JP2014156820A - Protection structure of fuel filter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a protection structure of a fuel filter which improves the protection property of the fuel filter disposed in an engine room using a simple structure.SOLUTION: A protection structure of a fuel filter includes: a transmission 4 disposed at the vehicle front side relative to the fuel filter; and a bracket 2 which supports a wiring material and a pipeline material 13 which are disposed in an engine room and fixes the wiring material and the pipeline material 13 at positions around the transmission 4. Further, the protection structure of the fuel filter includes a boss 5 which cylindrically protrudes from a surface of the transmission 4 and in which the bracket 2 is fixedly fastened to a tip. The protection structure of the fuel filter includes a surface contact part 3 which is disposed at the vehicle rear side of the bracket 2 fixedly fastened to the boss 5 and is formed into a plane shape facing a side surface of the fuel filter.

Description

  The present invention relates to a protective structure for a fuel filter disposed in an engine room of a vehicle.

  2. Description of the Related Art Conventionally, various structures have been proposed for preventing fuel leakage from a fuel filter at the time of a vehicle collision in a vehicle in which a fuel filter (a fuel filter, a cementer, etc.) is disposed in an engine room. That is, even if the engine room is greatly deformed by an external force, the fuel filter is not easily damaged.

  For example, a fuel filter is known in which the outer periphery of the fuel filter is surrounded by a protective member (protector) to improve the protection against external force (see Patent Document 1). Further, there is a fuel filter fixing structure in which the fuel filter is fixed in the engine compartment via the support bracket, which is attached so that the lower side of the support bracket is rotated and displaced rearward at the time of a frontal collision of the vehicle ( (See Patent Document 2). These devices make it difficult for various devices in the engine room and the fuel filter to interfere with each other, thereby improving the protection of the fuel filter.

  By the way, in the engine room of a vehicle, not only the engine but also transmissions (transmissions, transaxles, etc.), intake / exhaust systems, cooling system pipes, electric wiring of various electric devices, wires connected to various sensors Piping materials such as harnesses and wiring materials are arranged. Most of piping materials and wiring materials are fixed to a structure such as an inner wall or body of an engine room via a bracket. On the other hand, depending on the layout of the piping material and wiring material, the bracket for supporting them may not reach the position of the structure, and the wiring material and piping material bracket for the transmission arranged near the engine May be fixed. Such a bracket is generally fastened and fixed to a boss provided on a casing of the transmission.

  For example, a nut hole that engages with a bolt is drilled in the casing of the transmission, and the periphery of the nut hole is formed in a boss-like shape. Thus, by providing the boss for fastening and fixing the bracket to the casing of the transmission, the wiring material and the piping material stretched in the vicinity of the transmission can be appropriately laid out.

JP-A-9-195875 JP 2006-132362 A

However, if the transmission having a large number of bosses as described above and the fuel filter are arranged at close positions, there is a problem that the boss and the fuel filter interfere with each other at the time of a vehicle collision and the fuel filter is easily damaged. In other words, the boss has a cylindrical shape or a truncated cone shape, and its upper end portion has an approximately right-angled edge shape. The greater the weight and size of the wiring material and piping material fixed to the casing of the transmission, the larger and more robust the boss provided there, and the lower the protection of the fuel filter.
For such a problem, it is also conceivable to provide a highly rigid protector on the outer periphery of the fuel filter to prevent interference between the boss and the fuel filter. However, in this case, not only the manufacturing cost increases, but also there is a possibility that the layout in the engine room is compressed.

  One of the objects of the present invention was created in view of the above problems, and a fuel filter that can improve the protection of a fuel filter arranged in an engine room with a simple configuration. It aims at providing protection structure of. It should be noted that the present invention is not limited to this purpose, and is a function and effect derived from each configuration shown in the embodiment for carrying out the invention described later, and can also provide a function and effect that cannot be obtained by conventional techniques. Can be positioned as

(1) A fuel filter protection structure disclosed herein is a fuel filter protection structure disposed in an engine room of a vehicle, wherein the transmission is disposed in front of the fuel filter, and the engine. A bracket that supports a wiring member or a piping member disposed in the room and fixes a position around the transmission. In addition, a boss projecting from the surface of the transmission and having the bracket fastened and fixed at the tip thereof is provided. Furthermore, it is provided on the vehicle rear side of the bracket fastened and fixed to the boss, and includes a surface contact portion formed in a surface shape facing the side surface of the fuel filter.
The fuel filter includes a fuel filter for filtering the fuel to remove foreign matters contained in the fuel, a cementer for removing water in the fuel, and the like. Moreover, the said surface contact part is a site | part which contacts the side surface of the said fuel filter, for example, when the said transmission moves to the vehicle rear side with external force.

  (2) Moreover, the bracket has a fastening surface portion fastened to the boss, and a support surface portion that supports the wiring material or the piping material, and each of the surface contact portion, the fastening surface portion, and the support surface portion. It is preferable that the surfaces are arranged so as to be orthogonal to each other.

(3) Moreover, it is preferable that the said bracket has a rotation prevention part which contact | abuts on the surface of the said transmission, and prevents rotation of the said bracket. In this case, it is preferable that the detent portion is extended downward from the vehicle front side of the bracket fastened and fixed to the boss.
In addition, it is preferable that the said rotation prevention part acts so that rotation of the said bracket at the time of contact (for example, at the time of a vehicle collision) with the said fuel filter and the said surface contact part may be prevented.

(4) Moreover, it is preferable that the said surface contact part is arrange | positioned so as to oppose the lower edge part vicinity in the side cylinder surface of the said fuel filter which has a cylindrical external shape.
(5) Moreover, it is preferable that the said surface contact part is formed as a member different from the said bracket.

  According to the disclosed fuel filter protection structure, by providing a surface contact portion on the vehicle rear side of the bracket, it is possible to protect the fuel filter with a simple configuration while properly laying out the wiring material and piping material around the transmission. Can increase the sex.

It is a top view which illustrates the inside of the engine room where the protection structure of the fuel filter which concerns on one Embodiment was applied. It is a top view which expands and shows the vicinity of a fuel filter and a transmission. (A), (b) is a perspective view of a bracket. It is a perspective view which shows the bracket of the state fastened and fixed to the transmission. It is a side view in the engine room which shows the positional relationship of a transmission and a fuel filter, (a) shows the state before a vehicle collision, (b) shows the state after a vehicle collision.

  The protective structure of the fuel filter will be described with reference to the drawings. Note that the embodiment described below is merely an example, and there is no intention to exclude various modifications and technical applications that are not explicitly described in the following embodiment. Each configuration of the present embodiment can be implemented with various modifications without departing from the spirit of the present embodiment, and can be selected or combined as necessary.

[1. Constitution]
FIG. 1 is a view showing the inside of an engine room 10 of a vehicle to which a fuel filter protection structure according to an embodiment is applied. In the engine room 10, an engine 7, a transmission 4 (transmission, transaxle, etc.), a cooling device, intake / exhaust pipes, electrical wiring of various electric devices, and the like are arranged. The type and form of the engine 7 are arbitrary, and the engine 7 of this embodiment is a common rail type diesel engine.

  The engine 7 is disposed in the engine room 10 near the center in the vehicle width direction, and the transmission 4 is disposed on the right side of the engine 7 in FIG. The engine 7 and the transmission 4 are respectively fixed to a vehicle body skeleton member 8 (for example, a front side member) via a fixture 9 such as an engine mount and a transmission mount.

  A supply pump for increasing the fuel pressure (fuel pressure) in the common rail is disposed in the vicinity of the engine 7. In addition, a cylindrical fuel filter 6 (a fuel filter, a cementer, or the like) is interposed on a fuel pipe connecting the supply pump and the fuel tank. The fuel filter 6 is disposed on the rear side of the vehicle with respect to the transmission 4 in a direction in which the cylinder shaft is substantially vertical.

  As shown in FIG. 2, the fuel filter 6 of the present embodiment is provided at a position adjacent to the brake booster 15, and is a filter with respect to the bracket fixing portion 11 a of the dash panel 11 that partitions the engine room 10 and the vehicle compartment. It is fixed via the bracket 12. The transmission device 4 is arranged at a predetermined distance from the fuel filter 6 on the vehicle front side of the fuel filter 6.

  Many general-purpose bosses 5 to which various brackets, fasteners and the like are attached are formed on the surface of the casing of the transmission 4. These bosses 5 have nut holes formed in the center of a frustoconical or cylindrical projection protruding upward, and have an edge shape whose upper end portion is substantially perpendicular in a side view (longitudinal section). . The above-described fixture 9 of the transmission 4 is fastened and fixed to some of the plurality of bosses 5 with fasteners such as bolts.

  Moreover, the bracket assembly 1 is attached to the boss 5 that is located immediately before the fuel filter 6 as indicated by a broken line in FIG. FIG. 3A shows a perspective view of the bracket assembly 1 as seen from the right direction in front of the vehicle, and FIG. 3B shows a perspective view as seen from the left direction in the rear of the vehicle. The bracket assembly 1 has both a function of fixing the arrangement positions of various piping materials and wiring materials in the engine room 10 and a function of preventing interference and collision between the transmission 4 and the fuel filter 6 at the time of a vehicle collision. It is a “bracket” and is composed of two members, a mounting portion 2 and a surface contact portion 3.

  The mounting portion 2 (bracket) is a portion disposed on the vehicle front side with respect to the surface contact portion 3, and is formed in a U shape in which, for example, a steel plate is horizontally disposed and its left and right ends are bent upward. The Hereinafter, as shown in FIGS. 3A and 3B, a portion forming the bottom surface of the attachment portion 2 is referred to as a fastening surface portion 2 a, and a portion erected upward from the left and right ends of the fastening surface portion 2 a. The support surface portion 2b and the rising portion 2d are called. The support surface portion 2b is located on the right side of the fastening surface portion 2a in FIG. 3 (a), and the rising portion 2d is located on the left side of the fastening surface portion 2a in FIG. 3 (a).

  The fastening surface portion 2a is a surface that is fastened and fixed in a state of surface contact with the top surface of the boss 5, and as shown in FIG. The support surface portion 2b is a surface that supports a piping material and a wiring material 13, which will be described later, and is formed to be substantially perpendicular to the fastening surface portion 2a. A fixing hole 2f to which a band 14 for supporting the piping material and the wiring material 13 is attached is drilled in the central portion of the support surface portion 2b.

  Similar to the support surface portion 2b, the rising portion 2d is also formed substantially perpendicular to the fastening surface portion 2a. Therefore, the fastening surface portion 2a is provided so as to be orthogonal to the support surface portion 2b and the rising portion 2d. The rising portion 2d is substantially parallel to the support surface portion 2b.

  An end portion of the fastening surface portion 2a on the vehicle front side is provided with a detent portion 2c extending vertically downward. As shown in FIG. 4, the non-rotating portion 2 c is a portion that contacts and engages the surface of the transmission device 4 when the bracket assembly 1 is attached to the boss 5, and prevents the rotation of the bracket assembly 1. To work. For example, even if the transmission 4 moves to the vehicle rear side at the time of a vehicle collision and the bracket assembly 1 contacts the side surface of the fuel filter 6, the detent portion 2 c comes into contact with the surface of the transmission 4 and catches the boss 5. The rotation of the bracket assembly 1 around the center is prevented.

  The surface contact portion 3 is a portion disposed on the vehicle rear side with respect to the attachment portion 2 and is formed, for example, from the same type of steel plate as the attachment portion 2. The shape of the surface contact portion 3 is a lid shape in which a flat steel plate is arranged vertically and then its four sides are bent toward the front of the vehicle. Or it manufactures by shape | molding rubber | gum, resin, etc. in a lid shape instead of a steel plate. As shown in FIG. 3B, the surface contact portion 3 is provided with a flat surface portion 3a, an edge portion 3b, and a rounded corner portion 3c.

  The flat surface portion 3 a is a substantially flat portion formed in a surface shape facing the side surface of the fuel filter 6. When the transmission 4 moves to the vehicle rear side at the time of a vehicle collision, the flat surface portion 3a comes into contact with the side surface of the fuel filter 6 before each part of the casing of the transmission 4 so that the fuel filter 6 is moved rearward. Acts like pressing. The size and position of the flat surface portion 3 a are set so that the flat surface portion 3 a contacts the fuel filter 6 before the casing of the transmission 4 contacts the fuel filter 6. For example, the movement locus of the transmission 4 at the time of a vehicle collision is predicted in advance through experiments, tests, and the like, and the size and position of the plane portion 3a are set based on this movement locus.

  As shown in FIG. 5A, the flat surface portion 3 a of the present embodiment is disposed so as to face the vicinity of the lower edge portion on the side tube surface of the fuel filter 6 located behind the bracket assembly 1. Moreover, the plane part 3a is provided in the direction orthogonal to each of the above-mentioned fastening surface part 2a and support surface part 2b, as shown in FIG.3 (b).

  The edge part 3b is a part extended toward the vehicle front side from the outer periphery of the plane part 3a. The edge portion 3b has a shape that externally fits the fastening surface portion 2a, the support surface portion 2b, and the rising portion 2d of the attachment portion 2. In the present embodiment, the end surfaces of the fastening surface portion 2a, the support surface portion 2b, and the rising portion 2d and the edge portion 3b are fitted together, and these overlapping portions are fixed by welding. That is, the edge portion 3b functions to firmly fix the surface contact portion 3 and the mounting portion 2.

  The rounded corner portion 3c is a curved portion that smoothly connects the flat portion 3a and the edge portion 3b. As shown by a broken line in FIG. 3 (b), the rounded corner 3c surrounds the outer periphery of the flat portion 3a when the bracket assembly 1 is viewed from the rear of the vehicle. Formed over the entire circumference. The radius of curvature of the rounded corner portion 3c is set to be relatively large, for example, larger than the plate thickness of the portion 3 per surface (several times to several tens of times the plate thickness). Thereby, at the time of a vehicle collision, the contact portion 3 having no edge comes into surface contact with the fuel filter 6 and the load is dispersed.

  FIG. 4 is a perspective view showing a state in which the bracket assembly 1 is attached to the boss 5. Reference numeral 13 in the figure is, for example, a piping material or a wiring material, and reference numeral 14 is a band (binding tool) for fixing this to the bracket assembly 1. Here, the band 14 is wound around the peripheral surfaces of the piping material and the wiring material 13, and one end of the band 14 is fixed in a state of being inserted into the fixing hole 2f of the support surface portion 2b. Moreover, the piping material and the wiring material 13 are arrange | positioned so that it may become substantially parallel with respect to the support surface part 2b.

[2. Action]
The operation at the time of a vehicle collision will be described with reference to FIGS. Numerous bosses 5 are formed on the upper surface of the transmission 4 arranged in front of the fuel filter 6. As shown by hatching in FIG. 5A, the upper ends of these bosses 5 have an edge shape that is substantially perpendicular to the side view. Therefore, when the transmission 4 is moved rearward due to an impact force at the time of a vehicle collision, the edge of the boss 5 located immediately in front of the fuel filter 6 may interfere with the side surface of the fuel filter 6 and the fuel filter 6 may be damaged. There is.

  With respect to such a problem, in the protective structure of the fuel filter 6 described above, the bracket assembly 1 is attached to the boss 5 positioned immediately before the fuel filter 6. The bracket assembly 1 has both a function of fixing the arrangement positions of the piping material and the wiring material 13 arranged in the engine room 10 and a function of protecting the fuel filter 6 in the event of a vehicle collision. For example, as shown in FIG. 5A, the piping material and the wiring material 13 are attached to the attachment portion 2 of the bracket assembly 1 via the band 14, and the bracket assembly 1 is fastened and fixed to the boss 5. Therefore, the piping material and the wiring material 13 are arranged in an appropriate layout with respect to the transmission 4.

  On the other hand, a surface contact portion 3 is formed on the rear side of the bracket assembly 1 in the vehicle. As a result, as shown by a broken line in FIG. 5B, even if the transmission 4 moves rearward of the vehicle, the surface contact portion 3 comes into contact with the side surface of the fuel filter 6 before the boss 5. Interference between the edge and the fuel filter 6 is prevented. Further, the surface contact portion 3 of the bracket assembly 1 has no edge, and the contact state between the bracket assembly 1 and the fuel filter 6 is surface contact. Thereby, compared with the case where there is no bracket assembly 1, the pressure given to the side surface of the fuel filter 6 decreases, and the protection of the fuel filter 6 is improved.

  Further, as shown in FIG. 5B, the position of the piping material and the wiring material 13 when the surface contact portion 3 comes into contact with the side surface of the fuel filter 6 is determined by the support surface portion 2 b that supports the piping material and the wiring material 13. It is prescribed. Therefore, it becomes difficult for the piping material and the wiring material 13 to be sandwiched between the surface contact portion 3 and the fuel filter 6, and the protection of the piping material and the wiring material 13 is improved. Even if a rotational force acts on the bracket assembly 1 due to the contact between the surface contact portion 3 and the fuel filter 6, the detent portion 2 c comes into contact with and catches on the upper surface (surface) of the transmission 4. Become. That is, the rotation of the bracket assembly 1 is restricted, and the surface contact state between the surface contact portion 3 and the fuel filter 6 is maintained. Thereby, the deformation amount of the side surface of the fuel filter 6 is reduced, and the damage of the fuel filter 6 is suppressed.

[3. effect]
(1) As described above, in the protective structure for the fuel filter 6 of this embodiment, the surface contact portion 3 is provided on the vehicle rear side of the mounting portion 2 fastened and fixed to the boss 5 formed on the surface of the transmission 4. It is done. Thereby, even if the transmission 4 moves rearward of the vehicle at the time of a vehicle collision, the surface contact portion 3 can be brought into surface contact with the side surface of the fuel filter 6. Therefore, the protective property of the fuel filter 6 can be improved with a simple configuration while realizing an appropriate layout of the piping material and the wiring material 13 without pressing the layout in the engine room.

  As shown by an arrow A in FIG. 5 (a), when there is an uneven portion on the casing surface near the boss 5 to which the bracket assembly 1 is attached, if the uneven portion interferes with the fuel filter 6 at the time of a vehicle collision, the fuel The filter 6 may be damaged. On the other hand, according to the protective structure of the fuel filter 6 of the present embodiment, the surface contact portion 3 comes into contact with the side surface of the fuel filter 6 before such an uneven portion near the boss 5. Accordingly, interference between the uneven portion other than the boss 5 and the fuel filter 6 can also be prevented, and the protection of the fuel filter 6 can be improved.

  (2) Moreover, in said bracket assembly 1, it arrange | positions so that the three surfaces of the plane part 3a of the surface contact part 3, the fastening surface part 2a of the attachment part 2, and the support surface part 2b may mutually orthogonally cross. Thereby, the rigidity of the bracket assembly 1 as a whole can be increased, and the force input to the flat surface portion 3a by the contact between the bracket assembly 1 and the fuel filter 6 is reliably transmitted to the fastening surface portion 2a and the support surface portion 2b. Deformation of the bracket assembly 1 can be suppressed. Thereby, the surface contact state between the bracket assembly 1 and the fuel filter 6 can be easily maintained, and the protection of the fuel filter 6 can be improved.

  Moreover, in said bracket assembly 1, the site | part (fastening surface part 2a) which bears the function which fixes the position of the attachment part 2, the site | part (support surface part 2b) which bears the function which supports a piping material and the wiring material 13, and a fuel filter The part (plane part 3a) which bears the function which carries out surface contact with 6 is structurally separated. This makes it difficult for the piping material and the wiring material 13 to be sandwiched between the bracket assembly 1 and the fuel filter 6, thereby improving the protection of the piping material and the wiring material 13 and improving the protection of the fuel filter 6. Can be increased.

  (3) Moreover, the rotation prevention part 2c which functions so that rotation of the attachment part 2 (namely, rotation of the bracket assembly 1) may be provided in the edge part of the vehicle front side of said attachment part 2. As shown in FIG. Thereby, the posture at the time of contact between the bracket assembly 1 and the fuel filter 6 is hardly changed, and the surface contact state between the bracket assembly 1 and the fuel filter 6 can be easily maintained. Therefore, the protection property of the fuel filter 6 can be improved. Since the rotation preventing portion 2c is provided on the front side of the vehicle, the above-mentioned “function of making surface contact with the fuel filter 6” is not hindered.

  (4) When the bracket assembly 1 is disposed so that the flat surface portion 3a of the surface contact portion 3 faces the vicinity of the lower edge portion of the side tube surface of the fuel filter 6, the lower end of the side tube surface of the fuel filter 6 And the flat portion 3a can be brought into contact with each other, and deformation of the fuel filter 6 can be suppressed. Thereby, the protection of the fuel filter 6 can be improved.

  (5) The surface contact portion 3 is formed as a member different from the mounting portion 2 of the bracket assembly 1. Therefore, the composition and shape of the surface contact portion 3 can be easily changed according to the strength, rigidity, shape, material, and the like of the side surface of the fuel filter 6, and the protection of the fuel filter 6 can be improved. For example, if the surface contact portion 3 is molded with rubber or resin, the cushioning property at the time of contact between the bracket assembly 1 and the fuel filter 6 can be improved, and the protection property of the fuel filter 6 can be further improved.

[4. Modified example]
Regardless of the embodiment described above, various modifications can be made without departing from the spirit of the invention. Each structure of this embodiment can be selected as needed, or may be combined appropriately. For example, in the above-described embodiment, the attachment part 2 and the surface contact part 3 of the bracket assembly 1 are formed as separate members. However, the structure may be simplified by forming them integrally. Thereby, while being able to reduce the manufacturing cost of the bracket assembly 1, the procedure concerning the assembly | attachment of a member can be simplified and workability | operativity can be improved.

  In the above-described embodiment, as shown in FIG. 5B, the description has been given by taking up the case where the surface contact portion 3 is disposed so as to face the vicinity of the lower edge portion of the side tube surface of the fuel filter 6. The contact portion between the surface contact portion 3 and the fuel filter 6 is not limited to this. The surface contact portion 3 may be set at a position at least so that the boss 5 protruding from the surface of the transmission 4 does not directly contact the fuel filter 6.

  Regarding the function of the bracket assembly 1, in the above-described embodiment, the bottom surface (fastening surface portion 2 a) of the mounting portion 2 is a “surface that is fastened and fixed to the boss 5”, and one side surface (supporting surface portion 2 b) is “pipe material, wiring”. Although the “supporting surface of the material 13” is described, the specific portion that realizes these functions is not limited to that of the above-described embodiment. For example, a structure in which the piping material and the wiring material 13 are supported by the fastening surface portion 2a and the supporting surface portion 2b is fastened and fixed to the boss 5 or a structure in which the piping material and the wiring material 13 are supported by the rising portion 2d. Also good. The bracket assembly 1 has at least an arrangement relationship such that “the contact surface with the fuel filter 6”, “the surface fastened and fixed to the boss 5”, and “the support surface of the piping material and the wiring material 13” are orthogonal to each other. In addition, while ensuring the strength and rigidity of the surface contact portion 3, it is possible to avoid interference (pinching) between the fuel filter 6 and the piping material and the wiring material 13, and to improve the protection of the fuel filter 6.

  Moreover, in the above-mentioned embodiment, although what planarly formed the plane part 3a was illustrated, you may form the plane part 3a in a curved surface form, and you may form in the polyhedron shape which combined the several surface. Good. The specific shape of the flat surface portion 3 a can be appropriately set according to the shape of the side surface of the fuel filter 6. In addition, the pressure which acts on a contact surface can be made small and the protection property of the fuel filter 6 can be improved, so that the contact area of the plane part 3a and the side surface of the fuel filter 6 increases.

1 Bracket assembly 2 Mounting part (bracket)
2a Fastening surface portion 2b Support surface portion 2c Anti-rotation portion 2d Rising portion 2e Fastening hole 2f Fixed hole 3 Surface contact portion 3a Flat portion 3b Edge portion 3c Rounded corner portion 4 Transmission device 5 Boss 6 Fuel filter 13 Piping material, wiring material

Claims (5)

A protective structure for a fuel filter disposed in an engine room of a vehicle,
A transmission disposed on the vehicle front side of the fuel filter;
A bracket for supporting a wiring member or a piping member disposed in the engine room and fixing a position around the transmission,
A boss projecting from the surface of the transmission, and the bracket being fastened and fixed to the tip thereof;
A fuel filter protective structure comprising: a surface contact portion disposed on the vehicle rear side of the bracket fastened and fixed to the boss and formed in a surface shape facing the side surface of the fuel filter. . The bracket has a fastening surface portion fastened to the boss, and a support surface portion that supports the wiring member or the piping member,
2. The fuel filter protection structure according to claim 1, wherein each of the surface contact portion, the fastening surface portion, and the support surface portion is disposed so as to be orthogonal to each other. The bracket has a detent portion that contacts the surface of the transmission to prevent rotation of the bracket;
The fuel filter protection structure according to claim 1, wherein the anti-rotation portion extends downward from a vehicle front side of the bracket fastened and fixed to the boss. The said surface contact part is arrange | positioned so as to oppose the lower edge part vicinity in the side cylinder surface of the said fuel filter which has a cylindrical external shape, The any one of Claims 1-3 characterized by the above-mentioned. Fuel filter protection structure. 5. The fuel filter protection structure according to claim 1, wherein the surface contact portion is formed as a member different from the bracket. 6.

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