US20150114505A1 - Urea solution apparatus for vehicles - Google Patents

Urea solution apparatus for vehicles Download PDF

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Publication number
US20150114505A1
US20150114505A1 US14/334,356 US201414334356A US2015114505A1 US 20150114505 A1 US20150114505 A1 US 20150114505A1 US 201414334356 A US201414334356 A US 201414334356A US 2015114505 A1 US2015114505 A1 US 2015114505A1
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US
United States
Prior art keywords
urea solution
storage tank
vehicle
pipe
solution storage
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
US14/334,356
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English (en)
Inventor
Bu Yeol Ryu
Dong Myoung RYOO
Pil Seon Choi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hyundai Motor Co
Original Assignee
Hyundai Motor Co
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 Hyundai Motor Co filed Critical Hyundai Motor Co
Assigned to HYUNDAI MOTOR COMPANY reassignment HYUNDAI MOTOR COMPANY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHOI, PIL SEON, RYU, BU YEOL, RYOO, DONG MYOUNG
Publication of US20150114505A1 publication Critical patent/US20150114505A1/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2066—Selective catalytic reduction [SCR]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/206—Adding periodically or continuously substances to exhaust gases for promoting purification, e.g. catalytic material in liquid form, NOx reducing agents
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
    • F01N2610/1406—Storage means for substances, e.g. tanks or reservoirs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
    • F01N2610/1406—Storage means for substances, e.g. tanks or reservoirs
    • F01N2610/1413—Inlet and filling arrangements therefore
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
    • F01N2610/1433—Pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
    • F01N2610/1486—Means to prevent the substance from freezing
    • 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
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/6851—With casing, support, protector or static constructional installations
    • Y10T137/6855—Vehicle

Definitions

  • 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.
  • the amount of nitrogen oxides (NOx) in the exhaust gas increases in proportion to an increase in the combustion temperature of an engine.
  • 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.
  • a urea SCR Selective Catalytic Reduction
  • 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.
  • 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 2 O) and diatomic nitrogen (N 2 ), thereby reducing the amount of nitrogen oxides in the exhaust gas.
  • NOx nitrogen oxides
  • N 2 diatomic nitrogen
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the urea solution storage tank may be installed in the rear part of the car body based on a rear wheel suspension.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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,
  • the urea solution apparatus for vehicles may further include, a urea solution pump mounted to the lower surface of the urea solution storage tank.
  • 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.
  • 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.
  • the urea solution injection nozzle may be installed at a location next to the fuel inlet hole on a fuel filler housing.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • FIG. 3 is a sectional view taken along line I-I of FIG. 1 .
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the urea solution apparatus for vehicles 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.
  • 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 .
  • a spare tire well 55 is provided in the lower part of the car body by protruding downward, as shown in FIG. 1 .
  • 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 .
  • an RV Recreational Vehicle
  • SUV Sport Utility Vehicle
  • 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.
  • the urea solution storage tank 10 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 .
  • the urea solution storage tank 10 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 .
  • the urea solution storage tank 10 may be installed at a location in back of the fuel inlet hole 51 .
  • the urea solution storage tank 10 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 .
  • the urea solution storage tank 10 may be installed at a location in back of the fuel inlet hole 51 .
  • the urea solution storage tank 10 is installed in a stably fixed state in which the tank 10 is combined with the rear side member 58 .
  • the urea solution storage tank 10 may be combined with the rear side member 58 at at least two joints.
  • 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.
  • the urea solution apparatus may further include a urea solution pump 30 that is mounted to the lower surface of the urea solution storage tank 10 .
  • 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 .
  • 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 .
  • 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 .
  • 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 .
  • the pump cover 31 may be made of a plastic material.
  • 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 .
  • the urea solution injection nozzle 21 is installed at a location next to the fuel inlet hole 51 on the fuel filler housing 59 .
  • 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 .
  • 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 .
  • the space defined between the rear side member 58 and the rear side seal 57 is a surplus space
  • 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 .
  • 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 .
  • 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 .
  • 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 .
  • 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.
  • threads 21 a and 23 a 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 21 a and 23 a . Due to the threads 21 a and 23 a , 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 .
  • 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.
  • 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 .
  • the present invention can use a large capacity urea solution storage tank in the car body
  • 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 .
  • 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.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
US14/334,356 2013-10-24 2014-07-17 Urea solution apparatus for vehicles Abandoned US20150114505A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20130127312A KR101509950B1 (ko) 2013-10-24 2013-10-24 차량용 요소수장치
KR10-2013-0127312 2013-10-24

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US20150114505A1 true US20150114505A1 (en) 2015-04-30

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US (1) US20150114505A1 (de)
KR (1) KR101509950B1 (de)
CN (1) CN104564260A (de)
DE (1) DE102014110880A1 (de)

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US20150299983A1 (en) * 2014-04-22 2015-10-22 Hitachi Construction Machinery Co., Ltd. Construction Machine
JP2017094887A (ja) * 2015-11-24 2017-06-01 三菱自動車工業株式会社 タンク配置構造
JP2018002039A (ja) * 2016-07-06 2018-01-11 ボッシュ株式会社 車両の還元剤供給装置のレイアウト構造
US20180111820A1 (en) * 2016-10-21 2018-04-26 Hyundai Motor Company Valve apparatus of urea tank for vehicle
CN111271160A (zh) * 2020-01-21 2020-06-12 一汽解放汽车有限公司 一种新型锁芯横置的耐压尿素罐盖总成
WO2023188894A1 (ja) * 2022-03-31 2023-10-05 三菱自動車工業株式会社 車両

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JP6529845B2 (ja) * 2015-07-15 2019-06-12 住友建機株式会社 ショベル
JP6772451B2 (ja) * 2015-11-24 2020-10-21 三菱自動車工業株式会社 車体構造
JP6848536B2 (ja) * 2017-03-03 2021-03-24 三菱自動車工業株式会社 車体構造
CN109681301B (zh) * 2017-10-18 2021-07-23 现代自动车株式会社 尿素溶液加注管装置
CN117267498B (zh) * 2023-11-16 2024-02-13 中国航发沈阳黎明航空发动机有限责任公司 一种与平管嘴接头连接的对开装配式组合外加螺母

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