KR101260764B1 - Fixing structure of Exhaust Gas After treatment Device - Google Patents

Fixing structure of Exhaust Gas After treatment Device Download PDF

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Publication number
KR101260764B1
KR101260764B1 KR1020100113707A KR20100113707A KR101260764B1 KR 101260764 B1 KR101260764 B1 KR 101260764B1 KR 1020100113707 A KR1020100113707 A KR 1020100113707A KR 20100113707 A KR20100113707 A KR 20100113707A KR 101260764 B1 KR101260764 B1 KR 101260764B1
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KR
South Korea
Prior art keywords
exhaust gas
engine
turbocharger
aftertreatment
inlet
Prior art date
Application number
KR1020100113707A
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Korean (ko)
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KR20120052510A (en
Inventor
신용
Original Assignee
대동공업주식회사
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Publication date
Application filed by 대동공업주식회사 filed Critical 대동공업주식회사
Priority to KR1020100113707A priority Critical patent/KR101260764B1/en
Publication of KR20120052510A publication Critical patent/KR20120052510A/en
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Publication of KR101260764B1 publication Critical patent/KR101260764B1/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00Exhaust 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
    • F01N13/08Other arrangements or adaptations of exhaust conduits
    • F01N13/10Other arrangements or adaptations of exhaust conduits of exhaust manifolds
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00Exhaust 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00Exhaust 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
    • F01N13/18Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1805Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2590/00Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
    • F01N2590/08Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for heavy duty applications, e.g. trucks, buses, tractors, locomotives

Abstract

An exhaust gas aftertreatment device for an agricultural work vehicle according to an embodiment of the present invention has a structure in which an exhaust gas aftertreatment device for purifying engine exhaust gas for an agricultural work vehicle is installed in an engine room. The treatment apparatus is arranged in parallel in the longitudinal direction of the engine in the upper exhaust manifold of the engine, the turbocharger is located below the exhaust gas inlet, characterized in that the exhaust gas inlet is coupled to the turbocharger and the flange pipe.

Description

Fixing structure of Exhaust Gas After treatment Device

The present invention relates to a mounting structure of an exhaust gas aftertreatment apparatus for an agricultural vehicle.

Most agricultural work vehicles, such as tractors, are provided with driving and working power through a diesel engine.

The diesel engine is a reciprocating internal combustion engine that operates by ignition of light or heavy oil as fuel and ignition, and has a high durability but has a serious effect on air pollution compared to gasoline engines (NOx). ) And particulate matter (PM) emissions are severe.

Therefore, countries are tightening regulations on exhaust gas of diesel engines, and technically delay fuel injection timing, reduce exhaust gas concentration by using exhaust gas recirculation device, and improve combustion performance of engine to reduce particulate matter. Various measures such as improvement are being taken.

In particular, the post-treatment technology includes an oxidation catalyst for purifying high boiling point hydrocarbons in particulate matter (PM), a DeNOx catalyst for decomposing or reducing nitrogen oxides (NOx) in an excess oxygen atmosphere, and a diesel filter for filtering particulate matter (PM). Particulate filter (soot) filtration filter (DPF) and the like.

Among these, the diesel particulate filter (DPF) is a technology that collects particulate matter discharged from a diesel engine with a filter, burns it (recycles), and collects particulate matter and continues to use it. It is known to be an excellent exhaust gas aftertreatment in terms of performance.

However, such a soot filtration filter (DPF) (hereinafter, collectively referred to as an exhaust gas aftertreatment device) has a disadvantage in that it is bulky and heavy, and there are many difficulties in mounting it on an existing work vehicle.

In particular, since the exhaust gas aftertreatment device requires an exhaust temperature of a predetermined temperature or more in order to obtain a reliable combustion removal of particulate matter or sufficient catalytic activity, it is a limited problem that must be installed as close to the engine as possible due to its characteristics. There was.

Therefore, it is inevitable to install such an exhaust gas aftertreatment device in the engine room. However, since the existing engine room structure is narrow, there are many difficulties in securing the installation space.

An object of the present invention devised to solve the problems of the prior art is to arrange the exhaust aftertreatment device in parallel along the longitudinal direction of the engine at the top of the exhaust manifold of the engine, the turbocharger is located below the exhaust inlet The exhaust gas inlet is coupled to the turbocharger and the flange tube, so that the distance between the exhaust gas outlet of the engine and the inlet of the exhaust gas of the exhaust gas aftertreatment device is shortened to a shortest distance. An exhaust gas aftertreatment apparatus is provided.

According to an aspect of the present invention, there is provided a structure in which an exhaust gas aftertreatment device for purifying an engine exhaust gas of a farming work vehicle is mounted in an engine room, wherein the exhaust gas aftertreatment device is configured to provide The parallel arrangement in the longitudinal direction, the turbocharger is located below the exhaust gas inlet, the exhaust gas inlet is mounted on the exhaust gas post-treatment device of the agricultural work vehicle, characterized in that coupled to the turbocharger and the flange pipe. Can be provided.

Here, the exhaust gas aftertreatment device may be arranged on the upper left side of the engine when the flywheel housing is viewed from the front.

In addition, the exhaust gas after-treatment apparatus may form an inlet for exhaust gas in the rear of the engine, and form an outlet of purge gas in the front of the engine.

At this time, the exhaust gas after-treatment device may be formed so that the outlet of the purification gas toward the bottom of the engine room.

In addition, the flange pipe is bent in the form of a bent pipe, the flange can be coupled to the turbocharger at the end of the horizontal tube, it is possible to form another flange coupling portion is coupled to the exhaust gas inlet in the vertical tube end.

According to the present invention, the exhaust gas aftertreatment device is arranged in parallel along the longitudinal direction of the engine at an upper exhaust manifold of the engine, and a turbocharger is positioned below the exhaust gas inlet, and the exhaust gas inlet is The coupling between the turbocharger and the flange tube reduces the distance between the exhaust gas outlet of the engine and the inlet of the exhaust gas of the exhaust gas aftertreatment device to the shortest distance, thereby improving energy efficiency, while exhaust gas aftertreatment. It has the effect of improving the purification performance of the device.

1 is an external view showing the engine room of the agricultural work vehicle according to an embodiment of the present invention.
Figure 2 is a front view showing the internal structure of the engine room to explain the mounting structure of the exhaust gas after-treatment apparatus of an agricultural work vehicle according to an embodiment of the present invention.
Figure 3 is an enlarged view of the main portion for explaining the mounting structure of the exhaust gas after-treatment apparatus of the agricultural work vehicle according to the present invention.
Figure 4 is a side view of the inside of the engine room from the rear of the vehicle body toward the front to explain the mounting structure of the exhaust gas after-treatment apparatus of an agricultural work vehicle according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is an external view illustrating an engine room of an agricultural work vehicle according to an exemplary embodiment of the present invention.

Referring to FIG. 1, an engine room 100 of a tractor is disclosed. The engine room 100 has a configuration in which the engine 120 inside is protected by a bonnet 110 that can be opened upward.

When looking at the engine room 100 through Figure 1, the left side is the front side of the engine 120, the right side is the rear side of the engine 120.

The power generated through the engine 120 is transmitted to the transmission (not shown) via the flywheel housing 130 at the rear side of the engine 120, and at this time, the space of the engine room 100 at the front side of the engine 120 Radiator device for cooling the engine 120 may be installed.

An internal structure of a state in which the bonnet 110 of the engine room 100 is removed will be described with reference to FIG. 2.

Figure 2 is a front view showing the internal structure of the engine room to explain the mounting structure of the exhaust gas after-treatment apparatus of the agricultural work vehicle according to an embodiment of the present invention, Figure 3 is the exhaust of the agricultural work vehicle according to the invention It is an enlarged view of a principal part for demonstrating the mounting structure of a gas aftertreatment apparatus.

2 and 3, an exhaust gas aftertreatment apparatus 200 for purifying exhaust gas generated from the engine 120 of the tractor is mounted in the engine room 100.

Here, the exhaust gas aftertreatment device 200 will be described as to collect the particulate matter discharged from the diesel engine with a filter, burn it, and collect the particulate matter again and continue to use it, thereby meeting the emission standard. In order to use a noble metal catalyst device, such an exhaust gas after-treatment device 200 is directly connected to the turbocharger 150 side of the engine 120.

The exhaust gas after-treatment device 200 has a canning appearance, and the canning is a DOC canning and a soot filtration device that surrounds and protects a diesel oxidation catalyst (hereinafter referred to as 'DOC'). (Diesel Particulate Filter; hereinafter referred to as 'DPF') is made of DPF canning to protect, the DOC canning side is provided with an exhaust gas inlet 210 for coupling to the turbocharger 150 of the engine 120 In addition, the DPF canning side may be provided with a purge gas outlet 220 connected to the muffler pipe (not shown).

2 and 3 again, the exhaust gas aftertreatment device 200 is disposed in parallel along the longitudinal direction of the engine 120 on the exhaust manifold 140 of the engine 120, and the exhaust gas inlet port. The turbocharger 150 is positioned below the 210, and the exhaust gas inlet 210 is coupled using the turbocharger 150 and the flange tube 160.

In this case, the exhaust gas after-treatment device 200 may be disposed on the upper left of the engine 120 when the flywheel housing 130 is viewed from the front.

In addition, the inlet 210 of the exhaust gas of the exhaust gas aftertreatment device 200 may be formed at the rear side of the engine 120, and the outlet 220 of the purification gas may be formed at the front side of the engine 120. have.

At this time, the exhaust gas inlet 210 and the purification gas outlet 220 of the exhaust gas after-treatment device 200 may be formed to face the bottom of the engine room (100).

At this time, the purge gas outlet 220 may be connected to the muffler pipe side extending to the outside of the engine room 100, through which the exhaust gas can be discharged to the atmosphere.

Here, the principle of the turbocharger 150, the turbo charger (turbo charger) is used to turn the turbine by using the exhaust gas pressure inevitably generated by, and then using the rotational force to suck the air intake than atmospheric pressure The engine is pushed to a high pressure to increase the power.

The flange pipe 160 to be connected between the turbocharger 150 and the exhaust gas aftertreatment device 200 is bent in a curved tube shape, so that a flange coupling portion coupled to the turbocharger 150 is formed at the end of the horizontal pipe. And, the end of the pipe in the vertical direction may be such that another flange coupling portion is coupled to the exhaust gas inlet 210.

According to the present invention having the above-described configuration, the exhaust gas generated by the engine 120 is discharged to the exhaust manifold 140 side, and then flows into the turbocharger 150 installed at the exhaust manifold 140 to supply the turbine. Will be driven. Thereafter, the exhaust gas is supplied to the exhaust gas inlet 210 of the exhaust gas aftertreatment device 200 through the flange pipe 160 connected to the turbocharger 150.

The exhaust gas supplied into the exhaust gas aftertreatment device 200 through the exhaust gas inlet 210 is purified through a diesel oxidation catalyst and a diesel particulate filter, and the purification gas outlet 220 Through the air. At this time, the purge gas outlet 220 may be connected to the muffler pipe installed in the engine room 100 outside.

According to an embodiment of the present invention as described above, the exhaust gas aftertreatment device is arranged in parallel along the longitudinal direction of the engine at the upper exhaust manifold of the engine, the turbocharger is located below the exhaust gas inlet, The exhaust gas inlet is coupled to the turbocharger and the flange tube to reduce the distance between the engine exhaust gas outlet and the exhaust gas inlet of the exhaust gas aftertreatment device to the shortest distance, thereby improving energy efficiency. In addition, the purification performance of the exhaust gas aftertreatment device can be improved.

100: engine room
110: bonnet
120: engine
130: flywheel housing
140: exhaust manifold
150: turbocharger
160: flange pipe
200: post-processing device
210: exhaust gas inlet
220: purge gas outlet

Claims (5)

  1. As a structure for mounting the exhaust gas after-treatment device 200 for purifying the exhaust gas of the engine 120 of the agricultural work vehicle in the engine room 100,
    The exhaust gas aftertreatment device 200 is disposed in parallel along the longitudinal direction of the engine 120 on the exhaust manifold 140 of the engine 120, the turbocharger 150 under the exhaust gas inlet 210. Is positioned, the exhaust gas inlet 210 is coupled to the turbocharger 150 and the flange pipe 160,
    The flange pipe 160 is bent in the form of a bent pipe, and form a flange coupling portion coupled to the turbocharger 150 at the end of the horizontal tube, another flange coupling coupled to the exhaust gas inlet 210 in the vertical tube end Form wealth,
    The exhaust gas aftertreatment device 200 is disposed on the upper left side of the engine 120 when the flywheel housing 130 is viewed from the front,
    The exhaust gas aftertreatment device 200 forms an inlet 210 for exhaust gas at the rear of the engine 120, and forms an outlet 220 for purge gas at the front of the engine 120.
    The exhaust gas aftertreatment device 200 is an exhaust gas aftertreatment device for an agricultural work vehicle, characterized in that to form the outlet 220 of the purification gas toward the bottom of the engine room (100).
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KR1020100113707A 2010-11-16 2010-11-16 Fixing structure of Exhaust Gas After treatment Device KR101260764B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100113707A KR101260764B1 (en) 2010-11-16 2010-11-16 Fixing structure of Exhaust Gas After treatment Device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020100113707A KR101260764B1 (en) 2010-11-16 2010-11-16 Fixing structure of Exhaust Gas After treatment Device
PCT/KR2011/008769 WO2012067433A2 (en) 2010-11-16 2011-11-16 Fitting portion structure of device for post-processing exhaust gas in agricultural operation vehicle

Publications (2)

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KR20120052510A KR20120052510A (en) 2012-05-24
KR101260764B1 true KR101260764B1 (en) 2013-05-06

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WO (1) WO2012067433A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101969969B1 (en) * 2012-08-23 2019-08-13 대동공업주식회사 Fixing structure of Exhaust Gas After treatment Device
KR101451182B1 (en) 2012-08-23 2014-10-15 대동공업주식회사 Fixing structure of Exhaust Gas After treatment Device
KR101886903B1 (en) 2014-11-03 2018-08-09 현대건설기계 주식회사 Method of Treatmenting Exhaust in Working Equipment

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009035111A (en) * 2007-08-01 2009-02-19 Hitachi Constr Mach Co Ltd Construction machinery
JP2010096153A (en) * 2008-10-20 2010-04-30 Yanmar Co Ltd Engine device for mounting on traveling vehicle

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4136752B2 (en) * 2003-03-28 2008-08-20 日立建機株式会社 Muffler mounting device for construction machinery
JP4432685B2 (en) * 2004-09-06 2010-03-17 マツダ株式会社 Engine intake / exhaust system structure
JP5140536B2 (en) * 2008-09-29 2013-02-06 ヤンマー株式会社 Combine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009035111A (en) * 2007-08-01 2009-02-19 Hitachi Constr Mach Co Ltd Construction machinery
JP2010096153A (en) * 2008-10-20 2010-04-30 Yanmar Co Ltd Engine device for mounting on traveling vehicle

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KR20120052510A (en) 2012-05-24
WO2012067433A2 (en) 2012-05-24
WO2012067433A3 (en) 2012-07-12

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