JP7121343B2 - Reductant inlet structure - Google Patents

Description

The present invention relates to a reducing agent injection port structure in an automobile provided with a reducing agent tank for storing a reducing agent for reducing exhaust gas discharged from an internal combustion engine.

2. Description of the Related Art An automobile equipped with an engine (internal combustion engine) is provided with an exhaust purification device such as a catalytic converter in order to reduce harmful components in exhaust gas discharged from the engine.

In recent years, as one of the exhaust purification devices, a reduction catalytic converter is provided for reducing nitrogen oxides (NO _x ) contained in the exhaust gas through a reduction reaction. As a reducing agent), an aqueous urea solution (urea water) that generates ammonia by thermal decomposition is used.

A vehicle using such urea water as a reducing agent is provided with a reducing agent tank for storing the urea water to be injected into the exhaust passage, and the reducing agent tank is replenished with the urea water. A replenishment port is provided for refilling (see, for example, Patent Document 1).

JP 2009-96223 A

In the technique described in Patent Document 1, since the space for installing the injection port is secured directly above the urea tank, the volume of the urea tank must be reduced. This is because a predetermined distance must be secured between the urea tank and the ground in consideration of chipping, etc., thrown up from the tire, and the installation position of the urea tank cannot be moved downward.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to secure a sufficient volume of the reducing agent tank while securing a predetermined distance between the reducing agent tank and the ground.

A reducing agent injection port structure according to a first invention for solving the above problems is a reducing agent injection port structure for a vehicle equipped with an exhaust purification device for injecting a reducing agent into an exhaust passage of an engine to purify exhaust gas. a reducing agent tank mounted below a floor panel of the vehicle and storing a reducing agent; and a replenishing pipe for replenishing the reducing agent to the reducing agent tank from a replenishing port provided at one end thereof, wherein the replenishing pipe has a first replenishment pipe portion extending in the vertical direction of the vehicle from the replenishment port, and the replenishment port and the first replenishment pipe portion are located at the rear end portion of the vehicle and on the vehicle rear side of the reducing agent tank. It is characterized in that it is arranged in
A reducing agent injection port structure according to a second invention for solving the above problems is the reducing agent injection port structure according to the first invention, wherein the supply pipe is bent from the first supply pipe portion to form the reducing agent tank. and a second replenishing pipe portion disposed on the side of the reducing agent tank, wherein the second replenishing pipe portion is connected to the side surface of the reducing agent tank.

A reducing agent injection port structure according to a third invention for solving the above problems is the reducing agent injection port structure according to the first or second invention, wherein the supply port is covered with a lid member attached to the floor panel. It is characterized in that it is arranged below the floor surface of the vehicle, and a seal member is arranged between the lid member and the floor panel.
A reducing agent injection port structure according to a fourth invention for solving the above-mentioned problems is the reducing agent injection port structure according to the first, second, or third invention, wherein the lid member is located at the vehicle rear end of the floor panel. It is characterized by being arranged along.

According to the reducing agent injection port structure according to the present invention, since the first replenishing pipe portion is arranged on the vehicle rear side of the reducing agent tank, a predetermined distance is secured between the reducing agent tank and the ground. A sufficient volume of the reducing agent tank can be secured. In addition, urea water can be easily supplied to the supply port from the rear side of the vehicle by arranging the supply port at the rear end of the vehicle. Furthermore, since the replenishment pipe has the second replenishment pipe portion, the reducing agent can be smoothly circulated while being relatively compact in the vertical direction. In addition, by arranging the supply port below the floor surface and sealing the lid member with the sealing member, it is possible to prevent the smell of urea from entering the passenger compartment .

FIG. 2 is an explanatory diagram showing the configuration of an automobile having a reducing agent injection port structure according to Example 1; FIG. 5 is an explanatory view showing the assembly direction of the reducing agent tank, the first replenishing unit, and the second replenishing unit in the reducing agent injection port structure according to the first embodiment; FIG. 2 is an explanatory view (cross-sectional view taken along the line III-III in FIG. 1) showing the structure in the vicinity of the reducing agent replenishing port in the reducing agent injection port structure according to Example 1; FIG. 3 is an explanatory view (corresponding to a cross-sectional view taken along the line IV-IV in FIG. 1) showing the assembly procedure of the first replenishment unit in the reducing agent injection port structure according to the first embodiment; FIG. 3 is an explanatory view (corresponding to a cross-sectional view taken along the line IV-IV in FIG. 1) showing the assembly procedure of the first replenishment unit in the reducing agent injection port structure according to the first embodiment; FIG. 3 is an explanatory view (corresponding to a cross-sectional view taken along the line IV-IV in FIG. 1) showing the assembly procedure of the first replenishment unit in the reducing agent injection port structure according to the first embodiment; FIG. 3 is an explanatory view (corresponding to a cross-sectional view taken along the line IV-IV in FIG. 1) showing the assembly procedure of the first replenishment unit in the reducing agent injection port structure according to the first embodiment; FIG. 5 is an explanatory view showing the lower surface side of the floor panel with the first replenishment unit assembled in the reducing agent injection port structure according to the first embodiment; FIG. 3 is an explanatory view (corresponding to the cross-sectional view taken along the line III-III in FIG. 1) showing an example in which the assembly configuration of the first replenishment unit and the second replenishment unit in the reducing agent injection port structure according to Example 1 is changed; FIG. 3 is an explanatory view (corresponding to the cross-sectional view taken along the line III-III in FIG. 1) showing an example in which the assembly configuration of the first replenishment unit and the second replenishment unit in the reducing agent injection port structure according to Example 1 is changed;

An embodiment of a reducing agent injection port structure according to the present invention will be described in detail below with reference to the accompanying drawings. Of course, the present invention is not limited to the following examples, and it goes without saying that various modifications are possible without departing from the scope of the present invention.

Embodiment 1 A reducing agent inlet structure according to Embodiment 1 of the present invention will be described with reference to FIGS. 1 to 5. FIG.

As shown in FIG. 1, a vehicle 1 is provided with a floor panel 11 that constitutes the lower structure of the vehicle (forms the bottom of the vehicle compartment). An exhaust passage 12 connected to an internal combustion engine is provided, and a reducing agent tank 13 for storing a reducing agent (for example, urea aqueous solution) capable of purifying exhaust gas is provided.

Here, the reducing agent tank 13 constitutes a part of an exhaust purification device that injects a reducing agent into the exhaust passage of the engine to purify the exhaust gas, and the reducing agent stored in the reducing agent tank 13 is The reducing agent is injected into the exhaust passage 12 by an unillustrated reducing agent injection device. The reducing agent tank 13 includes a heat insulating material, and the reducing agent stored in the reducing agent tank 13 is not affected by the heat of the exhaust passage 12 .

As shown in FIGS. 1 and 2, the reducing agent tank 13 is provided with a replenishing pipe 21 and a first replenishing unit 14, which are replenishment paths for replenishing the reducing agent tank 13 with the reducing agent.

The replenishing pipe 21 is a pipe through which the reducing agent can flow, and has a replenishing port 31 for replenishing the reducing agent at one end and is connected to the side portion (side surface) of the reducing agent tank 13 at the other end. That is, as shown in FIGS. 2 and 3, the replenishment pipe 21 includes a first replenishment pipe portion extending in the vertical direction of the vehicle 11 from the replenishment port 31, and a reducing agent tank bent from the first replenishment pipe portion. The first supply pipe portion is arranged on the side of the reducing agent tank 13, and the second supply pipe portion is arranged on the side of the reducing agent tank 13. connected to Therefore, the replenishing pipe 21 can smoothly circulate the reducing agent while being relatively compact in the vertical direction.

As shown in FIG. 3, the first replenishment unit 14 has a replenishment port 31 to which the reducing agent replenishment device 15 (see the two-dot chain line in FIG. 3) can be attached, and part of it (replenishment port 31) is a floor panel. It is attached to the floor panel 11 from below the vehicle so as to be positioned above the floor panel 11 by passing through an attachment hole 11 a formed in the body 11 .

By arranging the supply port 31 to protrude above the floor panel 11 in this manner, the user can easily access the supply port 31 from above the floor panel 11 (on the side of the vehicle interior space S1). Replenishment work of the reducing agent can be easily performed. The configuration and procedure for attaching the first replenishment unit 15 to the floor panel 11 will be described in detail later.

The first replenishment unit 14 is arranged from the center in the vehicle width direction toward one side in the vehicle width direction (see FIG. 1), and the replenishment port 31 is located on the center side in the vehicle width direction (the other side in the vehicle width direction). , and is slightly inclined toward the right side in FIG. 3 (see FIG. 3). As a result, the user can easily attach the reducing agent supply device 15 to the supply port 31 from a wide space on the central side in the vehicle width direction, and can easily perform the operation of supplying the reducing agent.

As shown in FIGS. 3 and 4D, the first replenishing unit 14 includes a drain receiving portion 32 for receiving reducing agent (drain) spilled from the replenishing port 31 and the reducing agent replenishing device 15 when replenishing the reducing agent. is provided. The drain receiving portion 32 is formed in a bucket shape (concave shape) corresponding to the mounting hole 11a. The side wall portion 32b has an inclined portion 32c that inclines in the diameter-expanding direction from the upper edge of the side wall portion 32b.

The bottom portion 32 a is provided with a drain hole 33 and a drain pipe 34 for discharging the reducing agent (drain) received by the drain receiver 32 . Since the user replenishes the reducing agent by attaching the reducing agent replenishing device 15 to the replenishing port 31 from a wide space on the vehicle width direction center side (the other side in the vehicle width direction), the drain hole 33 is located near the replenishing port 31. It is formed on the other side in the vehicle width direction of the replenishing port 31 , at a position where the reducing agent tends to spill out.
In addition, the drain pipe 34 is arranged so that its tip (the end open to the atmosphere) is positioned at a desired position where there is no other member below. Drainage is discharged without adhering to various members of the vehicle 1 .

As shown in FIG. 2, the reducing agent tank 13 is provided with a vent pipe 22 which is always open to the atmosphere to prevent overpressure and negative pressure in the reducing agent tank 13, a supply pipe 21, and the reducing agent tank 13. A breather pipe 23 is interposed between the first replenishment unit 14 and prevents spouting of the reducing agent from the replenishment port 31 . Therefore, the user can smoothly replenish the reducing agent from the replenishing port 31 to the reducing agent tank 13 .

In the vehicle 1 , the first supply unit 14 , the supply pipe 21 , the vent pipe 22 , the breather pipe 23 , and the drain pipe 34 are located on the side of the reducing agent tank 13 and are located in the exhaust passage 12 with respect to the reducing agent tank 13 . , that is, in the shadow of the reducing agent tank 13 with respect to the exhaust passage 12 .

In other words, the heat (radiation) emitted by the exhaust passage 12 is not directly applied to the first supply unit 14, the supply pipe 21, the vent pipe 22, the breather pipe 23, and the drain pipe 34, and The openings of the drain pipe 34 and the breather pipe 23 do not exist in the high-temperature atmosphere near the exhaust passage 12, but exist in the low-temperature atmosphere away from the exhaust passage 12 (hidden behind the reducing agent tank 13).

Therefore, when replenishing the reducing agent, the reducing agent flowing through the first replenishing unit 14, the replenishing pipe 21 and the vent pipe 22 is not affected by the heat (radiant heat) of the exhaust passage 12. The space in one replenishing unit 14 is not affected by exposure to a high-temperature atmosphere (heat of the exhaust passage 12) through the openings of the breather pipe 23 and the drain pipe 34.

4D and 5, the first replenishment unit 14 is provided with a fixing bracket 35 for fixing the first replenishment unit 14. As shown in FIG. The fixing bracket 35 is formed to cover the drain receiving portion 32 from the vehicle lower side while avoiding the supply pipe 21, the drain pipe 34, etc., and the guide portion B1 and the screw portion B2 of the bolt B, which will be described later, can be inserted therethrough. bolt holes 35a. The fixing bracket 35 may be fixed to the first replenishment unit 14 (drain receiving portion 32) with an adhesive or a screw (not shown). It may be fixed to the floor panel 11 (without using the fixing bracket 35).

As shown in FIGS. 1 and 2, the vehicle 1 is provided with a second supply unit 16 that functions as a cover for the supply port 31 that protrudes upward from the floor panel 11 .

As shown in FIG. 3, the second replenishment unit 16 includes a funnel-shaped cup member 41 attached in the vicinity (periphery) of the attachment hole 11a, and an upper opening 41a of the cup member 41 via a hinge member 42. It is roughly configured from a lid member 43 attached so as to be openable and closable.

The lower opening 41b of the cup member 41 is arranged corresponding to the mounting hole 11a and the drain receiving portion 32, and the reducing agent (drain) spilled from the replenishing port 31 and the reducing agent replenishing device 15 during replenishment of the reductant is , flows downward along the inner surface of the cup member 41, drops into the drain receiving portion 32 from the lower opening portion 41b, and is collected.

As shown in FIG. 4D, the cup member 41 is provided with a flange portion 41c protruding to the outer periphery in the vicinity of the lower opening portion 41b. 16) to the floor panel 11 is fixed (fixed).

The second supply unit 16 is provided with a plurality of (three in this embodiment) bolts B, and the floor panel 11 is formed with bolt holes 11b corresponding to the plurality of bolts B. . Therefore, when assembling the second supply unit 16 to the floor panel 11 from the upper side of the vehicle, the lower opening 41b of the cup member 41 is attached by inserting a plurality of bolts B through the plurality of bolt holes 11b. It is located at a position corresponding to the hole 11a (the same position as the mounting hole 11a).

4D, the cup member 41 is provided with a projecting portion 44 that projects downward from the inner peripheral surface of the lower opening portion 41b and engages with the side wall portion 32b of the drain receiving portion 32. As shown in FIG. The protrusions 44 are provided at a plurality of locations (for example, three locations) spaced apart in the circumferential direction of the lower opening 41b, and each of the plurality of protrusions 44 engages with the side wall portion 32b (in detail, The outer peripheral surface of the plurality of protrusions 44 is in close contact with the inner peripheral surface of the side wall portion 32b), so that the cup member 41 (second supply unit 16) and the drain receiving portion 32 (first supply unit 14) Positioning is performed.

That is, when assembling the second supply unit 16 and the first supply unit 14 to the floor panel 11, the second supply unit 16 is placed at a predetermined position from the vehicle upper side of the floor panel 11 with the bolt B, and then this second supply unit 16 is installed. The first replenishment unit 14 is assembled to the second replenishment unit 16 from the vehicle lower side so that the protrusion 44 and the side wall portion 32b are engaged with each other.

At this time, since the shapes and dimensions of the second supply unit 16 and the first supply unit 14 are in a predetermined relative relationship, the work of assembling the second supply unit 16 and the first supply unit 14 to the floor panel 11 is facilitated. It has become easy. Specifically, when the first replenishment unit 14 is assembled to the second replenishment unit 16 positioned at a predetermined position by the fixing bolt B as described above, the position of the first replenishment unit 14 is changed stepwise ( In this embodiment, the position is restricted to four stages), and the operator can assemble the first replenishing unit 14 without consciously performing fine position adjustments. The procedure for assembling the second supply unit 16 and the first supply unit 14 to the floor panel 11 will be detailed later.

As shown in FIG. 3, the hinge member 42 is provided at the end of the cup member 41 on one side in the vehicle width direction (the left side in FIG. 3), and the lid member 43 is provided at the center side in the vehicle width direction. The door is opened toward one side in the vehicle width direction (or the other side in the vehicle width direction, which is the right side in FIG. 3). 2, the lid member 43 is arranged along the vehicle rear end of the floor panel 11. As shown in FIG.

Therefore, when opening and closing the lid member 43 with respect to the cup member 41, the user can perform the opening and closing operation using the wide space on the center side in the vehicle width direction (without being hindered by side panels, etc., not shown). When replenishing the reducing agent from the replenishing port 31 by the reducing agent replenishing device 15, the wide space on the center side in the vehicle width direction is used (without being obstructed by a side panel or the like, not shown). Actions can be performed (see dashed-two dotted line in FIG. 3).

As shown in FIGS. 3 and 4D, a first seal member 45 is interposed between the floor panel 11 and the cup member 41 to seal the gap between the cup member 41 and the lid member 43. A second sealing member 46 is interposed therebetween to seal the gap. That is, a first sealing member 45 and a second sealing member 46 are arranged between the lid member 43 and the floor panel 11 with the cup member 41 interposed therebetween.

Therefore, when the lid member 43 is opened with respect to the cup member 41, the user can access the replenishment port 31 and replenish the reducing agent (see the two-dot chain line in FIG. 3). When the member 43 is closed with respect to the cup member 41, the space (replenishment space) S16 in the second replenishment unit 16 can be reliably isolated from the space in the vehicle interior (vehicle interior space) S1. The odor of the reducing agent in 13 and the reducing agent adhering to the replenishment port 31 can be kept in the replenishment space S16, and the odor can be prevented from entering the vehicle interior space S1 (see the solid line in FIG. 3). As a result, when the door is closed, the lid member 43 attached to the floor panel 11 via the cup member 41 can cover the supply port 31 arranged below the floor surface F of the passenger compartment, as shown in FIG. become.

Here, the drain receiving portion 32 and the drain hole 33 are provided facing the replenishment space S16 defined by the second replenishing unit 16 together with the replenishing port 31, and when the lid member 43 is closed, the drain receiving portion The odor of the reducing agent remaining in 32, drain hole 33, etc. is kept in replenishment space S16 and does not enter vehicle interior space S1.

A procedure for assembling the second replenishment unit and the first replenishment unit to the floor panel in the automobile according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 5. FIG.

First, the second supply unit 16 is placed on the floor panel 11, and the first supply unit 14 is placed on the floor panel 11 and the second supply unit 14 so that the supply port 31 is inserted through the mounting hole 11a and the lower opening 41b of the cup member 41. 2) Approach the replenishment unit 16 from the lower side of the vehicle, and engage the bolt hole 35a with the guide portion B1 of the bolt B (see FIG. 4A). As a result, the first replenishment unit 14 is in a movable state (first position restricted state) only within the range of the difference between the outer diameter of the guide portion B1 and the inner diameter of the bolt hole 35a.

At this time, since the first replenishment unit 14 is positioned to the side of the reducing agent tank 13 (see FIGS. 1 and 2), the operator must remove the bolt B projecting downward from the floor panel 11 and the first replenishment unit 14. While viewing the mounting surface (bolt hole 35a) of the unit 14, the above-described work (work for engaging the bolt hole 35a with the guide portion B1 of the bolt B) can be performed.

Also, since two bolts B out of the three bolts B are arranged on the vehicle rear side (see FIG. 5), the operator must install the two bolts B arranged on the vehicle rear side and the two bolt holes 35a. can be engaged while visually recognizing the two bolts B and the bolt hole 35a. can be combined.

Next, the operator moves the first replenishment unit 14 closer to the floor panel 11 and the second replenishment unit 16 (moves from the lower side of the vehicle toward the upper side of the vehicle) in the first position regulated state, The bolt hole 35a is engaged with the threaded portion B2 of the bolt B, which is larger in diameter than the guide portion B1 (see FIG. 4B). As a result, the first replenishment unit 14 becomes movable within a range of the difference between the outer diameter of the threaded portion B2 and the inner diameter of the bolt hole 35a (second position restricted state).

At this time, the inclined portion 32c of the drain receiving portion 32 overlaps the protrusion 44 in the vehicle vertical direction. It is positioned on the upper side of the vehicle with respect to the lower edge of the projecting portion 44 .

Note that the difference between the outer diameter of the threaded portion B2 and the inner diameter of the bolt hole 35a is smaller (shorter) than the horizontal distance between the overlapping protrusion 44 and the inclined portion 32c in the vertical direction of the vehicle. Even if the replenishment unit 14 moves horizontally in the second position regulated state, the protrusion 44 is never positioned radially outward of the inclined portion 32c, and the protrusion 44 is always positioned radially inward of the inclined portion 32c. To position. In other words, the operator does not need to be particularly careful about the horizontal position of the first replenishment unit 14 with respect to the second replenishment unit 16 in the second position regulation state, and the bolt hole 35a and the bolt B (the bolt hole 35a and the bolt B) do not have to be particularly careful. Engagement with the threaded portion B2) can be performed while watching only.

Next, the operator brings the first replenishment unit 14 closer to the floor panel 11 and the second replenishment unit 16 (further moves from the lower side of the vehicle toward the upper side of the vehicle) in the second position restricted state. , engage the side wall 32b with the protrusion 44 (see FIG. 4C). As a result, the first replenishment unit 14 is substantially positioned by the engagement of the plurality of protrusions 44 and the side wall portion 32b, and is movable only in the assembly direction (third position regulated state). Become.

At this time, since the inclined portion 32c is inclined from the upper end edge of the side wall portion 32b in the diameter-expanding direction, the first replenishment unit 14 moves upward in the vehicle so that the movable range in the horizontal direction extends to the inclined portion. By gradually narrowing according to the inclination angle of 32c, the second position regulation state is gradually transformed into the third position regulation state.

Then, the operator moves the first supply unit 14 closer to the floor panel 11 and the second supply unit 16 (further moves from the lower side of the vehicle toward the upper side of the vehicle) in the third position regulated state, The first supply unit 14 (the upper edge of the inclined portion 32c and the fixing bracket 35) is brought into contact with the floor panel 11, and the first supply unit 14 (the inclined portion 32c) is brought into close contact with the first seal 45 (FIG. 4D). reference).

At this time, the first replenishment unit 14 is brought into contact with the first seal member 45 in a substantially positioned state (third position regulated state) by the engagement of the plurality of protrusions 44 and the side wall portion 32b. , the lip portion 45a protruding toward the inclined portion 32c of the first seal member 45 abuts against the inclined portion 32c in a favorable manner, and the gap between the second replenishing unit 16 and the first replenishing unit 14 is maintained. A sufficient function of sealing the gap can be exhibited.

Finally, the operator screws the nut N onto the threaded portion B2 of the bolt B to fix the second supply unit 16 and the first supply unit 14 to the upper and lower surfaces of the floor panel 11 (see FIG. 4D).

As described above, the worker can easily assemble the second supply unit 16 and the first supply unit 14 to the floor panel 11 .

In this embodiment, the first replenishment unit 14 and the second replenishment unit 16 are fixed to the floor panel 11 by mechanical fastening means of bolts B and nuts N so as to sandwich the floor panel 11 in the vertical direction. is doing.

Of course, the present invention is not limited to the configuration of this embodiment, and the first supply unit 14 and the second supply unit 16 may be separately fixed to the floor panel 11, or other mechanical fasteners such as rivets may be used. You may make it fix by a fastening means.

In addition, in this embodiment, the first seal 45 is interposed between the floor panel 11 and the second supply unit 16 (cup member 41), and extends radially inward of the mounting hole 11a. It is also interposed between the first supply unit 14 and the second supply unit 16, and the first seal 45 seals between the floor panel 11 and the second supply unit 16 (cup member 41). and sealing between the first replenishment unit 14 and the second replenishment unit 16 .

Of course, the present invention is not limited to the configuration of this embodiment, and the first sealing member 45 is composed of a plurality of (for example, two) separate sealing members, i.e., the floor panel 11 and the second supply unit. 16 (cup member 41) and the gap between the first replenishment unit 14 and the second replenishment unit 16 may be sealed with separate sealing members.

In this embodiment, a part of the floor panel 11 is recessed from the floor surface F of the passenger compartment, and the lower end of the second supply unit 16 is recessed from the floor surface F of the floor panel 11. The upper end of the second replenishment unit 16 is positioned near the floor surface F. As shown in FIG.

Of course, the present invention is not limited to the configuration of this embodiment, and as shown in FIG. The vicinity of the upper end portion of the unit 16 may be attached to the floor panel 11 . Further, as shown in FIG. 7, a part of the floor panel 11 is recessed with respect to the floor surface F of the passenger compartment, and a part of the floor panel 11 is formed in a funnel shape. The portion may be substituted for the cup member 41 in this embodiment. 6 and 7, members having the same functions as those of the present embodiment are denoted by the same reference numerals.

1 vehicle 11 floor panel 11a mounting hole 11b in floor panel bolt hole 12 in floor panel exhaust system 13 reducing agent tank 14 first supply unit 15 reducing agent supply device 16 second supply unit 21 supply pipe 22 vent pipe 23 breather pipe 31 supply Port 32 drain receiving portion (reducing agent discharge means)
32a Bottom portion 32b of the drain receiving portion Side wall portion (position control means) of the drain receiving portion
32c Inclined part (position control means) in the drain receiving part
33 drain hole (reducing agent discharge means)
34 drain pipe (reducing agent discharge means)
35 Fixing bracket 35a Bolt hole in fixing bracket (position control means)
41 cup member (isolation means)
41a upper opening 41b in the cup member lower opening 41c in the cup member flange portion 42 in the cup member hinge member 43 lid member (separating means)
44 projection (position control means)
45 first sealing member (separating means)
46 Second sealing member (separating means)
B bolt (position control means)
Guide part (position control means) in B1 bolt
Threaded portion of B2 bolt (position control means)
N nut

Claims (4)

A vehicle equipped with an exhaust purification device that injects a reducing agent into the exhaust passage of the engine to purify the exhaust gas
A reducing agent inlet structure in
a reducing agent tank mounted below the floor panel of the vehicle and storing a reducing agent;
a replenishing pipe for replenishing the reducing agent to the reducing agent tank from a replenishing port provided at one end;
The supply pipe has a first supply pipe portion extending in the vertical direction of the vehicle from the supply port,
the supply port and The first supply pipe part isa rear end of the vehicle; andof the reducing agent tankrear of vehicleplaced in
A reducing agent inlet structure characterized by: The supply pipe is
a second replenishment pipe portion bent from the first replenishment pipe portion and disposed on the side of the reducing agent tank;
2. The reducing agent inlet structure according to claim 1, wherein the second supply pipe is connected to a side surface of the reducing agent tank. The supply port is covered with a lid member attached to the floor panel and arranged below the floor surface of the vehicle,
3. The reducing agent inlet structure according to claim 1, wherein a sealing member is arranged between the lid member and the floor panel. 4. The reducing agent inlet structure according to any one of claims 1 to 3, wherein the lid member is arranged along the vehicle rear end of the floor panel.

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