US20130298539A1 - Exhaust gas treatment device for construction machine - Google Patents

Exhaust gas treatment device for construction machine Download PDF

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Publication number
US20130298539A1
US20130298539A1 US13/996,228 US201013996228A US2013298539A1 US 20130298539 A1 US20130298539 A1 US 20130298539A1 US 201013996228 A US201013996228 A US 201013996228A US 2013298539 A1 US2013298539 A1 US 2013298539A1
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US
United States
Prior art keywords
exhaust gas
tail pipe
main body
tubes
pipe main
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
US13/996,228
Other languages
English (en)
Inventor
Jin-Ho Jang
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.)
Volvo Construction Equipment AB
Original Assignee
Volvo Construction Equipment AB
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 Volvo Construction Equipment AB filed Critical Volvo Construction Equipment AB
Assigned to VOLVO CONSTRUCTION EQUIPMENT AB reassignment VOLVO CONSTRUCTION EQUIPMENT AB ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: JANG, JIN-HO
Publication of US20130298539A1 publication Critical patent/US20130298539A1/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
    • 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
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • F01N13/082—Other arrangements or adaptations of exhaust conduits of tailpipe, e.g. with means for mixing air with exhaust for exhaust cooling, dilution or evacuation
    • 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
    • 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
    • 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
    • F01N13/007—Apparatus used as intake or exhaust silencer
    • 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
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • 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
    • F01N13/20—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 flared outlets, e.g. of fish-tail shape
    • 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
    • F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
    • F01N2260/02—Exhaust treating devices having provisions not otherwise provided for for cooling the device
    • 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
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/02—Tubes being perforated
    • F01N2470/04—Tubes being perforated characterised by shape, disposition or dimensions of apertures
    • 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

Definitions

  • the present invention relates to an exhaust gas treatment apparatus for a construction machine. More particularly, the present invention relates to an exhaust gas treatment apparatus for a construction machine, which is connected to a diesel particulate filter trap (DPF) to discharge exhaust gas from an engine to outside through the DPF, and can lower the temperature of the exhaust gas that is discharged in the air using heat exchange effects between the high-temperature exhaust gas and tubes for guiding external air, that has exhaust holes in an exhaust direction so that the tubes communicate with ventilation holes formed on a tail pipe main body.
  • DPF diesel particulate filter trap
  • a tail pipe is a pipe which is located in the rear of a heavy equipment muffler to guide exhaust gas, which has substantially stabilized pressure as passing through several partitions, to be discharged in the air.
  • FIG. 1 is a perspective view illustrating a tail pipe in the related art. As shown in FIG. 1 , the shape of the tail pipe in the related art is limited in temperature reduction of hot air from a DPF. That is, due to the structural problem of the tail pipe, the exhaust gas is discharged in the air in a state where heat of the exhaust gas is not efficiently reduced.
  • the DPF is a device which can reduce smoke levels by 80% or more by capturing particulate matters discharged from a diesel engine with a filter to burn the captured particulate matters and then capturing particulate matters again to continue using the captured particulate matters.
  • Heat that is generated from the DPF is discharged to outside through the tail pipe.
  • outer flow of the exhaust gas on the inner surface of the tail pipe can exchange heat with the outside air that is inhaled from a pipe inlet to achieve the effect of temperature reduction, but the center portion of the main flow of the exhaust gas is discharged in the air without exchanging heat with the outside air.
  • the high-temperature exhaust gas may cause fires or burns to occur. Accordingly, there is a need for temperature reduction of the exhaust gas for safety at work.
  • the present invention has been made to solve the above-mentioned problems occurring in the related art, and one subject to be achieved by the present invention is to prepare a tail pipe which can efficiently lower the maximum temperature of an exhaust gas by making the exhaust gas discharged from the tail pipe exchange heat with outside air over the whole area in the tail pipe.
  • an exhaust gas treatment apparatus for a construction machine which is connected to a diesel particulate filter trap (DPF) to discharge exhaust gas from an engine to outside through the DPF, includes a tail pipe main body provided with a plurality of ventilation holes penetratingly formed on the tail pipe main body to allow the outside air to pass through the ventilation holes, and installed on an outlet of the DPF; an exhaust heat dissipation unit provided with a plurality of tubes which respectively communicate with the ventilation holes, and are installed in a horizontal direction of the tail pipe main body; and a plurality of exhaust holes located in a longitudinal direction of the tubes and penetratingly formed in an exhaust gas discharge direction.
  • DPF diesel particulate filter trap
  • Tail pipe main body and the tube may be in a circular shape. It is preferable that three or five exhaust holes are provided in the longitudinal direction of the tubes and in the exhaust gas discharge direction. It is preferable that three tubes are provided in the horizontal direction on the same surface of the tail pipe main body.
  • the maximum temperature of the exhaust gas can be efficiently lowered, and accidents, which may occur due to the high temperature of the exhaust gas during working, can be prevented from occurring.
  • FIG. 1 is a perspective view of a tail pipe in the related art
  • FIG. 2 is a perspective view of a tail pipe according to an embodiment of the present invention.
  • FIG. 3 is a conceptual view explaining temperature reduction effects of exhaust gas according to the present invention.
  • FIGS. 4 a and 4 b are front and side views of a tail pipe according to an embodiment of the present invention.
  • FIG. 2 is a perspective view of a tail pipe according to an embodiment of the present invention.
  • a tail pipe includes a tail pipe main body 100 provided with a plurality of ventilation holes 110 penetratingly formed on the tail pipe main body 100 to allow the outside air to pass through the ventilation holes 110 , and installed on an outlet of a DPF; an exhaust heat dissipation unit 300 provided with a plurality of tubes 200 which respectively communicate with the ventilation holes 110 , and are installed in a horizontal direction of the tail pipe main body 100 ; and a plurality of exhaust holes 210 located in a longitudinal direction of the tubes 200 and penetratingly formed in an exhaust gas discharge direction.
  • the tubes 200 are installed to communicate with the ventilation hOoles 110 of the tail pipe main body 100 , outside air can easily enter into the tubes 200 .
  • the air that has entered into the tubes 200 is mixed with high-temperature exhaust gas through the plurality of exhaust holes which are penetratingly formed in an exhaust direction 400 to be discharged to the outside.
  • the ventilation holes 110 are penetratingly formed on the tail pipe main body 100 to inhale the outside air therethrough.
  • the outside air can be smoothly inhaled into the tail pipe main body 100 .
  • the ventilation holes 110 are penetratingly formed in a line along the side surface of the tail pipe main body 100 as shown in FIG. 2 , they may be formed in any form which can effectively inhale the outside air, e.g., in a zigzag form.
  • the tubes 200 located inside the tail pipe main body 100 are designed so that the tubes 200 can be installed to communicate with the ventilation holes 110 of the tail pipe main body 100 and the outside air can pass through the tubes 200 . Since the tubes 200 have the plurality of exhaust holes 210 , the air inhaled from the outside can be discharged through the exhaust holes 210 penetratingly formed in the exhaust direction 400 . In this case, the air inhaled from the outside is mixed with the high-temperature exhaust gas to reduce the temperature of the exhaust has.
  • FIG. 3 is a conceptual view explaining the temperature reduction effects of the exhaust gas according to the present invention.
  • the high-temperature exhaust gas which is discharged from the DPF, passes through the tubes 200 at high speed, minimum pressure is formed in the exhaust holes 210 which are penetratingly formed on the tubes 200 , and due to this, negative pressure is formed to inhale the outside air.
  • the air that comes from the outside not only is mixed with the high-temperature exhaust gas that is discharged from the DPF but also transfers heat to the tubes 200 , and thus the temperature of the exhaust gas is reduced.
  • FIGS. 4 a and 4 b are front and side views of a tail pipe according to an embodiment of the present invention.
  • Vertical cross-sections of the tail pipe main body 100 and the tube 200 may be in various shapes and may not be specially limited. However, they are normally in a circular shape. It is preferable that three or five exhaust holes 210 are provided in the longitudinal direction of the tubes 200 that is the exhaust gas discharge direction. If the number of exhaust holes is too small or too large, it may be inappropriate to inhale the outside air and to mix the inhaled air with the exhaust gas. It is preferable that three tubes 200 are provided in the horizontal direction on the same surface of the tail pipe main body 100 . If the number of the tubes 200 is smaller than or larger than three, it may be inappropriate to inhale the outside air and to mix the inhaled air with the exhaust gas.
  • the present invention can be used in the exhaust gas treatment apparatus for a construction machine that is installed in the DPF to discharge the exhaust gas, which flows from the engine to the DPF, to the outside.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Exhaust Silencers (AREA)
  • Processes For Solid Components From Exhaust (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Component Parts Of Construction Machinery (AREA)
US13/996,228 2010-12-27 2010-12-27 Exhaust gas treatment device for construction machine Abandoned US20130298539A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/KR2010/009362 WO2012091188A1 (fr) 2010-12-27 2010-12-27 Dispositif de traitement des gaz d'échappement pour engin de chantier

Publications (1)

Publication Number Publication Date
US20130298539A1 true US20130298539A1 (en) 2013-11-14

Family

ID=46383251

Family Applications (1)

Application Number Title Priority Date Filing Date
US13/996,228 Abandoned US20130298539A1 (en) 2010-12-27 2010-12-27 Exhaust gas treatment device for construction machine

Country Status (6)

Country Link
US (1) US20130298539A1 (fr)
EP (1) EP2660438B1 (fr)
JP (1) JP2014504692A (fr)
KR (1) KR20130130760A (fr)
CN (1) CN103270267A (fr)
WO (1) WO2012091188A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140151143A1 (en) * 2011-07-19 2014-06-05 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Construction machine
US10329985B2 (en) 2017-06-27 2019-06-25 Tenneco Automotive Operating Company Inc. Impingement mixer for exhaust treatment
US10913405B2 (en) * 2017-06-29 2021-02-09 Sumitomo Wiring Systems, Ltd. Wire harness
US11208938B2 (en) * 2018-10-22 2021-12-28 Hyundai Motor Company Exhaust tail trim for vehicle

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7302365B2 (ja) * 2019-08-07 2023-07-04 株式会社豊田自動織機 産業車両

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080079179A1 (en) * 2006-08-25 2008-04-03 Lundgreen James M Turbulence induced steam dispersion apparatus
US7703573B2 (en) * 2005-08-05 2010-04-27 Paccar Inc Ported aerodynamic exhaust tailpipe
US20100186395A1 (en) * 2009-01-23 2010-07-29 Volvo Construction Equipment Holding Sweden Ab Apparatus for cooling overheated gas in engine room

Family Cites Families (7)

* Cited by examiner, † Cited by third party
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JPS5225529Y2 (fr) * 1973-10-18 1977-06-10
JPS52128810U (fr) * 1976-03-27 1977-09-30
JPS5462416A (en) * 1977-10-28 1979-05-19 Toyota Motor Corp Exhaust-gas diffuser for internal combustion engine
US5413189A (en) * 1993-09-01 1995-05-09 J. B. Design, Inc. Sound attenuating device and insert
JPH10121945A (ja) * 1996-10-11 1998-05-12 Nissan Motor Co Ltd 内燃機関の排気浄化触媒装置
JPH11257045A (ja) * 1998-03-13 1999-09-21 Hitachi Constr Mach Co Ltd 建設機械の排気装置
US20080087006A1 (en) * 2006-10-11 2008-04-17 International Engine Intellectual Property Company , Llc Tailpipe exhaust gas mixer and method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7703573B2 (en) * 2005-08-05 2010-04-27 Paccar Inc Ported aerodynamic exhaust tailpipe
US20080079179A1 (en) * 2006-08-25 2008-04-03 Lundgreen James M Turbulence induced steam dispersion apparatus
US20100186395A1 (en) * 2009-01-23 2010-07-29 Volvo Construction Equipment Holding Sweden Ab Apparatus for cooling overheated gas in engine room
US8286422B2 (en) * 2009-01-23 2012-10-16 Volvo Construction Equipment Holding Sweden Ab Apparatus for cooling overheated gas in engine room

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140151143A1 (en) * 2011-07-19 2014-06-05 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Construction machine
US9347202B2 (en) * 2011-07-19 2016-05-24 Kobelco Construction Machinery Co., Ltd. Construction machine
US10329985B2 (en) 2017-06-27 2019-06-25 Tenneco Automotive Operating Company Inc. Impingement mixer for exhaust treatment
US10913405B2 (en) * 2017-06-29 2021-02-09 Sumitomo Wiring Systems, Ltd. Wire harness
US11208938B2 (en) * 2018-10-22 2021-12-28 Hyundai Motor Company Exhaust tail trim for vehicle

Also Published As

Publication number Publication date
CN103270267A (zh) 2013-08-28
KR20130130760A (ko) 2013-12-02
EP2660438A1 (fr) 2013-11-06
JP2014504692A (ja) 2014-02-24
WO2012091188A1 (fr) 2012-07-05
EP2660438A4 (fr) 2014-05-14
EP2660438B1 (fr) 2015-12-23

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Legal Events

Date Code Title Description
AS Assignment

Owner name: VOLVO CONSTRUCTION EQUIPMENT AB, SWEDEN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:JANG, JIN-HO;REEL/FRAME:030653/0476

Effective date: 20130619

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION