JP5627118B2 - Vehicle fuel supply device - Google Patents

Description

  The present invention relates to a fuel supply device for a vehicle in which a fuel tank is disposed under the floor of a vehicle body, and a canister that adsorbs evaporated fuel generated from the fuel tank is disposed under the floor and in front of the vehicle body of the fuel tank.

As an example of a vehicle body layout in which a fuel supply device for a vehicle is arranged, an exhaust device in which an exhaust pipe is extended from the front of an engine (power plant) is known.
This technology is an exhaust device configured by connecting a volume part such as a catalytic converter or a muffler with an exhaust pipe, and a weakly rigid part is provided in a part of the volume part located at the uppermost stream, and an exhaust pipe end is provided in the weakly rigid part. And the rear exhaust system having a large mass after the most upstream volume portion is supported on the vehicle body so as not to swing.

  According to this technique, the rear exhaust system having a large mass is supported on the vehicle body so as not to swing, so that noise and vibration can be reduced (see, for example, Patent Document 1).

Japanese Patent Laid-Open No. 7-54650

Here, in the technique of Patent Document 1, an exhaust pipe is extended from the front of a power plant (engine), and the exhaust pipe passes below the power plant and extends rearward of the vehicle body.
As described above, the canister has a front exhaust structure in which the exhaust pipe extends from the front of the power plant, is supported by the subframe (subchassis), and temporarily stores the evaporated fuel (evaporated gas) from the fuel tank. In the fuel supply system for a vehicle, which is disposed under the floor and behind the subframe, the exhaust pipe passes below the subframe, so that the set height of the subframe is increased, and the canister is protected by the subframe. Becomes difficult. Therefore, it is desirable to protect the canister by some means.

  An object of the present invention is to provide a fuel supply device for a vehicle that can protect the canister from scattered objects from the front, even in a layout in which the canister is arranged under the floor.

  In the invention according to claim 1, a fuel tank is disposed under the floor of the vehicle body, a canister for adsorbing evaporated fuel generated from the fuel tank is disposed under the floor and in front of the vehicle body of the fuel tank, and in the vehicle width direction in front of the canister. In a vehicle fuel supply device provided with an extending guard member, a power plant disposed in front of the vehicle body on a vehicle body, a subframe that supports the power plant, a torque rod that connects the power plant and the subframe, A rod mounting portion formed on the sub-frame for attaching the torque rod; and a cover member provided on the rod mounting portion; the guard member is provided at a position lower than the bottom of the fuel tank; and the canister is covered It is located behind the member.

  The invention according to claim 2 is characterized in that the lower end portion of the cover member is located higher than the lower end portion of the guard member.

  The invention according to claim 3 is characterized in that the exhaust pipe for guiding the exhaust gas of the power plant is extended from the front of the vehicle body.

The present invention has the following effects.
In the invention according to claim 1, a fuel tank is disposed under the floor of the vehicle body, a canister that adsorbs evaporated fuel generated from the fuel tank is disposed under the floor and in front of the vehicle body of the fuel tank, and in the vehicle width direction in front of the canister. An extending guard member is provided to constitute a vehicle fuel supply device.
A power plant disposed in front of the vehicle body, a sub-frame that supports the power plant, a torque rod that connects the power plant and the sub-frame, and a rod mounting portion that is formed on the sub-frame and attaches the torque rod to the vehicle body And a cover member provided on the rod mounting portion.
The guard member was provided at a position lower than the bottom of the fuel tank, and the canister was positioned behind the cover member. Therefore, the canister can be protected from scattered objects from the front even if the canister is arranged under the floor instead of in the engine room.

  In the invention which concerns on Claim 2, since the lower end part of a cover member exists in a position higher than the lower end part of a guard member, even if a guard member is in a low position in order to protect a fuel tank, a canister is covered with a cover member. Can be protected.

  In the invention which concerns on Claim 3, the exhaust pipe which guides the exhaust gas of a power plant has the front exhaust structure extended from the front of the vehicle body. Therefore, the exhaust pipe needs to pass under the subframe. That is, the canister can be protected by the cover member even when the subframe is at a high position for passing the exhaust pipe under the subframe.

It is a bottom view which shows the fuel supply apparatus of the vehicle which concerns on this invention. It is a front view of the fuel supply apparatus of the vehicle shown by FIG. It is a side view of the fuel supply apparatus of the vehicle shown by FIG. It is action | operation explanatory drawing of the fuel supply apparatus of the vehicle shown by FIG. FIG. 5 is an enlarged view of part 5 of FIG. 4.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals.

  As shown in FIGS. 1 to 3, the vehicle 10 includes a dashboard lower 17 extending in the vehicle width direction and partitioned into a vehicle compartment 12 and an engine room 13, and left and right vehicles extending in the longitudinal direction of the vehicle body. Front side frames (side frames) 18, 18, left and right floor frames 19, 19 extending rearward from the rear ends of these front side frames 18, 18, and vehicle widths of these floor frames 19, 19 Left and right side sills 21, 21 extending in the longitudinal direction of the vehicle body on the outside, left and right outriggers 22, 22 connecting the front portions of the left and right side sills 21, 21 and the front portions of the left and right floor frames 19, 19 in the vehicle width direction; The dashboard cross member 23 that connects the front portions of the left and right floor frames 19, 19 in the vehicle width direction, and the middle of the left and right floor frames 19, 19 A floor cross member 24 connected in the width direction, a floor cross member 24, a dashboard side cross member 23, left and right outriggers 22, 22, left and right side sills 21, 21 and a floor covering the upper part of the left and right floor frames 19, 19 (vehicle body Floor) 25 and a subframe (subchassis) 26 that supports the power plant 27.

  The vehicle fuel supply device 30 includes a fuel tank 35 disposed below the floor (body floor) 25 of the vehicle body 11, a canister 36 disposed in front of the fuel tank 35 and adsorbing evaporated fuel generated from the fuel tank 35, This is an arrangement structure of a guard member (guard pipe) 37 that protects the fuel tank 35 and a cover member (torque rod cover) 39 that protects the torque rod 38 connected to the power plant 27 and the subframe 26. Details will be described below.

  The power plant 27 is a member composed of an engine 31 and a transmission 32, and is disposed in front of the vehicle body (engine room 13). The power plant 27 has a front exhaust structure in which an exhaust pipe 33 that guides the exhaust gas 33 extends from the front of the vehicle body 11. Therefore, the exhaust pipe 33 needs to pass under the subframe 26. Furthermore, the power plant 27 is supported by the subframe 26 via a torque rod 38.

  The torque rod 38 is a support rod for supporting the power plant 27 on the subframe 26 and suppressing vibration transmission from the powerplant 27 to the subframe 26, and is passed between the engine 31 and the subframe 26 ( The power plant 27 and the subframe 26 are connected).

  The sub frame 26 is a member that is floatingly supported by the left and right front side frames 18 and 18 and the dashboard side cross member 23. Further, the subframe 26 is formed with a recess 42 for allowing the exhaust pipe 33 to pass therethrough, and a rod mounting portion 41 for attaching the torque rod 38 is formed in the recess 42.

  The rod attachment portion 41 is provided with a cover member (torque rod guard) 39 that covers the torque rod 38 on the subframe 26 side. Accordingly, the canister 36 can be protected by the cover member 39 even when the sub frame 26 is at a high position for passing the exhaust pipe 33 under the sub frame 26.

Below the floor (body floor) 25, a fuel tank 35 for storing fuel, a canister 36 that is disposed in front of the fuel tank 35 and adsorbs evaporated fuel generated from the fuel tank 35, and a front of the canister 36 And a guard member (guard pipe) 37 that protects the canister 36 and the fuel tank 35, and extends from the front of the vehicle body of the power plant 27 (engine 31), passes under the subframe 26, and An exhaust pipe 33 passing through the side and extending rearward of the vehicle body is disposed.

  The fuel tank 35 is disposed substantially at the vehicle body center C1. More specifically, the front is disposed close to the floor cross member 24, the side is disposed close to the left and right floor frames 19, 19, and is fixed to the vehicle body 11 side by the left and right tank bands 45, 45. .

  The canister 36 is disposed outside the vehicle width (on the right side of the vehicle body 11) with respect to the vehicle body center C1. The front part of the canister 36 is supported by the dashboard side cross member 23, and the rear part of the canister 36 is supported by the vehicle body floor 25.

The canister 36 is positioned behind the cover member (torque rod cover) 39. Thereby, even if it is the layout which arrange | positions the canister 36 under the floor (vehicle body floor) 25 instead of in the engine room 13, the canister 36 can be protected from the scattered matter from the front.
The canister 36 has a front portion 46 attached to the dashboard-side cross member 23 and a rear portion 47 attached to the floor (vehicle body floor) 25.

  The guard member 37 is a member that extends in front of the fuel tank 35 and the canister 36 and extends from the right floor frame 19 to the dashboard-side cross member 23 in the vehicle width direction. Further, the guard member 37 is provided at a position lower than the bottom 35 a of the fuel tank 35. Specifically, the lower end portion 37a of the guard member 37 is set to a position lower than the bottom portion 35a of the fuel tank 35 by a dimension S1 (see FIG. 3).

  That is, the guard member 37 includes a left attachment portion 51 attached to the dashboard-side cross member 23, a vertical portion 52 extending substantially vertically downward from the left attachment portion 51, and a rear view (plan view) of the canister 36. From the parallel portion 53 along the front part (in the vehicle width direction), the inclined portion 54 inclined to the vehicle body rearward toward the vehicle width outward side on the right floor frame 19 side of the canister 36, and the inclined portion 54 And a right attachment portion 55 provided outside the vehicle width and attached to the right floor frame 19.

  By providing the parallel part 53 on the guard member 37, the front of the canister 36 can be protected by the guard member 37. By providing the guard member 37 with the inclined portion 54, the right side of the canister 36 can be protected by the guard member 37.

  The lower end 39 a of the cover member (torque rod cover) 39 is set at a position higher than the lower end 37 a of the guard member (guard pipe) 37. Thereby, even if the guard member 37 is in a low position to protect the fuel tank 35, the canister 36 can be protected by the cover member 39.

  Specifically, the exhaust pipe 33 includes a substantially L-shaped extension pipe 61 that extends from the front of the vehicle body of the power plant 27 (engine 31) and from the left of the vehicle body center C1, and the vehicle body from the tip of the extension pipe 61. A vertical pipe 62 that extends downward, a front parallel pipe 63 that extends rearward from the front end of the vertical pipe 62 and parallel to the vehicle body center C1, and a rear side of the vehicle body that extends outward from the front end of the front parallel pipe 63 toward the vehicle width. And a rear parallel pipe 65 extending from the tip of the inclined pipe 64 to the rear of the vehicle body.

  The front parallel pipe 63 passes under the subframe 26 and extends rearward of the vehicle body. The inclined pipe 64 is provided with a catalyst unit 66 that purifies the exhaust gas. The rear parallel pipe 65 passes between the side of the fuel tank 35 and the left floor frame 19.

  As shown in FIG. 4A, in the vehicle fuel supply device 30, the lower end portion 36 a of the canister 36 is set at a position higher than the lower end portion 39 a of the cover member (torque rod cover) 39. The lower end portion 39 a of the cover member 39 is set at a position higher than the lower end portion 37 a of the guard member (guard pipe) 37.

  That is, as shown in FIG. 5, from the lower end portion 37a of the guard member 37 to the fixed-volume ground level GL when the vehicle height reference line when there is a specified boarding capacity is the fixed-volume ground level GL. When the height from the lower end 39a of the cover member 39 to the fixed-volume ground level GL is h2, and the height from the lower end 36a of the canister 36 to the fixed-volume ground level GL is h3. The heights h1 to h3 are set as h1 <h2 <h3.

  4B, in the vehicle fuel supply device 30, the center of the torque rod 38, the center of the cover member 39 (torque rod cover), and the parallel portion 53 of the guard member (guard pipe) 37 are provided. And the canister 36 are disposed on an extension line C2 extending in the longitudinal direction of the vehicle body.

  As shown in FIGS. 1 to 5, in the vehicle fuel supply device 30, a fuel tank 35 is disposed below the floor (body floor) 25 of the vehicle body 11, and below the floor (body floor) 25 and the fuel tank 35. A canister 36 that adsorbs evaporated fuel generated from the fuel tank 35 is disposed in front of the vehicle body, and a guard member (guard pipe) 37 extending in the vehicle width direction is provided in front of the canister 36.

  A power plant 27 disposed in front of the vehicle body, a subframe 26 that supports the powerplant 27, a torque rod 38 that connects the powerplant 27 and the subframe 26, and a subframe 26 are formed on the vehicle body 11. A rod attachment portion 41 for attaching the torque rod 38 and a cover member 39 provided on the rod attachment portion 41 are provided.

  As shown in FIG. 3, the guard member (guard pipe) 37 is provided at a position lower than the bottom 35a of the fuel tank 35, and the canister 36 is positioned behind the cover member (torque rod cover) 39. It was. Therefore, the canister 36 can be protected from scattered objects from the front even in a layout in which the canister 36 is disposed not under the engine room 13 but under the floor (vehicle body floor) 25.

  As shown in FIGS. 3 and 5, in the vehicle fuel supply device 30, the lower end portion 39 a of the cover member 39 is located higher than the lower end portion 37 a of the guard member 37. The canister 36 can be protected by the cover member 39 even in a low position in order to protect 35.

  As shown in FIG. 1, the vehicle fuel supply device 30 has a front exhaust structure in which an exhaust pipe 33 that guides the exhaust gas of the power plant 27 extends from the front of the vehicle body 11. Therefore, the exhaust pipe 33 needs to pass under the subframe 26. That is, the canister 36 can be protected by the cover member 39 even when the sub frame 26 is at a high position because the exhaust pipe 33 is passed under the sub frame 26.

  In the vehicle fuel supply apparatus according to the present invention, as shown in FIG. 1, the exhaust pipe 33 is disposed on the left side of the vehicle body 11 on the floor (vehicle body floor) 25, and a canister 36, a guard member 37, a torque rod 38, Although the cover member 39 is disposed on the right side of the vehicle body 11, the present invention is not limited to this. The exhaust pipe is disposed on the right side of the vehicle body on the floor (vehicle body floor), and the canister, guard member, torque rod, and cover member are provided on the vehicle body. It may be arranged on the left side.

  In this case, the parallel part 53 and the inclined part 54 of the guard member are also formed symmetrically with respect to the vehicle body center C1.

  The vehicle fuel supply device according to the present invention is suitable for use in passenger cars such as sedans and wagons.

  DESCRIPTION OF SYMBOLS 10 ... Vehicle, 11 ... Vehicle body, 18 ... Side frame (front side frame), 25 ... Floor (vehicle body floor), 26 ... Sub-frame, 27 ... Power plant, 30 ... Fuel supply device of vehicle, 33 ... Exhaust pipe, 35 DESCRIPTION OF SYMBOLS ... Fuel tank, 36 ... Canister, 37 ... Guard member (guard pipe), 38 ... Torque rod, 39 ... Cover member (torque rod cover), 41 ... Rod attachment part, C1 ... Center of vehicle body, C2 ... Extension line.

Claims (3)

A fuel tank is disposed under the floor of the vehicle body, a canister that adsorbs evaporated fuel generated from the fuel tank is disposed under the floor and in front of the vehicle body of the fuel tank, and a guard member extending in the vehicle width direction is disposed in front of the canister. In the vehicle fuel supply device provided,
The vehicle body includes a power plant disposed in front of the vehicle body, a subframe that supports the power plant, a torque rod that connects the power plant and the subframe, and a rod that is formed on the subframe and attaches the torque rod. An attachment portion, and a cover member provided on the rod attachment portion,
The fuel supply device for a vehicle, wherein the guard member is provided at a position lower than a bottom portion of the fuel tank, and the canister is positioned behind the cover member.   2. The vehicle fuel supply device according to claim 1, wherein a lower end portion of the cover member is positioned higher than a lower end portion of the guard member.   The fuel supply apparatus for a vehicle according to claim 1 or 2, wherein the power plant has an exhaust pipe for leading exhaust gas extending from the front of the vehicle body.

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