WO2020043222A1 - Système du refroidissement supplémentaire du collecteur d'échappement - Google Patents

Système du refroidissement supplémentaire du collecteur d'échappement Download PDF

Info

Publication number
WO2020043222A1
WO2020043222A1 PCT/CZ2019/000041 CZ2019000041W WO2020043222A1 WO 2020043222 A1 WO2020043222 A1 WO 2020043222A1 CZ 2019000041 W CZ2019000041 W CZ 2019000041W WO 2020043222 A1 WO2020043222 A1 WO 2020043222A1
Authority
WO
WIPO (PCT)
Prior art keywords
exhaust manifold
cylinder head
exhaust
opening
cooling
Prior art date
Application number
PCT/CZ2019/000041
Other languages
German (de)
English (en)
Inventor
Jan Hradiský
Jan MERTLÍK
Aleš LEMPERA
Marek SLOVÁK
Original Assignee
Skoda Auto A.S.
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 Skoda Auto A.S. filed Critical Skoda Auto A.S.
Priority to CN201980056504.6A priority Critical patent/CN112601878B/zh
Publication of WO2020043222A1 publication Critical patent/WO2020043222A1/fr

Links

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
    • F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
    • 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
    • F01N13/1827—Sealings specially adapted for exhaust systems
    • 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
    • F01N3/04—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids
    • F01N3/043—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids without contact between liquid and exhaust gases
    • F01N3/046—Exhaust manifolds with cooling jacket
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/12—Arrangements for cooling other engine or machine parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/20—Cooling circuits not specific to a single part of engine or machine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/243—Cylinder heads and inlet or exhaust manifolds integrally cast together
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/26—Cylinder heads having cooling means
    • F02F1/36—Cylinder heads having cooling means for liquid cooling
    • F02F1/40—Cylinder heads having cooling means for liquid cooling cylinder heads with means for directing, guiding, or distributing liquid stream 
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the invention relates to additional cooling of the exhaust manifold between the cylinder head and the catalytic converter in order to avoid internal cooling with the fuel and consequently to reduce fuel consumption and emissions.
  • Piston internal combustion engine which fulfills the function of the drive unit by converting part of the internal energy of the fuel into kinetic energy and heat. This is due to the gas expansion due to the
  • the catalytic converter was located further away from the engine, mostly in the middle area of the vehicle chassis, which solved the need for exhaust gas cooling for the catalytic converter to function properly with a long exhaust manifold. In some vehicle models, however, this can happen Design view can not be achieved, so the catalyst is located in the engine compartment, i.e. in the immediate vicinity of the engine.
  • the coolant circulating in the engine is used for exhaust gas cooling, so that part of the exhaust manifold is integrated in the cylinder head and thus shares the cooling system with the engine.
  • This solution does not achieve the required effectiveness, which is why internal cooling with fuel is used as additional cooling, where a fuel-rich mixture is injected into the cylinders when the engine is under greater load, with the excess fuel not serving as a drive, but for cooling the exhaust gases after leaving the cylinders , which is still ineffective, uneconomical with regard to vehicle operation and counterproductive with regard to efforts to reduce emissions, and is also subject to legal restrictions.
  • US20120198841 describes a system for cooling the exhaust gases flowing through the exhaust manifolds by means of a liquid flowing in the external cooling system.
  • This system can be connected to the engine cooling system, but with the help of an external line directly connected to the radiator, which is very demanding, expensive and complex from the construction point of view.
  • the Cooled portion of the conduit described in this patent is currently commonly integrated into the cylinder head and cooled by the engine cooling system.
  • the task is partially solved by the system of additional cooling of the exhaust manifold.
  • the representation of the advantage is that the system of additional cooling of the exhaust manifold, which comprises a cylinder head with a cylinder head flange, the exhaust manifold and the catalytic converter, where the exhaust manifold is connected with its first end to the cylinder head flange and with its second end to the catalytic converter characterized in that the cylinder head flange has at least one inlet opening of the cylinder head connected to the central engine cooling system and one exhaust gas opening of the cylinder head connected to the engine exhaust system, the exhaust manifold comprising a casing of the exhaust manifold which has at least one cooling duct of the exhaust manifold, the first end of the exhaust manifold at least an inlet opening of the exhaust manifold connected to the cooling ducts of the exhaust manifold, at least one outlet opening of the exhaust manifold connected to the cooling ducts of the exhaust manifold, and at least one exhaust opening of the exhaust manifold mmers,
  • Exhaust manifold is connected via a seal so that the cylinder head flange abuts the seal, which has at least one inlet opening of the seal, at least one outlet opening of the seal and at least one exhaust opening of the seal and, at the same time, the exhaust manifold bears with its first end against the gasket such that the inlet opening of the cylinder head abuts the inlet opening of the gasket, the outlet opening of the cylinder head abuts the outlet opening of the gasket, the exhaust opening of the cylinder head abuts the exhaust opening of the gasket, and at the same time the inlet opening of the seal to the inlet opening (18) of the
  • the cylinder head flange comprises four inlet openings of the cylinder head and two outlet openings of the cylinder head, the gasket four inlet openings of the gasket and two outlet openings of the gasket and the exhaust manifold, four inlet openings of the exhaust manifold and two outlet openings of the exhaust manifold.
  • Fig. 1 shows the passage of the exhaust gases through the exhaust manifold from the cylinder head to the catalyst without additional cooling of the exhaust manifold
  • Fig. 2 shows the passage of the exhaust gases through the exhaust manifold from the cylinder head to the catalyst with the system of additional cooling of the exhaust manifold
  • Fig. 3 is an isometric view of the cylinder head and the flange of the additional cooling of the exhaust manifold
  • Fig. 4 is an illustration of the seal of the system of additional cooling of the exhaust manifold
  • Fig. 5 is a sectional view of the side view of the system of additional cooling of the exhaust manifold and the flow direction of the coolant
  • Fig. 6 is a sectional view of the plan of the system of additional cooling of the exhaust manifold and the representation of the flow direction of the
  • Fig. 7 is an isometric view of the system of additional cooling of the exhaust manifold without a cylinder head and the representation of the flow direction of the
  • Fig. 8 is an illustration of the contact surface of the casing of the exhaust manifold with the seal of the system of additional cooling of the exhaust manifold
  • Fig. 9 is an isometric view of the casing of the exhaust manifold.
  • Fig. 10 is a schematic representation of the inlet and outlet point of the coolant and its trajectory in a side view
  • Fig. 1 1 is a schematic representation of the trajectory of the coolant in the cylinder head and around the exhaust manifold in a plan view
  • a motor vehicle that uses the combustion of a mixture of fuel and air in the engine cylinders to convert to mechanical energy.
  • Exhaust gases are formed when the mixture is burned. These exhaust gases are discharged through an exhaust system of the engine to the catalyst 3, where the pollutants are converted to less toxic substances, see. Fig. 1.
  • the combustion of an ideal mixture of fuel and air in the cylinders is required, as a result of which only pollutants and no fuel get into the exhaust system, and a temperature of the exhaust gases flowing through below a certain value.
  • the ideal temperature of the exhaust gases for the catalytic converter 3 to function correctly is around 400 ° C.
  • a cylinder head flange 16 on the cylinder head 1.
  • At least one inlet opening 9 of the cylinder head, at least one outlet opening 10 of the cylinder head and at least one exhaust gas opening 12 of the cylinder head must be present on the cylinder head flange 16.
  • a seal 4 is attached to the cylinder head flange 16.
  • the first exhaust gas manifold_2 is connected to the seal 4, see FIG. 5, 6 and 7.
  • Part of the exhaust manifold 2 is a casing 6 of the exhaust manifold, under which cooling channels 17 of the exhaust manifold are located.
  • This exhaust manifold 2 can be manufactured, for example, as an aluminum casting.
  • the cooling liquid flows through the cooling channels 17 of the exhaust manifold, see FIG. 5 and 6, which further cools the exhaust gases flowing through.
  • the exhaust gases flow out of the cylinders via the valves into the exhaust gas passages 5 in the cylinder head 1. From the exhaust gas channels 5, the exhaust gases pass through the exhaust gas opening 12 of the cylinder head, the exhaust gas opening 14 of the gasket and the exhaust gas opening 21 of the exhaust manifold into the exhaust manifold 2.
  • the exhaust manifold 2 passes the exhaust gases on to the catalytic converter, where chemical reactions take place.
  • the exhaust gases are cooled in front of the catalyst 3 to the required temperature, which does not reduce the effectiveness of the catalyst 3.
  • the cooling channels 17 of the exhaust manifold in the casing 6 of the exhaust manifold, through which the cooling liquid flows, serve for this cooling.
  • the casing 6 of the exhaust manifold forms a functionally
  • the cooling liquid from the cooling channels 20 of the cylinder head guided under the exhaust gas channels 5 flows in the lower and lateral area of the cylinder head flange 16, see. 10 and 11, through the inlet openings 7 of the cylinder head, inlet openings 7 of the seal and inlet openings 18 of the exhaust manifold into the cooling channels 17 of the exhaust manifold.
  • the cooling liquid flows through to the catalytic converter 3.
  • the catalytic converter 3 it turns through 180 ° and continues in cooling ducts 17 of the exhaust manifold in the direction of the upper part of the cylinder head flange 16.
  • the outlet opening 19 of the exhaust manifold the outlet opening 8 of the seal and the outlet opening 10 of the cylinder head, the cooling liquid flows into the cylinder head 1, where it connects to the cooling channels 20 of the cylinder head above the exhaust gas channels 5.
  • the exhaust manifold 2 forms a functional unit with the cylinder head 1 from the perspective of the flow of the coolant.
  • the cooling liquid precisely copies the contour of the exhaust ducts 5 and the exhaust manifold 2 up to the catalytic converter.
  • the cooling channels 17 of the exhaust manifold under the casing 6 of the Exhaust manifold and the direction of flow of the coolant therein conveniently connects to the water circuit of the cylinder head 1 and the cooling channels 20 of the cylinder head, whereby the original principle of cooling the exhaust channels 5 in the cylinder head 1, where connecting holes for the overflow from the lower part of the cooling channels 20 Cylinder head used in the upper part of the cooling channels 20 of the cylinder head is perfected.
  • the drill holes had to be drilled through the upper part of the cylinder head 1, which created an opening through which the coolant would flow out of the cylinder head 1 to the outside. This opening subsequently had to be additionally blocked during assembly operations.
  • these connecting holes have no purpose, so they are not part of the construction of the cylinder head 1 according to this solution.
  • the system of additional cooling of the exhaust manifold described above can be used in any means of transport with an internal combustion engine where additional cooling of the exhaust gases is necessary.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Silencers (AREA)

Abstract

L'invention concerne un système de refroidissement supplémentaire du collecteur d'échappement, qui comprend une culasse avec une bride de culasse, un collecteur d'échappement et un catalyseur, où le collecteur d'échappement est connecté par sa première extrémité à la bride de culasse et par sa deuxième extrémité au catalyseur de telle façon que les ouvertures d'admission de la culasse et les ouvertures de sortie de la culasse sont connectées sur la bride de culasse au système de refroidissement de moteur central, et que le collecteur d'échappement, qui présente une enveloppe du collecteur d'échappement comprenant au moins un canal de refroidissement du collecteur d'échappement, est connecté par sa première extrémité à la bride de culasse de telle façon que les ouvertures d'admission du collecteur d'échappement sont connectées au canaux de refroidissement du collecteur d'échappement et les ouvertures de sortie du collecteur d'échappement sont connectées aux ouvertures d'admission de la culasse et aux ouvertures de sortie de la culasse.
PCT/CZ2019/000041 2018-08-30 2019-08-30 Système du refroidissement supplémentaire du collecteur d'échappement WO2020043222A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201980056504.6A CN112601878B (zh) 2018-08-30 2019-08-30 排气歧管附加冷却系统

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CZ2018-440A CZ2018440A3 (cs) 2018-08-30 2018-08-30 Sestava chlazení výfukového svodu motoru pozemních vozidel
CZPV2018-440 2018-08-30

Publications (1)

Publication Number Publication Date
WO2020043222A1 true WO2020043222A1 (fr) 2020-03-05

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PCT/CZ2019/000041 WO2020043222A1 (fr) 2018-08-30 2019-08-30 Système du refroidissement supplémentaire du collecteur d'échappement

Country Status (3)

Country Link
CN (1) CN112601878B (fr)
CZ (1) CZ2018440A3 (fr)
WO (1) WO2020043222A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11658242B2 (en) 2019-08-15 2023-05-23 Micron Technology, Inc. Integrated assemblies containing diffusion alleviating two-dimensional materials

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4638632A (en) 1980-03-20 1987-01-27 Deutsche Forschungs-Und Versuchsanstalt Fur Luft-Und Raumfahrt E.V. Exhaust gas pipe cooled by ambient air
US5020319A (en) * 1987-06-09 1991-06-04 Ngk Spark Plug Co., Ltd. Hollow heat-resisting body assembly for internal combustion engine
US5788547A (en) 1995-08-02 1998-08-04 Yamaha Hatsudoki Kabushiki Kaisha Exhaust pipe cooling system for watercraft
US6141958A (en) 1998-12-31 2000-11-07 Voss; Randy E. Exhaust cooling system for vehicles
JP2009180109A (ja) * 2008-01-29 2009-08-13 Toyota Industries Corp 排気マニホールド一体型シリンダヘッドの冷却構造
FR2936282A1 (fr) * 2008-09-23 2010-03-26 Peugeot Citroen Automobiles Sa Culasse de moteur a combustion interne integrant un collecteur d'echappement
US20120198841A1 (en) 2009-10-14 2012-08-09 Wescast Industries, Inc. Liquid-cooled exhaust manifold
EP2497931A1 (fr) * 2011-03-10 2012-09-12 Fiat Powertrain Technologies S.p.A. Tête de cylindre pour moteur de combustion interne, avec tubulure d'échappement intégrée et sous-groupes de conduits d'échappement fusionnés en portions de collecteur qui sont superposés et mis à l'écart les uns des autres
US20130055971A1 (en) * 2011-09-07 2013-03-07 Ford Global Technologies, Llc Integrated exhaust cylinder head

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CA2232761C (fr) * 1997-03-31 2006-05-23 Honda Giken Kogyo Kabushiki Kaisha .) Moteur deux temps
JP2004132308A (ja) * 2002-10-11 2004-04-30 Honda Motor Co Ltd 水冷エンジンを搭載した船外機
DE102010015543A1 (de) * 2010-04-20 2011-10-20 Gm Global Technology Operations Llc (N.D.Ges.D. Staates Delaware) Wasserkühlsystem eines Verbrennungsmotors, Fahrzeug mit dem Wasserkühlsystem und Verfahren zum Betreiben eines Wasserkühlsystems
CN104763510B (zh) * 2014-11-27 2017-06-23 宁波吉利罗佑发动机零部件有限公司 一种回收排气歧管热量实现发动机增压的系统
CN204457983U (zh) * 2015-02-10 2015-07-08 长城汽车股份有限公司 发动机的排气歧管与冷却水套结构及排气与冷却系统
CN104696056B (zh) * 2015-03-03 2017-11-03 江苏上淮动力有限公司 一种快速热机的方法
CN104775888B (zh) * 2015-04-08 2017-02-01 玉柴联合动力股份有限公司 一种水套式排气歧管及具有其的发动机
CN207145048U (zh) * 2017-08-03 2018-03-27 上汽通用汽车有限公司 发动机排气岐管

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4638632A (en) 1980-03-20 1987-01-27 Deutsche Forschungs-Und Versuchsanstalt Fur Luft-Und Raumfahrt E.V. Exhaust gas pipe cooled by ambient air
US5020319A (en) * 1987-06-09 1991-06-04 Ngk Spark Plug Co., Ltd. Hollow heat-resisting body assembly for internal combustion engine
US5788547A (en) 1995-08-02 1998-08-04 Yamaha Hatsudoki Kabushiki Kaisha Exhaust pipe cooling system for watercraft
US6141958A (en) 1998-12-31 2000-11-07 Voss; Randy E. Exhaust cooling system for vehicles
JP2009180109A (ja) * 2008-01-29 2009-08-13 Toyota Industries Corp 排気マニホールド一体型シリンダヘッドの冷却構造
FR2936282A1 (fr) * 2008-09-23 2010-03-26 Peugeot Citroen Automobiles Sa Culasse de moteur a combustion interne integrant un collecteur d'echappement
US20120198841A1 (en) 2009-10-14 2012-08-09 Wescast Industries, Inc. Liquid-cooled exhaust manifold
EP2497931A1 (fr) * 2011-03-10 2012-09-12 Fiat Powertrain Technologies S.p.A. Tête de cylindre pour moteur de combustion interne, avec tubulure d'échappement intégrée et sous-groupes de conduits d'échappement fusionnés en portions de collecteur qui sont superposés et mis à l'écart les uns des autres
US20130055971A1 (en) * 2011-09-07 2013-03-07 Ford Global Technologies, Llc Integrated exhaust cylinder head

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11658242B2 (en) 2019-08-15 2023-05-23 Micron Technology, Inc. Integrated assemblies containing diffusion alleviating two-dimensional materials

Also Published As

Publication number Publication date
CN112601878A (zh) 2021-04-02
CZ308286B6 (cs) 2020-04-15
CN112601878B (zh) 2022-06-07
CZ2018440A3 (cs) 2020-04-15

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