structure of a return fuel control device that controls switching to a segmenter side.

[0002]

2. Description of the Related Art It is desirable to provide a segmenter and a return fuel control device in the vicinity of an engine body in view of maintenance and hose wiring layout. For this reason, as shown in FIG. An integral type in which and are connected in the vertical direction is used, and these segmenter 20 and return fuel control device 21 are arranged in a box-shaped protector 22 and are attached to the front surface of the dash lower panel 23 via a bracket 22a. It is arranged so as to project in a narrow space between the side of the engine body 24 and the side of the brake master cylinder 25.

In such an integral type of the segmenter 20 and the return fuel control device 21, if the hose connectors 20a, 21a are arranged so as to project to the front side, the fuel hoses 26 are closely packed and interfere with each other. As shown in the drawing, each hose connector 2 has a long length because of hindrance, lack of freedom in hose layout, and increase in hose length to avoid interference between fuel hoses.
0a and 21a are arranged so as to project in both directions.

[0004]

The engine main body 24 and the brake master cylinder 25 are relatively close to each other in the vehicle width direction, and the segmenter 20 and the return fuel control device 21 are arranged between them. , Segmenta 2
The hose connector 20a on the vehicle center side of the hose connectors 20a, 20a projecting laterally of 0 wraps behind the engine accessory 27 such as a vacuum pump protruding to the side of the engine body 24, and The vehicle side hose connector 20a comes close to the side of the brake master cylinder 25.

Therefore, when the engine body 24 moves backward during a frontal collision of the vehicle, the engine accessory 27 interferes with the hose connector 20a on the vehicle center side, or when the vehicle obliquely frontal collision occurs, the brake master cylinder 2
5 may interfere with the hose connector 20a on the vehicle side.

Therefore, it is known that the return fuel control device is constructed separately from the segmenter, and the return fuel control device is disposed inside the cowl box. It is unavoidable that not only the hose layout becomes difficult, but also the hose length becomes long, which is disadvantageous in terms of cost and assembling work. Moreover, as in recent years, many functional parts such as electronic parts are used in the urbox. In the case of arranging the inside, it becomes more difficult to lay out the parts inside the cowl box.

Therefore, the present invention can thoroughly implement collision protection measures for the fuel filter and the return fuel control device in the event of a vehicle collision, facilitate hose layout of these two parts, and minimize the hose length of the fuel hose. (EN) Provided is an arrangement structure of a fuel filter and a return fuel control device of a diesel vehicle which can be installed in a short time.

[0008]

According to a first aspect of the present invention, a dash lower panel is disposed so as to project through a protector toward a narrow space between an engine body side portion and a brake master cylinder side portion. configured the return fuel control device the fuel filter and separate, the return fuel control system just below the brake master cylinder, and, while disposed at a position offset rearwardly from the front end of the brake master cylinder, left and right Front sidemen
The subframe joints that are joined across the
It is characterized in that it is set at a position approximately the same as the front-rear direction of the fuel control device .

According to a second aspect of the present invention, a plurality of hose connectors of the fuel filter according to the first aspect are provided on the front surface of the fuel filter so as to be adjacent to each other in the projected front surface of the fuel filter. .

[0010]

A third aspect of the present invention is characterized in that the return fuel control device according to the first or second aspect is attached to a clutch damper bracket connected to a front side member together with the clutch damper.

[0012]

According to the first aspect of the present invention, the return fuel control device is formed separately from the fuel filter arranged via the protector, and the return fuel control device is adjacent to the side of the fuel filter. The hose layout of the fuel filter and the return fuel control device is easy and the hose length of the fuel hose is short because it is arranged immediately below the brake master cylinder and offset to the rear of the tip of the brake master cylinder. It can be installed as short as possible without becoming too long.

In addition, since the brake master cylinder functions as a protector of a rigid structure that avoids direct hitting of other functional components in the engine room to the return fuel control device in the case of a frontal collision of the vehicle, the return fuel control device is exclusively used. Protection measures at the time of vehicle collision can be taken without using a protector, and since the fuel filter is configured independently, the protector of the fuel filter can be made as small as possible and the occupied space can be reduced. . Furthermore, the sub for the front side member
The connecting part of the frame is almost the same as the return fuel control device.
Since it is set to the front-back position, the return fuel control device
Together with the brake master cylinder, in the event of a vehicle frontal collision
Front side member front and rear crash error
Oh, it can be placed outside and therefore the return fuel control device
And take thorough measures to protect the brake master cylinder from collision.
You can

According to the second aspect, in addition to the effect of the first aspect, a plurality of hose connectors of the fuel filter are provided on the front surface of the fuel filter and adjacent to the projected front surface of the fuel filter. The fuel hose connection work to the hose connector can be easily performed from the front, the hose connector on the vehicle center side can be prevented from wrapping behind the engine accessory on the engine body side, and the hose connector on the vehicle side can be avoided. Can be arranged far from the brake master cylinder on the side of the fuel filter, so that the hose connector can be prevented from interfering with the engine accessory and the brake master cylinder at the time of a vehicle collision, and the reliability can be further improved.

[0015]

According to claim 3 , in addition to the effect of claim 1 or 2 , the return fuel control device is an important safety component.
Since the clutch damper is attached to the clutch damper bracket, which is a rigid component for attaching the clutch damper, which is one of the two components, it is possible to more thoroughly implement the collision protection measures for the return fuel control device.

Further, since a dedicated bracket for mounting the return fuel control device is not required, the layout of the return fuel control device can be easily arranged, and an increase in the number of parts can be avoided to obtain a cost advantage. be able to.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described in detail below with reference to the drawings.

1 and 2, 1 is an engine room E
-Engine body mounted in R, 2 is the engine body 1
An engine accessory such as a vacuum pump attached to one side of the engine 3 is a dash lower panel that separates the rear part of the engine room E / R. The front of the dash lower panel 3 avoids interference with the engine body 1. Engine room E / R
A brake master cylinder 4 is fixed to one side and protrudes forward.

Reference numeral 5 denotes a fuel supply system that connects the engine body 1 and a fuel tank (not shown) to the engine body 1.
Is a segmenter as a fuel filter having both a filtering function and a draining function for the fuel supplied to the box. The segmenter 5 is fixed in a box-shaped protector 7, and the dash lower panel is attached via a bracket portion 7a of the protector 7. It is attached to the front of 3.

It is desirable that the segmenter 5 is arranged near the engine body 1, and therefore, the narrow space portion formed between the side portion of the engine body 1 and the side portion of the brake master cylinder 4 is effectively used. Then, it is arranged so as to project toward the space portion.

The segmenter 5 is provided with a plurality of hose connectors 6 for connecting the fuel hoses 8. In the present embodiment, the hose connectors 6, 6 are provided on the front surface of the segmenter 5 and the hose connectors 6 of the segmenter 5 are connected. It is provided so as to be adjacent to and substantially in the front of the projection.

Reference numeral 9 denotes a return fuel control device for controlling the return fuel from the engine body 1 to be switched between the fuel tank side and the segmenter side, which is formed separately from the segmenter 5.

This return fuel control device 9 is also provided with a plurality of hose connectors 10 for connecting the fuel hoses 8. The return fuel control device 9 is located immediately below the brake master cylinder 4 and the brake master cylinder 4 is provided. It is arranged in a state of being offset rearward from the tip of the.

In the vicinity of the brake master cylinder 4, a clutch damper 11, which is one of important safety parts, is arranged together with the parts of the brake system and the fuel supply system. The clutch damper 11 is provided at the front of the vehicle body. It is attached to a thick clutch damper bracket 13 joined to a front side member 12, which is a front-back skeleton member.

Therefore, in this embodiment, the clutch damper bracket 13, which is a rigid component having a large plate thickness, is effectively used, and the return fuel control device 9 is attached to the clutch damper bracket 13 together with the clutch damper 11. is there.

Further, a sub-frame 14 which is a skeleton member in the vehicle width direction is connected across the left and right front side members 12, and a front suspension (not shown) is connected to and supported by the sub-frame 14. In the form, the front side member 1 of the subframe 14
The connecting portion 14A for 2 is set at the substantially same position as the return fuel control device 9 in the front-rear direction.

According to the structure of the above embodiment, the return fuel control device 9 is formed separately from the segmenter 5 arranged via the protector 7, and the return fuel control device 9 of the segmenter 5 is provided. Since the brake master cylinder 4 is provided immediately below the brake master cylinder 4 adjacent to the side and offset rearward from the tip of the brake master cylinder 4, the segmenter 5 and the fuel hose 8 of the return fuel control device 9 are concentrated. The hose can be easily laid out without making the hose length of the fuel hose long, and the fuel hose can be arranged as short as possible.

Further, since the brake master cylinder 4 functions as a protector having a rigid structure for avoiding direct hitting of other functional components in the engine room to the return fuel control device 9 in the case of a frontal collision of the vehicle, the return fuel control device 9
It is possible to take protective measures against a vehicle collision without using a dedicated protector.

Moreover, since the segmenter 5 and the return fuel control device 9 are separately arranged, the protector 7 of the segmenter 5 can be miniaturized as much as possible and the occupied space can be reduced. It

Further, in the present embodiment, as described above, the plurality of hose connectors 6 of the segmenter 5 are provided on the front surface of the segmenter 5 so as to be adjacent to each other in the substantially projected front surface of the segmenter 5. 6 can easily connect the fuel hose 8 from the front, and the hose connector 6 can wrap behind the engine auxiliary machine 2 on the side of the engine body 1 or the brake master cylinder 4 on the side of the segmenter 5. These hose connectors 6 can be arranged at a large distance without being close to the hose connector 6 when a frontal collision of the vehicle occurs.
Further, it is possible to avoid the interference between the engine auxiliary machine 2 and the brake master cylinder 4, and it is possible to further improve the reliability.

Further, the return fuel control device 9 is fixed to the front side member 12 and is an important safety component.
Since the clutch damper bracket 13, which is a rigid component having a large plate thickness for mounting the clutch damper 11, which is one of the two, is effectively used and is mounted on the clutch damper bracket 13 together with the clutch damper 11, the return fuel control device 9 collides. Since protective measures can be thoroughly taken and a dedicated bracket for mounting the return fuel control device 9 is not required, the layout of the return fuel control device can be easily arranged and an increase in the number of parts can be avoided. It can be obtained at an advantageous cost.

Moreover, the sub-frame 14, which is a vehicle-width-direction frame member at the front of the vehicle body, is connected to the front side member 12, which is the vehicle-body front-back direction frame member, at a position substantially the same as the return fuel control device 9 in the front-back direction. Therefore, the return fuel control device 9 and the brake master cylinder 4 can be placed outside the front-and-rear direction crash area of the front side member 12 at the time of a frontal collision of the vehicle. Therefore, the return fuel control device 9 and the brake master cylinder 4 can be placed. It is possible to take more thorough measures against collision protection.

[Brief description of drawings]

FIG. 1 is an explanatory plan view showing an embodiment of the present invention.

FIG. 2 is a side explanatory view of the same embodiment.

FIG. 3 is an explanatory plan view showing a conventional structure.

[Explanation of symbols]

1 engine body 3 dash lower panel 4 Brake master cylinder 5 Fuel filter (Segmenter) 6 Segmenter hose connector 7 protector 9 Return fuel controller 11 clutch damper 12 Front side members 13 Clutch damper bracket 14 subframes 14A coupling part

Continuation of front page (56) Reference JP-A-4-39173 (JP, A) JP-A-3-167079 (JP, A) JP-A-7-132737 (JP, A) JP-A-56-107951 (JP , A) Actually open 2-24062 (JP, U) Actually open 1-91132 (JP, U) Actually open 62-197433 (JP, U) Actually open 59-32139 (JP, U) Actually open 60-65427 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) B60K 15/02 B62D 25/00-25/08 F02M 37/00

Claims (3)

(57) [Claims] 1. A return fuel control device is provided separately from a fuel filter projecting through a protector on a front surface of a dash lower panel toward a narrow space between an engine body side part and a brake master cylinder side part. configured, the return fuel control system just below the brake master cylinder, and, along with from the tip of the brake master cylinder is disposed at a position offset rearwardly, left and right
Subframe that is connected across the front side members
The connection part of the
A structure for disposing a fuel filter and a return fuel control device for a diesel vehicle, which is set to a position . 2. A fuel filter and return fuel for a diesel vehicle according to claim 1, wherein a plurality of hose connectors of the fuel filter are provided on the front surface of the fuel filter and adjacent to the projected front surface of the fuel filter. Arrangement structure of control device. To 3. A clutch coupled to return fuel control device to the front side members damper brackets, Moreover claim 1, characterized in that mounted with the clutch damper
2 is an arrangement structure of the fuel filter and the return fuel control device of the diesel vehicle according to 2 .