EP3153630A1 - Construction vehicle - Google Patents
Construction vehicle Download PDFInfo
- Publication number
- EP3153630A1 EP3153630A1 EP14894794.8A EP14894794A EP3153630A1 EP 3153630 A1 EP3153630 A1 EP 3153630A1 EP 14894794 A EP14894794 A EP 14894794A EP 3153630 A1 EP3153630 A1 EP 3153630A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- exhaust gas
- treatment apparatus
- gas treatment
- engine
- bracket
- 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.)
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Classifications
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- 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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/08—Superstructures; Supports for superstructures
- E02F9/0858—Arrangement of component parts installed on superstructures not otherwise provided for, e.g. electric components, fenders, air-conditioning units
- E02F9/0866—Engine compartment, e.g. heat exchangers, exhaust filters, cooling devices, silencers, mufflers, position of hydraulic pumps in the engine compartment
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- 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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
-
- 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
-
- 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
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
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- 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
- F01N3/103—Oxidation catalysts for HC and CO only
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- 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]
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- 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
- F01N3/2892—Exhaust flow directors or the like, e.g. upstream of catalytic device
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/08—Superstructures; Supports for superstructures
- E02F9/0808—Improving mounting or assembling, e.g. frame elements, disposition of all the components on the superstructures
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/08—Superstructures; Supports for superstructures
- E02F9/0858—Arrangement of component parts installed on superstructures not otherwise provided for, e.g. electric components, fenders, air-conditioning units
- E02F9/0883—Tanks, e.g. oil tank, urea tank, fuel tank
-
- 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
- F01N2250/00—Combinations of different methods of purification
- F01N2250/02—Combinations of different methods of purification filtering and catalytic conversion
-
- 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
- F01N2590/00—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
- F01N2590/08—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for heavy duty applications, e.g. trucks, buses, tractors, locomotives
Definitions
- the present invention relates to a construction vehicle provided with an exhaust gas treatment apparatus for reducing the air pollution gases generated in the diesel engine.
- the diesel engine used for the construction vehicle generates the exhaust gas, particularly, due to the incomplete combustion, the exhaust gas with carbon monoxide or hydrocarbon of the relatively less amount and with nitrogen oxide of the relatively more amount.
- the diesel engine is provided with the exhaust gas treatment apparatus for purifying the exhaust gas, which comprises the devices such as DOC (Diesel Oxidation Catalyst) which converts carbon monoxide or hydrocarbon into carbon dioxide or water, DPF (Diesel Particulate Filter) which collects the particulate matters like dust to be burnt off, and SCR (Selective Catalytic Reduction) which converts nitrogen oxide to into nitrogen or water, etc.
- DOC Diesel Oxidation Catalyst
- DPF Diesel Particulate Filter
- SCR Selective Catalytic Reduction
- the exhaust gas treatment apparatus may comprise only DPF or the combination of DOC and DPF, which recently further comprises SCR provided with the urea water injection system for the reduction of nitrogen oxide according to the strict regulation of the exhaust gas.
- the present invention has been made to solve the aforementioned problems occurring in the related art, and it is an object of the present invention to provide the construction vehicle that makes better use of the space for installing the exhaust gas treatment apparatus and allows the more efficient maintenance of the same by disposing the exhaust gas treatment apparatus in more efficient way.
- a first exhaust gas treatment apparatus which is connected to the input side of the exhaust pipe of engine and includes the diesel oxidation catalyst device and the diesel particulate filter device
- a second exhaust gas treatment apparatus which is connected to the output side of said first exhaust gas treatment apparatus and includes the selective catalytic reduction device
- a mixing pipe which is installed between the output side of the first exhaust gas treatment apparatus and the input side of the second exhaust gas treatment apparatus with the urea water injection device on either side thereof.
- the first exhaust gas treatment apparatus is disposed farther away from the engine than the second exhaust gas treatment apparatus which is positioned at the upper side of the first exhaust gas treatment apparatus.
- a plate is further provided having the slope corresponding to the configuration arranging the first exhaust gas treatment apparatus and the second exhaust gas treatment apparatus that are fixed at the top surface of the plate with the bottom surface of the plate interconnected with the cowl frame connected to the upper frame.
- a first bracket and a second bracket are further provided on the top surface of the plate and have the grooves to seat the first exhaust gas treatment apparatus and the second exhaust gas treatment apparatus.
- At least one of the fixing members are further provided at both the upper ends of the first bracket and the second bracket to fix said first exhaust gas treatment apparatus and said second exhaust gas treatment apparatus while covering the outer circumferences thereof.
- first exhaust gas treatment apparatus and the second exhaust gas treatment apparatus are disposed in overlapping appearance when viewed from the above.
- the construction vehicle provided with the exhaust gas treatment apparatus according to the disclosure has the following effect.
- the exhaust gas treatment apparatus can be installed efficiently by making better use of the space and the maintenances such as the inspection and replacement of the diesel particulate filer can be made more efficiently.
- the construction vehicle comprises the first exhaust gas treatment apparatus connected to the exhaust pipe of the diesel engine, the second exhaust gas treatment apparatus connected to the first exhaust gas treatment apparatus and the mixing pipe to interconnect the first exhaust gas treatment apparatus with the second exhaust gas treatment apparatus.
- the first exhaust gas treatment apparatus (100) connected to the exhaust pipe (410) includes the diesel oxidation catalyst device (113) and the diesel particulate filter (114).
- the diesel oxidation catalyst device oxidizes the carbon monoxide and the hydrocarbon by the catalyst, and converts them to the carbon dioxide and water.
- the diesel particulate filter consists of the porous grids, passes the air, and filters the particulate matters of air pollutants.
- the air pollutants are collected, the backpressure increases with the output decreased, which are read by the differential pressure sensor and the temperature sensor, etc.
- the air pollutants thus collected are burnt off by the regeneration process based on the differential pressure and the driving distance, etc. and are prevented from being emitted into the air.
- the first exhaust gas treatment device (100) contains the diesel oxidation catalyst device (113) and the diesel particulate filter (114) sequentially within the first housing (110) in which the input side of the same where the diesel oxidation catalyst device (113) is positioned is connected to the exhaust pipe (410) while the output side of the same where the diesel particulate filter (114) is positioned is connected to the second exhaust gas treatment apparatus (200) through the mixing pipe (300) described below.
- the second exhaust gas treatment apparatus (200) includes the selective catalytic reduction device (212).
- the second exhaust gas treatment apparatus (200) is employed for the reduction of nitrogen oxide in the hazardous exhaust gas, in which the urea water is injected into the exhaust gas of the high temperature at the front end of the catalyst and the ammonia is generated by the thermal decomposition and hydrolysis, which then reacts with the nitrogen oxide within the catalyst making nitrogen and water.
- the second exhaust gas treatment apparatus (200) according to an embodiment of the present invention comprises the second housing (210) including the diesel catalytic reduction device (212), in which the input side of the same is connected to the first exhaust gas treatment apparatus (100) through the mixing pipe (300) while the output side of the same is connected to the tail pipe.
- the mixing pipe (300) interconnects the first exhaust gas treatment apparatus (100) with the second exhaust gas treatment apparatus (200), in which the urea water is injected to reduce the nitrogen oxide.
- the mixing pipe (300) interconnects the first exhaust gas treatment apparatus (100) with the output side (112) of the first housing (110) and the second exhaust gas treatment apparatus (200) with the input side (211) of the second housing (210), respectively, and on either side of the mixing pipe (300) is installed the urea water injection device to inject the urea water to the exhaust gas.
- the first exhaust gas treatment apparatus (100) and the second exhaust gas treatment apparatus (200) are disposed in the one side of the upper frame (700) with engine (400) installed.
- the first exhaust gas treatment apparatus (100) is disposed at the upper side of the second exhaust gas treatment apparatus (200) and positioned either farther away or closer to the engine (400) than the second exhaust gas treatment apparatus (200).
- the first exhaust gas treatment apparatus (100) may be disposed at the lower side of the second exhaust gas treatment apparatus (200) and positioned either farther away or closer to the engine (400) than the second exhaust gas treatment apparatus (200).
- the example according to the disclosure represents the configuration in which the second exhaust gas treatment apparatus (200) is disposed at the upper side of the first exhaust gas treatment apparatus (100) and positioned closer to the engine (400) than the first exhaust gas treatment apparatus (100).
- Such configuration can minimize the width in the axial direction of the engine (400) allowing better use of the space for the installation of the first exhaust gas treatment apparatus (100) and the second exhaust gas treatment apparatus (200).
- the first exhaust gas treatment apparatus (100) and the second exhaust gas treatment apparatus (200) are disposed with the axes in the length direction fully overlapped when viewed from the above.
- the first exhaust gas treatment apparatus (100) and the second exhaust gas treatment apparatus (200) can be disposed with the axes in the length direction not overlapped for the inspection and maintenance of the first exhaust gas treatment apparatus (100), or as shown in Fig. 2b , partially overlapped.
- the first exhaust gas treatment apparatus (100) and the second exhaust gas treatment apparatus (200) are installed on the plate (500) forming the integral structure in which the plate (500) can be fixed onto the upper frame (700) with the engine (400) installed, or preferably, onto the cowl frame (600) interconnected perpendicularly to the upper frame (700) as shown in Fig. 1 .
- the plate (500) has the slope corresponding to the configuration of the first exhaust gas treatment apparatus (100) and the second exhaust gas treatment apparatus (200) and, on the top surface of the plate (500) is provided the first bracket (510) and the second bracket (520) for the first exhaust gas treatment apparatus (100) and the second exhaust gas treatment apparatus (200) to be seated, respectively.
- the bottom surface of the plate (500) is clamped in contact with the top surface of the cowl frame (600) by the clamping means, and so it is preferable to configure the bottom surface of the plate (500) corresponding to the top surface of the cowl frame (600).
- the first bracket (510) and the second bracket (520) have the grooves (530) at the upper side thereof to seat the first exhaust gas treatment apparatus (100) and the second exhaust gas treatment apparatus (200).
- Such grooves are configured corresponding to the outer circumference shapes of the first housing (110) and the second housing (210) so as to make the contact areas between the grooves (530) and the first housing (110) and the second housing (210), respectively, maximized for the stable seating.
- the fixing members (540) which cover and fix the outer circumferences of the first housing (110) and the second housing (210).
- the fixing members (540) may consist of a plurality of the same for the stable fixing of the first housing (110) and the second housing (210), and the shape of fixing member and the clamping method could be variously selected.
- the first exhaust gas treatment apparatus (100) and the second exhaust gas treatment apparatus (200) are fixed on the first bracket (510) and the second bracket (520) of the plate (500), respectively, forming the integral structure wherein the second exhaust gas treatment apparatus (200) is positioned at the upper side of the first exhaust gas treatment apparatus (100) and has the slanted configuration towards the engine (400).
- the plate (500) is interconnected with the top surface of the cowl frame (600) which is fixed perpendicularly to the one side of the upper frame (700) while the first exhaust gas treatment apparatus (100) is connected to the exhaust pipe (410) of the engine (400).
- the installation of the exhaust gas treatment apparatus can be made simple and due to the enough room along the length direction of the engine (400), the installation efficiency can be increased allowing the inspection or replacement of the diesel particulate filter (114) to be done readily without the interference with the surrounding devices.
- the treatment process of the exhaust gas is as follows.
- the exhaust gas is delivered to the exhaust pipe (410) and passes through the diesel oxidation catalyst device (113) of the first exhaust gas treatment apparatus (100) where the hydrocarbon and the carbon monoxide are reduced by the oxidation catalysis while the particulate matters are filtered by the diesel particulate filter (114) of the first exhaust gas treatment apparatus (100) and burnt off periodically leaving the ash to be cleaned.
- the exhaust gas passing through the diesel particulate filter (114) is delivered to the mixing pipe (300) where the urea water is injected, and the nitrogen oxide is converted into the nitrogen and water in the second exhaust treatment apparatus (200) connected to the mixing pipe (300).
- the construction vehicle according to the present invention is provided with the efficient configuration of the exhaust gas treatment apparatus installed in the one side of the diesel engine, which can reduce the width in the axial direction of the engine, thereby not only improving the installation workability of the exhaust gas treatment apparatus, but allowing the efficient inspection and maintenance of the exhaust gas treatment apparatus.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Materials Engineering (AREA)
- Exhaust Gas After Treatment (AREA)
- Processes For Solid Components From Exhaust (AREA)
Abstract
Description
- The present invention relates to a construction vehicle provided with an exhaust gas treatment apparatus for reducing the air pollution gases generated in the diesel engine.
- The diesel engine used for the construction vehicle generates the exhaust gas, particularly, due to the incomplete combustion, the exhaust gas with carbon monoxide or hydrocarbon of the relatively less amount and with nitrogen oxide of the relatively more amount.
- The diesel engine is provided with the exhaust gas treatment apparatus for purifying the exhaust gas, which comprises the devices such as DOC (Diesel Oxidation Catalyst) which converts carbon monoxide or hydrocarbon into carbon dioxide or water, DPF (Diesel Particulate Filter) which collects the particulate matters like dust to be burnt off, and SCR (Selective Catalytic Reduction) which converts nitrogen oxide to into nitrogen or water, etc.
- The exhaust gas treatment apparatus may comprise only DPF or the combination of DOC and DPF, which recently further comprises SCR provided with the urea water injection system for the reduction of nitrogen oxide according to the strict regulation of the exhaust gas.
- On the other hand, in the conventional exhaust gas treatment apparatus, SCR and the integral combination of DOC with DPF are configured in parallel with each other in the upper side of the cowl frame connected to the upper frame, which due to the small space, makes the installation, inspection and replacement of the devices difficult.
- Accordingly, the present invention has been made to solve the aforementioned problems occurring in the related art, and it is an object of the present invention to provide the construction vehicle that makes better use of the space for installing the exhaust gas treatment apparatus and allows the more efficient maintenance of the same by disposing the exhaust gas treatment apparatus in more efficient way.
- To achieve the above and other objectives, in accordance with an embodiment of the present invention, there is provided with a first exhaust gas treatment apparatus which is connected to the input side of the exhaust pipe of engine and includes the diesel oxidation catalyst device and the diesel particulate filter device, a second exhaust gas treatment apparatus which is connected to the output side of said first exhaust gas treatment apparatus and includes the selective catalytic reduction device, and a mixing pipe which is installed between the output side of the first exhaust gas treatment apparatus and the input side of the second exhaust gas treatment apparatus with the urea water injection device on either side thereof.
- The first exhaust gas treatment apparatus is disposed farther away from the engine than the second exhaust gas treatment apparatus which is positioned at the upper side of the first exhaust gas treatment apparatus.
- Preferably, a plate is further provided having the slope corresponding to the configuration arranging the first exhaust gas treatment apparatus and the second exhaust gas treatment apparatus that are fixed at the top surface of the plate with the bottom surface of the plate interconnected with the cowl frame connected to the upper frame.
- More preferably, a first bracket and a second bracket are further provided on the top surface of the plate and have the grooves to seat the first exhaust gas treatment apparatus and the second exhaust gas treatment apparatus.
- More preferably, at least one of the fixing members are further provided at both the upper ends of the first bracket and the second bracket to fix said first exhaust gas treatment apparatus and said second exhaust gas treatment apparatus while covering the outer circumferences thereof.
- More preferably, the first exhaust gas treatment apparatus and the second exhaust gas treatment apparatus are disposed in overlapping appearance when viewed from the above.
- The construction vehicle provided with the exhaust gas treatment apparatus according to the disclosure has the following effect.
- As the first exhaust gas treatment apparatus is installed on the plate in such configuration that the same is positioned farther away from the engine than the second exhaust gas treatment apparatus, and is placed underneath the second exhaust gas treatment apparatus, thus forming the integral structure with the bottom surface of the plate assembled at the top surface of the cowl frame connected to the upper frame, the exhaust gas treatment apparatus can be installed efficiently by making better use of the space and the maintenances such as the inspection and replacement of the diesel particulate filer can be made more efficiently.
- Moreover, the effect described above is apparently exhibited regardless of whether or not the inventor recognizes it, and therefore is only the example disclosed without including all other effects that can take place in reality.
- In addition, the effect disclosed should be understood by the overall description of the invention and the effects that are not disclosed but the ordinary person in the art can recognize from the present disclosure are taken as the effects disclosed according to the description of the present invention.
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Fig. 1 is the perspective view of the exhaust gas treatment apparatus provided in the construction vehicle according to an embodiment of the description. -
Fig. 2a is the side view of the exhaust gas treatment apparatus installed according to an embodiment of the description. -
Fig. 2b is the another side view of exhaust gas treatment apparatus installed according to an embodiment of the description. -
Fig. 3 is the partial perspective view of the configuration of the exhaust gas treatment apparatus according to an embodiment of the description. -
- 100: first exhaust gas treatment apparatus 110: first housing
- 111, 211: input side 112: output side
- 113: diesel oxidation catalyst device 114: diesel particulate filter
- 200: second exhaust gas treatment apparatus 210: second housing
- 212: selective catalytic reduction device 300: mixing pipe
- 400: engine 410: exhaust pipe
- 500: plate 510: first bracket
- 520: second bracket 530: seat groove
- 540: fixing member 600: cowl frame
- 700: upper frame
- Hereinafter, the preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings.
- Although the present invention has been described with reference to the preferred embodiment in the attached figures, it is to be understood that various equivalent modifications and variations of the embodiments can be made by a person having an ordinary skill in the art without departing from the spirit and scope of the present invention as recited in the claims.
- Furthermore, the size and shape of the element shown in the drawing may have been enlarged for the convenience and clarity of the description. The terminologies defined specifically in the present invention can be changed depending on the intention or convention of the users, and the definition of the terminology should be understood base on the overall description.
- The construction vehicle according to an embodiment of the present invention comprises the first exhaust gas treatment apparatus connected to the exhaust pipe of the diesel engine, the second exhaust gas treatment apparatus connected to the first exhaust gas treatment apparatus and the mixing pipe to interconnect the first exhaust gas treatment apparatus with the second exhaust gas treatment apparatus.
- As shown in
Fig. 1 , the first exhaust gas treatment apparatus (100) connected to the exhaust pipe (410) includes the diesel oxidation catalyst device (113) and the diesel particulate filter (114). The diesel oxidation catalyst device oxidizes the carbon monoxide and the hydrocarbon by the catalyst, and converts them to the carbon dioxide and water. - The diesel particulate filter consists of the porous grids, passes the air, and filters the particulate matters of air pollutants. When the air pollutants are collected, the backpressure increases with the output decreased, which are read by the differential pressure sensor and the temperature sensor, etc. The air pollutants thus collected are burnt off by the regeneration process based on the differential pressure and the driving distance, etc. and are prevented from being emitted into the air.
- The first exhaust gas treatment device (100) contains the diesel oxidation catalyst device (113) and the diesel particulate filter (114) sequentially within the first housing (110) in which the input side of the same where the diesel oxidation catalyst device (113) is positioned is connected to the exhaust pipe (410) while the output side of the same where the diesel particulate filter (114) is positioned is connected to the second exhaust gas treatment apparatus (200) through the mixing pipe (300) described below.
- The second exhaust gas treatment apparatus (200) includes the selective catalytic reduction device (212). The second exhaust gas treatment apparatus (200) is employed for the reduction of nitrogen oxide in the hazardous exhaust gas, in which the urea water is injected into the exhaust gas of the high temperature at the front end of the catalyst and the ammonia is generated by the thermal decomposition and hydrolysis, which then reacts with the nitrogen oxide within the catalyst making nitrogen and water.
- The second exhaust gas treatment apparatus (200) according to an embodiment of the present invention comprises the second housing (210) including the diesel catalytic reduction device (212), in which the input side of the same is connected to the first exhaust gas treatment apparatus (100) through the mixing pipe (300) while the output side of the same is connected to the tail pipe.
- The mixing pipe (300) interconnects the first exhaust gas treatment apparatus (100) with the second exhaust gas treatment apparatus (200), in which the urea water is injected to reduce the nitrogen oxide.
- The mixing pipe (300) interconnects the first exhaust gas treatment apparatus (100) with the output side (112) of the first housing (110) and the second exhaust gas treatment apparatus (200) with the input side (211) of the second housing (210), respectively, and on either side of the mixing pipe (300) is installed the urea water injection device to inject the urea water to the exhaust gas.
- The first exhaust gas treatment apparatus (100) and the second exhaust gas treatment apparatus (200) are disposed in the one side of the upper frame (700) with engine (400) installed. The first exhaust gas treatment apparatus (100) is disposed at the upper side of the second exhaust gas treatment apparatus (200) and positioned either farther away or closer to the engine (400) than the second exhaust gas treatment apparatus (200).
- If necessary, the first exhaust gas treatment apparatus (100) may be disposed at the lower side of the second exhaust gas treatment apparatus (200) and positioned either farther away or closer to the engine (400) than the second exhaust gas treatment apparatus (200).
- The example according to the disclosure represents the configuration in which the second exhaust gas treatment apparatus (200) is disposed at the upper side of the first exhaust gas treatment apparatus (100) and positioned closer to the engine (400) than the first exhaust gas treatment apparatus (100). Such configuration can minimize the width in the axial direction of the engine (400) allowing better use of the space for the installation of the first exhaust gas treatment apparatus (100) and the second exhaust gas treatment apparatus (200).
- According to the example of the disclosure, the first exhaust gas treatment apparatus (100) and the second exhaust gas treatment apparatus (200) are disposed with the axes in the length direction fully overlapped when viewed from the above. However, as shown in
Fig. 2a , the first exhaust gas treatment apparatus (100) and the second exhaust gas treatment apparatus (200) can be disposed with the axes in the length direction not overlapped for the inspection and maintenance of the first exhaust gas treatment apparatus (100), or as shown inFig. 2b , partially overlapped. - As shown in
Fig. 3 , the first exhaust gas treatment apparatus (100) and the second exhaust gas treatment apparatus (200) are installed on the plate (500) forming the integral structure in which the plate (500) can be fixed onto the upper frame (700) with the engine (400) installed, or preferably, onto the cowl frame (600) interconnected perpendicularly to the upper frame (700) as shown inFig. 1 . - The plate (500) has the slope corresponding to the configuration of the first exhaust gas treatment apparatus (100) and the second exhaust gas treatment apparatus (200) and, on the top surface of the plate (500) is provided the first bracket (510) and the second bracket (520) for the first exhaust gas treatment apparatus (100) and the second exhaust gas treatment apparatus (200) to be seated, respectively.
- The bottom surface of the plate (500) is clamped in contact with the top surface of the cowl frame (600) by the clamping means, and so it is preferable to configure the bottom surface of the plate (500) corresponding to the top surface of the cowl frame (600).
- The first bracket (510) and the second bracket (520) have the grooves (530) at the upper side thereof to seat the first exhaust gas treatment apparatus (100) and the second exhaust gas treatment apparatus (200). Such grooves are configured corresponding to the outer circumference shapes of the first housing (110) and the second housing (210) so as to make the contact areas between the grooves (530) and the first housing (110) and the second housing (210), respectively, maximized for the stable seating.
- On the opposite ends of the upper sides of the first bracket (510) and the second bracket (520) are installed the fixing members (540) which cover and fix the outer circumferences of the first housing (110) and the second housing (210).
- The fixing members (540) may consist of a plurality of the same for the stable fixing of the first housing (110) and the second housing (210), and the shape of fixing member and the clamping method could be variously selected.
- The installation procedure of the exhaust gas treatment apparatus will be described below.
- The first exhaust gas treatment apparatus (100) and the second exhaust gas treatment apparatus (200) are fixed on the first bracket (510) and the second bracket (520) of the plate (500), respectively, forming the integral structure wherein the second exhaust gas treatment apparatus (200) is positioned at the upper side of the first exhaust gas treatment apparatus (100) and has the slanted configuration towards the engine (400).
- The plate (500) is interconnected with the top surface of the cowl frame (600) which is fixed perpendicularly to the one side of the upper frame (700) while the first exhaust gas treatment apparatus (100) is connected to the exhaust pipe (410) of the engine (400).
- Thus, as the first exhaust gas treatment apparatus (100) and the second exhaust gas treatment apparatus (200) are fixed on the first bracket (510) and the second bracket (520) of the plate (500) by the fixing members (540), forming the integral structure, the installation of the exhaust gas treatment apparatus can be made simple and due to the enough room along the length direction of the engine (400), the installation efficiency can be increased allowing the inspection or replacement of the diesel particulate filter (114) to be done readily without the interference with the surrounding devices.
- The treatment process of the exhaust gas is as follows.
- The exhaust gas is delivered to the exhaust pipe (410) and passes through the diesel oxidation catalyst device (113) of the first exhaust gas treatment apparatus (100) where the hydrocarbon and the carbon monoxide are reduced by the oxidation catalysis while the particulate matters are filtered by the diesel particulate filter (114) of the first exhaust gas treatment apparatus (100) and burnt off periodically leaving the ash to be cleaned.
- The exhaust gas passing through the diesel particulate filter (114) is delivered to the mixing pipe (300) where the urea water is injected, and the nitrogen oxide is converted into the nitrogen and water in the second exhaust treatment apparatus (200) connected to the mixing pipe (300).
- While the present invention has been described regarding practical embodiments, it is to be understood that the invention is intended to cover various modifications. Therefore, the scope of the invention is not limited to the disclosed embodiments and shall be determined by not only the claims appended, but the equivalent arrangements.
- The construction vehicle according to the present invention is provided with the efficient configuration of the exhaust gas treatment apparatus installed in the one side of the diesel engine, which can reduce the width in the axial direction of the engine, thereby not only improving the installation workability of the exhaust gas treatment apparatus, but allowing the efficient inspection and maintenance of the exhaust gas treatment apparatus.
Claims (5)
- An exhaust gas treatment apparatus used for a construction vehicle for reducing the air pollutants of the diesel engine, comprising;
a first exhaust gas treatment apparatus which is connected to the input side of the exhaust pipe of engine and includes the diesel oxidation catalyst device (DOC) and the diesel particulate filter device (DPF),
a second exhaust gas treatment apparatus which is connected to the output side of said first exhaust gas treatment apparatus and includes the selective catalytic reduction device (SCR), and
a mixing pipe which is installed between the output side of said first exhaust gas treatment apparatus and the input side of said second exhaust gas treatment apparatus and includes the urea water injection device,
wherein said first exhaust gas treatment apparatus is disposed farther away from the engine than said second exhaust gas treatment apparatus, and said second exhaust gas treatment apparatus is positioned at the upper side of said first exhaust gas treatment apparatus. - The exhaust gas treatment apparatus of claim 1, further comprising,
a plate having the slope corresponding to the configuration arranging said first exhaust gas treatment apparatus and said second exhaust gas treatment apparatus which are fixed at the top surface of the plate while the bottom surface of the plate is interconnected with the top surface of the cowl frame positioned to the one side of the upper frame. - The exhaust gas treatment apparatus of claim 2, further comprising,
a first bracket and a second bracket which have the grooves to seat said first exhaust gas treatment apparatus and said second exhaust gas treatment apparatus, respectively, while the first bracket and the second bracket are placed on the top surface of said plate. - The exhaust gas treatment apparatus of claim 3, further comprising,
at least one of fixing members which are placed at the opposite upper ends of said first bracket and said second bracket so as to fix said first exhaust gas treatment apparatus and said second exhaust gas treatment apparatus while covering the outer circumferences thereof. - The exhaust gas treatment apparatus of claim 1, wherein said first exhaust gas treatment apparatus and said second exhaust gas treatment apparatus are disposed with at least one part thereof overlapped when viewed from the above.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/KR2014/005050 WO2015190623A1 (en) | 2014-06-09 | 2014-06-09 | Construction vehicle |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3153630A1 true EP3153630A1 (en) | 2017-04-12 |
EP3153630A4 EP3153630A4 (en) | 2018-01-10 |
Family
ID=54833699
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14894794.8A Withdrawn EP3153630A4 (en) | 2014-06-09 | 2014-06-09 | Construction vehicle |
Country Status (4)
Country | Link |
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US (1) | US20170159540A1 (en) |
EP (1) | EP3153630A4 (en) |
CN (1) | CN106460367A (en) |
WO (1) | WO2015190623A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107178413A (en) * | 2017-07-27 | 2017-09-19 | 天纳克(苏州)排放系统有限公司 | Engine exhaust post processing encapsulation and application |
CN107255043A (en) * | 2017-07-27 | 2017-10-17 | 天纳克(苏州)排放系统有限公司 | Engine exhaust post processing encapsulation and application |
JP6857112B2 (en) * | 2017-11-29 | 2021-04-14 | 日立建機株式会社 | Work vehicle |
CN110056412A (en) * | 2018-01-19 | 2019-07-26 | 天纳克(苏州)排放系统有限公司 | Exhaust gas post-treatment device |
CN110080862A (en) * | 2018-01-26 | 2019-08-02 | 天纳克(苏州)排放系统有限公司 | Exhaust gas post-treatment device |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8191668B2 (en) * | 2008-08-07 | 2012-06-05 | Caterpillar Inc. | Mounting assembly for emissions control system |
US7966979B2 (en) * | 2009-01-26 | 2011-06-28 | Caterpillar Inc. | Mounting and cooling device for emissions system electronics |
CN102365431B (en) * | 2009-03-26 | 2013-01-02 | 株式会社小松制作所 | Exhaust gas purifying device for internal combustion engine |
JP5339079B2 (en) * | 2009-08-03 | 2013-11-13 | 三菱ふそうトラック・バス株式会社 | Exhaust gas purification device for internal combustion engine |
JP5279753B2 (en) * | 2010-04-15 | 2013-09-04 | Udトラックス株式会社 | Exhaust purification device |
JP5630216B2 (en) * | 2010-10-29 | 2014-11-26 | コベルコ建機株式会社 | Construction machinery |
KR101952952B1 (en) * | 2010-12-24 | 2019-02-28 | 두산인프라코어 주식회사 | a muffler assay mounting apparatus for a construction heavy equipment |
JP5664259B2 (en) * | 2011-01-17 | 2015-02-04 | 三菱ふそうトラック・バス株式会社 | Exhaust purification device |
JP5349576B2 (en) * | 2011-12-27 | 2013-11-20 | 株式会社小松製作所 | Reducing agent aqueous solution mixing device and exhaust gas aftertreatment device |
CA2862258A1 (en) * | 2012-01-06 | 2013-07-11 | Volvo Construction Equipment Ab | Exhaust gas reduction device for heavy equipment |
KR101439120B1 (en) * | 2012-08-23 | 2014-09-11 | 대동공업주식회사 | Fixing structure of Exhaust Gas After treatment Device |
JP5474155B1 (en) * | 2012-10-16 | 2014-04-16 | 株式会社小松製作所 | Exhaust treatment unit and method of attaching and removing exhaust treatment unit |
JP5442830B1 (en) * | 2012-10-16 | 2014-03-12 | 株式会社小松製作所 | Excavator |
US9133601B2 (en) * | 2012-10-16 | 2015-09-15 | Komatsu Ltd. | Hydraulic excavator |
JP5449517B1 (en) * | 2012-12-20 | 2014-03-19 | 株式会社小松製作所 | Work vehicle |
WO2014125624A1 (en) * | 2013-02-15 | 2014-08-21 | 株式会社小松製作所 | Exhaust gas treatment unit, manufacturing method for exhaust gas treatment unit, and working vehicle |
US9238901B2 (en) * | 2013-08-09 | 2016-01-19 | Komatsu Ltd. | Supporting mechanism, exhaust treatment unit, and wheel loader |
JP5878675B1 (en) * | 2015-05-21 | 2016-03-08 | 株式会社小松製作所 | Excavator |
-
2014
- 2014-06-09 CN CN201480079747.9A patent/CN106460367A/en active Pending
- 2014-06-09 EP EP14894794.8A patent/EP3153630A4/en not_active Withdrawn
- 2014-06-09 WO PCT/KR2014/005050 patent/WO2015190623A1/en active Application Filing
- 2014-06-09 US US15/316,652 patent/US20170159540A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
US20170159540A1 (en) | 2017-06-08 |
WO2015190623A1 (en) | 2015-12-17 |
EP3153630A4 (en) | 2018-01-10 |
CN106460367A (en) | 2017-02-22 |
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