WO2023152945A1 - Protective structure for fuel pipe - Google Patents

Protective structure for fuel pipe Download PDF

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Publication number
WO2023152945A1
WO2023152945A1 PCT/JP2022/005578 JP2022005578W WO2023152945A1 WO 2023152945 A1 WO2023152945 A1 WO 2023152945A1 JP 2022005578 W JP2022005578 W JP 2022005578W WO 2023152945 A1 WO2023152945 A1 WO 2023152945A1
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WO
WIPO (PCT)
Prior art keywords
backbone
vehicle
fuel pipe
fuel
engine
Prior art date
Application number
PCT/JP2022/005578
Other languages
French (fr)
Japanese (ja)
Inventor
和真 藤本
Original Assignee
三菱自動車工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱自動車工業株式会社 filed Critical 三菱自動車工業株式会社
Priority to PCT/JP2022/005578 priority Critical patent/WO2023152945A1/en
Publication of WO2023152945A1 publication Critical patent/WO2023152945A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K13/00—Arrangement in connection with combustion air intake or gas exhaust of propulsion units
    • B60K13/04—Arrangement in connection with combustion air intake or gas exhaust of propulsion units concerning exhaust
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/01—Arrangement of fuel conduits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/20—Floors or bottom sub-units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Definitions

  • This case concerns the protective structure of the fuel pipe that connects the engine inside the engine room and the fuel tank outside the engine room.
  • a vehicle in which the engine is placed inside the engine room, the fuel tank is placed outside the engine room, and the two are connected by a fuel pipe.
  • the engine is arranged in the front part of the vehicle and the fuel tank is arranged in the rear part of the vehicle. Further, the fuel pipe is routed in the longitudinal direction of the vehicle below the floor panel (see Japanese Patent Application Laid-Open No. 2009-68349).
  • the various devices (engine, motor, auxiliary equipment, etc.) placed in the engine room may move to the rear of the vehicle due to external force, for example, when the vehicle has a frontal collision.
  • various devices moved to the rear side of the vehicle interfere with the fuel pipe, there is a risk of fuel leakage due to breakage or deformation of the fuel pipe. Therefore, it is preferable that the fuel pipes be routed in a layout in which interference is less likely to occur even if various devices move to the rear side of the vehicle. Such a point is not sufficiently considered in conventional vehicles, and there is room for improvement.
  • One of the purposes of this case is to provide a fuel pipe protection structure that was created in light of the above problems and that can improve the fuel pipe protection performance.
  • the disclosed fuel pipe protection structure can be implemented as an aspect or application disclosed below to solve at least part of the above problems.
  • the disclosed fuel pipe protection structure includes a backbone formed in a shape extending in the longitudinal direction of the vehicle and protruding upward from a central portion of a floor panel in the vehicle width direction, an exhaust gas purification catalyst disposed inside the backbone, and the A vehicle comprising a pair of side members extending in the longitudinal direction of the vehicle with a backbone sandwiched in the vehicle width direction, and a suspension cross extending between the pair of side members in the vehicle width direction and supporting a suspension device, comprising: an engine room; It is a protection structure for a fuel pipe that connects an internal engine and a fuel tank outside the engine room.
  • the fuel pipe extends in the longitudinal direction of the vehicle and has a front portion reaching the engine, a rear portion extending in the longitudinal direction of the vehicle outside the backbone and reaching the fuel tank, the suspension cloth, and the exhaust purification catalyst. and an intermediate portion extending in the vehicle width direction forward of the exhaust purification catalyst and rearward of the suspension cross, and connecting the rear end of the front portion and the front end of the rear portion.
  • the disclosed fuel pipe protection structure by arranging the intermediate portion of the fuel pipe in front of the exhaust purification catalyst and behind the suspension cross, deformation and damage of the fuel pipe due to interference with the retreating suspension cross can be prevented. It is possible to prevent heat damage from the exhaust purification catalyst to the fuel pipe while preventing heat damage. Therefore, the protection performance of the fuel pipe can be enhanced.
  • FIG. 4 is a perspective view for explaining a main part of the protection structure for the fuel pipe;
  • FIG. 4 is a bottom view for explaining the structure of the vehicle to which the fuel pipe protection structure is applied;
  • FIG. 4 is a cross-sectional view (side view) for explaining the protective structure of the fuel pipe;
  • FIG. 4 is a cross-sectional view (front view) for explaining the protective structure of the fuel pipe;
  • FIG. 4 is a cross-sectional view (viewed from the rear) for explaining the protective structure of the fuel pipe;
  • the disclosed fuel pipe protection structure can be implemented by the following examples.
  • FIG. 1 is a perspective view showing the main structure of the protective structure for fuel pipes 8 and 9 as an embodiment
  • FIG. 2 is a bottom view for explaining the structure of a vehicle 1 to which the protective structure is applied ( It is a view looking up from the bottom side).
  • a vehicle 1 shown in FIG. 2 is a hybrid vehicle (or plug-in hybrid vehicle) equipped with an engine 16 (internal combustion engine) and a motor 18 (electric motor) as drive sources, and a battery 19 for running.
  • a plug-in hybrid vehicle means a hybrid vehicle in which the battery 19 can be externally charged.
  • a plug-in hybrid vehicle is provided with a charging port (inlet) for inserting a charging cable to which electric power is supplied from an external charging facility.
  • the engine 16 and motor 18 are housed inside an engine room 10 arranged in the front part of the vehicle 1 . Inside the engine room 10, in addition to the engine 16 and the motor 18, various accessories, a low-voltage battery, a transaxle, and the like can be accommodated.
  • the engine room 10 is arranged on the front side of the dash panel 4 that forms the front of the foot of the passenger compartment.
  • the dash panel 4 is formed in a curved surface that rises upward from the front end of the floor panel 2 forming the front of the passenger compartment.
  • a dash cloth 5 (dash cross member) extending in the vehicle width direction is attached to the front surface of the dash panel 4 . Left and right ends of the dash cloth 5 are connected to the side members 6 . This reinforces the dash panel 4 and improves its shape stability.
  • a backbone 3 (backbone frame) extending in the vehicle width direction is provided in the center of the floor panel 2 in the vehicle width direction.
  • the backbone 3 is a portion formed by bending a plate surface so that the cross-sectional shape is upwardly convex (a portion having a shape that protrudes upward at the central portion in the vehicle width direction), and has a shape that extends in the vehicle front-rear direction. It is formed.
  • the backbone 3 shown in FIG. 1 is an example arranged adjacent to the engine room 10 and is arranged so as to extend rearward from the engine room 10 .
  • an exhaust passage 14 exhaust pipe
  • an exhaust purification catalyst 15 interposed therein are arranged inside the backbone 3.
  • a propeller shaft (not shown) may be arranged in the exhaust passage 14 inside the backbone 3 .
  • a heat shield plate 13 is interposed between the exhaust passage 14 and the exhaust purification catalyst 15 and the backbone 3 .
  • the heat shield plate 13 is shaped like a groove with a hat-shaped cross section so as to correspond to the shape of the backbone 3 .
  • FIG. 1 illustrates the heat shield plate 13 having a size that covers the lower portion of the backbone 3, it may be of a larger size.
  • the shielded area by the heat shield plate 13 may be extended to the rear of the vehicle so as to correspond to the routing shape of the exhaust passage 14 .
  • a side member 6 extending in the longitudinal direction of the vehicle is attached to the lower surface of the surface of the floor panel 2 .
  • a pair of left and right side members 6 are provided across the backbone 3 in the vehicle width direction.
  • the front end of the side member 6 extends forward of the dash panel 4 (the front end of the vehicle 1) into the engine room 10, and the rear end of the side member 6 extends rearward of the backbone 3 (the front end of the vehicle 1). rear end).
  • the side member 6 has a crank-like bent shape in front of the dash panel 4 so as to avoid the axle of the front wheel.
  • a suspension cross 7 front suspension cross member
  • the suspension cloth 7 is arranged on the front side of the dash panel 4 .
  • the suspension cross 7 is provided so as to connect the left and right side members 6 in the vehicle width direction behind the crank-shaped bent portion of the side member 6 .
  • a fuel tank 17 that stores fuel to be supplied to the engine 16 is arranged outside the engine room 10 .
  • a battery 19 that stores driving power for the motor 18 is also arranged outside the engine room 10 .
  • a recessed portion 20 for battery placement is formed by recessing the floor panel 2 behind the backbone 3 downward, and the battery 19 is placed inside it.
  • the fuel tank 17 is attached below the side member 6 behind the battery 19 (the recessed portion 20 for arranging the battery).
  • a canister (not shown) for collecting fuel vapor is arranged near the fuel tank 17 . In the present case, the canister is assumed to be included in the fuel tank 17 (tank assembly).
  • Fuel pipes 8 and 9 for supplying fuel to the engine 16 are provided between the engine 16 and the fuel tank 17 .
  • the fuel pipes 8, 9 include a main pipe 8 for supplying liquid fuel to the fuel injection device of the engine 16, and a vapor pipe 9 for supplying fuel vapor collected by the canister to the intake system of the engine 16. included. In the example shown in FIG. 2, these fuel pipes 8 and 9 are routed substantially in parallel along substantially the same route.
  • the main pipe 8 is provided with a front portion 8A, an intermediate portion 8B and a rear portion 8C
  • the vapor pipe 9 is also provided with a front portion 9A, an intermediate portion 9B and a rear portion 9C.
  • the front portions 8A, 9A are portions corresponding to the front portions of the fuel pipes 8, 9 as a whole, extending in the longitudinal direction of the vehicle and reaching the engine 16.
  • the front portions 8A and 9A are routed above the heat shield plate 13, for example, inside the backbone 3 (or at a position outside the backbone 3 and adjacent to the lower side of the backbone 3).
  • the portions protruding from the inside of the backbone 3 may also be considered to be included in the front portions 8A and 9A.
  • the rear portions 8C and 9C correspond to the rear portions of the fuel pipes 8 and 9 as a whole and extend in the longitudinal direction of the vehicle outside the backbone 3 and reach the fuel tank 17 .
  • the intermediate portions 8B, 9B are portions sandwiched between the front portions 8A, 9A and the rear portions 8C, 9C in the entirety of the fuel pipes 8, 9 and extend in the vehicle width direction. It is a portion that connects the rear end and the front ends of the rear portions 8C and 9C.
  • the positions of the intermediate portions 8B and 9B are, as shown in FIG. be.
  • the intermediate portions 8B and 9B are connected to the front portions 8A and 9A through the inside of the backbone 3 above the heat shield plate 13 .
  • the suspension cross 7 indicated by the dashed line in FIG. For example, when the engine 16 or the motor 18 receives an external force due to a frontal collision of the vehicle 1, the suspension cloth 7 may be pushed by the external force and move to the rear side of the vehicle. Therefore, if the positions of the intermediate portions 8B and 9B are set to the front side from the state shown in FIG. It becomes easy to cause fuel leakage due to damage or deformation. On the other hand, by separating the intermediate portions 8B, 9B from the suspension cross 7, interference with the suspension cross 7 is less likely to occur, and deformation and damage of the fuel pipes 8, 9 are prevented. Thereby, the protection performance of the fuel pipes 8 and 9 is improved.
  • the intermediate portions 8B and 9B will be closer to the exhaust gas purification catalyst 15, so that they are likely to be affected by exhaust heat. .
  • the intermediate portions 8B, 9B by separating the intermediate portions 8B, 9B from the exhaust purification catalyst 15, the fuel pipes 8, 9 are less likely to be affected by exhaust heat, causing heat damage (deformation of the fuel pipes 8, 9 due to heat). damage) is prevented.
  • the exhaust purification catalyst 15 is arranged below the heat shield plate 13, the intermediate portions 8B and 9B are above the heat shield plate 13 and connected to the front portions 8A and 9A. Therefore, the influence of exhaust heat on the intermediate portions 8B, 9B is prevented more reliably.
  • the intermediate portions 8B and 9B are arranged at positions equivalent to the front end (cone portion) of the exhaust purification catalyst 15 in the longitudinal direction of the vehicle.
  • the layout (wiring route) is such that the bent portion between the front portions 8A, 9A and the intermediate portions 8B, 9B is positioned exactly at the front end of the exhaust purification catalyst 15.
  • the separation distance between the suspension cross 7 and the intermediate portions 8B, 9B is maximized within a range that prevents heat damage. Therefore, the effect of preventing interference with the suspension cloth 7 is enhanced, and the performance of protecting the fuel pipes 8 and 9 is further enhanced.
  • a hollow conduit 11 is provided in which a high-voltage wire (PN wire) for power transmission is inserted.
  • the wire tube 11 is, for example, a bellows tube (flexible tube for wiring), and a high-voltage wire passes through the inside thereof.
  • the electric conduit 11 is routed along the fuel pipes 8 and 9 so as to pass through the inside of the backbone 3 (above the heat shield plate 13).
  • the front end of conduit 11 is connected to a motor 18 (eg, an inverter).
  • the rear end of the conduit 11 is connected to the battery 19 through an opening formed in the floor panel 2 .
  • FIG. 3 and 4 are cross-sectional views showing the relationship between the front portions 8A, 9A of the fuel pipes 8, 9 and the conduit 11.
  • FIG. 3 shows a state (side view) of the vehicle 1 cut along a vertical plane along the center plane in the vehicle width direction and viewed from the left side to the right side of the vehicle 1 .
  • FIG. 4 shows a state in which the vehicle 1 is cut along a vertical plane passing in front of the dash panel 4 among vertical planes perpendicular to the cutting plane in FIG. 3 and viewed from the front to the rear of the vehicle 1 (front view). .
  • the front portions 8A, 9A of the fuel pipes 8, 9 and the conduit 11 have portions that are routed along the upper surface of the backbone 3 and the dash panel 4 in a substantially L shape.
  • the front parts 8A, 9A and the conduit 11 are fixed to the dash cloth 5 via brackets 12, for example, and fixed to the upper surface of the backbone 3 (floor panel 2) via the second brackets 22.
  • the bracket 12 is arranged at the upper end of the L-shaped portion, and the second bracket 22 is arranged at the lower end of the L-shaped portion.
  • the front portions 8A and 9A and the wire tube 11 are formed in a bent shape extending forward above the bracket 12 .
  • the front portions 8A, 9A of the fuel pipes 8, 9 are arranged so as to pass through a position (vehicle rear side) closer to the dash panel 4 than the electrical conduit 11 in a side view as shown in FIG.
  • the conduit 11 acts to guard the front of the front portions 8A, 9A, and the fuel pipes 8, 9 Better protection.
  • the front portions 8A, 9A of the fuel pipes 8, 9 are arranged so as to pass through a position closer to the floor panel 2 (upper side of the vehicle) than the conduit 11 is. That is, it is preferable to set a short vertical separation distance from the upper surface of the backbone 3 to the fuel pipes 8 and 9, and to set a long vertical separation distance from the upper surface of the backbone 3 to the conduit 11. Due to such a layout, even if the heat shield plate 13 is pressed by various devices and deformed to move upward in the vehicle, the electric conduit 11 acts to guard the fuel pipes 8 and 9, and the fuel is discharged. The protection performance of the pipes 8 and 9 is further improved.
  • the parts that are routed vertically along the dash panel 4 are arranged so that the front parts 8A, 9A and the conduit 11 do not overlap when viewed from the front. It is preferable that they are routed separately in the vehicle width direction. For example, as shown in FIG. 4, it is preferable to set each wiring route so that the front portions 8A and 9A and the wire tube 11 pass through positions shifted in the vehicle width direction when viewed from the front. Due to such a layout, even if various devices in the engine room 10 move to the rear side of the vehicle, the conduit 11 and the front portions 8A, 9A are less likely to come into contact with each other, and the fuel pipes 8, 9 can be protected. is further improved.
  • the engine 16 is preferably arranged below the dash cloth 5.
  • the motor 18 is preferably arranged below the dash cloth 5 .
  • FIG. 5 is a cross-sectional view for explaining the arrangement positions of the rear portions 8C, 9C of the fuel pipes 8, 9.
  • the vehicle 1 is cut along the vertical plane passing through the battery 19 among the vertical planes perpendicular to the cutting plane in FIG. 3, and the vehicle 1 is viewed forward from the rear (back view).
  • the rear portions 8C and 9C of the fuel pipes 8 and 9 are arranged near the floor panel 2 inside the pipe groove 21 sandwiched between the side member 6 and the recessed portion 20 for arranging the battery.
  • the lower end position (vertical position of the portion closest to the road surface) of the recessed portion 20 for arranging the battery is set at substantially the same height as the lower end position of the side member 6 .
  • the pipe grooves 21 have a groove shape recessed upward from their lower end positions.
  • the fuel pipes 8, 9 of this embodiment have front portions 8A, 9A, intermediate portions 8B, 9B, and rear portions 8C, 9C.
  • the front portions 8A and 9A are portions extending in the longitudinal direction of the vehicle and reaching the engine 16 .
  • the rear portions 8 ⁇ /b>C and 9 ⁇ /b>C are portions extending in the longitudinal direction of the vehicle outside the backbone 3 and reaching the fuel tank 17 .
  • the intermediate portions 8B, 9B are separated from the suspension cloth 7 and the exhaust purification catalyst 15, respectively, and extend in the vehicle width direction forward of the exhaust purification catalyst 15 and rearward of the suspension cloth 7, and forward portions 8A, 9A. and the front ends of the rear portions 8C and 9C.
  • the intermediate portions 8B and 9B of the fuel pipes 8 and 9 are secured. This prevents the fuel pipes 8, 9 from being deformed or damaged due to interference with the retreating suspension cloth 7, while preventing heat damage from the exhaust gas purification catalyst 15 to the fuel pipes 8, 9 (heat damage to the fuel pipes 8, 9). deformation and breakage) can be prevented. Therefore, the protection performance of the fuel pipes 8 and 9 can be enhanced.
  • the intermediate portions 8B, 9B of the fuel pipes 8, 9 are arranged at the same position as the front end of the exhaust purification catalyst 15 in the longitudinal direction of the vehicle.
  • the separation distance between the suspension cloth 7 and the intermediate portions 8B, 9B can be maximized within a range in which heat damage due to the exhaust purification catalyst 15 can be prevented. Therefore, the effect of preventing interference with the suspension cloth 7 can be enhanced, and the performance of protecting the fuel pipes 8 and 9 can be further enhanced.
  • the intermediate portions 8B and 9B of the fuel pipes 8 and 9 pass through the inside of the backbone 3 above the heat shield plate 13 and pass through the front portions 8A and 9A. connected to As a result, heat damage to the fuel pipes 8 and 9 due to the exhaust purification catalyst 15 can be reliably prevented, and the protection performance of the fuel pipes 8 and 9 can be enhanced. Further, by passing the conduit 11 above the heat shield plate 13, heat damage to the conduit 11 can be reliably prevented, and the protective performance of the conduit 11 can be enhanced.
  • the front portions 8A, 9A are arranged inside the backbone 3. As a result, the front portions 8A and 9A are less likely to be caught between the dash panel 4 and the suspension cloth 7. ⁇ Therefore, the protection performance of the fuel pipes 8 and 9 can be further enhanced.
  • the front portions 8A, 9A of the fuel pipes 8, 9 and the conduit 11 can be routed along the upper surface of the backbone 3 and the dash panel 4, as shown in FIG. 3, for example. Further, the front portions 8A, 9A of the fuel pipes 8, 9 can be arranged at positions closer to the dash panel 4 than the conduit 11 is. With such a layout, the front of the front portions 8A and 9A (the left side in FIG. 3) can be guarded by the conduit 11. As shown in FIG. Therefore, even if various devices in the engine room 10 move to the rear side of the vehicle, the various devices can be prevented from interfering with the fuel pipes 8 and 9, and the protection performance of the fuel pipes 8 and 9 can be improved. can be done.
  • the front portions 8A, 9A and the wire tube 11 can be laid apart in the vehicle width direction so that they do not overlap when viewed from the front.
  • the conduit 11 and Direct contact with the front parts 8A, 9A can be prevented. Therefore, the protection performance of the fuel pipes 8 and 9 can be enhanced.
  • the front portions 8A, 9A of the fuel pipes 8, 9 and the electric conduit 11 can be fixed to the dash cloth 5 via the bracket 12, as shown in FIG. 3, for example.
  • the fixed state thereof can be stabilized.
  • the engine 16 and the motor 18 are arranged below the dash cross 5, even if these devices move rearward during a frontal collision, a direct hit to the bracket 12 can be avoided. Therefore, the protection performance of the fuel pipes 8 and 9 and the wire tube 11 can be enhanced.
  • the fuel pipes 8, 9 in which the main pipe 8 and the vapor pipe 9 are separately provided are exemplified, but they may be integrated.
  • a similar piping structure may be formed using a double pipe in which a liquid fuel flow path and a fuel vapor flow path are provided independently within one pipe.
  • the positions of the intermediate portions 8B and 9B of the fuel pipes 8 and 9 are positioned forward of the exhaust purification catalyst 15 and from the suspension cloth 7 so that the intermediate portions 8B and 9B of the fuel pipes 8 and 9 are separated from the suspension cloth 7 and the exhaust purification catalyst 15, respectively.
  • the rearward position By also setting the rearward position, the same effect as in the above-described embodiment can be obtained.
  • This case can be used in the manufacturing industry of vehicles with fuel pipes (engine vehicles and hybrid vehicles equipped with an engine).

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • General Engineering & Computer Science (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

This protective structure is for fuel pipes (8, 9) connecting an engine (16) and a fuel tank (17) in a vehicle (1) comprising a backbone (3), an exhaust gas purification catalyst (15), a side member (6), and a suspension cross (7). The fuel pipe (8, 9) has a front portion (8A, 9A), an intermediate portion (8B, 9B), and a rear portion (8C, 9C). The front portion (8A, 9A) extends in a vehicle front-rear direction and reaches the engine (16). The rear portion (8C, 9C) extends in the vehicle front-rear direction outside of the backbone (3) and reaches the fuel tank (17). The intermediate portion (8B, 9B) is separated from each of the suspension cross (7) and the exhaust gas purification catalyst (15), extends in the vehicle width direction forward of the exhaust gas purification catalyst (15) and rearward of the suspension cross (7), and connects a rear end of the front portion (8A, 9A) and a front end of the rear portion (8C, 9C).

Description

燃料配管の保護構造Protective structure for fuel piping
　本件は、エンジンルーム内のエンジンとエンジンルーム外の燃料タンクとを接続する燃料配管の保護構造に関する。 This case concerns the protective structure of the fuel pipe that connects the engine inside the engine room and the fuel tank outside the engine room.
　従来、エンジンルーム内にエンジンを配置するとともにエンジンルーム外に燃料タンクを配置し、これらの間を燃料配管で接続した車両が知られている。この種の車両では、エンジンが車両前部に配置されるとともに、燃料タンクが車両後部に配置される。また、燃料配管はフロアパネルの下方において車両前後方向に配索される（特開2009-68349号公報参照）。 Conventionally, a vehicle is known in which the engine is placed inside the engine room, the fuel tank is placed outside the engine room, and the two are connected by a fuel pipe. In this type of vehicle, the engine is arranged in the front part of the vehicle and the fuel tank is arranged in the rear part of the vehicle. Further, the fuel pipe is routed in the longitudinal direction of the vehicle below the floor panel (see Japanese Patent Application Laid-Open No. 2009-68349).
特開2009-68349号公報JP-A-2009-68349
　エンジンルーム内に配置される各種装置（エンジン，モータ，補機等）は、例えば車両の前突時に外力を受けて車両後方側へと移動することがある。一方、車両後方側へと移動した各種装置と燃料配管とが干渉してしまうと、燃料配管の破損や変形によって燃料漏れが生じるおそれがある。したがって燃料配管は、たとえ各種装置が車両後方側へと移動してきた場合であっても、干渉が生じにくいレイアウトで配索することが好ましい。従来の車両においてはこのような点が十分に考慮されておらず、改善の余地がある。 　The various devices (engine, motor, auxiliary equipment, etc.) placed in the engine room may move to the rear of the vehicle due to external force, for example, when the vehicle has a frontal collision. On the other hand, if various devices moved to the rear side of the vehicle interfere with the fuel pipe, there is a risk of fuel leakage due to breakage or deformation of the fuel pipe. Therefore, it is preferable that the fuel pipes be routed in a layout in which interference is less likely to occur even if various devices move to the rear side of the vehicle. Such a point is not sufficiently considered in conventional vehicles, and there is room for improvement.
　本件の目的の一つは、上記のような課題に照らして創案されたものであり、燃料配管の保護性能を高めることができるようにした燃料配管の保護構造を提供することである。なお、この目的に限らず、後述する「発明を実施するための形態」に示す各構成から導き出される作用効果であって、従来の技術では得られない作用効果を奏することも、本件の他の目的として位置付けられる。 One of the purposes of this case is to provide a fuel pipe protection structure that was created in light of the above problems and that can improve the fuel pipe protection performance. In addition to this purpose, it is also possible to achieve actions and effects derived from each configuration shown in the "Mode for Carrying out the Invention" described later and which cannot be obtained with conventional techniques. positioned as a goal.
　開示の燃料配管の保護構造は、以下に開示する態様または適用例として実現でき、上記の課題の少なくとも一部を解決する。
　開示の燃料配管の保護構造は、フロアパネルの車幅方向中央部において上方に突出して車両前後方向に延びた形状に形成されるバックボーンと、前記バックボーンの内側に配置される排気浄化触媒と、前記バックボーンを車幅方向に挟んで車両前後方向に延びる一対のサイドメンバと、前記一対のサイドメンバの間を車幅方向に架け渡されてサスペンション装置を支持するサスクロスとを備えた車両において、エンジンルーム内のエンジンと前記エンジンルーム外の燃料タンクとを接続する燃料配管の保護構造である。
　前記燃料配管は、車両前後方向に延在し、前記エンジンに至る前方部と、前記バックボーンの外側で車両前後方向に延在し、前記燃料タンクに至る後方部と、前記サスクロス及び前記排気浄化触媒の各々に対して離隔して、前記排気浄化触媒よりも前方かつ前記サスクロスよりも後方で車幅方向に延在し、前記前方部の後端と前記後方部の前端とを接続する中間部と、を有する。 The disclosed fuel pipe protection structure can be implemented as an aspect or application disclosed below to solve at least part of the above problems.
The disclosed fuel pipe protection structure includes a backbone formed in a shape extending in the longitudinal direction of the vehicle and protruding upward from a central portion of a floor panel in the vehicle width direction, an exhaust gas purification catalyst disposed inside the backbone, and the A vehicle comprising a pair of side members extending in the longitudinal direction of the vehicle with a backbone sandwiched in the vehicle width direction, and a suspension cross extending between the pair of side members in the vehicle width direction and supporting a suspension device, comprising: an engine room; It is a protection structure for a fuel pipe that connects an internal engine and a fuel tank outside the engine room.
The fuel pipe extends in the longitudinal direction of the vehicle and has a front portion reaching the engine, a rear portion extending in the longitudinal direction of the vehicle outside the backbone and reaching the fuel tank, the suspension cloth, and the exhaust purification catalyst. and an intermediate portion extending in the vehicle width direction forward of the exhaust purification catalyst and rearward of the suspension cross, and connecting the rear end of the front portion and the front end of the rear portion. , have
　開示の燃料配管の保護構造によれば、排気浄化触媒よりも前方かつサスクロスよりも後方に燃料配管の中間部を配設することで、後退してきたサスクロスとの干渉による燃料配管の変形や破損を防止しつつ、排気浄化触媒から燃料配管への熱害を防止できる。したがって、燃料配管の保護性能を高めることができる。 According to the disclosed fuel pipe protection structure, by arranging the intermediate portion of the fuel pipe in front of the exhaust purification catalyst and behind the suspension cross, deformation and damage of the fuel pipe due to interference with the retreating suspension cross can be prevented. It is possible to prevent heat damage from the exhaust purification catalyst to the fuel pipe while preventing heat damage. Therefore, the protection performance of the fuel pipe can be enhanced.
燃料配管の保護構造の要部を説明するための斜視図である。FIG. 4 is a perspective view for explaining a main part of the protection structure for the fuel pipe; 燃料配管の保護構造が適用された車両の構造を説明するための下面図である。FIG. 4 is a bottom view for explaining the structure of the vehicle to which the fuel pipe protection structure is applied; 燃料配管の保護構造を説明するための断面図（側面視）である。FIG. 4 is a cross-sectional view (side view) for explaining the protective structure of the fuel pipe; 燃料配管の保護構造を説明するための断面図（正面視）である。FIG. 4 is a cross-sectional view (front view) for explaining the protective structure of the fuel pipe; 燃料配管の保護構造を説明するための断面図（背面視）である。FIG. 4 is a cross-sectional view (viewed from the rear) for explaining the protective structure of the fuel pipe;
　開示の燃料配管の保護構造は、以下の実施例によって実施されうる。 The disclosed fuel pipe protection structure can be implemented by the following examples.
［１．構成］
　図１は、実施例としての燃料配管８，９の保護構造に関する要部構造を示す斜視図であり、図２は、その保護構造が適用された車両１の構造を説明するための下面図（下面側から見上げた図）である。図２に示す車両１は、駆動源としてのエンジン１６（内燃機関）及びモータ１８（電動機）と走行用のバッテリ１９とを搭載するハイブリッド車両（またはプラグインハイブリッド車両）である。プラグインハイブリッド車両とは、バッテリ１９に対する外部充電が可能なハイブリッド車両を意味する。プラグインハイブリッド車両には、外部充電設備からの電力が送給される充電ケーブルを差し込むための充電口（インレット）が設けられる。 [1. composition]
FIG. 1 is a perspective view showing the main structure of the protective structure for fuel pipes 8 and 9 as an embodiment, and FIG. 2 is a bottom view for explaining the structure of a vehicle 1 to which the protective structure is applied ( It is a view looking up from the bottom side). A vehicle 1 shown in FIG. 2 is a hybrid vehicle (or plug-in hybrid vehicle) equipped with an engine 16 (internal combustion engine) and a motor 18 (electric motor) as drive sources, and a battery 19 for running. A plug-in hybrid vehicle means a hybrid vehicle in which the battery 19 can be externally charged. A plug-in hybrid vehicle is provided with a charging port (inlet) for inserting a charging cable to which electric power is supplied from an external charging facility.
　エンジン１６及びモータ１８は、車両１の前部に配置されるエンジンルーム１０の内部に収容される。このエンジンルーム１０の内部には、エンジン１６及びモータ１８のほか、各種補機類や低圧バッテリ，トランスアクスル等が収容されうる。図１に示すように、エンジンルーム１０は、車室足元の前面をなすダッシュパネル４よりも前方側に配置される。ダッシュパネル４は、車室の正面をなすフロアパネル２の前端から上方に向かって迫り上がった曲面状に形成される。また、ダッシュパネル４の表面のうち前方側の面には、車幅方向に延在するダッシュクロス５（ダッシュクロスメンバ）が取り付けられる。ダッシュクロス５の左右両端部は、サイドメンバ６に接続される。これによりダッシュパネル４が補強され、形状安定性が向上する。 The engine 16 and motor 18 are housed inside an engine room 10 arranged in the front part of the vehicle 1 . Inside the engine room 10, in addition to the engine 16 and the motor 18, various accessories, a low-voltage battery, a transaxle, and the like can be accommodated. As shown in FIG. 1, the engine room 10 is arranged on the front side of the dash panel 4 that forms the front of the foot of the passenger compartment. The dash panel 4 is formed in a curved surface that rises upward from the front end of the floor panel 2 forming the front of the passenger compartment. A dash cloth 5 (dash cross member) extending in the vehicle width direction is attached to the front surface of the dash panel 4 . Left and right ends of the dash cloth 5 are connected to the side members 6 . This reinforces the dash panel 4 and improves its shape stability.
　フロアパネル２における車幅方向の中央部には、車幅方向に延在するバックボーン３（バックボーンフレーム）が設けられる。バックボーン３は、断面形状が上に凸になるように板面を屈曲させて形成された部位（車幅方向中央部において上方に突出した形状の部位）であり、車両前後方向に延びた形状に形成される。図１に示すバックボーン３は、エンジンルーム１０に隣接して配置された例であって、エンジンルーム１０から後方に向かって延びるように配置されている。バックボーン３の内側には、エンジン１６の排気通路１４（排気管）やこれに介装される排気浄化触媒１５が配置される。なお、車両１がＦＲ車や４ＷＤ車である場合には、図示しないプロペラシャフトを排気通路１４に並べてバックボーン３の内側に配置してもよい。 A backbone 3 (backbone frame) extending in the vehicle width direction is provided in the center of the floor panel 2 in the vehicle width direction. The backbone 3 is a portion formed by bending a plate surface so that the cross-sectional shape is upwardly convex (a portion having a shape that protrudes upward at the central portion in the vehicle width direction), and has a shape that extends in the vehicle front-rear direction. It is formed. The backbone 3 shown in FIG. 1 is an example arranged adjacent to the engine room 10 and is arranged so as to extend rearward from the engine room 10 . Inside the backbone 3, an exhaust passage 14 (exhaust pipe) of the engine 16 and an exhaust purification catalyst 15 interposed therein are arranged. If the vehicle 1 is an FR vehicle or a 4WD vehicle, a propeller shaft (not shown) may be arranged in the exhaust passage 14 inside the backbone 3 .
　排気通路１４及び排気浄化触媒１５とバックボーン３との間には、遮熱板１３が介装される。遮熱板１３の形状は、バックボーン３の形状に対応するようにハット型断面の溝状に形成される。図１では、バックボーン３の下方を覆う程度の大きさの遮熱板１３を例示しているが、より大きなサイズにしてもよい。例えば、遮熱板１３による遮蔽領域を排気通路１４の配索形状に対応するように車両後方まで拡張してもよい。 A heat shield plate 13 is interposed between the exhaust passage 14 and the exhaust purification catalyst 15 and the backbone 3 . The heat shield plate 13 is shaped like a groove with a hat-shaped cross section so as to correspond to the shape of the backbone 3 . Although FIG. 1 illustrates the heat shield plate 13 having a size that covers the lower portion of the backbone 3, it may be of a larger size. For example, the shielded area by the heat shield plate 13 may be extended to the rear of the vehicle so as to correspond to the routing shape of the exhaust passage 14 .
　フロアパネル２の表面のうち下方側の面には、車両前後方向に延在するサイドメンバ６が取り付けられる。サイドメンバ６は、バックボーン３を車幅方向に挟んで左右一対設けられる。サイドメンバ６の前端は、ダッシュパネル４よりも前方（車両１の前端部）に向かってエンジンルーム１０の内部に延びており、サイドメンバ６の後端は、バックボーン３よりも後方（車両１の後端部）に向かって延びている。図１に示す例では、サイドメンバ６が、ダッシュパネル４よりも前方において、前輪の車軸を避けるようにクランク状に屈曲した形状となっている。 A side member 6 extending in the longitudinal direction of the vehicle is attached to the lower surface of the surface of the floor panel 2 . A pair of left and right side members 6 are provided across the backbone 3 in the vehicle width direction. The front end of the side member 6 extends forward of the dash panel 4 (the front end of the vehicle 1) into the engine room 10, and the rear end of the side member 6 extends rearward of the backbone 3 (the front end of the vehicle 1). rear end). In the example shown in FIG. 1, the side member 6 has a crank-like bent shape in front of the dash panel 4 so as to avoid the axle of the front wheel.
　左右一対のサイドメンバ６の間には、前輪のサスペンション装置を支持するクロスメンバであるサスクロス７（フロントサスクロスメンバ）が架け渡される。このサスクロス７は、ダッシュパネル４よりも前方側に配置される。図１に示す例では、サスクロス７が、サイドメンバ６のクランク状に屈曲した部分よりも後方において、左右のサイドメンバ６を車幅方向に接続するように設けられている。 Between the pair of left and right side members 6, a suspension cross 7 (front suspension cross member), which is a cross member that supports the suspension device of the front wheels, is bridged. The suspension cloth 7 is arranged on the front side of the dash panel 4 . In the example shown in FIG. 1, the suspension cross 7 is provided so as to connect the left and right side members 6 in the vehicle width direction behind the crank-shaped bent portion of the side member 6 .
　エンジン１６に供給される燃料を貯留する燃料タンク１７は、エンジンルーム１０外に配置される。同様に、モータ１８の駆動電力を貯留するバッテリ１９も、エンジンルーム１０外に配置される。図１に示す例では、バックボーン３よりも後方のフロアパネル２を下方に凹ませてなるバッテリ配置用掘り込み部２０が形成され、その内側にバッテリ１９が配置されている。また、燃料タンク１７は、図２に示すように、バッテリ１９（バッテリ配置用掘り込み部２０）よりも後方においてサイドメンバ６の下方に取り付けられている。燃料タンク１７の近傍には、燃料蒸気を回収するための図示しないキャニスターが配置される。本件では、キャニスターが燃料タンク１７（タンクアセンブリ）に含まれるものとする。 A fuel tank 17 that stores fuel to be supplied to the engine 16 is arranged outside the engine room 10 . Similarly, a battery 19 that stores driving power for the motor 18 is also arranged outside the engine room 10 . In the example shown in FIG. 1, a recessed portion 20 for battery placement is formed by recessing the floor panel 2 behind the backbone 3 downward, and the battery 19 is placed inside it. As shown in FIG. 2, the fuel tank 17 is attached below the side member 6 behind the battery 19 (the recessed portion 20 for arranging the battery). A canister (not shown) for collecting fuel vapor is arranged near the fuel tank 17 . In the present case, the canister is assumed to be included in the fuel tank 17 (tank assembly).
　エンジン１６と燃料タンク１７との間には、燃料をエンジン１６に供給するための燃料配管８，９が設けられる。燃料配管８，９には、エンジン１６の燃料噴射装置に液体燃料を供給するためのメイン配管８と、キャニスターで回収された燃料蒸気をエンジン１６の吸気系に供給するためのベーパ配管９とが含まれる。図２に示す例では、これらの燃料配管８，９がほぼ同一の経路でほぼ平行に配索されている。 Fuel pipes 8 and 9 for supplying fuel to the engine 16 are provided between the engine 16 and the fuel tank 17 . The fuel pipes 8, 9 include a main pipe 8 for supplying liquid fuel to the fuel injection device of the engine 16, and a vapor pipe 9 for supplying fuel vapor collected by the canister to the intake system of the engine 16. included. In the example shown in FIG. 2, these fuel pipes 8 and 9 are routed substantially in parallel along substantially the same route.
　図１に示すように、メイン配管８には前方部８Ａと中間部８Ｂと後方部８Ｃとが設けられ、ベーパ配管９にも前方部９Ａと中間部９Ｂと後方部９Ｃとが設けられる。前方部８Ａ，９Ａは、燃料配管８，９の全体において前部に相当する部位であって、車両前後方向に延在し、エンジン１６に至る部位である。前方部８Ａ，９Ａは、例えばバックボーン３の内側（あるいはバックボーン３の外側であってバックボーン３の下方に隣接する位置）において、遮熱板１３よりも上側に配索される。バックボーン３の内側からはみ出した部分も、前方部８Ａ，９Ａに含まれるものと捉えてもよい。また、後方部８Ｃ，９Ｃは、燃料配管８，９の全体において後部に相当する部位であって、バックボーン３の外側で車両前後方向に延在し、燃料タンク１７に至る部位である。 As shown in FIG. 1, the main pipe 8 is provided with a front portion 8A, an intermediate portion 8B and a rear portion 8C, and the vapor pipe 9 is also provided with a front portion 9A, an intermediate portion 9B and a rear portion 9C. The front portions 8A, 9A are portions corresponding to the front portions of the fuel pipes 8, 9 as a whole, extending in the longitudinal direction of the vehicle and reaching the engine 16. As shown in FIG. The front portions 8A and 9A are routed above the heat shield plate 13, for example, inside the backbone 3 (or at a position outside the backbone 3 and adjacent to the lower side of the backbone 3). The portions protruding from the inside of the backbone 3 may also be considered to be included in the front portions 8A and 9A. The rear portions 8C and 9C correspond to the rear portions of the fuel pipes 8 and 9 as a whole and extend in the longitudinal direction of the vehicle outside the backbone 3 and reach the fuel tank 17 .
　中間部８Ｂ，９Ｂは、燃料配管８，９の全体において前方部８Ａ，９Ａと後方部８Ｃ，９Ｃとに挟まれた部位であって、車幅方向に延在し、前方部８Ａ，９Ａの後端と後方部８Ｃ，９Ｃの前端とを接続する部位である。中間部８Ｂ，９Ｂの位置は、図１に示すように、サスクロス７及び排気浄化触媒１５の各々に対して離隔して設定され、排気浄化触媒１５よりも前方かつサスクロス７よりも後方に設定される。中間部８Ｂ，９Ｂは、バックボーン３の内側において、遮熱板１３よりも上方を通って前方部８Ａ，９Ａに接続される。 The intermediate portions 8B, 9B are portions sandwiched between the front portions 8A, 9A and the rear portions 8C, 9C in the entirety of the fuel pipes 8, 9 and extend in the vehicle width direction. It is a portion that connects the rear end and the front ends of the rear portions 8C and 9C. The positions of the intermediate portions 8B and 9B are, as shown in FIG. be. The intermediate portions 8B and 9B are connected to the front portions 8A and 9A through the inside of the backbone 3 above the heat shield plate 13 .
　図１中に破線で示すサスクロス７は、燃料配管８，９に対するサスクロス７の相対位置を把握しやすくするために記載されたものである。サスクロス７は、例えば車両１の前突によってエンジン１６やモータ１８が外力を受けたときに、それらに押されて車両後方側へと移動するおそれがある。したがって、仮に中間部８Ｂ，９Ｂの位置を図１に示す状態よりも前方側に設定すれば、中間部８Ｂ，９Ｂがサスクロス７に近づくことから、サスクロス７とフロアパネル２との間に挟まれやすくなり、破損や変形によって燃料漏れが生じやすくなってしまう。これに対し、中間部８Ｂ，９Ｂをサスクロス７から離隔させることにより、サスクロス７との干渉が生じにくくなり、燃料配管８，９の変形や破損が防止される。これにより、燃料配管８，９の保護性能が向上する。 　The suspension cross 7 indicated by the dashed line in FIG. For example, when the engine 16 or the motor 18 receives an external force due to a frontal collision of the vehicle 1, the suspension cloth 7 may be pushed by the external force and move to the rear side of the vehicle. Therefore, if the positions of the intermediate portions 8B and 9B are set to the front side from the state shown in FIG. It becomes easy to cause fuel leakage due to damage or deformation. On the other hand, by separating the intermediate portions 8B, 9B from the suspension cross 7, interference with the suspension cross 7 is less likely to occur, and deformation and damage of the fuel pipes 8, 9 are prevented. Thereby, the protection performance of the fuel pipes 8 and 9 is improved.
　また、仮に中間部８Ｂ，９Ｂの位置を図１に示す状態よりも後方側に設定すれば、中間部８Ｂ，９Ｂが排気浄化触媒１５に近づくことから、排気熱の影響を受けやすくなってしまう。これに対し、中間部８Ｂ，９Ｂを排気浄化触媒１５から離隔させることにより、燃料配管８，９が排気熱の影響を受けにくくなり、熱害の発生（熱による燃料配管８，９の変形や破損）が防止される。加えて、排気浄化触媒１５が遮熱板１３よりも下方に配置されるのに対し、中間部８Ｂ，９Ｂは遮熱板１３よりも上方で前方部８Ａ，９Ａに接続される。したがって、中間部８Ｂ，９Ｂに対する排気熱の影響がより確実に阻止される。 Also, if the positions of the intermediate portions 8B and 9B are set on the rear side of the state shown in FIG. 1, the intermediate portions 8B and 9B will be closer to the exhaust gas purification catalyst 15, so that they are likely to be affected by exhaust heat. . On the other hand, by separating the intermediate portions 8B, 9B from the exhaust purification catalyst 15, the fuel pipes 8, 9 are less likely to be affected by exhaust heat, causing heat damage (deformation of the fuel pipes 8, 9 due to heat). damage) is prevented. In addition, while the exhaust purification catalyst 15 is arranged below the heat shield plate 13, the intermediate portions 8B and 9B are above the heat shield plate 13 and connected to the front portions 8A and 9A. Therefore, the influence of exhaust heat on the intermediate portions 8B, 9B is prevented more reliably.
　本実施例では、図２に示すように、中間部８Ｂ，９Ｂが車両前後方向で排気浄化触媒１５の前端（コーン部）と同等の位置に配置される。言い換えれば、前方部８Ａ，９Ａと中間部８Ｂ，９Ｂとの間の屈曲箇所が、ちょうど排気浄化触媒１５の前端に位置するようなレイアウト（配索経路）となっている。このようなレイアウトにより、熱害が防止される範囲でサスクロス７と中間部８Ｂ，９Ｂとの離隔距離が最大化される。したがって、サスクロス７との干渉防止効果が高まり、燃料配管８，９の保護性能がさらに向上する。 In this embodiment, as shown in FIG. 2, the intermediate portions 8B and 9B are arranged at positions equivalent to the front end (cone portion) of the exhaust purification catalyst 15 in the longitudinal direction of the vehicle. In other words, the layout (wiring route) is such that the bent portion between the front portions 8A, 9A and the intermediate portions 8B, 9B is positioned exactly at the front end of the exhaust purification catalyst 15. With such a layout, the separation distance between the suspension cross 7 and the intermediate portions 8B, 9B is maximized within a range that prevents heat damage. Therefore, the effect of preventing interference with the suspension cloth 7 is enhanced, and the performance of protecting the fuel pipes 8 and 9 is further enhanced.
　モータ１８とバッテリ１９との間には、電力を伝達するための高電圧線（ＰＮ線）が内挿された中空の電線管１１が設けられる。電線管１１は、例えばジャバラ配管（配線用フレキ管）であり、その内側を高電圧線が通っている。電線管１１は、燃料配管８，９に沿って、バックボーン３の内側（遮熱板１３よりも上方）を通るように配索される。電線管１１の前端は、モータ１８（例えばインバータ）に接続される。また、電線管１１の後端は、フロアパネル２に穿孔された開口部を通ってバッテリ１９に接続される。 Between the motor 18 and the battery 19, a hollow conduit 11 is provided in which a high-voltage wire (PN wire) for power transmission is inserted. The wire tube 11 is, for example, a bellows tube (flexible tube for wiring), and a high-voltage wire passes through the inside thereof. The electric conduit 11 is routed along the fuel pipes 8 and 9 so as to pass through the inside of the backbone 3 (above the heat shield plate 13). The front end of conduit 11 is connected to a motor 18 (eg, an inverter). Also, the rear end of the conduit 11 is connected to the battery 19 through an opening formed in the floor panel 2 .
　図３及び図４は、燃料配管８，９の前方部８Ａ，９Ａと電線管１１との関係を示す断面図である。図３は、車幅方向の中心面に沿った鉛直面で車両１を切断し、車両１の左側から右側へと眺めた状態（側面視）を示す。図４は、図３の切断面に垂直な鉛直面のうちダッシュパネル４よりも前方を通る鉛直面で車両１を切断し、車両１の前方から後方へと眺めた状態（正面視）を示す。 3 and 4 are cross-sectional views showing the relationship between the front portions 8A, 9A of the fuel pipes 8, 9 and the conduit 11. FIG. FIG. 3 shows a state (side view) of the vehicle 1 cut along a vertical plane along the center plane in the vehicle width direction and viewed from the left side to the right side of the vehicle 1 . FIG. 4 shows a state in which the vehicle 1 is cut along a vertical plane passing in front of the dash panel 4 among vertical planes perpendicular to the cutting plane in FIG. 3 and viewed from the front to the rear of the vehicle 1 (front view). .
　図３に示すように、燃料配管８，９の前方部８Ａ，９Ａ及び電線管１１は、バックボーン３の上面及びダッシュパネル４に沿ってほぼＬ字状に配索される部分を有する。前方部８Ａ，９Ａ及び電線管１１は、例えばブラケット１２を介してダッシュクロス５に固定されるとともに、第二ブラケット２２を介してバックボーン３の上面（フロアパネル２）に固定される。ブラケット１２はＬ字状の部分のうち上方端部に配置され、第二ブラケット２２はＬ字状の部分のうち下方端部に配置される。また、前方部８Ａ，９Ａ及び電線管１１は、ブラケット１２よりも上方において、前方に向かって延出するように屈曲した形状に形成される。 As shown in FIG. 3, the front portions 8A, 9A of the fuel pipes 8, 9 and the conduit 11 have portions that are routed along the upper surface of the backbone 3 and the dash panel 4 in a substantially L shape. The front parts 8A, 9A and the conduit 11 are fixed to the dash cloth 5 via brackets 12, for example, and fixed to the upper surface of the backbone 3 (floor panel 2) via the second brackets 22. As shown in FIG. The bracket 12 is arranged at the upper end of the L-shaped portion, and the second bracket 22 is arranged at the lower end of the L-shaped portion. Further, the front portions 8A and 9A and the wire tube 11 are formed in a bent shape extending forward above the bracket 12 .
　好ましくは、燃料配管８，９の前方部８Ａ，９Ａが、図３に示すような側面視において、電線管１１よりもダッシュパネル４に近い位置（車両後方側）を通るように配置される。つまり、燃料配管８，９が電線管１１よりもボデー側に位置するような配索レイアウトを設定することが好ましい。このようなレイアウトにより、仮にエンジンルーム１０内の各種装置が車両後方側へと移動してきたとしても、電線管１１が前方部８Ａ，９Ａの前方をガードするように働き、燃料配管８，９の保護性能が向上する。 Preferably, the front portions 8A, 9A of the fuel pipes 8, 9 are arranged so as to pass through a position (vehicle rear side) closer to the dash panel 4 than the electrical conduit 11 in a side view as shown in FIG. In other words, it is preferable to set the wiring layout so that the fuel pipes 8 and 9 are located closer to the body than the conduit 11 . With such a layout, even if various devices in the engine room 10 move to the rear side of the vehicle, the conduit 11 acts to guard the front of the front portions 8A, 9A, and the fuel pipes 8, 9 Better protection.
　より好ましくは、燃料配管８，９の前方部８Ａ，９Ａが、電線管１１よりもフロアパネル２に近い位置（車両上方側）を通るように配置される。つまり、バックボーン３の上面から燃料配管８，９までの上下方向の離隔距離を短く設定するとともに、バックボーン３の上面から電線管１１までの上下方向の離隔距離を長く設定することが好ましい。このようなレイアウトにより、仮に遮熱板１３が各種装置に押圧されて変形することで車両上方側へと移動してきたとしても、電線管１１が燃料配管８，９をガードするように働き、燃料配管８，９の保護性能がさらに向上する。 More preferably, the front portions 8A, 9A of the fuel pipes 8, 9 are arranged so as to pass through a position closer to the floor panel 2 (upper side of the vehicle) than the conduit 11 is. That is, it is preferable to set a short vertical separation distance from the upper surface of the backbone 3 to the fuel pipes 8 and 9, and to set a long vertical separation distance from the upper surface of the backbone 3 to the conduit 11. Due to such a layout, even if the heat shield plate 13 is pressed by various devices and deformed to move upward in the vehicle, the electric conduit 11 acts to guard the fuel pipes 8 and 9, and the fuel is discharged. The protection performance of the pipes 8 and 9 is further improved.
　燃料配管８，９の前方部８Ａ，９Ａ及び電線管１１のうち、ダッシュパネル４に沿って上下方向に配索される部分は、正面視で前方部８Ａ，９Ａ及び電線管１１が重ならないように車幅方向に離隔して配索されることが好ましい。例えば、図４に示すように、正面視で前方部８Ａ，９Ａと電線管１１とが車幅方向にずれた位置を通るように、各々の配索経路を設定することが好ましい。このようなレイアウトにより、仮にエンジンルーム１０内の各種装置が車両後方側へと移動してきたとしても、電線管１１と前方部８Ａ，９Ａとが接触しにくくなり、燃料配管８，９の保護性能がさらに向上する。 Of the front parts 8A, 9A of the fuel pipes 8, 9 and the conduit 11, the parts that are routed vertically along the dash panel 4 are arranged so that the front parts 8A, 9A and the conduit 11 do not overlap when viewed from the front. It is preferable that they are routed separately in the vehicle width direction. For example, as shown in FIG. 4, it is preferable to set each wiring route so that the front portions 8A and 9A and the wire tube 11 pass through positions shifted in the vehicle width direction when viewed from the front. Due to such a layout, even if various devices in the engine room 10 move to the rear side of the vehicle, the conduit 11 and the front portions 8A, 9A are less likely to come into contact with each other, and the fuel pipes 8, 9 can be protected. is further improved.
　図３に示すように、エンジン１６はダッシュクロス５よりも下方に配置されることが好ましい。モータ１８についても同様であり、ダッシュクロス５よりも下方に配置されることが好ましい。このようなレイアウトにより、エンジン１６及びモータ１８が外力を受けて車両後方側へと移動してきたとしても、エンジン１６及びモータ１８とブラケット１２との接触が回避されやすくなる。これにより、燃料配管８，９や電線管１１の保護性能がさらに向上する。 As shown in FIG. 3, the engine 16 is preferably arranged below the dash cloth 5. The same applies to the motor 18 , and it is preferably arranged below the dash cloth 5 . With such a layout, even if the engine 16 and the motor 18 receive an external force and move toward the vehicle rear side, contact between the engine 16 and the motor 18 and the bracket 12 can be easily avoided. As a result, the protection performance of the fuel pipes 8 and 9 and the wire tube 11 is further improved.
　図５は、燃料配管８，９の後方部８Ｃ，９Ｃの配設位置を説明するための断面図である。ここでは、図３の切断面に垂直な鉛直面のうちバッテリ１９を通る鉛直面で車両１を切断し、車両１の後方から前方へと眺めた状態（背面視）を示す。燃料配管８，９の後方部８Ｃ，９Ｃは、サイドメンバ６とバッテリ配置用掘り込み部２０とに挟まれた配管溝２１の内部において、フロアパネル２の近傍に配設される。 FIG. 5 is a cross-sectional view for explaining the arrangement positions of the rear portions 8C, 9C of the fuel pipes 8, 9. As shown in FIG. Here, the vehicle 1 is cut along the vertical plane passing through the battery 19 among the vertical planes perpendicular to the cutting plane in FIG. 3, and the vehicle 1 is viewed forward from the rear (back view). The rear portions 8C and 9C of the fuel pipes 8 and 9 are arranged near the floor panel 2 inside the pipe groove 21 sandwiched between the side member 6 and the recessed portion 20 for arranging the battery.
　バッテリ配置用掘り込み部２０の下端位置（最も路面に近い部分の上下方向位置）は、サイドメンバ６の下端位置とほぼ同じ高さに設定される。配管溝２１は、それらの下端位置よりも上方に凹んだ溝状となる。このような配管溝２１の内部に後方部８Ｃ，９Ｃを配置することで、例えば悪路走行時のチッピングに対する燃料配管８，９の保護性能が向上する。また、配管溝２１の上端部であるフロアパネル２の近傍に後方部８Ｃ，９Ｃを配置することで、保護性能がさらに改善される。 The lower end position (vertical position of the portion closest to the road surface) of the recessed portion 20 for arranging the battery is set at substantially the same height as the lower end position of the side member 6 . The pipe grooves 21 have a groove shape recessed upward from their lower end positions. By arranging the rear portions 8C and 9C inside such a pipe groove 21, the protection performance of the fuel pipes 8 and 9 against chipping during running on rough roads, for example, is improved. Further, by arranging the rear portions 8C and 9C near the floor panel 2, which is the upper end portion of the pipe groove 21, the protection performance is further improved.
［２．作用，効果］
　（１）本実施例の燃料配管８，９は、前方部８Ａ，９Ａと中間部８Ｂ，９Ｂと後方部８Ｃ，９Ｃとを有する。前方部８Ａ，９Ａは、車両前後方向に延在し、エンジン１６に至る部位である。後方部８Ｃ，９Ｃは、バックボーン３の外側で車両前後方向に延在し、燃料タンク１７に至る部位である。中間部８Ｂ，９Ｂは、サスクロス７及び排気浄化触媒１５の各々に対して離隔して、排気浄化触媒１５よりも前方かつサスクロス７よりも後方で車幅方向に延在し、前方部８Ａ，９Ａの後端と後方部８Ｃ，９Ｃの前端とを接続する部位である。 [2. action, effect]
(1) The fuel pipes 8, 9 of this embodiment have front portions 8A, 9A, intermediate portions 8B, 9B, and rear portions 8C, 9C. The front portions 8A and 9A are portions extending in the longitudinal direction of the vehicle and reaching the engine 16 . The rear portions 8</b>C and 9</b>C are portions extending in the longitudinal direction of the vehicle outside the backbone 3 and reaching the fuel tank 17 . The intermediate portions 8B, 9B are separated from the suspension cloth 7 and the exhaust purification catalyst 15, respectively, and extend in the vehicle width direction forward of the exhaust purification catalyst 15 and rearward of the suspension cloth 7, and forward portions 8A, 9A. and the front ends of the rear portions 8C and 9C.
　このように、排気浄化触媒１５よりも前方かつサスクロス７よりも後方に燃料配管８，９の中間部８Ｂ，９Ｂを配設することで、サスクロス７及び排気浄化触媒１５の各々に対する離隔距離を確保でき、後退してきたサスクロス７との干渉による燃料配管８，９の変形や破損を防止しつつ、排気浄化触媒１５から燃料配管８，９への熱害の発生（熱による燃料配管８，９の変形や破損）を防止できる。したがって、燃料配管８，９の保護性能を高めることができる。 By arranging the intermediate portions 8B and 9B of the fuel pipes 8 and 9 in front of the exhaust purification catalyst 15 and behind the suspension cloth 7 in this way, the separation distances from the suspension cloth 7 and the exhaust purification catalyst 15 are secured. This prevents the fuel pipes 8, 9 from being deformed or damaged due to interference with the retreating suspension cloth 7, while preventing heat damage from the exhaust gas purification catalyst 15 to the fuel pipes 8, 9 (heat damage to the fuel pipes 8, 9). deformation and breakage) can be prevented. Therefore, the protection performance of the fuel pipes 8 and 9 can be enhanced.
　（２）上記の実施例では、例えば図２に示すように、燃料配管８，９の中間部８Ｂ，９Ｂが、車両前後方向で排気浄化触媒１５の前端と同等の位置に配置される。これにより、排気浄化触媒１５による熱害が防止される範囲でサスクロス７と中間部８Ｂ，９Ｂとの離隔距離を最大限まで大きくすることができる。したがって、サスクロス７との干渉防止効果を高めることができ、燃料配管８，９の保護性能をさらに向上させることができる。 (2) In the above embodiment, for example, as shown in FIG. 2, the intermediate portions 8B, 9B of the fuel pipes 8, 9 are arranged at the same position as the front end of the exhaust purification catalyst 15 in the longitudinal direction of the vehicle. As a result, the separation distance between the suspension cloth 7 and the intermediate portions 8B, 9B can be maximized within a range in which heat damage due to the exhaust purification catalyst 15 can be prevented. Therefore, the effect of preventing interference with the suspension cloth 7 can be enhanced, and the performance of protecting the fuel pipes 8 and 9 can be further enhanced.
　（３）上記の実施例では、例えば図１に示すように、燃料配管８，９の中間部８Ｂ，９Ｂが、バックボーン３の内側において遮熱板１３よりも上方を通って前方部８Ａ，９Ａに接続される。これにより、排気浄化触媒１５による燃料配管８，９への熱害を確実に防止でき、燃料配管８，９の保護性能を高めることができる。また、遮熱板１３よりも上方に電線管１１を通すことで、電線管１１への熱害を確実に防止でき、電線管１１の保護性能を高めることができる。 (3) In the above embodiment, as shown in FIG. 1, the intermediate portions 8B and 9B of the fuel pipes 8 and 9 pass through the inside of the backbone 3 above the heat shield plate 13 and pass through the front portions 8A and 9A. connected to As a result, heat damage to the fuel pipes 8 and 9 due to the exhaust purification catalyst 15 can be reliably prevented, and the protection performance of the fuel pipes 8 and 9 can be enhanced. Further, by passing the conduit 11 above the heat shield plate 13, heat damage to the conduit 11 can be reliably prevented, and the protective performance of the conduit 11 can be enhanced.
　（４）上記の実施例では、前方部８Ａ，９Ａがバックボーン３の内側に配置される。これにより、前方部８Ａ，９Ａがダッシュパネル４とサスクロス７との間に挟まれにくくなる。したがって、燃料配管８，９の保護性能をさらに高めることができる。 (4) In the above embodiment, the front portions 8A, 9A are arranged inside the backbone 3. As a result, the front portions 8A and 9A are less likely to be caught between the dash panel 4 and the suspension cloth 7.例文帳に追加Therefore, the protection performance of the fuel pipes 8 and 9 can be further enhanced.
　（５）上記の実施例では、例えば図３に示すように、燃料配管８，９の前方部８Ａ，９Ａ及び電線管１１が、バックボーン３の上面及びダッシュパネル４に沿って配索されうる。また、燃料配管８，９の前方部８Ａ，９Ａは、電線管１１よりもダッシュパネル４に近い位置に配置されうる。このようなレイアウトにより、前方部８Ａ，９Ａの前方（図３中の左側）を電線管１１でガードすることができる。したがって、仮にエンジンルーム１０内の各種装置が車両後方側へと移動してきたとしても、その各種装置が燃料配管８，９と干渉することを防止でき、燃料配管８，９の保護性能を高めることができる。 (5) In the above embodiment, the front portions 8A, 9A of the fuel pipes 8, 9 and the conduit 11 can be routed along the upper surface of the backbone 3 and the dash panel 4, as shown in FIG. 3, for example. Further, the front portions 8A, 9A of the fuel pipes 8, 9 can be arranged at positions closer to the dash panel 4 than the conduit 11 is. With such a layout, the front of the front portions 8A and 9A (the left side in FIG. 3) can be guarded by the conduit 11. As shown in FIG. Therefore, even if various devices in the engine room 10 move to the rear side of the vehicle, the various devices can be prevented from interfering with the fuel pipes 8 and 9, and the protection performance of the fuel pipes 8 and 9 can be improved. can be done.
　（６）上記の実施例では、例えば図４に示すように、正面視で前方部８Ａ，９Ａと電線管１１とが重ならないように車幅方向に離隔して配索されうる。このように、前方部８Ａ，９Ａと電線管１１とを車幅方向にずらして配置することで、仮に電線管１１が各種装置に押圧されて車両後方側へ移動したとしても、電線管１１と前方部８Ａ，９Ａとの直接的な接触を防止することができる。したがって、燃料配管８，９の保護性能を高めることができる。 (6) In the above embodiment, for example, as shown in FIG. 4, the front portions 8A, 9A and the wire tube 11 can be laid apart in the vehicle width direction so that they do not overlap when viewed from the front. By displacing the front portions 8A, 9A and the conduit 11 in the vehicle width direction in this way, even if the conduit 11 is pushed by various devices and moves toward the rear of the vehicle, the conduit 11 and Direct contact with the front parts 8A, 9A can be prevented. Therefore, the protection performance of the fuel pipes 8 and 9 can be enhanced.
　（７）上記の実施例では、例えば図３に示すように、燃料配管８，９の前方部８Ａ，９Ａ及び電線管１１が、ブラケット１２を介してダッシュクロス５に固定されうる。このように、燃料配管８，９及び電線管１１をダッシュクロス５に取り付けることで、これらの固定状態を安定させることができる。また、エンジン１６やモータ１８をダッシュクロス５よりも下方に配置すれば、これらの装置が前突時に後方へ移動してきたとしても、ブラケット１２に対する直撃を回避できる。したがって、燃料配管８，９や電線管１１の保護性能を高めることができる。 (7) In the above embodiment, the front portions 8A, 9A of the fuel pipes 8, 9 and the electric conduit 11 can be fixed to the dash cloth 5 via the bracket 12, as shown in FIG. 3, for example. By attaching the fuel pipes 8 and 9 and the wire tube 11 to the dash cloth 5 in this manner, the fixed state thereof can be stabilized. Further, if the engine 16 and the motor 18 are arranged below the dash cross 5, even if these devices move rearward during a frontal collision, a direct hit to the bracket 12 can be avoided. Therefore, the protection performance of the fuel pipes 8 and 9 and the wire tube 11 can be enhanced.
［３．その他］
　上記の実施例はあくまでも例示に過ぎず、本実施例で明示しない種々の変形や技術の適用を排除する意図はない。本実施例の各構成は、それらの趣旨を逸脱しない範囲で種々変形して実施できる。また、本実施例の各構成は、必要に応じて取捨選択でき、あるいは、適宜組み合わせることができる。 [3. others]
The above embodiment is merely an example, and is not intended to exclude various modifications and application of techniques not explicitly described in this embodiment. Each configuration of this embodiment can be modified in various ways without departing from the scope of the invention. Moreover, each configuration of the present embodiment can be selected or combined as needed.
　上記の実施例では、メイン配管８とベーパ配管９とが別設された燃料配管８，９を例示したが、これらを一体化させてもよい。例えば、液体燃料の流路と燃料蒸気の流路とが一つの管内で独立して設けられた二重管を用いて、同様の配管構造を形成してもよい。少なくとも、燃料配管８，９の中間部８Ｂ，９Ｂがサスクロス７及び排気浄化触媒１５の各々に対して離隔するように、中間部８Ｂ，９Ｂの位置を排気浄化触媒１５よりも前方かつサスクロス７よりも後方に設定することで、上述の実施形態と同様の効果を奏するものとなる。 In the above embodiment, the fuel pipes 8, 9 in which the main pipe 8 and the vapor pipe 9 are separately provided are exemplified, but they may be integrated. For example, a similar piping structure may be formed using a double pipe in which a liquid fuel flow path and a fuel vapor flow path are provided independently within one pipe. At least, the positions of the intermediate portions 8B and 9B of the fuel pipes 8 and 9 are positioned forward of the exhaust purification catalyst 15 and from the suspension cloth 7 so that the intermediate portions 8B and 9B of the fuel pipes 8 and 9 are separated from the suspension cloth 7 and the exhaust purification catalyst 15, respectively. By also setting the rearward position, the same effect as in the above-described embodiment can be obtained.
　本件は、燃料配管を有する車両（エンジンが搭載されたエンジン車両やハイブリッド車両）の製造産業に利用可能である。 This case can be used in the manufacturing industry of vehicles with fuel pipes (engine vehicles and hybrid vehicles equipped with an engine).
１　車両
２　フロアパネル
３　バックボーン（バックボーンフレーム）
４　ダッシュパネル
５　ダッシュクロス（ダッシュクロスメンバ）
６　サイドメンバ
７　サスクロス（フロントサスクロスメンバ）
８　メイン配管（燃料配管）
９　ベーパ配管（燃料配管）
８Ａ，９Ａ　前方部
８Ｂ，９Ｂ　中間部
８Ｃ，９Ｃ　後方部
１０　エンジンルーム
１１　電線管
１２　ブラケット
１３　遮熱板
１４　排気通路
１５　排気浄化触媒
１６　エンジン
１７　燃料タンク
１８　モータ
１９　バッテリ
２０　バッテリ配置用掘り込み部
２１　配管溝
２２　第二ブラケット
  1 vehicle 2 floor panel 3 backbone (backbone frame)
4 dash panel 5 dash cross (dash cross member)
6 side member 7 suspension cross (front suspension cross member)
8 Main piping (fuel piping)
9 Vapor piping (fuel piping)
8A, 9A Front portions 8B, 9B Intermediate portions 8C, 9C Rear portion 10 Engine room 11 Conduit 12 Bracket 13 Heat shield plate 14 Exhaust passage 15 Exhaust purification catalyst 16 Engine 17 Fuel tank 18 Motor 19 Battery 20 Carved portion for battery arrangement 21 Piping groove 22 Second bracket

Claims (7)

  1. 　フロアパネルの車幅方向中央部において上方に突出して車両前後方向に延びた形状に形成されるバックボーンと、前記バックボーンの内側に配置される排気浄化触媒と、前記バックボーンを車幅方向に挟んで車両前後方向に延びる一対のサイドメンバと、前記一対のサイドメンバの間を車幅方向に架け渡されてサスペンション装置を支持するサスクロスとを備えた車両において、エンジンルーム内のエンジンと前記エンジンルーム外の燃料タンクとを接続する燃料配管の保護構造であって、
    　前記燃料配管が、
    　車両前後方向に延在し、前記エンジンに至る前方部と、
    　前記バックボーンの外側で車両前後方向に延在し、前記燃料タンクに至る後方部と、
    　前記サスクロス及び前記排気浄化触媒の各々に対して離隔して、前記排気浄化触媒よりも前方かつ前記サスクロスよりも後方で車幅方向に延在し、前記前方部の後端と前記後方部の前端とを接続する中間部と、を有する
    ことを特徴とする、燃料配管の保護構造。     A backbone formed in a shape extending in the longitudinal direction of the vehicle by protruding upward at the central portion of the floor panel in the vehicle width direction, an exhaust purification catalyst disposed inside the backbone, and a vehicle with the backbone sandwiched in the vehicle width direction In a vehicle including a pair of side members extending in the front-rear direction and a suspension cross that spans between the pair of side members in the vehicle width direction and supports a suspension device, an engine inside an engine room and an engine outside the engine room. A protective structure for a fuel pipe that connects to a fuel tank,
    The fuel pipe
    a front portion extending in the longitudinal direction of the vehicle and reaching the engine;
    a rear portion extending in the longitudinal direction of the vehicle outside the backbone and reaching the fuel tank;
    A rear end of the front portion and a front end of the rear portion are spaced apart from each of the suspension cloth and the exhaust purification catalyst and extend in the vehicle width direction forward of the exhaust purification catalyst and rearward of the suspension cloth. A protective structure for a fuel pipe, comprising: an intermediate portion connecting the
  2. 　前記中間部が、車両前後方向で前記排気浄化触媒の前端と同等の位置に配置される
    ことを特徴とする、請求項１記載の燃料配管の保護構造。     2. The fuel pipe protection structure according to claim 1, wherein said intermediate portion is arranged at a position equivalent to a front end of said exhaust purification catalyst in the longitudinal direction of the vehicle.
  3. 　前記バックボーンの内側で前記排気浄化触媒の上方を覆う遮熱板を備え、
    　前記中間部が、前記バックボーンの内側において前記遮熱板よりも上方を通って前記前方部に接続される
    ことを特徴とする、請求項１または２記載の燃料配管の保護構造。     A heat shield plate covering the upper side of the exhaust purification catalyst inside the backbone,
    3. The fuel pipe protection structure according to claim 1, wherein said intermediate portion passes above said heat shield plate inside said backbone and is connected to said front portion.
  4. 　前記前方部が、前記バックボーンの内側に配置される
    ことを特徴とする、請求項１～３のいずれか１項に記載の燃料配管の保護構造。     The fuel pipe protection structure according to any one of claims 1 to 3, wherein the front part is arranged inside the backbone.
  5. 　前記バックボーンの内側を通って前記エンジンルーム内のモータと前記バックボーンの後方に配置されるバッテリとを接続する高電圧線が内挿された中空の電線管と、
    　前記バックボーンが形成される前記フロアパネルの前端から上方に向かって延設されるダッシュパネルとを備え、
    　前記燃料配管の前記前方部及び前記電線管が、前記バックボーンの上面及び前記ダッシュパネルに沿って配索されるとともに、側面視において前記前方部が前記電線管よりも前記ダッシュパネルに近い位置に配置される
    ことを特徴とする、請求項１～４のいずれか１項に記載の燃料配管の保護構造。     a hollow electric conduit in which a high-voltage line is inserted to connect a motor in the engine room and a battery arranged behind the backbone through the inside of the backbone;
    a dash panel extending upward from the front end of the floor panel on which the backbone is formed;
    The front portion of the fuel pipe and the conduit are routed along the upper surface of the backbone and the dash panel, and the front portion is arranged at a position closer to the dash panel than the conduit in a side view. The protective structure for a fuel pipe according to any one of claims 1 to 4, characterized in that:
  6. 　前記燃料配管の前記前方部及び前記電線管のうち、前記ダッシュパネルに沿って配索される部分について、正面視で前記前方部及び前記電線管が重ならないように車幅方向に離隔して配索される
    ことを特徴とする、請求項５記載の燃料配管の保護構造。     Of the front portion of the fuel pipe and the conduit, the portion routed along the dash panel is spaced apart in the vehicle width direction so that the front portion and the conduit do not overlap when viewed from the front. 6. The fuel pipe protection structure according to claim 5, wherein the protection structure is corded.
  7. 　前記ダッシュパネルの前側面にて車幅方向に延びて設けられるダッシュクロスを備え、
    　前記燃料配管の前記前方部及び前記電線管が、ブラケットを介して前記ダッシュクロスに固定されるとともに、
    　前記エンジン及び前記モータが、前記ダッシュクロスよりも下方に配置される
    ことを特徴とする、請求項５または６記載の燃料配管の保護構造。     A dash cloth provided extending in the vehicle width direction on the front side surface of the dash panel,
    The front portion of the fuel pipe and the conduit are fixed to the dash cloth via brackets,
    7. The fuel pipe protection structure according to claim 5, wherein said engine and said motor are arranged below said dash cloth.
PCT/JP2022/005578 2022-02-14 2022-02-14 Protective structure for fuel pipe WO2023152945A1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0412067A1 (en) * 1989-08-04 1991-02-06 ERGOM MATERIE PLASTICHE S.p.A A subassembly for the fuel supply to a motor vehicle engine
JPH0558346A (en) * 1991-08-28 1993-03-09 Toyota Motor Corp Lower part structure for car body
JP2007276614A (en) * 2006-04-06 2007-10-25 Suzuki Motor Corp Canister piping structure
JP2019025937A (en) * 2017-07-25 2019-02-21 マツダ株式会社 Fuel pipe fixing structure
JP2019177705A (en) * 2016-07-11 2019-10-17 本田技研工業株式会社 Vehicle body substructure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0412067A1 (en) * 1989-08-04 1991-02-06 ERGOM MATERIE PLASTICHE S.p.A A subassembly for the fuel supply to a motor vehicle engine
JPH0558346A (en) * 1991-08-28 1993-03-09 Toyota Motor Corp Lower part structure for car body
JP2007276614A (en) * 2006-04-06 2007-10-25 Suzuki Motor Corp Canister piping structure
JP2019177705A (en) * 2016-07-11 2019-10-17 本田技研工業株式会社 Vehicle body substructure
JP2019025937A (en) * 2017-07-25 2019-02-21 マツダ株式会社 Fuel pipe fixing structure

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