JP2008038684A - Fuel distribution pipe structure in multiple throttle body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve working efficiency of a fuel injection valve arranged in an adjacently arranged multiple throttle body. <P>SOLUTION: A distribution member D is formed by setting one side end surface 1 and the other side end surface 2 in parallel, and a distribution passage 3, a throttle body installing hole 7 and a valve installing hole 6 connected to an inflow passage 8, are bored toward the other side end surface from the one side end surface. A valve support member S is formed by setting one side end surface 10 and the other side end surface 11 in parallel, and a valve support boss 12 is continuously arranged along the other side end surface. A supply passage 13 is opened at one end in the other side end surface, and the other end continues with a valve support hole 14, and an installation screw hole 15 and an installation hole 16 are bored toward the other side end surface from the one side end surface. The distribution member D is arranged in one side opposed side wall T1a and the other side opposed side wall T2a, and is threadably attached to one side and other side throttle bodies T1 and T2 via the throttle body installing hole. The other side end surface of the valve support member is threadably attached on the one side end surface of the distribution member, and the other side injection valve Ja is sandwiched by the valve support member and the other side throttle body. The other side end surface of the valve support member is threadably attached on the other side end surface of the distribution member, and one side injection valve Jb is sandwiched by the valve support member and the one side throttle body. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a fuel distribution pipe that supplies fuel boosted by a fuel source toward a fuel injection valve mounted on the throttle body, and in particular, a plurality of throttle bodies are fixedly arranged adjacent to the side, The present invention relates to a fuel distribution pipe structure in a multiple throttle body that distributes and supplies fuel to each fuel injection valve mounted on each throttle body.

Japanese Patent Application No. 2006-039086 filed by the present applicant is known as a fuel distribution pipe in a conventional multiple throttle body. According to this, a fuel distribution pipe structure in a multiple throttle body in which a plurality of throttle bodies provided with fuel injection valves are provided side by side and fixedly arranged, and fuel is supplied from the fuel distribution pipes toward each fuel injection valve. The fuel distribution pipe is connected to the fuel distribution passage formed therein, and is connected to the first injection valve insertion hole that opens toward one side A, and the fuel distribution passage that opens toward the other side. The second injection valve insertion hole, the first attachment flange portion that protrudes from one side wall toward one side A, the second attachment flange portion, and the second attachment flange portion that protrudes from the other side wall toward the other side B are formed. The first and second support arm portions are provided on the other side wall of the first throttle body, which are adjacent to each other. One side wall of the second throttle body that is formed to protrude is adjacent to A third support arm portion and a fourth support arm portion directed to one side A are formed so as to protrude, and the fuel distribution pipe is provided with the other side wall of the first throttle body and the one side wall of the second throttle body T2 which are adjacent to each other. And a rear end portion of the first fuel injection valve mounted on the first throttle body is inserted into the first injection valve insertion hole, and the second throttle is inserted into the second injection valve insertion hole. A rear end portion of a second fuel injection valve to be mounted on the body is inserted, and further, a first mounting flange portion, a first support arm portion, a second mounting flange portion, a second support arm portion, and a third mounting flange portion; A technique is disclosed in which the third support arm portion, the fourth mounting collar portion, and the fourth support arm portion are screwed and fixed with a screw member.
Japanese Patent Application No. 2006-039086

  According to the fuel distribution pipe structure in such a conventional multiple throttle body, replacement of the fuel injection valve or maintenance work thereof cannot be simplified. This is due to the following reason. That is, a first mounting rod and a first support arm for screwing the fuel distribution pipe and each throttle body, a second mounting rod and a second support arm, a third mounting rod and a third support arm, Each of the fuel injections is made by removing the screw disposed between the fourth mounting flange and the fourth support arm, removing the fuel distribution pipe from each throttle body, and then moving each throttle body downward. This is because the valve needs to be removed from the fuel distribution pipe. According to the above, the adhering of the adjacent throttle body is released and the free state is established, so that after the maintenance operation of the fuel injection valve, the adjoining operation of each throttle body is required again. There is a drawback that the maintenance work cannot be easily performed.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a fuel distribution pipe structure in a multiple throttle body that can improve the maintenance workability of the fuel injection valve.

  In order to achieve the above object, the fuel distribution pipe structure in the multiple throttle body according to the present invention is such that a throttle body having a fuel injection valve is disposed adjacent to the side and opposed to each other, and fuel distribution toward each fuel injection valve is performed. In the fuel distribution pipe structure in the multiple throttle body to which fuel is supplied from the pipe, the distribution member in which the one side end surface forming the flat surface and the other side end surface forming the flat surface are formed in parallel is from the one side end surface to the other side. A fuel distribution path, a throttle body mounting hole, and an injection valve support member mounting hole are penetrated and drilled toward the end face, and a fuel inflow path is communicated and drilled toward the fuel distribution path. On the other hand, the injection valve support member in which the one side end surface forming the flat surface and the other side end surface forming the flat surface are formed in parallel is provided with the injection valve support boss extending along the other side end surface. One end opens to the other end face A fuel supply passage is drilled through the injection valve support boss whose other end opens at the lower end of the injection valve support boss, and a mounting screw hole and a mounting hole penetrate from the one end face to the other end face. The distributing member is disposed between one side opposing side wall of the adjacent one side throttle body and the other side opposing side wall of the other side throttle body, and the one side throttle body and the other side through the throttle body mounting hole. The fuel distribution path of the distribution member and the fuel supply path of the injection valve support member are arranged by screwing and fixing to the throttle body, and further, the other end surface of the injection valve support member is in contact with the one end surface of the distribution member. And the other end face of the injection valve support member in contact with the other end face of the distribution member to communicate the fuel distribution path of the distribution member and the fuel supply path of the injection valve support member. Distribution department The injection valve support member mounting hole, the injection valve support member mounting female screw hole, the injection valve support member screwed and fixed to the distribution member through the mounting hole, and further arranged on the one side throttle body The fuel injection valve is sandwiched between the injection valve support hole formed in the one side throttle body and the injection valve support hole of the injection valve support member, and the other side fuel injection valve arranged in the other side throttle body is The first feature is that the injection valve support hole formed in the throttle body is sandwiched between the injection valve support hole of the injection valve support member.

  According to the present invention, in addition to the first feature, the injection valve support member disposed on the one side end surface of the distribution member and the injection valve support member disposed on the other side end surface of the distribution member are provided as a single injection. The second feature is that the valve support member is shared.

  According to the fuel distribution pipe structure of the multiple throttle body of the present invention, the distribution member is held in a state of being screwed and fixed to the side walls of the adjacent one and other throttle bodies by screws inserted into the throttle body mounting holes. Is done. In such a state, the screwing between the injection valve support member and the distribution member is released by screwing the mounting screw hole of the injection valve support member, the mounting hole, and the screw inserted into the injection valve support member mounting hole of the distribution member. The In such a state, the other side fuel injection valve attached to the other side throttle body is moved to the other side throttle body by moving the other side end surface of the one injection valve support member along the one side end surface of the distribution member. More can be removed. Further, the one side fuel injection valve attached to the one side throttle body is removed from the one side throttle body by moving the other side end surface of the other injection valve support member along the other side end surface of the distribution member. Can do. As described above, the maintenance of the fuel injection valve only needs to move the other side end surface of each injection valve support member along the end surface of the distribution member by releasing the screwing between each injection valve support member and the distribution member. Maintenance work of the fuel injection valve can be performed very easily and in a short time. Also, during such work, the adjacent throttle bodies are still connected and fixed by the distribution member, so there is no need to reassemble the throttle body, and the adjacent throttle body maintains the initial assembled state. Therefore, adjustment, inspection, etc. of a throttle link mechanism arranged between adjacent throttle bodies is unnecessary. Further, the maintenance operation of the fuel injection valve can be performed with the throttle body attached to the engine.

  According to the second aspect of the present invention, a single injection valve support member is prepared, and the other side fuel injection valve is arranged by arranging the other side end surface of the injection valve support member on the one side end surface of the distribution member. The one-side fuel injection valve can be clamped by reversing the injection valve support member 180 degrees and placing the other end surface of the injection valve support member on the other end surface of the distribution member. It can be shared and manufacturing costs can be reduced.

  Hereinafter, an embodiment of a fuel distribution pipe structure in a multiple throttle body according to the present invention will be described with reference to the drawings. FIG. 1 is a front view of a distribution member used in a fuel distribution pipe structure in a multiple throttle body according to the present invention. FIG. 2 is a top plan view of FIG. FIG. 3 is a right side view of FIG. The distribution member D will be described with reference to FIGS. 1, 2, and 3. The distribution member D has a thick flange shape of, for example, about 15 millimeters, in which one side end surface 1 forming a flat surface and the other side end surface 2 forming a flat surface are formed in parallel. The following are drilled toward the side end face 2. Reference numeral 3 denotes a fuel distribution path drilled in a substantially central portion of the distribution member D. A first seal ring groove 4 is drilled to surround the fuel distribution path 3 opened in the other side end face 2, and one side end face 1. A second seal ring groove 5 is formed so as to surround the fuel distribution path 3 that is open to the front. Reference numeral 6 denotes an injection valve support member mounting hole formed on the outer side of each of the first and second seal ring grooves 4 and 5, and is formed to have a larger diameter than an outer diameter of a screw described later. Reference numeral 7 denotes a throttle body mounting hole formed on the outer side of the injection valve support member mounting holes 6 and 6, respectively. In addition, a fuel inflow passage 8 communicates and opens toward the fuel distribution passage. The fuel inflow passage 8 in this example is formed to protrude upward.

  Next, the injection valve support member S is formed by the following. FIG. 4 is a front view of the injection valve support member. FIG. 5 is a top plan view of FIG. The injection valve support member S is formed such that one end face 10 forming a flat surface and the other end face 11 forming a flat surface are formed in parallel, and the outer periphery thereof is along the other end face and obliquely downward. The injection valve support boss 12 protrudes and is continuously provided. A fuel supply path 13 is formed in the injection valve support member S. One end 13a of the fuel supply path 13 opens to the other end face 11, and the other end 13b extends to the lower end 12a of the injection valve support boss 12. It opens obliquely downward and opens into an injection valve support hole 14 into which a rear end portion of a fuel injection valve described later is inserted. In addition, a mounting screw hole 15 and a mounting hole 16 are drilled through from the one side end surface 10 toward the other side end surface 11. In FIG. 5, the mounting screw hole 15 is drilled to the right from one end 13 a of the fuel supply path 13, and the mounting hole 16 is drilled to the left from the one end 13 a of the fuel supply path 13.

  On the other hand, in the multiple throttle body, a single throttle body is disposed adjacent to the side. In FIG. 6, the one side throttle body T1 is disposed on the left side, and the other side throttle body T2 is disposed on the right side. Be placed. The one-side throttle body T1 is pierced through the intake passage 20 therein, and the intake passage 20 is opened and closed by a throttle valve 22 attached to a drive-side throttle valve shaft 21. Reference numeral 23 denotes a drive lever arranged at the end of the throttle valve shaft 21 on the drive side, and this drive lever 23 is connected via an accelerator grip, a valve opening wire, and a valve closing wire (not shown). . An injection valve support hole 24 is formed in one side opposing side wall T1a of the one side throttle body T1 facing the other side throttle body T2, and this injection valve support hole 24 is formed on the one side opposing side wall T1a. From the throttle valve 22 into the intake passage 20 below the throttle valve 22 with a tilt angle X degree obliquely to the left, and a distal end portion of a fuel injection valve to be described later is inserted and disposed. Further, a distribution member mounting flange 25 is formed from one side opposing side wall T1a of the one side throttle body T1 toward the other side throttle body T2. Reference numerals 26a and 26b denote connecting flanges formed so as to protrude from the one-side opposing side wall T1a of the one-side throttle body T1 toward the other-side throttle body T2. The other side throttle body T2 is bored through the intake passage 30 and is opened and closed by a throttle valve 32 attached to a driven side throttle valve shaft 31. Reference numeral 33 denotes a driven lever arranged at the end of the throttle valve shaft 31 on the driven side. The driven lever 33 is synchronously connected to the drive lever 23 by the throttle link mechanism L. An injection valve support hole 34 is formed in the other side opposite side wall T2a of the other side throttle body T2 facing the one side throttle body T1, and this injection valve support hole 34 is formed on the other side opposite side wall T2a. From the throttle valve 32 to the intake passage 30 below the throttle valve 32 and obliquely downward to the right with the same inclination angle X degree as described above, and the distal end portion of a fuel injection valve to be described later is inserted and disposed. Further, a distribution member mounting flange 35 is formed from the other side opposite side wall T2a of the other side throttle body T2 toward the one side throttle body T1 side. Reference numerals 36a and 36b denote connecting flanges that project from the other side opposite side wall T2a of the other side throttle body T2 toward the one side throttle body T1.

  The multiple throttle body is assembled as follows. The one side opposing side wall T1a of the one side throttle body T1 and the other side opposing side wall T2a of the other side throttle body T2 are disposed adjacent to each other, and in this state, the connecting stay 40 having a flat plate shape and each throttle body T1, T2 are disposed. The connecting lever portions 26a, 26b, 36a, 36b are screwed and fixed by bolts 41, and the drive lever 23 and the driven lever 33 are periodically linked by the throttle link mechanism 34. The distribution member D is disposed in the adjacent space between the one side facing side wall T1a of the one side throttle body T1 and the other side facing side wall T2a of the other side throttle body T2, and the distribution member mounting rod for the one side throttle body T1 is attached. And the bolt 42 are inserted into the throttle body mounting holes 7 and 7 in such a state, and are respectively inserted into the distribution member mounting flanges 25 and 35. The distribution member D is screwed between the one side opposing side wall T1a of the one side throttle body T1 and the other side opposing side wall T2a of the other side throttle body T2, and is screwed and fixed to the one side throttle body T1 and the other side throttle body T2. Is done. An elastic seal ring R such as an O-ring is disposed in the first seal ring groove 4 and the second seal ring groove 5 that open to the one end face 1 and the other end face 2 of the distribution member D.

  Next, the other side fuel injection valve Ja is inserted into the injection valve support hole 14 of the injection valve support member S (the state where the injection valve support boss 12 protrudes obliquely downward to the right in FIG. 4) in the state shown in FIG. In the state where the rear end portion J1 is inserted in an airtight manner and the injection valve support member S including the other side fuel injection valve Ja faces the other side end surface 11 to the one side end surface 1 of the distribution member D, the right end in FIG. It is arranged to move downward (indicated by A in FIG. 6). According to the movement of the diagonally downward right A, the front end portion J2 of the other side fuel injection valve Ja is hermetically inserted into the injection valve support hole 34 of the other side throttle body T2, while the other side of the injection valve support member S. The end surface 11 moves on the one side end surface 1 of the distribution member D toward the lower right side A, and the tip portion J2 of the other side fuel injection valve is inserted into the injection valve support hole 34 of the other side throttle body T2. In the completed state, the mounting screw hole 15 of the injection valve support member S is disposed to face the right injection valve support member mounting hole 6 that opens to the one end face 1 of the distribution member D, and the one end 13a of the fuel supply passage 13 is disposed. Is arranged facing the fuel distribution path 3 that opens to the one side end surface 1 of the distribution member D, and the mounting hole 16 faces the left injection valve support member mounting hole 6 that opens to the one side end surface 1 of the distribution member D. It is arranged with. Thus, the other end surface 11 of the injection valve support member S is disposed on the one end surface 1 of the distribution member D.

  Next, another injection valve support member S shown in FIG. 5 is prepared, and this injection valve support member S is 180 from the state shown by the solid line in FIG. 5 in the counterclockwise direction C in FIG. Held in a rotated state. This state is indicated by a one-dot chain line in FIGS. 5 and 6. In FIG. 5, the one side end face 10 is in the upper position, the other side end face 11 is in the lower position, and the injection valve support boss 12 is shown in FIG. The other end face 11 that projects obliquely downward to the left and that opens at one end 13a of the fuel supply passage 13 is on the front side of the page in FIG. In FIG. 4, the rear end portion J1 of the one-side fuel injection valve Jb is hermetically inserted into the injection valve support hole 14 that opens to the lower end 12a of the injection valve support boss 12 that protrudes diagonally to the left. In the state in which the injection valve support member S including the one-side fuel injection valve Jb faces the other side end surface 11 to the other side end surface 2 of the distribution member D, the left side obliquely downward (shown by B in FIG. 6). ). According to the movement of the left diagonally downward B, the front end portion J2 of the one side fuel injection valve Jb is hermetically inserted into the injection valve support hole 24 of the one side throttle body T1, while the other side of the injection valve support member S. The end surface 11 moves on the other side end surface 2 of the distribution member D in an obliquely downward left direction B, and the tip portion J2 of the one-side fuel injection valve is inserted into the injection valve support hole 24 of the one-side throttle body T1. In the completed state, the mounting screw hole 15 of the injection valve support member S is arranged facing the injection valve support member mounting hole 6 that opens to the other end surface 2 of the distribution member D, and the one end 13a of the fuel supply path 13 is connected to the distribution member. D is disposed facing the fuel distribution path 3 that opens to the other end surface 2 of D, and the mounting hole 16 is disposed to face the injection valve support member mounting hole 6 that opens to the other end surface 2 of the distributing member D. According to the above, the other end surface 11 of the injection valve support member S is disposed facing the other end surface 2 of the distribution member D.

  As described above, the other end surface 11 of the one injection valve support member S1 is disposed on the one end surface 1 of the distribution member D, and the other injection valve support member S2 is disposed on the other end surface 2 of the distribution member D. In the state where the side end face 11 is arranged, a bolt is directed from the mounting hole 16 of one injection valve support member S1 toward the injection valve support member mounting hole 6 of the distribution member D and the mounting screw hole 15 of the other injection valve support member S. 45 is screwed. Further, a bolt 46 is screwed from the attachment hole 16 of the other injection valve support member S2 toward the injection valve support member attachment hole 6 of the distribution member D and the screw hole 15 of the one injection valve support member S1. For ease of explanation, one injection valve support member S1 is called a lower injection valve support member in FIG. 7, and the other injection valve support member S2 is called an upper injection valve support member in FIG.

  According to the above, the other end surface 11 of the one injection valve support member S1 is screwed on the one end surface 1 of the distribution member D, and the other fuel injection valve Ja is connected to the one injection valve support member S1 and the other side. The other end face 11 of the other injection valve support member S2 is screwed on the other end face 2 of the distribution member D, and the one fuel injection valve Ja is supported by the other injection valve. It is clamped by the member S2 and the one-side throttle body T1.

  The fuel inflow path 8 of the distribution member D and the discharge path of the fuel pump (not shown) are connected by the fuel supply pipe 50. The fuel whose pressure has been increased to a constant pressure by the fuel pump is supplied to the fuel supply pipe 50, the fuel inflow The fuel is supplied toward the fuel distribution path 3 of the distribution member D through the path 8. A part of the fuel supplied into the fuel distribution path 3 is supplied from the one end face 1 of the distribution member D to the other side fuel injection valve Ja via the fuel supply path 13 of one injection valve support member S1. The other side fuel injection valve Ja is injected into the intake passage 30 of the other side throttle body T2. The other part of the fuel supplied into the fuel distribution path 3 is supplied from the other end face 2 of the distribution member D to the one-side fuel injection valve Jb via the fuel supply path 13 of the other injection valve support member S2. The fuel is injected into the intake passage 20 of the one-side throttle body T1 from the one-side fuel injection valve Jb.

  Here, replacement / inspection of the fuel injection valve is performed as follows. First, the bolts 45 and 46 are loosened, and the screwing of the one injection valve support member S1, the other injection valve support member S2 and the distribution member D is released. In the state in which the other end surface 11 of the one injection valve support member S1 is substantially in contact with the one end surface 1 of the distribution member D, the one fuel injection valve support is directed toward the upper left side as indicated by a one-dot chain oblique line A. The member S1 is pulled up. According to the above, the front end portion J2 of the other side fuel injection valve Ja can be taken out from the injection valve support hole 34, and in this state, the rear end portion J1 is taken out from the injection valve support hole 14 of one injection valve support member S1. Thus, replacement / inspection of the other-side fuel injection valve Ja can be performed. Further, in the state where the other end surface 11 of the other injection valve support member S2 is substantially in contact with the other end surface 2 of the distribution member D, the other fuel injection valve support is directed upward and obliquely to the right indicated by a one-dot chain oblique line B. The member S2 is pulled up. According to the above, the front end portion J2 of the one-side fuel injection valve Jb can be taken out from the injection valve support hole 24, and in this state, the rear end portion J1 is taken out from the injection valve support hole 14 of the other injection valve support member S2. Thus, replacement / inspection of the one-side fuel injection valve Jb can be performed. According to the above, the one-side throttle body T1 and the other-side throttle body T2 remain connected to each other by the connecting stay 40 and the distribution member D, and the one-side and other-side fuel injection valves Jb, Ja are exchanged. -Since the inspection can be performed, the maintenance work of the fuel injection valve can be performed extremely easily and in a short time. In addition, the maintenance operation of the fuel injection valve can be performed while the one side and the other side throttle bodies T1 and T2 are connected, so that the throttle link mechanism and the like disposed between the two throttle bodies can be removed and re-installed. Assembly is no longer necessary.

  In the case of a twin throttle body in which the one-side throttle body T1 and the other-side throttle body T2 are disposed adjacent to each other, generally, the one-side opposed side wall T1a and the other side of the throttle bodies T1 and T2 are opposed to each other. A fuel injection valve is disposed on the opposite side wall T2a, and the one side fuel injection valve Jb and the other side fuel injection valve Ja are disposed with the same inclination angle X degrees with respect to the longitudinal axis of the intake passage. According to the above, when the injection valve support member S including the injection valve support boss 12 having the inclination angle X degrees with respect to the vertical line as shown in FIG. 4 is prepared, the other side fuel body faces the other side throttle body T2. One injection valve support member S1 that sandwiches the injection valve Ja can be formed, and the injection valve support member is rotated 180 degrees in the direction C in FIG. The other injection valve support member S2 that holds Jb can be formed. According to the above, one injection valve support member S1 and the other injection valve support member S2 can be shared, and an inexpensive fuel distribution pipe structure can be provided.

The front view which shows one Example of the distribution member used for the fuel distribution piping structure of this invention. FIG. 2 is a top plan view of FIG. 1. The right view of FIG. The front view which shows one Example of the injection valve support member used for the fuel distribution piping structure of this invention. FIG. 5 is a top plan view of FIG. 4. The front view which shows one Example of the fuel distribution piping structure in the multiple throttle body which becomes this invention. The top view of the principal part of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 One side end surface 2 Other side end surface 3 Fuel distribution path 6 Injection valve support member mounting hole 7 Throttle body mounting hole 8 Fuel inflow path 10 One side end surface 11 Other side end surface 12 Injection valve support boss 13 Fuel supply path 14 Injection valve support hole 15 Mounting screw hole 16 Mounting hole D Distribution member Ja Other side fuel injection valve Jb One side fuel injection valve S Injection valve support member T1 One side throttle body T2 Other side throttle body

Claims (2)

  In a fuel distribution pipe structure in a multiple throttle body in which a throttle body having a fuel injection valve is disposed adjacent to the side and opposed to each other, and fuel is supplied from the fuel distribution pipe toward each fuel injection valve, a flat surface is formed. The distribution member D in which the side end surface 1 and the other side end surface 2 forming a flat surface are formed in parallel is directed from the one side end surface 1 toward the other side end surface 2, and the fuel distribution path 3 and the throttle body mounting holes 7, 7. And the injection valve support member mounting holes 6 and 6 are penetrated and drilled, and the fuel inflow channel 8 is communicated and drilled toward the fuel distribution channel 3, while one side end surface forming a flat surface. The injection valve support member S, which is formed in parallel with the other end surface 11 forming a flat surface, has an injection valve support boss 12 extending along the other end surface 11 and one end at the other side. Opened to the end surface 11, the other end is the lower end 1 of the injection valve support boss 12. a fuel supply passage 13 connected to the injection valve support hole 14 opened in a is further drilled, and a mounting screw hole 15 and a mounting hole 16 are drilled from the one side end face 10 toward the other end face 11; The distribution member is disposed between the one side opposing side wall T1a of the adjacent one side throttle body T1 and the other side opposing side wall T2a of the other side throttle body T2, and one side through the throttle body mounting holes 7, 7. The throttle body T1 and the other side throttle body T2 are screwed and fixed, and further, the other end surface 11 of the injection valve support member S is placed on one side end surface 1 of the distribution member D to contact the distribution member D. The fuel distribution path 3 communicates with the fuel supply path 13 of the injection valve support member S, and the other end face 11 of the injection valve support member S is disposed in contact with the other end face 2 of the distribution member D. Fuel distribution 3 and the fuel supply passage 13 of the injection valve support member S are communicated. In this state, the injection valve support member attachment holes 6 and 6 of the distribution member D, the attachment screw hole 15 of the injection valve support member S, and the attachment hole 16 are provided. The injection valve support members S and S are screwed and fixed to the distribution member D, and the one-side fuel injection valve Jb arranged in the one-side throttle body T1 is formed in the one-side throttle body T1. An injection that is sandwiched between the injection valve support hole 24 and the injection valve support hole 14 of the injection valve support member S and is disposed in the other side throttle body T2, and the other side fuel injection valve Ja is provided in the other side throttle body T2. A fuel distribution pipe structure in a multiple throttle body, which is sandwiched between the valve support hole 34 and the injection valve support hole 14 of the injection valve support member S. The injection valve support member S disposed on the one end surface 1 of the distribution member and the injection valve support member S disposed on the other end surface 2 of the distribution member D are shared by a single injection valve support member. 2. A fuel distribution pipe structure in a multiple throttle body according to claim 1.

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