CN104870769A - Exhaust member for an internal combustion engine - Google Patents

Exhaust member for an internal combustion engine Download PDF

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Publication number
CN104870769A
CN104870769A CN201380067186.6A CN201380067186A CN104870769A CN 104870769 A CN104870769 A CN 104870769A CN 201380067186 A CN201380067186 A CN 201380067186A CN 104870769 A CN104870769 A CN 104870769A
Authority
CN
China
Prior art keywords
sheet
manifold
outer sheet
exhaust manifold
suction tude
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.)
Pending
Application number
CN201380067186.6A
Other languages
Chinese (zh)
Inventor
H·卡尔胡尔
J-F·穆兰
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.)
Renault SAS
Original Assignee
Renault SAS
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 Renault SAS filed Critical Renault SAS
Publication of CN104870769A publication Critical patent/CN104870769A/en
Pending legal-status Critical Current

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
    • 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
    • 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
    • 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
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
    • F02B67/10—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of charging or scavenging apparatus
    • 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
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/22—Methods or apparatus for fitting, inserting or repairing different elements by welding or brazing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust

Landscapes

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

Abstract

The exhaust member of an internal combustion engine according to the invention comprises an exhaust manifold (2) with an inner sheet (20) and an outer sheet (21) welded to a turbocharger (3) via an inlet duct with an inner sheet (30) and an outer sheet (31) characterised in that the inlet duct is welded to the outer sheet (21) of the exhaust manifold and in that the inner sheet (20) of the manifold (2) is connected by a sliding link. The welding (4) between the exhaust manifold (2) and the inlet duct must make it possible to limit thermally induced mechanical stresses likely to result in cracks in the welding (4) that could destroy it; for this reason, the inlet duct, which has a proportionally lower temperature, is connected to the outer sheet (21) of the exhaust manifold (2) which also has a lower temperature than the inner sheet (20) of the manifold (2). Since the temperature difference is less between the various sheets welded together, the thermally induced mechanical stresses are correspondingly reduced. The sliding link of the inner sheet (20) of the manifold (2) with the inlet duct of the turbine housing gives it the possibility of expanding freely under the effect of heat.

Description

For the exhaust component of explosive motor
The present invention relates to automotive field and relate more specifically to be equipped with the explosive motor of built-in turbosupercharger.
Such motor comprises the gas exhaust manifold being connected to turbosupercharger suction tude.
This gas exhaust manifold is usually tightened assembly by one and is assembled in the cylinder head of motor, and this is tightened assembly and is connected on the deflation area of cylinder head by inlet flange.A metallic shim is disposed between this cylinder head and inlet flange of gas exhaust manifold to provide better exhaust sealing.
This gas exhaust manifold and this turbosupercharger are formed by two blocks of sheet materials.The interior sheet of the interior sheet of this gas exhaust manifold and this turbosupercharger or by an assembly (this assembly is not soldered but be pulled to together at each jointing of pipeline) or linked together by different expansion appliance.
Usually utilizing one to tighten assembly is assembled on this gas exhaust manifold by this turbosupercharger, and this is tightened assembly and is connected with the manifold of this turbosupercharger by the Outlet flange of this gas exhaust manifold.A metallic shim is disposed between turbo machine and the inlet flange of gas exhaust manifold to provide better exhaust sealing.
The European emission standard containing motor vehicle becomes more and more strict.In order to effectively process unburned hydrocarbon (HC) and carbon monoxide (CO), oxidation catalytic converter needs rapid-ignition.The products of combustion produced in firing chamber passed this cylinder head, manifold, turbo machine (in turbocharger engine), a pipe and an intake duct centrum before arrival includes the catalyst block of catalyzer.In the case of diesel engines, this catalyzer can be the NOx grabber that the DOC (diesel oxidation catalyst) of a kind of special disposal HC and CO or one also process nitrogen oxide (NOx).In Cold Start (motor be in environment temperature under), the dynamic range (or time constant) that the inlet temperature of this oxidation catalyst converter rises is determined by three parameters:
-with the quality (inertia) of gas contact component,
-with the material of gas contact material and thickness (cross conduction),
The geometrical shape (turbulent flow and conductive thermal exchange coefficient) of-pipeline.
That this manifold and turbine cylinder are normally made of cast iron and be connected by the flange with stud bolt.This turbo machine and catalytic converter are normally made up of tinsel.Normally realized by the flange with stud bolt with the connection of this turbo machine.Normally realize by welding with the connection of this catalytic converter.This Technology design is due to for making structure hardening and required lot of materials quality make oxidation catalyst temperature increase slowly.
This large amount of quality means:
-substrate must comprise catalyzer in large quantities, and this represents costs a large amount of in precious metal.
-this catalytic converter needs a large amount of DOC, and the volume of this catalytic converter is subject to the restriction that vehicle layout and PF (particulate filter) exist
-CO 2must discharge by using special (before/after introduce) heating strategy.
By reference and combine patent FR 2924467 describe with a kind of Double-walled Turbine-manifold scheme, the program makes the inertia likely realizing minimized heating part (manifold+turbo machine).This principle depends on a Machine Design, and this Machine Design combines:
-sheet metal inwall, performs the function of gas ' guiding ' to this turbo machine.Its little thickness means that it can have very little quality and cross conduction.
-thick sheet metal outer wall, for hardening mechanical structure and allow to introduce isolated air layer for this inwall.
Interface point place and the interface place with turbo machine between the pipe that the difference expansion appliance of-bellows fashion is disposed in interior sheet material.
This system makes likely to reduce the thermal inertia of system thus this catalyzer can be lighted a fire as quickly as possible, but now the cost of this system is still quite high.
Likely realize welded together for different sheet material, however the temperature of this gas exhaust manifold due to the quick increase of temperature may be very high, this may cause welding damaged or even damage.
An object of the present invention is to propose a kind of scheme, the program makes likely to realize to omit that these are very heavy and have the flange of particular thermal inertia, and the program meets the high heat request of this gas exhaust manifold.
The gas exhaust manifold that one has interior sheet and outer sheet is comprised according to the exhaust component of explosive motor of the present invention, this manifold is welded in a turbosupercharger by the suction tude that has interior sheet and outer sheet, it is characterized in that, this suction tude is soldered in the outer sheet of this gas exhaust manifold, and be, the interior sheet of this manifold is connected by a kind of being slidably connected.Welding between this gas exhaust manifold with this suction tude needs to make likely to realize limiting the hot mechanical stress caused, this mechanical stress likely causes crack in this welding, this crack likely reaches the degree of damaging this welding, and the suction tude that Here it is has a pro rata lower temperature is connected to the reason in the outer sheet of this gas exhaust manifold, and this outer sheet also has a temperature lower than the interior sheet of this manifold.Because the temperature difference between these different sheet materials welded together is lower, the mechanical stress that heat causes is lower accordingly.Being slidably connected between the interior sheet of this manifold and the suction tude of this turbine cylinder makes likely to realize the free expansion under thermal effect.
According to the first alternative form, the outer sheet of this gas exhaust manifold is soldered in the outer sheet of this suction tude.In these four sheet materials, these two outer sheet are that those its temperature are minimum in proportion and are that those optimal heats completely cut off.
According to the second alternative form, the outer sheet of this gas exhaust manifold is soldered in the interior sheet of this suction tude.Although hotter than the outer sheet of this suction tude, this interior sheet is cooler than the interior sheet of this manifold comparatively speaking.
According to a specific features, the outer sheet of this suction tude is soldered in the interior sheet of described pipe.The outer sheet of this pipe does not contact with the interior sheet of this manifold thus, and this interior sheet is the hottest sheet material.
According to a concrete arrangement, between these two welding, located an expansion appliance.Welding between this manifold external sheet material (this sheet material is exposed at most in heat) is affected from the welding between two sheet materials of this suction tude by an expansion appliance, and this expansion appliance decreases and is welded on the difference in temperature by these two and causes mechanical stress.
Arrange according to another, after in the interior sheet that the outer sheet of this suction tude has been soldered to described pipe, an expansion appliance is positioned on this turbo machine.The expansion appliance be arranged between this welding and the bottom of the interior sheet of this pipe allows to realize this welding and does not bear the mechanical stress be associated with the heat of this interior sheet.
According to a specific features, between these two sheet materials of this suction tude, located a thermal insulation body.This insulation allows the outer sheet of this suction tude to be not hotter compared with this interior sheet.
According to another feature, between these two sheet materials of this gas exhaust manifold, located a thermal insulation body.This insulation allows the outer sheet of this gas exhaust manifold to be not hotter compared with this interior sheet.
According to a specific features, this thermal insulation body is air.This insulation can also be a solid barrier body.
The invention still further relates to a kind of explosive motor, this explosive motor is equipped with the exhaust component with one of above feature.
Following by shown in the drawings and by providing in graphic mode example by reading, other advantages also will become clear to those skilled in the art.
-Fig. 1 depicts a general arrangement according to explosive motor of the present invention,
-Fig. 2 shows first alternative form of the present invention,
-Fig. 3 illustrates second alternative form of the present invention,
-Fig. 4 depicts the 3rd alternative form,
-Fig. 5 shows the 4th alternative form.
Explosive motor 1 shown in FIG comprises an explosive motor (description), a gas exhaust manifold 2 and a turbosupercharger or turbo machine 3.This turbo machine 3, with this gas exhaust manifold 2, is double-walled, exists and is used for an interior sheet 20 of this manifold 2 and an interior sheet 30 for this turbo machine 3 and an outer sheet 21 for this manifold 2 and the outer sheet 31 for this turbo machine 3.Inside 30 and outside 31 sheet materials of this turbo machine 3 are columniform substantially.
First alternative form describes the connection between this manifold 2 and turbo machine 3 in detail shown in figure 2.The interior sheet 20 of this manifold and outer sheet 21 have a frame 200 and 210 annular substantially separately, and this frame has the size that equals the cylinder formed by the sheet material of this turbo machine 3 substantially.In this alternative form, the frame 210 of the interior sheet 21 of this manifold 2 slides in the frame 200 of this outer sheet 20.Sheet material 30 slides in frame 200.The sheet material 31 of this turbo machine 3 is welded to by weld seam 4 on the frame 210 of the outer sheet 21 of this manifold 2.Should it is expressly understood that when occurring in motor to be out of shape with the wall of temperature correlation, these interior sheet 30 and 20 of bearing exhaust can move freely because they are not soldered.
At the remainder of this specification, identical reference will be used for identical element.
In the second shown in figure 3 alternative form, frame 200 is slided in this frame 210, and in this frame, it can move freely.This external margin 210 is welded in the interior sheet 30 of this turbo machine 3 by weld seam 5, and this outer sheet 31 is welded in this interior sheet 30 by weld seam 4.The advantage of this scheme is that the wall of this turbo machine 3 can manufacture before this turbo machine 3 is installed in this gas exhaust manifold 2, because the welding 5 only just enforcements when final assembling.This turbo machine 3 is soldered in the outer sheet 21 of this manifold 2, and because described sheet material less bears heat than this interior sheet 20, the distortion of there is more not obvious.
In the alternative form of Fig. 4, these two weld seams 4 with add an expansion appliance 6 between 5 to allow that two distortion of welding between 4 and 5, these welding are therefore less heavily stressed by bearing.
In the alternative form of Fig. 5, between welding 4 and the interior sheet 30 of this turbo machine 3, arrange second expansion appliance 7 to allow hotter interior sheet 30 to expand and this can not be made to weld welding bead 4 to produce stress.
One deck air layer 8 can play the insulating effect between these two sheet materials 30 and 31 of this turbo machine 3, but also may arrange a solid barrier body 80 between these two sheet materials.Similarly, between two sheet materials 20 and 21 of this manifold 2, one deck air layer 9 or a solid barrier body 90 is arranged.

Claims (10)

1. the exhaust component of an explosive motor, this exhaust component comprises the gas exhaust manifold (2) that has interior sheet (20) and outer sheet (21), this manifold is welded on a turbosupercharger (3) by the suction tude that has interior sheet (30) and outer sheet (31), it is characterized in that, the outer sheet (21) that this suction tude is soldered to this gas exhaust manifold (2) goes up and is that the interior sheet (20) of this manifold (2) is connected by a kind of being slidably connected.
2. exhaust component as claimed in claim 1, it is characterized in that, the outer sheet (21) of this gas exhaust manifold (2) is soldered in the outer sheet (31) of this suction tude.
3. exhaust component as claimed in claim 1, it is characterized in that, the outer sheet (21) of this gas exhaust manifold (2) is soldered in the interior sheet (30) of this suction tude.
4. the exhaust component as described in above claim, is characterized in that, the outer sheet (31) of this suction tude is soldered in the interior sheet (30) of described pipe.
5. the exhaust component as described in above claim, is characterized in that, between these two welding, located an expansion appliance (6).
6. the exhaust component according to any one of claim 3 to 5, it is characterized in that, after in the interior sheet (30) that the outer sheet (31) of this suction tude has been soldered to described pipe, an expansion appliance (7) is positioned on this turbo machine (3).
7. the exhaust component as described in one of above claim, is characterized in that, between two sheet materials (30,31) of this suction tude, located a thermal insulation body (8,80).
8. the exhaust component as described in one of above claim, is characterized in that, between two sheet materials (20,21) of this gas exhaust manifold (2), located a thermal insulation body (9,90).
9. the exhaust component as described in one of claim 7 and 8, is characterized in that, this thermal insulation body (8,9) is air.
10. an explosive motor, this explosive motor is equipped with the exhaust component according to one of above feature.
CN201380067186.6A 2012-12-26 2013-10-14 Exhaust member for an internal combustion engine Pending CN104870769A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR1262776A FR3000134B1 (en) 2012-12-26 2012-12-26 EXHAUST DEVICE FOR INTERNAL COMBUSTION ENGINE
FR1262776 2012-12-26
PCT/FR2013/052444 WO2014102472A1 (en) 2012-12-26 2013-10-14 Exhaust member for an internal combustion engine

Publications (1)

Publication Number Publication Date
CN104870769A true CN104870769A (en) 2015-08-26

Family

ID=47989178

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201380067186.6A Pending CN104870769A (en) 2012-12-26 2013-10-14 Exhaust member for an internal combustion engine

Country Status (4)

Country Link
EP (1) EP2938849B1 (en)
CN (1) CN104870769A (en)
FR (1) FR3000134B1 (en)
WO (1) WO2014102472A1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020085932A1 (en) * 2000-12-12 2002-07-04 Paul Loffler Exhaust gas turbocharger for an internal combustion engine
EP1426557A1 (en) * 2002-12-03 2004-06-09 BorgWarner Inc. Casing for turbo charger
CN101341319A (en) * 2006-08-10 2009-01-07 三菱重工业株式会社 Method of manufacturing multi-stage supercharging exhaust turbosupercharger
CN101960113A (en) * 2008-03-13 2011-01-26 博格华纳公司 Exhaust manifold of an internal combustion engine
CN102395764A (en) * 2009-02-13 2012-03-28 巴伦西亚理工大学 Exhaust manifold of a turbo-supercharged reciprocating engine
US20120235407A1 (en) * 2011-03-14 2012-09-20 Michael John Blackie Integration ring

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2924467B1 (en) * 2007-12-04 2009-12-11 Renault Sas EXHAUST MANIFOLD WITH INTEGRATED TURBOCHARGER.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020085932A1 (en) * 2000-12-12 2002-07-04 Paul Loffler Exhaust gas turbocharger for an internal combustion engine
EP1426557A1 (en) * 2002-12-03 2004-06-09 BorgWarner Inc. Casing for turbo charger
CN101341319A (en) * 2006-08-10 2009-01-07 三菱重工业株式会社 Method of manufacturing multi-stage supercharging exhaust turbosupercharger
CN101960113A (en) * 2008-03-13 2011-01-26 博格华纳公司 Exhaust manifold of an internal combustion engine
CN102395764A (en) * 2009-02-13 2012-03-28 巴伦西亚理工大学 Exhaust manifold of a turbo-supercharged reciprocating engine
US20120235407A1 (en) * 2011-03-14 2012-09-20 Michael John Blackie Integration ring

Also Published As

Publication number Publication date
WO2014102472A1 (en) 2014-07-03
EP2938849B1 (en) 2018-04-25
FR3000134B1 (en) 2014-12-05
FR3000134A1 (en) 2014-06-27
EP2938849A1 (en) 2015-11-04

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Application publication date: 20150826

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