U.S. patent application number 14/334356 was filed with the patent office on 2015-04-30 for urea solution apparatus for vehicles.
This patent application is currently assigned to Hyundai Motor Company. The applicant listed for this patent is Hyundai Motor Company. Invention is credited to Pil Seon Choi, Dong Myoung Ryoo, Bu Yeol Ryu.
Application Number | 20150114505 14/334356 |
Document ID | / |
Family ID | 52811828 |
Filed Date | 2015-04-30 |
United States Patent
Application |
20150114505 |
Kind Code |
A1 |
Ryu; Bu Yeol ; et
al. |
April 30, 2015 |
UREA SOLUTION APPARATUS FOR VEHICLES
Abstract
A urea solution apparatus for a vehicle may include a urea
solution storage tank installed in a side of a lower part in a rear
part of a car body, and a urea solution pipe configured to inject a
urea solution into the urea solution storage tank, wherein the urea
solution pipe is connected to the urea solution storage tank in
such a way that a urea solution injection nozzle of the urea
solution pipe is located in a space in which a fuel inlet hole is
provided.
Inventors: |
Ryu; Bu Yeol; (Hwaseong-si,
KR) ; Ryoo; Dong Myoung; (Yongin-si, KR) ;
Choi; Pil Seon; (Anyang-si, KR) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Hyundai Motor Company |
Seoul |
|
KR |
|
|
Assignee: |
Hyundai Motor Company
Seoul
KR
|
Family ID: |
52811828 |
Appl. No.: |
14/334356 |
Filed: |
July 17, 2014 |
Current U.S.
Class: |
137/899 |
Current CPC
Class: |
F01N 2610/1413 20130101;
F01N 3/206 20130101; Y02T 10/12 20130101; F01N 2610/1406 20130101;
F01N 2610/1433 20130101; Y02A 50/2325 20180101; Y02T 10/24
20130101; F01N 3/2066 20130101; F01N 3/28 20130101; F01N 2610/02
20130101; F01N 2610/1486 20130101; Y02A 50/20 20180101; Y10T
137/6855 20150401 |
Class at
Publication: |
137/899 |
International
Class: |
F01N 3/20 20060101
F01N003/20; F01N 3/28 20060101 F01N003/28 |
Foreign Application Data
Date |
Code |
Application Number |
Oct 24, 2013 |
KR |
10-2013-0127312 |
Claims
1. A urea solution apparatus for a vehicle, comprising: a urea
solution storage tank installed in a side of a lower part in a rear
part of a car body; and a urea solution pipe configured to inject a
urea solution into the urea solution storage tank, wherein the urea
solution pipe is connected to the urea solution storage tank in
such a way that a urea solution injection nozzle of the urea
solution pipe is located in a space in which a fuel inlet hole is
provided.
2. The urea solution apparatus for the vehicle as set forth in
claim 1, wherein the urea solution storage tank is installed in the
rear part of the car body based on a rear wheel suspension.
3. The urea solution apparatus for the vehicle as set forth in
claim 1, wherein the urea solution storage tank is installed in the
rear part of the car body based on a rear wheel suspension at a
location next to a spare tire well or at a location next to a spare
tire.
4. The urea solution apparatus for the vehicle as set forth in
claim 3, wherein the urea solution storage tank is installed at a
location in back of the fuel inlet hole so as to minimize a length
of a path of the urea solution pipe.
5. The urea solution apparatus for the vehicle as set forth in
claim 1, wherein the urea solution storage tank is installed in a
stably fixed state in which the urea solution storage tank is
combined with a rear side member.
6. The urea solution apparatus for the vehicle as set forth in
claim 5, wherein the urea solution storage tank is combined with
the rear side member at at least two joints so as to install the
urea solution storage tank in the stably fixed state.
7. The urea solution apparatus for the vehicle as set forth in
claim 3, wherein the urea solution storage tank is installed at a
height above a ground surface in which a location of a lower
surface of the urea solution storage tank is higher than a lower
surface of the spare tire well or than a lower surface of the spare
tire, thereby preventing the lower surface of the urea solution
storage tank from coming into contact with a road surface,
8. The urea solution apparatus for the vehicle as set forth in
claim 3, further comprising: a urea solution pump mounted to a
lower surface of the urea solution storage tank.
9. The urea solution apparatus for the vehicle as set forth in
claim 8, wherein the urea solution pump is installed at a height
above a ground surface in which a location of a lower surface of
the urea solution pump is higher than a lower surface of the spare
tire well or than a lower surface of the spare tire, thereby
preventing the lower surface of the urea solution pump from coming
into contact with a road surface.
10. The urea solution apparatus for the vehicle as set forth in
claim 8, wherein the urea solution storage tank is provided with a
pump cover, the pump cover combined with the urea solution storage
tank such that the pump cover covers and protects the urea solution
pump.
11. The urea solution apparatus for the vehicle as set forth in
claim 1, wherein the urea solution injection nozzle is installed at
a location next to the fuel inlet hole on a fuel filler
housing.
12. The urea solution apparatus for the vehicle as set forth in
claim 1, wherein a urea solution pipe nipple and a leveling pipe
nipple which are combined with the urea solution storage tank are
installed in a space between a rear side member and a rear side
seal, thereby securing the space for installing both the urea
solution pipe nipple and the leveling pipe nipple and minimizing a
length of a path of each of the urea solution pipe and a leveling
pipe.
13. The urea solution apparatus for the vehicle as set forth in
claim 1, wherein the urea solution pipe and a leveling pipe are
connected to the urea solution storage tank after passing through a
space in back of a rear wheel housing so as to avoid an
interference of both the urea solution pipe and the leveling pipe
with peripheral parts and to minimize a length of a path of each of
the urea solution pipe and the leveling pipe.
14. The urea solution apparatus for the vehicle as set forth in
claim 12, wherein the urea solution pipe nipple and the leveling
pipe nipple are installed to be placed on an uppermost surface of
the urea solution storage tank so as to secure a safe injection of
the urea solution when the urea solution contained in the urea
solution storage tank is in a frozen state.
15. The urea solution apparatus for the vehicle as set forth in
claim 1, wherein the urea solution injection nozzle and a urea
solution filler cap are detachably engaged with each other by a
screw type engagement, thereby realizing an efficient injection of
the urea solution.
Description
CROSS-REFERENCE(S) TO RELATED APPLICATION
[0001] The present application claims priority to Korean Patent
Application No. 10-2013-0127312 filed on Oct. 24, 2013, the entire
contents of which is incorporated herein for all purposes by this
reference.
BACKGROUND OF THE INVENTION
[0002] 1. Field of the Invention
[0003] The present invention relates, in general, to a urea
solution apparatus for vehicles and, more particularly, to a
technology of a urea solution apparatus for vehicles, in which a
urea solution storage tank is installed in an outside part of a car
body and a urea solution injection nozzle is provided at a location
next to a fuel inlet hole.
[0004] 2. Description of Related Art
[0005] Generally, when a vehicle engine is operated, exhaust gas is
generated. Particularly, when a diesel engine is operated, exhaust
gas impregnated with nitrogen oxides (NOx) is exhausted to the
atmosphere.
[0006] Here, the amount of nitrogen oxides (NOx) in the exhaust gas
increases in proportion to an increase in the combustion
temperature of an engine. When exhaust gas containing nitrogen
oxides is discharged to the atmosphere, the nitrogen oxides cause
serious air pollution. Accordingly, to reduce the amount of
nitrogen oxides in exhaust gas, a technology in which the
combustion temperature of an engine is controlled or the nitrogen
oxides in the exhaust gas are reduced using a catalyst installed in
an exhaust system has been used in the related art.
[0007] To purify exhaust gas of a vehicle by reducing nitrogen
oxides, a urea SCR (Selective Catalytic Reduction) system is used.
In the urea SCR system, a urea solution is precisely sprayed into
an exhaust pipe using a variety of sensors, such as a nitrogen
oxide sensor, and a urea solution spray control device, so the
sprayed urea solution is thermally decomposed by heat of exhaust
gas, thereby being converted into ammonia.
[0008] The ammonia as a reducing agent is added to a stream of
exhaust gas and is absorbed onto an SCR catalyst, so the ammonia
reacts with nitrogen oxides (NOx) and converts the nitrogen oxides
into water (H.sub.2O) and diatomic nitrogen (N.sub.2), thereby
reducing the amount of nitrogen oxides in the exhaust gas.
[0009] In a related art urea SCR system, a urea solution storage
tank for storing a urea solution therein is typically installed in
a trunk room at a location next to a spare tire well or at a
location next to a trunk trim, in which the trunk room forms a part
of the internal space of a car body. Accordingly, the related art
urea SCR system is problematic in that the urea solution storage
tank takes up the limited internal space of the car body.
[0010] Another problem of the related art urea SCR system resides
in that a large capacity urea solution storage tank may not be
installed in the limited internal space of the car body, so it is
required to frequently charge the urea solution in the urea
solution storage tank and this makes use thereof inconvenient.
[0011] Further, the internal space of the car body may not be
efficiently ventilated, so passengers may feel discomfort due to
the odor of the urea solution in the related art urea SCR
system.
[0012] Further, in the related art urea SCR system, a urea solution
injection nozzle through which the urea solution is injected into
the urea solution storage tank is provided at a location remote
from a fuel inlet hole, so it is required to secure a specified
space for installing the urea solution injection nozzle.
[0013] The information disclosed in this Background of the
Invention section is only for enhancement of understanding of the
general background of the invention and should not be taken as an
acknowledgement or any form of suggestion that this information
forms the prior art already known to a person skilled in the
art.
BRIEF SUMMARY
[0014] Various aspects of the present invention are directed to
providing a urea solution apparatus for vehicles, in which a urea
solution storage tank is installed in an outside part of the rear
part of a car body, so the present invention prevents the urea
solution storage tank from occupying the limited internal space of
the car body, thereby enlarging a usable part of the limited
internal space of the car body, and, particularly, allows a large
capacity urea solution storage tank to be used in the car body,
thereby allowing a user to charge the urea solution in the urea
solution storage tank less frequently thus making use more
convenient, and prevents the odor of the urea solution from
infiltrating into the interior space of the car body, thereby
increasing the marketability of a vehicle.
[0015] Further, the present invention is intended to propose a urea
solution apparatus for vehicles, which is installed in a car body
in such a way that a urea solution injection nozzle is provided in
a space, in which a fuel inlet hole is also provided, at a location
next to the fuel inlet hole, so it is not required to secure a
separate space for installing the urea solution injection nozzle,
thereby realizing a reduction in the manufacturing cost of the urea
solution apparatus.
[0016] In order to achieve the above objects, according to one
aspect of the present invention, there is provided a urea solution
apparatus for vehicles, including, a urea solution storage tank
installed in a side of a lower part of a rear part of a car body, a
urea solution pipe that functions to inject a urea solution into
the urea solution storage tank, the urea solution pipe is connected
to the urea solution storage tank in such a way that a urea
solution injection nozzle is located in a space in which a fuel
inlet hole is provided.
[0017] The urea solution storage tank may be installed in the rear
part of the car body based on a rear wheel suspension.
[0018] The urea solution storage tank may be installed in the rear
part of the car body based on a rear wheel suspension at a location
next to a spare tire well or at a location next to a spare
tire.
[0019] The urea solution storage tank may be installed at a
location in back of the fuel inlet hole so as to minimize the
length of the path of the urea solution pipe.
[0020] The urea solution storage tank may be installed in a stably
fixed state in which the urea solution storage tank is combined
with a rear side member.
[0021] The urea solution storage tank may be combined with the rear
side member at at least two joints so as to install the urea
solution storage tank in the stably fixed state.
[0022] The urea solution storage tank may be installed at a height
above the ground surface in which the location of the lower surface
of the urea solution storage tank is higher than the lower surface
of the spare tire well or than the lower surface of the spare tire,
thereby preventing the lower surface of the urea solution storage
tank from coming into contact with a road surface,
[0023] The urea solution apparatus for vehicles may further
include, a urea solution pump mounted to the lower surface of the
urea solution storage tank.
[0024] The urea solution pump may be installed at a height above
the ground surface in which the location of the lower surface of
the urea solution pump is higher than the lower surface of the
spare tire well or than the lower surface of the spare tire,
thereby preventing the lower surface of the urea solution pump from
coming into contact with a road surface.
[0025] The urea solution storage tank may be provided with a pump
cover, the pump cover combined with the urea solution storage tank
such that the pump cover covers and protects the urea solution
pump.
[0026] The urea solution injection nozzle may be installed at a
location next to the fuel inlet hole on a fuel filler housing.
[0027] Both a urea solution pipe nipple and a leveling pipe nipple
which are combined with the urea solution storage tank may be
installed in a space between a rear side member and a rear side
seal, thereby securing the space for installing both the urea
solution pipe nipple and the leveling pipe nipple and minimizing
the length of the path of each of the urea solution pipe and a
leveling pipe.
[0028] Both the urea solution pipe and a leveling pipe may be
connected to the urea solution storage tank after passing through a
space in back of a rear wheel housing so as to avoid an
interference of both the urea solution pipe and the leveling pipe
with peripheral parts and to minimize the length of the path of
each of the urea solution pipe and the leveling pipe.
[0029] Both the urea solution pipe nipple and the leveling pipe
nipple may be installed to be placed on the uppermost surface of
the urea solution storage tank so as to secure a safe injection of
the urea solution when the urea solution contained in the urea
solution storage tank is in a frozen state.
[0030] Both the urea solution injection nozzle and a urea solution
filler cap may be detachably engaged with each other by a screw
type engagement, thereby realizing an efficient injection of the
urea solution.
[0031] As described above, the present invention is advantageous in
that, due to the structure of the urea solution apparatus in which
the urea solution storage tank is installed in an outside part of a
car body and the urea solution injection nozzle is provided in the
fuel filler housing having the fuel inlet hole thereon, the present
invention can enlarge the usable part of the limited internal space
of the car body, thereby allowing a user to efficiently use the
limited internal space of the car body, and can use a large
capacity urea solution storage tank and can minimize the length of
the path of the urea solution pipe, thereby reducing the
manufacturing cost and weight of the urea solution apparatus.
[0032] The methods and apparatuses of the present invention have
other features and advantages which will be apparent from or are
set forth in more detail in the accompanying drawings, which are
incorporated herein, and the following Detailed Description, which
together serve to explain certain principles of the present
invention.
BRIEF DESCRIPTION OF THE DRAWINGS
[0033] FIG. 1 is a bottom view of a vehicle provided with a spare
tire in a trunk room, in which a urea solution storage tank
according to an exemplary embodiment of the present invention is
installed at a location next to a spare tire well.
[0034] FIG. 2 is a bottom view of a vehicle provided with a spare
tire at a location below the lower surface of a car body, in which
the urea solution storage tank according to an exemplary embodiment
of the present invention is installed at a location next to the
spare tire.
[0035] FIG. 3 is a sectional view taken along line I-I of FIG.
1.
[0036] FIG. 4 is a view illustrating a structure for installing the
urea solution storage tank, a urea solution pipe and a urea
solution injection nozzle according to an exemplary embodiment of
the present invention.
[0037] FIG. 5 is a view illustrating a structure for installing the
urea solution storage tank, a urea solution pipe and a urea
solution injection nozzle according to an exemplary embodiment of
the present invention.
[0038] FIG. 6 is a view illustrating a structure for installing the
urea solution storage tank, a urea solution pipe and a urea
solution injection nozzle according to an exemplary embodiment of
the present invention.
[0039] FIG. 7 is a view illustrating a structure for installing the
urea solution storage tank, a urea solution pipe and a urea
solution injection nozzle according to an exemplary embodiment of
the present invention.
[0040] It should be understood that the appended drawings are not
necessarily to scale, presenting a somewhat simplified
representation of various features illustrative of the basic
principles of the invention. The specific design features of the
present invention as disclosed herein, including, for example,
specific dimensions, orientations, locations, and shapes will be
determined in part by the particular intended application and use
environment.
[0041] In the figures, reference numbers refer to the same or
equivalent parts of the present invention throughout the several
figures of the drawing.
DETAILED DESCRIPTION
[0042] Reference will now be made in detail to various embodiments
of the present invention(s), examples of which are illustrated in
the accompanying drawings and described below. While the
invention(s) will be described in conjunction with exemplary
embodiments, it will be understood that the present description is
not intended to limit the invention(s) to those exemplary
embodiments. On the contrary, the invention(s) is/are intended to
cover not only the exemplary embodiments, but also various
alternatives, modifications, equivalents and other embodiments,
which may be included within the spirit and scope of the invention
as defined by the appended claims.
[0043] Hereinbelow, a urea solution apparatus for vehicles
according to an exemplary embodiment of the present invention will
be described in detail with reference to the accompanying
drawings.
[0044] The present invention relates to a urea solution apparatus
which is installed in a vehicle having a diesel engine and
functions to purify exhaust gas by reducing nitrogen oxides
impregnated in the exhaust gas, and in which a urea solution
storage tank is installed in an outside part of a car body, thereby
enlarging the usable part of the limited internal space of the car
body and allowing a user to efficiently use the limited internal
space of the car body.
[0045] As shown in FIGS. 1 to 7, the urea solution apparatus for
vehicles according to an exemplary embodiment of the present
invention includes a urea solution storage tank 10 that is
installed in a side of a lower part of the rear part of a car body,
and a urea solution pipe 20 that functions to inject a urea
solution into the urea solution storage tank 10, and is connected
to the urea solution storage tank 10 in such a way that a urea
solution injection nozzle 21 is located in a space in which a fuel
inlet hole 51 is provided.
[0046] A fuel pipe 52 extends forward in the car body from the fuel
inlet hole 51 to a fuel tank 53 that is placed in front of the urea
solution storage tank 10.
[0047] Described in detail, in a passenger car having a trunk room
and a space defined in the trunk room so as to hold a spare tire, a
spare tire well 55 is provided in the lower part of the car body by
protruding downward, as shown in FIG. 1. In a vehicle having the
spare tire well 55, the urea solution storage tank 10 according to
an exemplary embodiment of the present invention is installed in a
rear part of the car body based on a rear wheel suspension 54 at a
location next to the spare tire well 55.
[0048] In an RV (Recreational Vehicle) or an SUV (Sport Utility
Vehicle), in which a luggage room instead of the trunk room for
loading of freight is provided at a location in back of a rear
seat, the spare tire is installed at a location below the lower
part of the car body.
[0049] In a vehicle in which the spare tire is installed at a
location below the lower part of the car body as described above,
the urea solution storage tank 10 according to an exemplary
embodiment of the present invention is installed in the rear part
of the car body based on the rear wheel suspension 54 at a location
next to the spare tire 56, as shown in FIG. 2.
[0050] In other words, the urea solution storage tank 10 according
to an exemplary embodiment of the present invention may be
installed in a space that is defined between the spare tire well 55
and the rear side seal 57 or between the spare tire 56 and the rear
side seal 57, so the present invention is advantageous in that it
can efficiently use a surplus space of the outside part of the car
body without securing a separate space for installing the urea
solution storage tank 10.
[0051] Further, to minimize the length of the path of the urea
solution pipe 20, the urea solution storage tank 10 according to an
exemplary embodiment of the present invention may be installed at a
location in back of the fuel inlet hole 51.
[0052] When the urea solution storage tank 10 is installed at a
location in front of the fuel inlet hole 51 or at a location on the
same vertical line as of the fuel inlet hole 51, it is required to
arrange the urea solution pipe 20 in such a way that the pipe 20
can avoid the fuel pipe 52. The arrangement of the urea solution
pipe 20 in which the urea solution pipe 20 is arranged to avoid the
fuel pipe 52 is problematic in that it increases the length of the
path of the urea solution pipe 20. To solve the problem of
increasing the length of the path of the urea solution pipe 20, the
urea solution storage tank 10 according to an exemplary embodiment
of the present invention may be installed at a location in back of
the fuel inlet hole 51.
[0053] Further, the urea solution storage tank 10 according to an
exemplary embodiment of the present invention is installed in a
stably fixed state in which the tank 10 is combined with the rear
side member 58. To install the urea solution storage tank 10 in the
stably fixed state, the urea solution storage tank 10 may be
combined with the rear side member 58 at at least two joints.
[0054] To prevent the lower surface of the urea solution storage
tank 10 from coming into contact with a road surface, the urea
solution storage tank 10 is installed at a height above the ground
surface in which the location of the lower surface of the tank 10
is higher than the lower surface of the spare tire well 55 or than
the lower surface of the spare tire 56, thereby avoiding a damage
or a breakage of the urea solution storage tank 10 caused by
contact with the ground surface.
[0055] The urea solution apparatus according to an exemplary
embodiment of the present invention may further include a urea
solution pump 30 that is mounted to the lower surface of the urea
solution storage tank 10.
[0056] The urea solution pump 30 pumps the urea solution contained
in the urea solution storage tank 10 and supplies the urea solution
to the urea solution injection nozzle 21. Here, the urea solution
pump 30 is mounted to the lower surface of the urea solution
storage tank 10, so it is not required to secure a separate space
for installing the urea solution pump 30.
[0057] Further, to prevent the lower surface of the urea solution
pump 30 from coming into contact with a road surface, the lower
surface of the urea solution pump 30 is installed at a height above
the ground surface in which the location of the lower surface of
the pump 30 is higher than the lower surface of the spare tire well
55 or than the lower surface of the spare tire 56.
[0058] Further, a pump cover 31 is combined with the urea solution
storage tank 10, and covers the urea solution pump 30, thereby
protecting the urea solution pump 30. To reduce the weight of the
pump cover 31, the pump cover 31 may be made of a plastic
material.
[0059] A fuel filler housing 59 is provided on a side surface of
the rear part of the car body, and the fuel inlet hole 51 is
mounted to the fuel filler housing 59. Here, according to an
exemplary embodiment of the present invention, the urea solution
injection nozzle 21 is installed at a location next to the fuel
inlet hole 51 on the fuel filler housing 59.
[0060] In other words, the urea solution injection nozzle 21 of the
present invention is mounted to the fuel filler housing 59 in which
the fuel inlet hole 51 is also mounted. Due to the above-mentioned
structure of the present invention, it is not required to secure a
separate space for installing the urea solution injection nozzle
21.
[0061] Further, both a urea solution pipe nipple 22 and a leveling
pipe nipple 41 which are combined with the urea solution storage
tank 10 are installed in a space between the rear side member 58
and the rear side seal 57.
[0062] Here, the space defined between the rear side member 58 and
the rear side seal 57 is a surplus space, and the urea solution
storage tank 10 is installed in such a way that both the urea
solution pipe nipple 22 and the leveling pipe nipple 41 are located
in the surplus space. Accordingly, the present invention is
advantageous in that the urea solution apparatus of this invention
can efficiently use the surplus space of the outside part of the
car body without securing a separate space for installing both the
urea solution pipe nipple 22 and the leveling pipe nipple 41.
[0063] Further, when both the urea solution pipe nipple 22 and the
leveling pipe nipple 41 are mounted to the urea solution storage
tank 10 such that the nipples 22 and 41 are located in the space
between the rear side member 58 and the rear side seal 57, the
distance between the urea solution injection nozzle 21 and the urea
solution pipe nipple 22 can be minimized, and this minimizes both
the length of the path of the urea solution pipe 20 and the length
of the path of a leveling pipe 40.
[0064] Further, to avoid an interference of both the urea solution
pipe 20 and the leveling pipe 40 with peripheral parts and to
minimize the length of the path of each of the urea solution pipe
20 and the leveling pipe 40, both the urea solution pipe 20 and the
leveling pipe 40 may be connected to the urea solution storage tank
10 after passing through a space in back of a rear wheel housing
61.
[0065] Further, to secure a safe injection of the urea solution
when the urea solution contained in the urea solution storage tank
10 is in a frozen state, both the urea solution pipe nipple 22 and
the leveling pipe nipple 41 may be installed to be placed on the
uppermost surface of the urea solution storage tank 10.
[0066] Further, to realize an efficient injection of the urea
solution, the urea solution injection nozzle 21 and a urea solution
filler cap 23 may be detachably engaged with each other by a screw
type engagement.
[0067] In other words, threads 21a and 23a are formed on the outer
circumferential surface of the urea solution injection nozzle 21
and on the inner circumferential surface of the urea solution
filler cap 23, respectively, so the urea solution injection nozzle
21 can be detachably engaged with the urea solution filler cap 23
by the threads 21a and 23a. Due to the threads 21a and 23a, the
present invention can increase the locking force of the urea
solution filler cap 23 relative to the urea solution injection
nozzle 21, and can allow a user to easily tighten or remove the
urea solution filler cap 23 to or from the urea solution injection
nozzle 21.
[0068] As described above, in the exemplary embodiments of the
present invention, the urea solution storage tank 10 is installed
in the outside part of the car body, so the present invention
prevents the urea solution storage tank 10 from occupying the
limited internal space of the car body, thereby enlarging the
usable part of the limited internal space of the car body and
allowing a user to efficiently use the limited internal space of
the car body, and prevents the odor of the urea solution from
infiltrating into the interior space of the car body, thereby
providing a pleasant atmosphere for passengers and increasing the
marketability of the vehicle.
[0069] Further, in an exemplary embodiment of the present
invention, the urea solution storage tank 10 is installed in a
surplus space between the spare tire well 55 and the rear side seal
57 or in a surplus space between the spare tire 56 and the rear
side seal 57, so the present invention is advantageous in that it
can efficiently use a surplus space of the outside part of the car
body without securing a separate space for installing the urea
solution storage tank 10. Particularly, the present invention can
use a large capacity urea solution storage tank in the car body
[0070] Further, in an exemplary embodiment of the present
invention, the urea solution injection nozzle 21 is installed on
the fuel filler housing 59 in which the fuel inlet hole 51 is also
installed, so it is not required to secure a separate space for
installing the urea solution injection nozzle 21. Particularly, the
present invention can minimize the length of the path of the urea
solution pipe 20, thereby reducing the manufacturing cost and
weight of the urea solution apparatus.
[0071] For convenience in explanation and accurate definition in
the appended claims, the terms "upper", "lower", "inner" and
"outer" are used to describe features of the exemplary embodiments
with reference to the positions of such features as displayed in
the figures.
[0072] The foregoing descriptions of specific exemplary embodiments
of the present invention have been presented for purposes of
illustration and description. They are not intended to be
exhaustive or to limit the invention to the precise forms
disclosed, and obviously many modifications and variations are
possible in light of the above teachings. The exemplary embodiments
were chosen and described in order to explain certain principles of
the invention and their practical application, to thereby enable
others skilled in the art to make and utilize various exemplary
embodiments of the present invention, as well as various
alternatives and modifications thereof. It is intended that the
scope of the invention be defined by the Claims appended hereto and
their equivalents.
* * * * *