US20110283687A1 - Exhaust systems for vehicles - Google Patents

Exhaust systems for vehicles Download PDF

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Publication number
US20110283687A1
US20110283687A1 US13/139,325 US200913139325A US2011283687A1 US 20110283687 A1 US20110283687 A1 US 20110283687A1 US 200913139325 A US200913139325 A US 200913139325A US 2011283687 A1 US2011283687 A1 US 2011283687A1
Authority
US
United States
Prior art keywords
treatment unit
cage
exhaust
outlet
gas treatment
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
US13/139,325
Other languages
English (en)
Inventor
Johann Dobler
Robert Heisler
Roman Bucher
Capelle Thorsten
Robert Honzek
Hans Heinle
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.)
AGCO GmbH and Co
Original Assignee
AGCO GmbH and 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 AGCO GmbH and Co filed Critical AGCO GmbH and Co
Assigned to AGCO GMBH reassignment AGCO GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HEISLER, ROBERT, DOBLER, JOHANN, HEINLE, HANS, HONZEK, ROBERT, THORSTEN, CAPELLE, BUCHER, ROMAN
Publication of US20110283687A1 publication Critical patent/US20110283687A1/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
    • F01N13/18—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K13/00—Arrangement in connection with combustion air intake or gas exhaust of propulsion units
    • B60K13/04—Arrangement in connection with combustion air intake or gas exhaust of propulsion units concerning 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
    • 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
    • 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

  • This invention relates to exhaust systems for vehicles, and in particular to such systems for agricultural and/or industrial tractors, which includes and exhaust gas treatment unit to reduce the level of gas contaminants to the legally required levels.
  • an exhaust system for a vehicle having a cab and an internal combustion engine located in an engine compartment including an exhaust gas treatment unit located outside the engine compartment and having an inlet which receives exhaust gases from the engine and an outlet which passes treated gases into a final portion of the exhaust system, the treatment unit being arranged to extend generally vertically with the outlet generally vertically above the inlet and adjacent a corner post of the cab of the vehicle to reduce impact on the visibility from the cab.
  • a cage surrounds the exhaust gas treatment unit and has a support means for attachment to a chassis of the vehicle and an outlet to which the outlet of the treatment unit is connected, and the final portion of the exhaust system is connected with and supported from the cage outlet to relieve the treatment unit from supporting the weight of the final portion of the exhaust system.
  • Such an exhaust system can be fitted with the final portion of the exhaust system extending generally vertically and positioned close to the right-hand A-pillar of the tractor cab where it has only a small impact on visibility.
  • the design of the treatment unit can be simplified and made cheaper and useable in different engine installations or, under certain circumstances, a standard unit kit can be used.
  • the unit is completely isolated by using shock-absorbing and vibration-absorbing means, pressure surges caused by exhaust gas are reduced. Since such treatment units involve catalytic coatings on relatively fragile support materials the fact that the treatment unit is not stressed by the weight or vibrations of the final portion of the exhaust system is an additional advantage.
  • back pressure can be reduced to improve exhaust gas flow.
  • Urea solutions can be injected into the exhaust system further away from the treatment unit and will thus mix fully with the exhaust gases prior to reaching the treatment unit without requiring a mixer which would introduce back pressure.
  • the mixing area is mainly outside the engine compartment, the urea solution is not heated up which would tend to reduce it's efficiency or destroy the Urea. Also by injecting the Urea into the system closer to the hot turbo charger improved operation of the system is obtained.
  • the cage has an upper portion with the cage outlet and a lower portion with the support means, the upper and lower portion being detachably interconnected to give access to the treatment unit for servicing/replacement.
  • the upper and lower portions of the cage may be provided with generally vertically extending fingers which extend towards each other and whose adjacent ends are interconnected to support the upper portion of the cage from the lower portion.
  • the invention also provides an exhaust system for an internal combustion engine for a vehicle, the system including:
  • an exhaust gas treatment unit having an inlet and an outlet
  • a cage which surrounds the exhaust gas treatment unit and has a support means for attachment to a chassis of the vehicle and an outlet to which the outlet of the treatment unit is connected, and
  • FIG. 1 shows an agricultural tractor fitted with an exhaust system in accordance with the present invention adjacent the right-hand front A-pillar of the cab and with part of the engine cover removed for clarity;
  • FIG. 2 shows a plan view of the tractor of FIG. 1 ;
  • FIG. 3 shows a perspective view of the exhaust system of the present invention.
  • FIG. 4 shows an exploded version of FIG. 3 ;
  • FIG. 5 shows a plan view of the exhaust system of FIG. 3 ;
  • FIG. 6 shows a side view of the exhaust system of FIG. 3 ;
  • FIG. 7 shows a section of on the line A-A of FIG. 5 ;
  • FIG. 8 shows details of the attachment of an exhaust gas treatment unit to its surrounding cage
  • FIG. 9 shows details of the independent attachment of the gas treatment unit and final portion of the exhaust system to the surrounding cage.
  • an agricultural tractor 50 has an engine 1 with an exhaust mounted turbo charger 2 with an engine cover 51 , part of which is cut-away in FIGS. 1 and 2 .
  • Turbo charger 2 feeds an exhaust system which includes an engine braking throttle valve 3 , an exhaust temperature sensor 4 and a first NOx sensor 5 . These components are all directly mounted on the engine downstream of the turbo charger 2 .
  • a vibration isolating element 6 is connected by V-clamps 14 to the exhaust portion 7 which includes a urea injection unit 8 .
  • Exhaust section 7 is connected with an inlet 9 a (see FIG. 4 ) of an exhaust treatment unit 9 which includes an oxidation catalysers 9 b , NOx catalysers 9 c and an absorber 9 d (see FIGS. 4 and 7 ) for NOx, HC, and NH 3 .
  • the exhaust gas treatment unit 9 is supported within a cage C in the form of a lower support part 12 and an upper support part 15 .
  • a cage C in the form of a lower support part 12 and an upper support part 15 .
  • Each of these two parts of the cage C is provided with circumferentially spaced axially extending fingers 12 a and 15 a whose adjacent ends are secured together by bolts 15 b .
  • Perforated heat shields 17 bridge the gaps between fingers 12 a and 15 a to prevent accidental contact with the hot exhaust gas treatment unit 9 .
  • the upper support portion 15 has an outlet 15 e ( FIGS. 7 and 9 ) to which an outlet 9 e of the gas treatment unit is connected.
  • the outlet 15 e also supports a final portion 18 of the vehicle exhaust system (which includes a silencer etc) via a further V-clamp 14 .
  • a heat shield 19 surrounds the final portion of the exhaust system to prevent accidental contact with the exhaust.
  • the gas treatment unit 9 is secured to the lower support part 12 by a bolt 21 which extends through a rubber collar 20 within which a metal sleeve 20 a is provided to ensure that, when the bolt 21 is tightened to engage a nut 22 which is welded internally to the gas treatment unit 9 , the correct pre-loading of the rubber sleeve 20 occurs via washer 23 .
  • a bolt 21 which extends through a rubber collar 20 within which a metal sleeve 20 a is provided to ensure that, when the bolt 21 is tightened to engage a nut 22 which is welded internally to the gas treatment unit 9 , the correct pre-loading of the rubber sleeve 20 occurs via washer 23 .
  • several bolts 21 with cooperating nuts 22 and sleeves 20 , 20 a may be used at different locations to resiliently mount the unit 9 on the lower support part 12 .
  • FIGS. 7 and 9 shows the detail of the connection of the outlet 9 d of the gas control unit 9 with the outlet 15 e of the upper support part 15 .
  • Two rectangular cross section rings 24 of knitted metal fabric (or alternatively heat resistant rubber material such as high temperature polysiloxane) are provided. These rings provide a gas tight seal and also some level of vibration isolation of the inner gas treatment unit 9 from the outer support cage C.
  • the output 9 d of the gas treatment unit 9 is provided with a second NOx sensor 10 which can be accessed for maintenance via a cover 16 on the cage C.
  • the electronic control unit for the second NOx sensor is protected by a cover 11 which is carried by the exhaust section 7 , and connected thereto by leads 10 a.
  • the lower support part 12 of the cage C is connected with the tractor chassis by bolts 13 so that the entire weight of the exhaust system is carried by the cage C and not transferred to the inner gas treatment unit 9 which can therefore be of a lighter construction.
  • the gas treatment unit and the final portion of the exhaust system extending generally vertically and adjacent the right-hand A-pillar 52 of the cab 53 of the tractor the effective of this unit on the visibility from the cab is minimized, as can be seen from FIG. 2 , in which the obscured portion of the driver's view marked Z largely corresponds with the field of view which is normally blocked by the front right-hand wheel of the tractor.
  • the exhaust system of the present invention allows the main exhaust treatment unit to be mounted outside the normal engine compartment cover and in a position which does not have a great effect on the visibility from the cab.
  • the construction of the exhaust gas treatment unit can be made considerably lighter and less expensive and can be designed to be useable on more than one tractor model.
  • this enables the installation of a standard buy-in unit kit which can be used on other types of vehicles.
  • exhaust treatment unit is not mounted under the normal engine compartment cover, this leaves space available under the normal engine compartment cover for the mounting of other exhaust gas treatment units which may be required such as particulate filters and also allows existing vehicle engine installations to be easily upgraded to include improved exhaust gas treatment by mounting the gas treatment unit external to the engine compartment.
  • the exhaust system of the present invention is applicable to a wide range of exhaust gas treatment configurations in which the exhaust gas treatment unit may include one or more of the following units namely, an oxidation catalyser, an NOx catalyser and an NOx, HC or NH 3 absorber or diesel particulate filters. Also, although in the embodiment described above, urea injection is used this is not essential and the present invention is applicable to systems which do not inject urea into the exhaust system.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Exhaust Silencers (AREA)
US13/139,325 2008-12-19 2009-12-07 Exhaust systems for vehicles Abandoned US20110283687A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0823124.3 2008-12-19
GB0823124A GB2466483A (en) 2008-12-19 2008-12-19 A vertical exhaust system for a vehicle
PCT/EP2009/066554 WO2010069806A1 (en) 2008-12-19 2009-12-07 Exhaust systems for vehicles

Publications (1)

Publication Number Publication Date
US20110283687A1 true US20110283687A1 (en) 2011-11-24

Family

ID=40343843

Family Applications (1)

Application Number Title Priority Date Filing Date
US13/139,325 Abandoned US20110283687A1 (en) 2008-12-19 2009-12-07 Exhaust systems for vehicles

Country Status (7)

Country Link
US (1) US20110283687A1 (de)
EP (1) EP2379857A1 (de)
CN (1) CN102257254B (de)
BR (1) BRPI0922562A2 (de)
GB (1) GB2466483A (de)
RU (1) RU2508458C2 (de)
WO (1) WO2010069806A1 (de)

Cited By (37)

* Cited by examiner, † Cited by third party
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US20100186395A1 (en) * 2009-01-23 2010-07-29 Volvo Construction Equipment Holding Sweden Ab Apparatus for cooling overheated gas in engine room
US20110284308A1 (en) * 2008-12-19 2011-11-24 Agco Gmbh Exhaust Systems for Vehicles
USD668691S1 (en) * 2012-02-01 2012-10-09 Joseph Vögele AG Cover for an exhaust port of a road construction machine
USD670743S1 (en) * 2011-08-01 2012-11-13 Joseph Vögele AG Exhaust pipe for a road construction machine
US20140020638A1 (en) * 2011-04-07 2014-01-23 Volvo Construction Equipment Ab Exhaust gas temperature reduction device for an engine of construction equipment
US8955312B2 (en) 2013-01-17 2015-02-17 Komatsu Ltd. Reductant aqueous solution mixing device and exhaust aftertreatment device provided with the same
US8991160B2 (en) 2013-01-17 2015-03-31 Komatsu Ltd. Reductant aqueous solution mixing device and exhaust aftertreatment device provided with the same
US20150114747A1 (en) * 2013-10-25 2015-04-30 Iseki & Co., Ltd. Working vehicle
WO2015087929A1 (ja) 2013-12-11 2015-06-18 ヤンマー株式会社 作業車両
US9062589B2 (en) 2013-01-17 2015-06-23 Komatsu Ltd. Reductant aqueous solution mixing device and exhaust aftertreatment device provided with the same
KR20160003653A (ko) 2013-04-26 2016-01-11 얀마 가부시키가이샤 작업 차량
US20160046182A1 (en) * 2014-08-14 2016-02-18 Cnh Industrial America Llc Exhaust system for an off-road vehicle
JP2016065542A (ja) * 2015-12-11 2016-04-28 ヤンマー株式会社 作業車両
JP2016113147A (ja) * 2015-12-11 2016-06-23 ヤンマー株式会社 作業車両
US20160305305A1 (en) * 2015-04-20 2016-10-20 Iseki & Co., Ltd. Tractor
JP2016188645A (ja) * 2016-06-16 2016-11-04 ヤンマー株式会社 作業車両
US9534523B2 (en) 2013-03-28 2017-01-03 Yanmar Co., Ltd. Engine device for work vehicle
WO2017048260A1 (en) * 2015-09-17 2017-03-23 Cummins Emission Solutions Inc. Aftertreatment system mounting assembly
US9869221B2 (en) * 2015-09-18 2018-01-16 Hyundai Motor Company Catalytic converter for vehicle
USD808320S1 (en) * 2015-07-27 2018-01-23 Iseki & Co., Ltd. Exhaust pipe fixture for a work vehicle
US9943805B2 (en) 2015-04-20 2018-04-17 Iseki & Co., Ltd. Tractor
US10071626B2 (en) * 2015-04-28 2018-09-11 Cnh Industrial America Llc Exhaust after-treatment mounting arrangement
WO2018180028A1 (ja) 2017-03-30 2018-10-04 ヤンマー株式会社 トラクタ
USD832755S1 (en) * 2015-07-27 2018-11-06 Iseki & Co., Ltd. Exhaust pipe for a work vehicle
US20190284979A1 (en) * 2014-12-31 2019-09-19 Cummins Emission Solutions, Inc. Compact side inlet and outlet exhaust aftertreatment system
US10480378B2 (en) * 2016-07-26 2019-11-19 Mazda Motor Corporation Engine exhaust structure
JP2020152374A (ja) * 2018-12-18 2020-09-24 井関農機株式会社 トラクタ
USD901547S1 (en) * 2019-05-30 2020-11-10 Deere & Company Exhaust cover
USD912102S1 (en) * 2019-05-30 2021-03-02 Deere & Company Exhaust cover
US10989096B2 (en) 2014-12-31 2021-04-27 Cummins Emission Solutions, Inc. Close coupled single module aftertreatment system
JP2022017436A (ja) * 2018-12-18 2022-01-25 井関農機株式会社 トラクタ
KR20220000417U (ko) 2020-08-10 2022-02-17 이주형 조립이 용이한 떠구지
USD966343S1 (en) * 2019-10-16 2022-10-11 Deere & Company Air intake tower
USD967199S1 (en) * 2019-10-16 2022-10-18 Deere & Company Air intake tower
USD1032664S1 (en) * 2022-04-14 2024-06-25 Caterpillar Inc. Filter housing and pipework for an engine
USD1032665S1 (en) * 2022-04-14 2024-06-25 Caterpillar Inc. Filter housing and pipework for an engine
USD1048103S1 (en) 2023-06-16 2024-10-22 Deere & Company Air intake tower

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US9228461B2 (en) * 2012-07-31 2016-01-05 Deere & Company Bi-directional tractor exhaust system
DE102013225767A1 (de) * 2013-12-12 2015-06-18 Deere & Company Landwirtschaftliches Arbeitsfahrzeug
DE102014106789A1 (de) 2014-05-14 2015-11-19 CLAAS Tractor S.A.S Landwirtschaftliches Fahrzeug
CN106414928B (zh) * 2014-05-19 2019-01-15 赛迈道依茨-法尔意大利股份有限公司 在装备有内燃机的车辆中使用的用于处理尾气的系统
DE102017124942A1 (de) 2017-10-25 2019-04-25 Agco International Gmbh Fahrzeug, insbesondere geländegängiges Fahrzeug, mit einer Abgasnachbehandlungseinrichtung
DE102018111859A1 (de) * 2018-05-17 2019-11-21 Claas Tractor Sas Abgasstranganordnung
GB201915858D0 (en) 2019-10-31 2019-12-18 Agco Int Gmbh Exhaust after treatment cooling system
WO2021163383A1 (en) 2020-02-11 2021-08-19 Tamagni Richard Blake System and method for deterrence of catalytic converter theft
JP7143365B2 (ja) * 2020-05-20 2022-09-28 ヤンマーパワーテクノロジー株式会社 トラクタ

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Cited By (59)

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Publication number Priority date Publication date Assignee Title
US20110284308A1 (en) * 2008-12-19 2011-11-24 Agco Gmbh Exhaust Systems for Vehicles
US8739918B2 (en) * 2008-12-19 2014-06-03 Agco Gmbh Exhaust systems for vehicles
US8286422B2 (en) * 2009-01-23 2012-10-16 Volvo Construction Equipment Holding Sweden Ab Apparatus for cooling overheated gas in engine room
US20100186395A1 (en) * 2009-01-23 2010-07-29 Volvo Construction Equipment Holding Sweden Ab Apparatus for cooling overheated gas in engine room
US20140020638A1 (en) * 2011-04-07 2014-01-23 Volvo Construction Equipment Ab Exhaust gas temperature reduction device for an engine of construction equipment
USD670743S1 (en) * 2011-08-01 2012-11-13 Joseph Vögele AG Exhaust pipe for a road construction machine
USD668691S1 (en) * 2012-02-01 2012-10-09 Joseph Vögele AG Cover for an exhaust port of a road construction machine
US9062589B2 (en) 2013-01-17 2015-06-23 Komatsu Ltd. Reductant aqueous solution mixing device and exhaust aftertreatment device provided with the same
US8955312B2 (en) 2013-01-17 2015-02-17 Komatsu Ltd. Reductant aqueous solution mixing device and exhaust aftertreatment device provided with the same
US8991160B2 (en) 2013-01-17 2015-03-31 Komatsu Ltd. Reductant aqueous solution mixing device and exhaust aftertreatment device provided with the same
US9534523B2 (en) 2013-03-28 2017-01-03 Yanmar Co., Ltd. Engine device for work vehicle
KR20160003653A (ko) 2013-04-26 2016-01-11 얀마 가부시키가이샤 작업 차량
US20160082830A1 (en) * 2013-04-26 2016-03-24 Yanmar Co., Ltd. Work vehicle
KR20210066946A (ko) 2013-04-26 2021-06-07 얀마 파워 테크놀로지 가부시키가이샤 작업 차량
US9855837B2 (en) * 2013-04-26 2018-01-02 Yanmar Co., Ltd. Work vehicle
KR20200091944A (ko) 2013-04-26 2020-07-31 얀마 파워 테크놀로지 가부시키가이샤 작업 차량
US9248734B2 (en) * 2013-10-25 2016-02-02 Iseki & Co., Ltd. Working vehicle
US20150114747A1 (en) * 2013-10-25 2015-04-30 Iseki & Co., Ltd. Working vehicle
WO2015087929A1 (ja) 2013-12-11 2015-06-18 ヤンマー株式会社 作業車両
KR20160096586A (ko) 2013-12-11 2016-08-16 얀마 가부시키가이샤 작업 차량
US9783042B2 (en) 2013-12-11 2017-10-10 Yanmar Co., Ltd. Working vehicle
US9688134B2 (en) * 2014-08-14 2017-06-27 Cnh Industrial America Llc Exhaust system for an off-road vehicle
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GB0823124D0 (en) 2009-01-28
BRPI0922562A2 (pt) 2015-12-15
WO2010069806A1 (en) 2010-06-24
RU2508458C2 (ru) 2014-02-27
CN102257254B (zh) 2015-05-13
EP2379857A1 (de) 2011-10-26
RU2011129821A (ru) 2013-01-27
CN102257254A (zh) 2011-11-23
GB2466483A (en) 2010-06-30

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