JP2003049740A - Fuel injection valve holding device - Google Patents

Abstract

(57) Abstract: A fuel injection valve holding device capable of holding a fuel injection valve having a fuel outlet side end fitted into a mounting hole of an intake pipe by a simple operation without using a fixing member such as a screw. I will provide a. SOLUTION: A joint cap 13 fitted on an inner periphery of an annular fixed holder 11 arranged around a fuel inlet side end Ia of the fuel injection valve I is fitted on an outer periphery of the fuel inlet side end Ia of the fuel injection valve I. To form a plurality of bayonet arms 20 and 21 on the outer periphery of the joint cap 13.
By fitting the joint cap 13 into the fixed holder 11 and rotating the joint cap 13 by a predetermined angle after the fitting, the bayonet grooves 14 and 15 with which the bayonet arms 20 and 21 are engaged are formed in the fixed holder 11. Then, a detent means 25 for maintaining the engaged state is provided between the joint cap 13 and the fixed holder 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a fuel injection valve holding device for holding a fuel injection valve having a fuel outlet side end portion mounted in a mounting hole of an intake passage structure of an engine.

[0002]

2. Description of the Related Art In a conventional fuel injection valve holding device, as disclosed in, for example, Japanese Unexamined Patent Publication No. 4-350356, a fuel injection device in which an end portion on the fuel outlet side is mounted in a mounting hole of an intake passage forming body The fuel distribution port of the fuel rail is fitted to the fuel inlet side end of the valve, and the support bracket of the rail is fixed to the intake passage structure of the engine with bolts.

[0003]

In such a conventional fuel injection valve holding device, it is troublesome to screw the bolts,
It is hard to say that it is easy to assemble.

The present invention has been made in view of the above circumstances, and provides a fuel injection valve holding device capable of holding a fuel injection valve by a simple operation without using a fixing member such as a bolt. The purpose is to provide.

[0005]

In order to achieve the above object, the present invention provides a fuel injection valve for holding a fuel injection valve having a fuel outlet side end mounted in a mounting hole of an intake passage structure of an engine. In the holding device, on the inner circumference of an annular fixed holder that is connected to the intake passage structure and is arranged around the fuel inlet side end of the fuel injection valve, and on the fuel inlet side end outer circumference of the fuel injection valve. Fitting a joint cap that fits and connects the external fuel conduit and the fuel injection valve, and forms a plurality of bayonet arms protruding radially outward at circumferential intervals on the outer circumference of the joint cap. , A plurality of bayonet grooves each having a vertical groove and a lateral groove into which the respective bayonet arms are sequentially engaged according to the fitting of the joint cap into the fixed holder and the rotation of the joint cap after the fitting is rotated by a predetermined angle. To Forming a constant holder, the bayonet arms that the detent means for holding the engagement with the lateral grooves provided between the joint cap and the fixing holder first
It is a feature of.

According to the first feature, the joint cap is connected to the fixed holder to hold the fuel injection valve by a very simple operation of twisting the joint cap after fitting the joint cap into the fixed holder. You can Therefore, it is possible to efficiently hold the fuel injection valve in a shorter time than the conventional screwing. Especially for holding fuel injectors,
Since the joint cap that introduces fuel into the valve is used, the number of parts can be reduced and the cost can be reduced.

In addition to the first feature of the present invention, in addition to the first feature, when the detent means is engaged with a fixed locking portion formed on an inner peripheral surface of a fixed holder and the bayonet arm is engaged with the lateral groove, A second feature is that the fixed locking portion is configured to be elastically engaged with the movable locking portion formed on the joint cap.

According to the second feature, when the bayonet arm is engaged with the lateral groove, the movable engaging portion and the fixed engaging portion are automatically engaged with each other to ensure the return rotation of the joint cap. Can be prevented. In addition, since the movable locking portion and the fixed locking portion are formed integrally with the joint cap and the fixed holder, respectively, they do not increase the number of parts and can contribute to simplification of the structure.

Further, in addition to any one of the first and second characteristics, the present invention also serves as a fuel introduction pipe, wherein the bayonet arm is integrally projectingly provided on an outer peripheral surface of a joint cap to take in fuel from the outside. The third feature is what was done.

According to the third feature, since the fuel introducing pipe is used as the bayonet arm, the number of dedicated bayonet arms can be reduced correspondingly, and the structure can be simplified.

Furthermore, in addition to any of the first to third characteristics, the present invention has a fourth characteristic in that the thicknesses of the plurality of bayonet arms along the axial direction of the joint cap are different from each other. To do.

According to the fourth feature, the corresponding bayonet arms and bayonet grooves are surely engaged without error,
The fuel introduction pipe can always be oriented in a fixed direction.

In addition to any one of the first to third characteristics, the present invention has a fifth characteristic in that the positions of the plurality of bayonet arms along the axial direction of the joint cap are different from each other. To do.

Also according to the fifth feature, the corresponding bayonet arms and the bayonet grooves can be surely engaged without error, and the fuel introducing pipe can be always directed in a fixed direction.

Further, in addition to any one of the first to fifth aspects, the present invention has a sixth characteristic in that a fixed holder is integrally formed with the intake structure.

According to the sixth feature, the fixed holder integrated with the intake structure does not increase the number of parts, and the structure of the fuel injection valve holding device can be simplified.

Further, in addition to any one of the second to sixth aspects, the seventh aspect of the present invention is that the joint cap is made of synthetic resin.

According to the seventh feature, the number of parts is not increased by the bayonet arm and the movable locking portion, the structure can be simplified, and the movable locking portion can be fixed to the movable locking portion. The elasticity in the radial direction for engaging with the locking protrusion can be easily imparted.

The intake passage structure corresponds to an intake pipe 4 in an embodiment of the present invention described later, and the movable locking portions and fixed locking portions are movable locking claws 30 and fixed locking portions 31. Respectively correspond to.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below based on an embodiment of the present invention shown in the accompanying drawings.

FIG. 1 is a perspective view of a fuel injection valve holding device according to the present invention, FIG. 2 is a vertical sectional side view of the fuel injection valve holding device, FIG. 3 is a view taken in the direction of arrow 3 in FIG. 2, and FIG. 4 is a sectional view taken along line 4-4, FIG. 5 is a view taken in the direction of arrow 5 in FIG. 3, FIG. 6 is a view taken in the direction of arrow 6 in FIG.
(A) is a plan view of a fixed holder of the fuel injection valve holding device,
7B is a cross-sectional view taken along the line BB of FIG. 7A, FIG.
FIG. 8 is a side view of a joint cap of the fuel injection valve holding device, FIG. 8B is a sectional view taken along the line BB of FIG. 8A, and FIG. 9 is an assembly procedure explanatory diagram of the fuel injection valve holding device.

First, referring to FIG. 1 and FIG.
An intake port 2 opened and closed by an intake valve (not shown) is formed in the cylinder head 1, and an intake pipe 4 having an intake passage 3 communicating with the intake port 2 is joined to one side surface of the cylinder head 1. It A throttle valve 5 that opens and closes the intake passage 3 is pivotally supported by the intake pipe 4. Further, a fuel introduction port 6 opening to the intake passage 3 downstream of the throttle valve 5 and a mounting hole 7 coaxially connected to the fuel introduction port 6 are provided in the intake pipe 4, and the mounting hole 7 is provided with the electromagnetic fuel injection valve I. The fuel outlet side end portion Ib is fitted through the seal member 8. The fuel injection valve I is held by the fuel injection valve holding device H of the present invention.

The fuel injection valve holding device H comprises a fixed holder 11 integrally formed on the upper end of a bracket 10 standing upright from the outer surface of the intake pipe 4, and a fuel inlet end Ia of the fuel injection valve I.
A joint cap 13 that is fitted to the outer periphery and connects the external fuel conduit 12 and the fuel injection valve I is a component. The bracket 10 and the fixed holder 11 are the intake pipe 4
It is integrally molded with. In the figure, reference numeral Ic indicates a fuel injection valve I.
Shows a coupler of.

As shown in FIGS. 3, 4, 6 and 7,
The fixed holder 11 has an annular shape, and a peripheral wall thereof has a plurality of bayonet grooves 14 each including longitudinal grooves 14a and 15a extending in the axial direction and lateral grooves 14b and 15b extending in the circumferential direction.
15 are formed at equal intervals in the circumferential direction. In the illustrated example, there are two bayonet grooves, one of which is called the first bayonet groove 14 and the other is called the second bayonet groove 15.

As shown in FIGS. 3, 4, 5 and 8, the lower end surface of the joint cap 13 has a connecting hole into which the fuel inlet end Ia of the fuel injection valve I is rotatably fitted. A seal member 8 is provided between the connecting hole 16 and the fuel inlet side end portion Ia of the fuel injection valve I. Also joint cap 13
A fuel introduction pipe 20 protruding in the radial direction is integrally provided on the upper end of the fuel pipe 12, and a fuel conduit 12 connected to the discharge port of the high-pressure fuel pump is connected to this. A fuel passage 19 passing through the fuel introducing pipe 20 opens at the center of the connecting hole 16 and communicates with the fuel inlet of the fuel injection valve I.

The outer peripheral surface of the joint cap 13 is formed so as to be rotatably fitted to the inner peripheral surface of the fixed holder 11, and the outer peripheral surface of the joint cap 13 is formed in the first and second bayonet grooves 14 and 15. Correspondingly, a plurality of bayonet arms 20 and 21 protruding outward in the radial direction are formed. The plurality of bayonet arms 20 and 21 are two in the illustrated example, one corresponding to the first bayonet groove 14 is the second bayonet arm 20, and one corresponding to the second bayonet groove 15 is the second.
I will call it the bayonet arm 21. The first bayonet arm 20 is also used as the fuel introduction pipe 20, and its length is sufficiently longer than the length of the second bayonet arm 21.

When the connecting hole 16 of the joint cap 13 is fitted to the fuel inlet side end portion Ia of the fuel injection valve I, the first and second bayonet arms 20 and 21 have the first and second bayonet grooves. It is possible to pass through the vertical grooves 14a, 15a of 14, 15, and after the fitting, the joint cap 13 is rotated by a predetermined angle in a certain direction, that is, twisted, so that the first
And, the second bayonet arms 20 and 21 can be engaged with the lateral grooves 14b and 15b of the first and second bayonet grooves 14 and 15, respectively. In particular, the lateral groove 14b of the first bayonet groove 14
The entrance side half of the is wide and the first bayonet arm 20
Is easily received, and the terminal half of the lateral groove 14b is narrowed so that the first bayonet arm 20 can be fitted without play.

The first bayonet arm 20 and the second bayonet arm 21 are different in thickness along the axial direction of the joint cap 13 from t> t ', or the position along the axial direction of the joint cap 13 is h. > H 'and different from each other, corresponding to the first and second
Bayonet grooves 14 and 15 are also formed. By doing so, the first bayonet arm 20 is surely engaged with the first bayonet groove 14 and the second bayonet arm 21 is engaged with the second bayonet groove 15, respectively, and the fuel introduction pipe 20 is always kept constant. It is possible to turn in the direction.

Fixed holder 11 and joint cap 1
Between the first and second bayonet arms 20, 21,
And lateral grooves 14b, 15b of the second bayonet grooves 14, 15
A detent means 25 for holding the engaged state up to the end of is provided. The rotation stopping means 25 is formed integrally with the upper end surface of the joint cap 13 and is arranged in plural at equal intervals in the circumferential direction (two in the illustrated example).
And a plurality of fixed locking claws 31 and 31 formed on the inner peripheral surface of the fixed holder 11 corresponding thereto. Each of the movable locking claws 30 has an arched shape that extends in the circumferential direction of the joint cap 13 by connecting a base end thereof to a column 32 projectingly provided on the upper surface of the joint cap 13. A joint cap 13 including a pair of such movable locking claws 30
Are integrally formed by using synthetic resin as a material, so that the movable locking claws 30 are given elasticity especially in the radial direction.

On the other hand, the fixed locking claw 31 is used for the fixed holder 11
One surface 31a along the circumferential direction of is a slope, and the other surface 31a
b is a cliff, and the first and second bayonet arms 2
When 0 and 21 are inserted into the vertical grooves 14a and 15a of the first and second bayonet grooves 14 and 15, the restriction projection 33 that restricts the rotation direction of the joint cap 13 faces the cliff 31b and is movable and locked. It is formed on the outer surface of the claws 30, 30.

Next, the operation of this embodiment will be described.

In the mounting hole 7 of the intake pipe 4, the fuel outlet side end portion Ib is formed.
In order to hold the fuel injection valve I fitted with the first and second bayonet arms 20, 21 as shown in FIG.
The vertical grooves 14a of the first and second bayonet grooves 14 and 15,
While fitting the joint cap 13 in the fixed holder 11 in alignment with 15a, the connection hole 16 of the joint cap 13 is fitted to the outer periphery of the fuel inlet side end Ia of the fuel injection valve I, and both of them 7, The O-ring 17 is interposed between Ia.

The first and second bayonet arms 20 and 21 are provided with vertical grooves 14a and 15 of the first and second bayonet grooves 14 and 15, respectively.
When it is inserted to the bottom of a, the regulating projections 33 of the movable locking claws 30, 30 are formed on the cliff 31b of the fixed locking claws 31, 31.
Since they face each other, the joint cap 13 can rotate only in the direction A of the lateral grooves 14b and 15b of the first and second bayonet grooves 14 and 15. Therefore, by taking a picture of the first bayonet arm 20 projecting long, that is, the fuel introduction pipe 20, and twisting the joint cap 13 in the direction A, the first and second bayonet arms 20 and 21 are moved to the first and second bayonet grooves. The lateral grooves 14b and 15b of 14 and 15 are locked to the end. In particular, as clearly shown in FIG. 6, the groove width is narrow on the terminal end side of the first bayonet groove 15, and the first bayonet arm 20 engages without rattling, so that the engagement causes the joint cap 13 and the fuel injection. The axial position of the valve I can be determined.

The first and second bayonet arms 20 and 21 are formed by the lateral grooves 14b and 15 of the first and second bayonet grooves 14 and 15, respectively.
When locked to the end of b, the detent means 25 automatically functions to prevent the return rotation of the joint cap 13. That is, the first and second bayonet arms 20, 21 are the first
And lateral grooves 14b, 15b of the second bayonet grooves 14, 15
Each movable locking claw 30 bends inward in the radial direction while sliding the tip of the movable locking claw 30 onto the slope 31a of each fixed locking claw 31 while climbing up the slope 31a. The claw 30 is restored outward in the radial direction by its own elastic force and faces the cliff 31b opposite to the slope 31a. As a result, the tip end of each movable locking claw 30 contacts the cliff 31b of the fixed locking claw 31 to prevent the joint cap 13 from returning and rotating.

Thus, the joint cap 13 has the first and second bayonet arms 2 by means of the rotation stopping means 25.
0, 21 and the lateral grooves 14b, 15b of the first and second bayonet grooves 14, 15 are held in engagement with each other, and do not separate from the fixed holder 11 even when subjected to vibration or the like, so the fuel injection valve I Can be reliably maintained at the determined axial position.

Since the fuel injection valve I and the joint cap 13 can rotate relative to each other, the direction of the coupler Ic can be adjusted by rotating the fuel injection valve I by an appropriate angle even after the joint cap 13 is attached.

In this way, the joint cap 13 is
After fitting into the fixed holder 11, the joint cap 13 is fixed to the fixed holder 11 by an extremely simple operation of twisting.
Since the fuel injection valve I can be held by connecting to
The fuel injection valve I can be held more efficiently than the conventional screwing. In particular, since the joint cap 13 that introduces the fuel into the valve I is used for holding the fuel injection valve I, the number of parts can be reduced and the cost can be reduced.

Further, since the fuel introduction pipe 20 is used as the first bayonet arm 20, the number of dedicated bayonet arms 15 can be reduced by that amount and the structure can be simplified.

Further, since the rotation preventing means 25 is constructed by facing the movable locking claw 30 of the joint cap 13 to the cliff 31b of the fixed locking claw 31 on the inner peripheral surface of the fixed holder 11, the joint cap 13 is returned. Surely prevent rotation,
The fuel injection valve I can be stably held in a fixed position.

Further, since the fixed holder 11 is formed integrally with the intake pipe 4, the fixed holder 11 does not increase the number of parts, and the structure of the fuel injection valve holding device H can be simplified.

Further, the first and second bayonet arms 20, 2
Since the joint cap 13 including the first and the movable locking claws 30 and 30 is integrally molded by using synthetic resin as a material, the first and second bayonet arms 20 and 21 and the movable locking claws 30 and 30 are used as parts. Not only the number of points is not increased, but also the structure can be simplified, and the movable locking claws 30, 30 can be easily provided with elasticity in the radial direction for engaging with the fixed locking claw 31. can do.

When taking out the fuel injection valve I for maintenance or the like, the first and second movable locking claws 3 facing the vertical grooves 14a, 15a of the first and second bayonet grooves 14, 15 are taken out.
The movable locking claws 30, 30 are fixedly locked to each other by pressing the outer side surfaces of the movable locking claws 30 and 30 inward in the radial direction.
When the joint cap 13 is detached from the fuel injection valves I and 31, and the joint cap 13 is operated in the state opposite to that in the previous step, the joint cap 13 can be removed from the fixed holder 11 and the fuel injection valve I can be taken out.

The present invention is not limited to the above embodiment, and various design changes can be made without departing from the scope of the invention.

[0044]

As described above, according to the first feature of the present invention, the fuel injection valve holding means for holding the fuel injection valve having the fuel outlet side end portion mounted in the mounting hole of the intake passage structure of the engine is held. In the device, the fuel injection valve is fitted to the inner periphery of an annular fixed holder that is connected to the intake passage structure and arranged around the fuel inlet side end of the fuel injection valve. The joint caps that connect the external fuel conduits and fuel injection valves are fitted together to form a plurality of bayonet arms that project radially outward at circumferential intervals on the outer circumference of the joint caps. According to the fitting of the joint cap into the fixed holder and the rotation of the joint cap after the fitting is rotated by a predetermined angle, a plurality of bayonet grooves, which are vertical grooves and lateral grooves with which the bayonet arms are sequentially engaged, are formed. Fixed holder Since the detent means that is formed and holds the engagement state of the bayonet arm with the lateral groove is provided between the joint cap and the fixed holder, it is extremely easy to twist the joint cap after fitting it to the fixed holder. By performing a proper operation, the joint cap can be connected to the fixed holder to hold the fuel injection valve, and thus the fuel injection valve can be held efficiently in a short time.
In particular, since the joint cap that introduces fuel into the fuel injection valve is used to hold the fuel injection valve, the number of parts can be reduced and the cost can be reduced.

Further, according to the second feature of the present invention, the first
In addition to the above feature, the detent means is elastically engaged with the fixed locking portion formed on the inner peripheral surface of the fixed holder and the fixed locking portion when the bayonet arm is engaged with the lateral groove. Since it is configured with the movable locking portion formed on the joint cap so as to fit, when the bayonet arm is engaged with the lateral groove, the movable locking portion and the fixed locking portion are automatically engaged with each other, It is possible to reliably prevent the return rotation of the joint cap. In addition, since the movable locking portion and the fixed locking portion are formed integrally with the joint cap and the fixed holder, respectively, they do not increase the number of parts and can contribute to simplification of the structure.

Furthermore, according to the third aspect of the present invention,
In addition to the first or second feature, the bayonet arm is integrally projected on the outer peripheral surface of the joint cap,
Since it was also used as a fuel introduction pipe that takes in fuel from the outside,
Since the fuel introduction pipe is used as the bayonet arm, the number of dedicated bayonet arms can be reduced accordingly, and the structure can be simplified.

Furthermore, according to the fourth feature of the present invention,
In addition to any one of the first to third characteristics, the thicknesses of the plurality of bayonet arms along the axial direction of the joint cap are different from each other, so that the corresponding bayonet arms and bayonet grooves can be reliably and reliably engaged. The fuel introduction pipe can always be oriented in a fixed direction by combining the two.

Furthermore, according to the fourth feature of the present invention,
In addition to any one of the first to third characteristics, the positions of the plurality of bayonet arms along the axial direction of the joint cap are different from each other, so that the corresponding bayonet arms and bayonet grooves can be reliably and reliably engaged. The fuel introduction pipe can always be oriented in a fixed direction by combining the two.

Furthermore, according to the fifth feature of the present invention,
In addition to any one of the first to fifth aspects, since the fixed holder is integrally formed with the intake structure, the fixed holder integrated with the intake structure does not increase the number of parts and retains the fuel injection valve. The configuration of the device can be simplified.

Furthermore, according to the sixth aspect of the present invention,
In addition to any one of the first to fifth aspects, since the fixed holder is integrally formed with the intake structure, the fixed holder integrated with the intake structure does not increase the number of parts, and the fuel injection valve holding device The configuration can be simplified.

Furthermore, according to the seventh feature of the present invention,
In addition to any of the second to sixth aspects, since the joint cap is made of synthetic resin, the number of parts is not increased by the bayonet arm and the movable locking portion, and the structure can be simplified. Not only ,, but also the movable locking part,
The elasticity in the radial direction for engaging the fixed locking portion can be easily imparted.

[Brief description of drawings]

FIG. 1 is a perspective view of a fuel injection valve holding device according to the present invention.

FIG. 2 is a vertical cross-sectional side view of the fuel injection valve holding device.

FIG. 3 is a view on arrow 3 of FIG.

4 is a sectional view taken along line 4-4 of FIG.

5 is a view on arrow 5 of FIG.

FIG. 6 is a view on arrow 6 of FIG.

FIG. 7A is a plan view of a fixed holder of the same fuel injection valve holding device, and FIG. 7B is a sectional view taken along line BB of FIG.

FIG. 8A is a side view of a joint cap of the fuel injection valve holding device, and FIG. 8B is a sectional view taken along line BB of FIG.

FIG. 9 is an explanatory view of an assembly procedure of the fuel injection valve holding device.

[Explanation of symbols]

H ... Fuel injection valve holding device I ... Fuel injection valve Ia ... End of fuel inlet Ib ... End of fuel outlet 4 ... Intake passage structure (intake pipe) 7 ... Mounting hole 11 ... Fixed holder 12 ... Fuel conduit 13 ... Joint cap 14 ... Bayonet groove 14a ... Vertical groove 14b ... Horizontal groove 15 ... Bayonet groove 15a ... Vertical groove 15b ... Horizontal groove 20 ... Bayonet arm that doubles as a fuel inlet pipe 21 ... Bayonet arm 25 ··· Detent means 30 ··· Movable locking part (movable locking claw) 31 ··· Fixed locking part (fixed locking claw)

Claims (7)

[Claims] 1. A fuel injection valve holding device for holding a fuel injection valve (I) having a fuel outlet side end (Ib) mounted in a mounting hole (7) of an intake passage structure (4) of an engine,
The fuel injection valve is provided on the inner circumference of an annular fixed holder (11) which is connected to the intake passage structure (4) and is arranged around the fuel inlet side end (Ia) of the fuel injection valve (I). A joint cap (13) which is fitted to the outer periphery of the fuel inlet side end (Ia) of (I) and connects between the external fuel conduit (12) and the fuel injection valve (I) is fitted, and this joint cap ( A plurality of bayonet arms (20, 21) protruding outward in the radial direction are formed on the outer circumference of the joint cap (13) at a circumferential interval, while the fixed holder (1) of the joint cap (13) is formed.
1) Vertical grooves (14a, 15) with which the bayonet arms (20, 21) are sequentially engaged in accordance with the fitting into the inside and the rotation of the joint cap (13) after the fitting by a predetermined angle.
a) and a plurality of bayonet grooves (14, 15) consisting of lateral grooves (14b, 15b) are formed in the fixed holder (11),
The lateral grooves (14b, 14b, of the bayonet arm (20, 21)
15b) anti-rotation means (25) for keeping the engaged state with
The joint cap (13) and the fixed holder (11)
A fuel injection valve holding device, characterized by being provided between them. 2. The electromagnetic fuel injection valve according to claim 1, wherein the detent means (25) is a fixed holder (11).
The fixed locking portion (31) formed on the inner peripheral surface of the and the bayonet arm (20, 21) are provided with the lateral grooves (14b, 15b).
Fuel injection characterized by comprising a movable locking portion (30) formed on the joint cap (13) so as to elastically engage with the fixed locking portion (31) when engaged with Valve holding device. 3. The electromagnetic fuel injection valve according to claim 1 or 2, wherein the bayonet arm is integrally projectingly provided on an outer peripheral surface of a joint cap (13), and the fuel conduit (1
2. A fuel injection valve holding device characterized in that it is also used as a fuel introduction pipe (20) to which 2) is connected. 4. The electromagnetic fuel injection valve according to claim 1, wherein the plurality of bayonet arms (20, 2).
1) A fuel injection valve holding device characterized in that the joint cap (13) has different thicknesses (t, t ') along the axial direction. 5. The electromagnetic fuel injection valve according to claim 1, wherein the plurality of bayonet arms (20, 2).
1) A fuel injection valve holding device characterized in that the positions (h, h ') along the axial direction of the joint cap (13) are different from each other. 6. The fuel injection valve holding device according to claim 1, wherein the fixed holder (11) is integrally formed with the intake structure (4). . 7. The fuel injection valve holding device according to claim 2, wherein the joint cap (13) is made of synthetic resin.