WO2010103052A1 - Abgasanlage - Google Patents
Abgasanlage Download PDFInfo
- Publication number
- WO2010103052A1 WO2010103052A1 PCT/EP2010/053053 EP2010053053W WO2010103052A1 WO 2010103052 A1 WO2010103052 A1 WO 2010103052A1 EP 2010053053 W EP2010053053 W EP 2010053053W WO 2010103052 A1 WO2010103052 A1 WO 2010103052A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- distance
- flange plates
- flange
- manifold
- exhaust system
- Prior art date
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
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of 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
- F01N13/18—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
- F01N13/1811—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration
-
- 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
- F01N2260/10—Exhaust treating devices having provisions not otherwise provided for for avoiding stress caused by expansions or contractions due to temperature variations
Definitions
- the invention relates to an exhaust system for an internal combustion engine with at least two directly adjacent flange plates for connecting in each case at least one exhaust pipe, in particular ei ⁇ nem manifold pipe to the internal combustion engine.
- the per ⁇ stays awhile flange plate has at least one passage for a guided in Krümmerohr exhaust gas flow and at least two arranged next to the passage, parallel to a direction X extending openings for in each case an insertable fastening bolts on.
- the flange plate can be connected to a housing part via the fastening bolts, are fastened into ⁇ particular to a cylinder head of the Verbrennungskraftma ⁇ machine.
- the invention has the object of designing a Abgasanla ⁇ ge and so arranged that a tempera ⁇ in- cuted displacement of the flange does not lead to increased wear.
- the radial distance RAk is up to a temperature Tl in at least one direction Y greater than or equal to half the distance Ak.
- the Fixed To ⁇ fixing bolts are elastically stretched when tightened and clamp the flange to the housing part.
- Zvi ⁇ rule of the flange plate and the housing part can be provided a se ⁇ parates sealing member. When the manifold pipes are heated, they expand fan-shaped, so that the flange plates move apart in the direction y defined here.
- the ends of the manifold pipes with the flange plates move all opposite to the moving ⁇ che direction Y or in the two directions Y.
- the whole distance is the radial From ⁇ RAk was greater than or equal to Pc. In such cases, it may be possible that a flange plate shifts extremely due to the deformation of the manifold pipes.
- each flange plate shifts by the same amount relative to its adjacent one.
- the thermal conditions are unequal, so that the radial distance RA k must be dimensioned for each well separately in Depending ⁇ ness of the distance Pc.
- the sum of the distances RAk of two holes in adjacent flange plates in corresponding opposite directions corresponds to the distance Ak.
- the temperature Tl refers to the average temperature of the exhaust pipes in the cold operating state at room temperature of 23 0 C.
- the temperature T2 refers to a Be ⁇ operating temperature of several 100 0 C.
- a diameter and the position of the opening in dependence on the temperature behavior of the manifold pipes and / or depending on the temperature behavior of the flange plates and in dependence of a diameter of the fastening bolt and the position of the fastening pin ⁇ tion in the direction Y are dimensioned.
- a simple assembly is to ensure in which not least ⁇ due to tolerance variations corresponding clearance between the side wall of the opening and the fastening bolt ⁇ must be ensured.
- the exhaust system has at least 1 or 2 further flange plates provided in advance that the distance Ak between different at least two different ⁇ pairs of flange plates is different.
- a pair of flange plates each form two immediately adjacent flange plates.
- the distance Ak of the two flange plates is at a temperature Tl to 23 degrees Celsius, between 0.2 mm and 2 mm, preferably 0.8 mm.
- the close arrangement of the flange plates next to each other ensures that a correspondingly smaller distance RAk is sufficient between the side wall and the fastening bolt. As soon as the flange plates abut one another in the direction Y, a reduction of the radial distance RAk is no longer possible.
- two unmit ⁇ adjacent adjacent flange plates at different temperatures Tl and T2 have a relation to the distance Ak by a distance M greater distance Aw and the diameter of the opening in the direction Y at least by the dimension M is greater than that in the direction Y corresponding diam ⁇ ser of the fastening bolt.
- the opening is formed as a bore and is dimensioned larger by the dimension M. In this construction, it is necessary to make the head of the fastening bolt entspre ⁇ accordingly large, which is not always possible due to relatively narrow construction ⁇ space ratios.
- the opening in the direction Y is formed as a slot.
- the head of the fastening bolt can be dimensioned to dress ⁇ ner.
- the opening may be advantageous if the opening with respect to a central axis of the opening at least up to a temperature Tl of the manifold pipes off-centered positio ⁇ ned to the mounting bolt. It is thereby achieved that the radial Ab ⁇ stand RAk is increased only in the region of the opening into which the fastening bolt would be displaced when moving the flange plate. Thus, the opening would be enlarged only in one direction Y, but not in the opposite direction Y and not in the direction of the central axis. For maximum fixed flange plates that can not move, this would be exactly opposite to the mounting bolts relative to flange plates, which can move when heated.
- Two adjoining flange plates each have a substantially perpendicular to the direction Y aligned, lateral abutment surface ⁇ over which the distance Ak of the two flange plates is defined. This achieves a defined stop and a defined minimum dimension for the radial distance RAk in the cold operating state and for the radia ⁇ len distance RAw in the warm operating state.
- manifold pipes are designed as manifold shells or two-walled as a shell manifold or as a single-walled manifold.
- one or both flange plates are designed as a collection flange or as a single flange.
- the thermally induced displacements are greater for single flanges, but with manifold flanges, the load on the manifold pipes is greater due to higher thermal stresses.
- the flange plate rests against the manifold pipe or is welded or soldered to the manifold pipe.
- the advantage lies in the better seal, with deferred flanges, which rest only on the manifold pipe, a simpler installation is ensured because the manufacturing tolerances can be better compensated.
- a fastening bolt to be inserted into the opening is provided, which is designed as a stud-side stud bolt or as a screw.
- the invention is first an arrangement of manifold pipe and flange plate. In a particular embodiment, this arrangement also includes the appropriate mounting bolts, which are usually specified by the engine manufacturer.
- Figure Ia is a schematic diagram of the positioning of four flange plates of a manifold of an exhaust system in the cold operating state Tl of the exhaust system;
- Figure Ib is a schematic diagram of Figure 1 in the warm operating state Be ⁇ T2 of the exhaust system with displaceable ⁇ cash flange plates;
- FIG. 2 shows two flange plates before heating at room temperature Tl
- FIG. 3a shows the two flange plates according to FIG. 2 in a displaceable variant after heating at operating temperature T2;
- Figure 3b the two flange plates of Figure 2 in non-displaceable variant after cooling to room temperature abutted to each other.
- Figure 4 shows two outer flange plates of four in total for a non-displaceable system with asymmetrical openings at room temperature
- 5a shows a schematic diagram of a fixed to a housing part of the exhaust system in an arrangement according to Figure 2 at room temperature with no Drainiebba ⁇ ren flange plates.
- FIG. 5b shows a schematic diagram according to Figure 5a in the warm Be ⁇ operating state at T2 with unchanged distance Ak;
- Figure 5c is a schematic diagram according to Fig. 5a and 5b in sauce ⁇ cooled operating state to each other struck with a distance Ak zero.
- the flange plates can move 2,3,7,8 at not maximum bias of the fixing bolts 4 shown in Fig. 2 ff.
- the fastening bolts 4 extend in a direction X shown in Fig. 5a to 5c at right angles to the direction Y.
- the flange plates 2,3,7,8 have a distance Ak to each other.
- the individual manifold pipes 20,30,70,80 usually form a Sam ⁇ melkrümmer, in which the individual manifold pipes 20, 30, 70, 80 open into a common main line.
- the manifold pipes 20, 30, 70, 80 are heated, a thermal see tension a change in the geometry of Sammel ⁇ manifold.
- the manifold pipes 20,30,70,80 move ⁇ be liens an average line of symmetry 10 to the outside, so-that on the flange plates 2,3,7,8 maximum Ver ⁇ shift can be determined.
- the distance Ak increases by the single or double measure M in one of the two directions Y, depending on the position of the flange plates 2,3,7,8.
- the movement in the Y direction is essential, even if the manifold tubes 20,30,70,80 move due to temperature in other directions, not necessarily perpendicular to the line of symmetry 10 (Fig. 3a ff.).
- the flange plates 2,3,7,8 can also move in parallel to a direction Y. It is idealized in the embodiments assumed that the header tubes 20,30,70,80 relative to the central line of symmetry 10 move symmetrically in an exhaust system 1 for de ⁇ Y directions outward.
- the direction Y is decisive, in which the flange plates 2,3,7,8 move.
- each two adjacent Flanschplat ⁇ th 2.3 is at room temperature or at a temperature up to 50 degrees maximum 0.5 mm.
- the two Flanschplat ⁇ th 2.3 move apart with temperature increase up to the operating temperature of several hundred degrees Celsius in a direction perpendicular to the X direction Y apart.
- FIGS. 2 to 3b result for two flange plates 2, 3, which are arranged directly opposite one another with respect to the symmetry line 10. Taking into account the assumption that the outer sections of the manifold pipes 70,80 move the double measure M when heated, is provided, corresponding holes 5 of the respective Flanschplat ⁇ 7.8 th either continue to at least twice the dimension M to enlarge or to change the relative position of a fastening ⁇ tion bolt 4 in the assembled state. For this see description to FIG. 4.
- flange plates 2,3 are shown after installation at room temperature.
- Each flange 2,3 has an aperture 21,31 for the respective manifold pipe 20,30 and two openings each for a respective buildin ⁇ actuating bolt. 4
- the distance Ak between the flange plates 2, 3 and the distance RAk of the respective fastening bolt 4 to the opening is given.
- the flange plates 2,3 have openings 5, through which the respective flange of an internal combustion engine is fixed with two 2.3 Befest Trentsbol ⁇ zen 4 on a housing part 6 (Fig. 5a-5c).
- the fastening bolts 4 are arranged in the direction X in which the flange 2,3 placed onto the housing part 6 to bear the ⁇ .
- FIG. 2 the dimensions of the openings 5 and fastening bolts 4 are shown in detail.
- the fastening ⁇ bolt 4 has a diameter 40 which is smaller than a diameter 51 of the opening 5.
- This example corresponds to the situation according to Fig. 5a. Based on this mounting situation, there are two possibilities of movement of the flange plates 2, 3, depending on how firmly the flange plates 2, 3 are prestressed by the fastening bolts 4.
- Fig. 3a the variant of a displaceable ⁇ ble and in Fig. 3b, the variant non-displaceable flange plates 2.3 is shown.
- the displaceable flange plates 2, 3 have been moved apart with increasing temperature from room temperature T 1 to operating temperature T 2 due to the thermal expansion of the manifold tubes 20, 30.
- the preload ⁇ tion of the flange 2.3 by the mounting bolts 4 is not maximum in this case.
- a radial distance RAk of the fastening bolt 4 in the cold operating state to the side wall 50 of the opening 5 is a few millimeters, usually between 1 mm and 3 mm, depending on the construction and dimension.
- the distance Aw in the warm operating state of the two flange plates 2.3 varies depending on the design and dimension between several millimeters and several centimeters. In this situation, in which the distance Aw has reached its largest dimension M, is ensured by the cold Be operating state ⁇ sufficiently large sized radial distance RAk that the respective flange ⁇ plate-2,3 not to the side wall 50 of the respective opening 5 strikes against the fastening bolt 4.
- Decisive is the original radial distance RAk between the fastening bolt 4 and the side wall 50 in the direction Y, ie in the direction in which the flange plates 5 move.
- the direction Y can deviate from the idealized representation shown in the exemplary embodiments.
- the two flange plates 2, 3 After the exhaust system 1 has cooled to room temperature, the two flange plates 2, 3 again move toward each other in the Y direction, so that the distance Ak is reduced again to a minimum. At the latest when the two flange plates 2, 3 abut one another with the contact surfaces 22, 32, the two flange plates 2, 3 can not move further toward one another.
- the measure corresponds to M, around which the flange plates the 2.3 maximum apart or move towards each other at ⁇ , the difference between the distance Pc at room temperature and the distance Aw Operating Tempe ⁇ temperature T2.
- the radial distance RAk between the fastening bolt 4 and the side wall 50 in the direction Y on the corresponding side of the fastening bolt 4 at room temperature corresponds to at least half of the temperature-induced dimension M, by which the respective flange plate 2, 3 shifts.
- Half the dimension M is sufficient because the two flange plates 2,3 oppositely vonei ⁇ Nander move away, so that the temperature-dependent degree M of the shift by the addition of the temperature-induced shifts of the individual flange plates 2,3 results.
- the flange plates 2, 3 are maximally prestressed and were able to withstand the thermal expansion of the manifold pipes 20, 30 up to the operating temperature T2.
- the bias of the fastening bolts 4 has been reduced and the flange plates 2, 3 have been moved toward each other by the shrinking manifolds 20, 30, as shown in FIG. 5c.
- the flange plates each have a 2.3 shown arranged at right angles to the direction Y bearing surface 22, 32, which also may be present, depending on the initial situation and temperaturbe ⁇ dingter deformation against each other.
- the two flange plates 2,3 are arranged a few millimeters apart during assembly. In the variant slidable flange 2.3, they move further apart when heated. In the variant of non-displaceable flange 2.3, they initially do not move further apart when heated due to the bias and are approximated during cooling down to a level of zero, so that the two flange plates 2,3 abut each other directly.
- FIG. 4 shows one of the two outer flange plates 7 with a passage 71 next to the adjacent flange plate 2.
- Both flange plates 2,7 have two openings 5 enlarged in the direction Y.
- the mounting bolt 4 is arranged eccentrically in the cold state in the Y direction on a side wall 50 of the bore 5 and migrates at Ermér ⁇ tion on the opposite side of the slot 5.
- the distance RAk the respective flange 7 is at the in ⁇ nere or outer position adapted to the manifold, since the outer flange plate 7 is more bewe ⁇ gene than the inner flange 2.
- the radial distance ⁇ RAk of the mounting bolt 4 to the side wall 50 of the opening 5 is up to twice as large to compensate for the movement.
- FIGS. 5a to 5c show the thermally induced movement of flange plates 2, 3, which are maximally pretensioned via the fastening bolts 4.
- Fig. 5a a schematic diagram of an exhaust system 1 is shown schematically at room temperature.
- the two manifolds 20,30 are fixed on the respective flange 2.3 on a housing part 6 of a not shown combustion ⁇ combustion engine.
- the two flange ⁇ plates 2.3 are bolted via two fastening bolts 4 to the housing part 6.
- the fastening bolts 4 ver ⁇ run through corresponding openings 5 of the two flange plates 2.3.
- the two flange plates 2, 3 have a distance Ak with respect to the two contact surfaces 22, 32.
- Fig. 5b the situation is due to the non 29iebba ⁇ ren flange plates 2,3 and the thermally deformed Manifold tubes 20,30 shown at operating temperature T2.
- the partial plastic deformation of the manifold tubes 20,30 is represented by bulges.
- the distance Aw ent ⁇ speaks about the distance Aw of FIG. 5a, since the flange 2.3 are biased to the maximum and do not move.
- 5c shows the situation in this process after cooling from T2 to T1, in which the two flange plates 2,3 abut against each other and the distance Ak is no longer given with respect to FIG. 5a.
- the radial From ⁇ was RAk between the attachment bolt 4 and the respective side wall 50 in one of the two Moegli ⁇ Chen Y directions on a Minimum is reduced.
- the fastening bolt 4 is not touched or influenced by the side wall 50 of the opening 5.
- the fastening bolt 4 would have to absorb sharpening forces of the respective flange plate 2, 3 and tilt, so that disassembly would not be possible or would be very difficult.
- the respectively opposite in the respective opening 5 radial distance RAk is increased accordingly.
- Decisive is the construction according to the invention for flange plates 2, 3, which are maximally biased for the reassembly of flange plates 2, 3, because the manifold tubes 20, 30 deform plastically the first time they are heated to the operating temperature.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Toxicology (AREA)
- Exhaust Silencers (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112010001119T DE112010001119A5 (de) | 2009-03-09 | 2010-03-09 | Abgasanlage |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009011748.2 | 2009-03-09 | ||
DE200910011748 DE102009011748B4 (de) | 2009-03-09 | 2009-03-09 | Abgasanlage für eine Verbrennungskraftmaschine mit nebeneinander angeordneten Flanschplatten |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2010103052A1 true WO2010103052A1 (de) | 2010-09-16 |
WO2010103052A9 WO2010103052A9 (de) | 2010-12-02 |
Family
ID=42312833
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2010/053053 WO2010103052A1 (de) | 2009-03-09 | 2010-03-09 | Abgasanlage |
Country Status (2)
Country | Link |
---|---|
DE (2) | DE102009011748B4 (de) |
WO (1) | WO2010103052A1 (de) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03129717U (de) * | 1990-04-09 | 1991-12-26 | ||
JPH07247836A (ja) * | 1994-03-11 | 1995-09-26 | Hitachi Metals Ltd | 排気マニホルド |
JPH08260953A (ja) * | 1995-03-27 | 1996-10-08 | Toyota Motor Corp | 内燃機関の排気マニホルド |
DE29720941U1 (de) | 1997-11-26 | 1998-03-19 | Heinrich Gillet Gmbh & Co Kg, 67480 Edenkoben | Motorflansch |
JP2000027643A (ja) * | 1998-07-09 | 2000-01-25 | Nissan Motor Co Ltd | 排気マニホールドの締結構造 |
DE102006017213A1 (de) | 2005-05-24 | 2006-11-30 | Renault S.A.S. | Metallische Flachdichtung mit zerbrechlichen Verbindungsabschnitten |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20080096666A (ko) * | 2006-02-17 | 2008-10-31 | 히타치 긴조쿠 가부시키가이샤 | 내열 주조 철강제 배기 매니폴드 |
-
2009
- 2009-03-09 DE DE200910011748 patent/DE102009011748B4/de not_active Expired - Fee Related
-
2010
- 2010-03-09 WO PCT/EP2010/053053 patent/WO2010103052A1/de active Application Filing
- 2010-03-09 DE DE112010001119T patent/DE112010001119A5/de not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03129717U (de) * | 1990-04-09 | 1991-12-26 | ||
JPH07247836A (ja) * | 1994-03-11 | 1995-09-26 | Hitachi Metals Ltd | 排気マニホルド |
JPH08260953A (ja) * | 1995-03-27 | 1996-10-08 | Toyota Motor Corp | 内燃機関の排気マニホルド |
DE29720941U1 (de) | 1997-11-26 | 1998-03-19 | Heinrich Gillet Gmbh & Co Kg, 67480 Edenkoben | Motorflansch |
JP2000027643A (ja) * | 1998-07-09 | 2000-01-25 | Nissan Motor Co Ltd | 排気マニホールドの締結構造 |
DE102006017213A1 (de) | 2005-05-24 | 2006-11-30 | Renault S.A.S. | Metallische Flachdichtung mit zerbrechlichen Verbindungsabschnitten |
Also Published As
Publication number | Publication date |
---|---|
DE112010001119A5 (de) | 2012-10-04 |
WO2010103052A9 (de) | 2010-12-02 |
DE102009011748A1 (de) | 2010-09-23 |
DE102009011748B4 (de) | 2013-05-23 |
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