EP2032827A1 - Dispositif d'echappement comportant une culasse munie d'un collecteur d'echappement integre decouple thermique - Google Patents
Dispositif d'echappement comportant une culasse munie d'un collecteur d'echappement integre decouple thermiqueInfo
- Publication number
- EP2032827A1 EP2032827A1 EP07788989A EP07788989A EP2032827A1 EP 2032827 A1 EP2032827 A1 EP 2032827A1 EP 07788989 A EP07788989 A EP 07788989A EP 07788989 A EP07788989 A EP 07788989A EP 2032827 A1 EP2032827 A1 EP 2032827A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder head
- exhaust
- cavity
- bore
- engine
- 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.)
- Granted
Links
- 238000002485 combustion reaction Methods 0.000 claims abstract description 14
- 239000007789 gas Substances 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000011109 contamination Methods 0.000 abstract 1
- 239000003344 environmental pollutant Substances 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000006854 communication Effects 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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
- F01N13/102—Other arrangements or adaptations of exhaust conduits of exhaust manifolds having thermal insulation
-
- 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
- F01N13/14—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 thermal insulation
- F01N13/141—Double-walled exhaust pipes or housings
- F01N13/143—Double-walled exhaust pipes or housings with air filling the space between both walls
-
- 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
- F01N13/16—Selection of particular materials
-
- 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
- F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
- F02F1/4264—Shape or arrangement of intake or exhaust channels in cylinder heads of exhaust channels
-
- 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
- F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
- F01N13/1844—Mechanical joints
- F01N13/185—Mechanical joints the connection being realised by deforming housing, tube, baffle, plate, or parts thereof
-
- 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
- F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
- F02F1/4264—Shape or arrangement of intake or exhaust channels in cylinder heads of exhaust channels
- F02F2001/4278—Exhaust collectors
Definitions
- the invention relates to an exhaust system for a multi-cylinder internal combustion engine of a motor vehicle comprising a cylinder head of said engine in which exhaust pipes are arranged, a first end of each of which is connected to a combustion chamber of said engine. and whose second end opens into a cavity or plenum of an exhaust manifold integrated in the cylinder head, an outlet pipe is connected externally to a device for cleaning the exhaust gases of a vehicle exhaust line.
- the exhaust devices comprise exhaust ducts formed in the cylinder head of the engine which coincide with collector ducts arranged opposite the exhaust ducts.
- the collector comprises at least one outlet duct which is connected to an exhaust line of the motor vehicle.
- Document DE-A-3.81 5.408 describes a collector integrally formed in the breech and coming from a foundry therewith.
- the invention proposes a device of the type described above comprising a collector integrated in the cylinder head of the motor and mu and thermal decoupling means with respect to said cu lasse.
- the invention proposes a collector of the type described above, characterized in that characterized in that the cavity or plenum of the collector is formed in an element attached to the lower part of the yoke and that said The element is thermally decoupled from the battery by the intermediary of thermal decoupling means.
- the second ends of the exhaust ducts open into a receiving bore formed in the casing which receives a tubular insert which is attached to the inside of the bowl to form the insert, which comprises com munication ports with the second ends of the exhaust ducts, and which has the outlet duct opening out to the outside of the cu lasse.
- the tubular insert is made of stainless steel, the tubular insert is mounted without clearance in the receiving bore of the casing,
- the thermal decoupling means are arranged in the cylinder head around the tubular section and at least between two consecutive exhaust ducts; the thermal decoupling means comprise at least one cavity which is formed in the material of the cu lasse around the receiving bore and which opens into said bore, the device comprises a cavity which is arranged around the receiving bore between each pair of consecutive exhaust pipes, and a cavity which is arranged around the receiving bore between an end exhaust pipe and a outer end face of the bolt,
- FIG. 1 shows a cylinder head 10 for an exhaust device produced according to the invention.
- exhaust ducts 1 2 are arranged in the cylinder head 10.
- a first end 14 of each duct 1 2 is connected to a combustion chamber 1 6 of the engine and the second end 1 8 of each duct 12 opens into a cavity 20 or plenum of an exhaust manifold 22 integrated with the cylinder head 10.
- An outlet pipe 24 of the manifold 22 is connected externally to a device (not shown) for cleaning up the exhaust gases of a line of exhaust (not shown) of the vehicle.
- the cylinder head 10 comprises between each combustion chamber 16 cavities 30 for circulating a coolant of the engine.
- the cavity 20 or plenum m collector 22 is formed in an element 26 which is attached to the inside of the cylinder head 10 and said element 26 is thermally decoupled from the cylinder head 1 0 via means 28 for thermal decoupling. More particularly, the second ends 18 of the exhaust ducts 1 2 open into a receiving bore 32 which is formed in the tub 10, and this bore 32 receives a tubular insert 26 forming the attached element 26. which is attached to the inside of the cu lasse, which has orifices 34 communication with the second ends 1 8 exhaust ducts 12, and which has the outlet conduit 24 opening out of the cylinder head 1 0.
- the tubular insert 26 is made of stainless steel, because this material has thermal expansion characteristics to ensure a satisfactory seal when connected to the depollution device, regardless of its temperature. It should be noted that this characteristic is not limiting of the invention, and that any other material having similar characteristics could be used for the proper implementation of the invention.
- the tubular insert 26 is mounted without play in the bore 32 for receiving the cylinder head 10.
- the tubular insert 26 is for example fitted into the bore 32 according to a type adjustment tight.
- the thermal decoupling means 28 are arranged in the cylinder head around the tubular insert 26 and at least between two consecutive exhaust ducts 12.
- the thermal decoupling means 28 comprise at least one cavity 28 which is formed in the material of the yoke 10 around the receiving bore 32, and which opens into said bore 32. This cavity is filled with air and thus allows a thermal decoupling of the insert 26 with respect to the cylinder head, avoiding that the heat of the cylinder head 1 0 is communicated to the insert 26 by conduction.
- the device comprises a cavity 28 which is arranged around the receiving bore 32 between each pair of consecutive exhaust pipes 1 2, and a cavity 28 which is arranged around the receiving bore 32 between an end exhaust pipe 12 and an end outer face 36 of the cylinder head 10.
- each cavity 28 is made during the molding of the cylinder head 10.
- the invention therefore makes it possible to benefit from a device comprising a manifold 26 attached to the cylinder head 1 0 as close as possible to the combustion chambers 12, which makes it possible to optimize the performance of a pollution control device connected to its outlet duct. 24, and which is free from the disadvantages of integrated collectors known from the state of the art due to its thermal decoupling vis-à-vis the cylinder head 10.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0652631A FR2902827B1 (fr) | 2006-06-23 | 2006-06-23 | Dispositif d'echappement comportant une culasse munie d'un collecteur d'echappement integre decouple thermiquement |
PCT/FR2007/051423 WO2007148000A1 (fr) | 2006-06-23 | 2007-06-12 | Dispositif d'echappement comportant une culasse munie d'un collecteur d'echappement integre decouple thermique |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2032827A1 true EP2032827A1 (fr) | 2009-03-11 |
EP2032827B1 EP2032827B1 (fr) | 2009-12-30 |
Family
ID=37496874
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07788989A Active EP2032827B1 (fr) | 2006-06-23 | 2007-06-12 | Dispositif d'echappement comportant une culasse munie d'un collecteur d'echappement integre decouple thermique |
Country Status (9)
Country | Link |
---|---|
US (1) | US20090229248A1 (fr) |
EP (1) | EP2032827B1 (fr) |
JP (1) | JP2009541656A (fr) |
AT (1) | ATE453796T1 (fr) |
DE (1) | DE602007004112D1 (fr) |
ES (1) | ES2336629T3 (fr) |
FR (1) | FR2902827B1 (fr) |
RU (1) | RU2439356C2 (fr) |
WO (1) | WO2007148000A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009001542A1 (de) | 2009-03-13 | 2010-10-07 | Ford Global Technologies, LLC, Dearborn | Zylinderkopf für einen Saugmotor und Verwendung eines derartigen Zylinderkopfes |
FR3084109B1 (fr) | 2018-07-23 | 2022-08-19 | Renault Sas | Dispositif d’isolation thermique a l’echappement de moteur thermique |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1322495A (en) * | 1969-07-18 | 1973-07-04 | Ricardo & Co Engineers | Exhaust passages in internal combustion engines |
US3633368A (en) * | 1970-08-12 | 1972-01-11 | Du Pont | Exhaust gas reactor |
JPS5548746Y2 (fr) * | 1975-12-27 | 1980-11-14 | ||
GB1553584A (en) * | 1976-04-08 | 1979-09-26 | Perkins Engines Ltd | Inlet and exhaust manifold assembly for an internal combustion engine |
US4759181A (en) * | 1987-02-02 | 1988-07-26 | Biritz Ronald A | Manifold, apparatus and system for exhaust transfer and cooling of V-type marine engines |
AT395637B (de) * | 1987-05-14 | 1993-02-25 | Steyr Daimler Puch Ag | Abgaseinrichtung fuer mehrzylinder-brennkraftmaschinen |
AT397416B (de) * | 1987-05-22 | 1994-04-25 | Steyr Daimler Puch Ag | Abgaseinrichtung für mehrzylinder- brennkraftmaschinen |
AT397417B (de) * | 1988-05-02 | 1994-04-25 | Avl Verbrennungskraft Messtech | Abgassammelrohr einer mehrzylinder- brennkraftmaschine |
JP2901097B2 (ja) * | 1991-02-13 | 1999-06-02 | 三信工業株式会社 | 船外機の排気浄化装置 |
DE4206249C1 (fr) * | 1992-02-28 | 1993-06-03 | Mtu Friedrichshafen Gmbh | |
DE4207048C1 (en) * | 1992-03-06 | 1993-06-03 | Mtu Friedrichshafen Gmbh | Double wall exhaust pipe for IC engine - has two types of tube sections, with different profiles, with c-profile sections supported on stop edges of inner wall |
US5331930A (en) * | 1993-04-05 | 1994-07-26 | Mcwhorter Edward M | Univalve engine |
DE4342572C1 (de) * | 1993-12-14 | 1994-11-24 | Mtu Friedrichshafen Gmbh | Abgasanlage für eine aufgeladene Brennkraftmaschine |
FR2738289B1 (fr) * | 1995-08-31 | 1997-10-17 | Renault | Dispositif d'echappement pour moteur a combustion interne |
US5829249A (en) * | 1996-01-19 | 1998-11-03 | Outboard Marine Corporation | Internal combustion engine with exhaust passage and reactor having a common wall |
-
2006
- 2006-06-23 FR FR0652631A patent/FR2902827B1/fr not_active Expired - Fee Related
-
2007
- 2007-06-12 EP EP07788989A patent/EP2032827B1/fr active Active
- 2007-06-12 DE DE602007004112T patent/DE602007004112D1/de active Active
- 2007-06-12 AT AT07788989T patent/ATE453796T1/de not_active IP Right Cessation
- 2007-06-12 US US12/306,141 patent/US20090229248A1/en not_active Abandoned
- 2007-06-12 ES ES07788989T patent/ES2336629T3/es active Active
- 2007-06-12 WO PCT/FR2007/051423 patent/WO2007148000A1/fr active Application Filing
- 2007-06-12 JP JP2009517343A patent/JP2009541656A/ja not_active Ceased
- 2007-06-12 RU RU2009102073/06A patent/RU2439356C2/ru active
Non-Patent Citations (1)
Title |
---|
See references of WO2007148000A1 * |
Also Published As
Publication number | Publication date |
---|---|
ATE453796T1 (de) | 2010-01-15 |
WO2007148000A1 (fr) | 2007-12-27 |
RU2009102073A (ru) | 2010-07-27 |
ES2336629T3 (es) | 2010-04-14 |
US20090229248A1 (en) | 2009-09-17 |
JP2009541656A (ja) | 2009-11-26 |
DE602007004112D1 (de) | 2010-02-11 |
FR2902827A1 (fr) | 2007-12-28 |
FR2902827B1 (fr) | 2012-09-28 |
EP2032827B1 (fr) | 2009-12-30 |
RU2439356C2 (ru) | 2012-01-10 |
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