CN102434259A

CN102434259A - Exhaust line for an internal combustion engine

Info

Publication number: CN102434259A
Application number: CN2011102577931A
Authority: CN
Inventors: M·比尔; H-P·格拉夫
Original assignee: MAN Diesel and Turbo SE
Current assignee: MAN Energy Solutions SE
Priority date: 2010-08-25
Filing date: 2011-08-25
Publication date: 2012-05-02
Also published as: KR20120019394A; FI20115818L; DE102010039751A1; FI20115818A0; JP2012047176A; AT510350A2; JP5524150B2

Abstract

An exhaust line for an internal combustion engine is provided to simplify a structure by integrally forming one or more strain compensation units in a pipe line. An exhaust line (1) for an internal combustion engine comprises a pipe line (10) and one or more strain compensation units (20). The pipe line comprises one or more cylinder connection units (40) for exhaust gas. The strain compensation units are integrally arranged on the pipe line in a longitudinal direction and accept the strain of the pipe line.

Description

The outlet pipe that is used for internal-combustion engine

Technical field

The present invention relates to a kind of outlet pipe that is used for internal-combustion engine of constructing according to the preamble of claim 1.

Background technique

The outlet pipe of the type that for example, known beginning is mentioned from file US 2 014 355A.In this outlet pipe; Piping installation (Rohrleitungsanordnung) has and is configured to independently deformation of members compensating part; It so is installed in the piping installation through threaded-on flange (Gewindeflansche); That is, it interconnects the independently tube segment of two adjacency of piping installation separably.

In this outlet pipe, each binding (Einbindung) that is necessary for the modification compensating part is provided with corresponding interface unit (for example flange or clamping stirrup coupling (Spannschellenanschluss)), and this has improved the complexity of outlet pipe.

Summary of the invention

Therefore the object of the invention does, the outlet pipe according to the preamble of claim 1 is provided, and it compared with prior art rises has littler complexity.

This purpose realizes through the outlet pipe according to claim 1.Define improvement project of the present invention in the dependent claims.

According to the present invention, the outlet pipe that is used for internal-combustion engine have piping installation with at least one be arranged within the longitudinal extension of piping installation deformation-compensated be used for absorbing (Aufnehmen) piping installation especially with the distortion of temperature correlation.Outstanding therefrom according to outlet pipe of the present invention; Promptly; Piping installation has the waste gas of at least one wall place that laterally is arranged in piping installation (or radially) cylinder joint part with the cylinder that is used for internal-combustion engine; And piping installation is configured to single-piece each other with this at least one deformation-compensated, that is to say, manufactures single member by unique common material structure.

According to the present invention, the design proposal of deformation-compensated single-piece through piping installation and each setting need not be provided with interface unit, and this has reduced the complexity of piping installation significantly through member still less, and has reduced its weight and cost thus.

Through reduce oscillating mass that weight reduced outlet pipe with and thermal capacity.Quality through littler vibration reduces influence of vibration and each side direction of deformation-compensated excitation (Lateralanregung) to the cylinder head of internal-combustion engine.Utilize littler thermal capacity, outlet pipe according to the present invention is used in the shorter heat run stage of internal-combustion engine and as might places the shorter response time of catalyst converter (Katalysator) afterwards to become possibility.

According to a kind of form of implementation of the present invention, be provided with along the longitudinal extension of piping installation a plurality of according to cylinder joint part of the present invention, thereby piping installation is configured for the gas collecting tube (Sammelleitung) of waste gas of a plurality of cylinders of internal-combustion engine.

According to another form of implementation of the present invention, arrange a plurality of compensating parts according to a modification of this invention with the mode that becomes axial spacing each other along the longitudinal extension of piping installation.

According to a form of implementation more of the present invention; Each deformation-compensated the form with collocation structure forms (einformen) in the wall of piping installation through distortion (Umformung); Wherein, at least one of piping installation is not contiguous to deformation-compensated with the section of collocation structure and locates.Preferably, with the formal construction collocation structure of waveform configuration or bellows structure (Faltenbalgstruktur).

Preferably, for example can pass through the roundwood rolling (Rundwalzen) and the welding subsequently of sheet material (Blech) and make piping installation, wherein, when roundwood is rolling, form collocation structure, that is to say, be attached in the rolling section.

According to another form of implementation of the present invention, along the longitudinal extension of piping installation with the mode that becomes axial spacing each other arrange a plurality of according to of the present invention not with the section of collocation structure.Preferably, along the longitudinal extension of piping installation, deformation-compensated and do not replace each other with the section of collocation structure.

Correspondingly, according to a kind of form of implementation of the present invention, in piping installation with the mode of unit single-piece or as a whole be provided with a plurality of with deformation-compensated that does not replace with the section of collocation structure.

According to another form of implementation of the present invention, each cylinder joint part has the receiving bore in the wall that is configured in piping installation, can the flue gas leading (Abgasrohr) of the cylinder of internal-combustion engine be inserted in (einschiebbar) receiving bore.

By this way; Inflow geometrical shape

for locating in the end that is inserted into of flue gas leading provides the degrees of freedom in the bigger design; Wherein, can realize little tolerance simultaneously.

According to a form of implementation more of the present invention; Flue gas leading is inserted in the receiving bore with its predetermined length

; Thereby its with respect to the longitudinal axis of piping installation with predetermined angle, be preferably more than 0 degree and less than the angle of 90 degree branch (abzweigen) from piping installation radially; Wherein, peripheral region and piping installation weld together flue gas leading outside.

Preferably, so construct each cylinder joint part, that is, in the state that the flue gas leading of cylinder is inserted into, the inflow direction of flue gas leading is stretching in greater than 0 degree and the angle less than 90 degree with respect to the main flow direction of piping installation.

According to another form of implementation more of the present invention, each cylinder joint part forms out from the wall of piping installation (herausformen) through distortion as the tubular bump radially of piping installation, wherein, forms receiving bore by tubular bump.

Through molding the cylinder joint part, simply mode identically is scheduled to the inflow direction of the expectation of flue gas leading together, thereby can cancel complicated foundry goods design.

According to a kind of form of implementation of the present invention, at least one cylinder joint part is configured to engage (einfuegen) pipe saddle joint (Rohr-Sattelstutzen) in the wall of piping installation, wherein, forms receiving bore by the pipe saddle joint.

This pipe saddle joint simply mode installs on (aufsatteln) pipe arrangement with the mode of saddle subsequently, and can for example identically be scheduled to the inflow direction of the expectation of flue gas leading together as standard piece with reference to ground, thereby can cancel complicated foundry goods design.

According to a form of implementation more of the present invention, conduit is axially inserted respectively in each inner circumference edge of deformation-compensated of piping installation, catheter shaft is crossed over the collocation structure of (ü berbr ü cken) deformation-compensated to ground.Can avoid eddy current through collocation structure by this way like the waste gas that might be able to cause.

According to another form of implementation of the present invention, each does not have predetermined inner diameter with the section of collocation structure, wherein; Its each conduit has outer diameter; So set the size of outer diameter, that is, conduit seamlessly radially is supported on the inner diameter place of the section of not being with collocation structure.

Thus, can simply and reliably each conduit radially be remained in the piping installation, and only also need optionally (punktuell) fixing to prevent displacement.

According to another form of implementation more of the present invention, each cylinder joint part is configured in the not section with collocation structure of piping installation.

According to a form of implementation more of the present invention, piping installation is configured to double-walled.Can prevent the superheating of outlet pipe by this way and when turbosupercharger places afterwards, prevent the too high energy loss of waste gas.

The present invention also relates to such form of implementation clearly; Promptly; Do not provide these forms of implementation through the characteristics combination of drawing (R ü ckbez ü gen) of directly returning from claim, to this, disclosed characteristic of the present invention (as long as it is significant technically) combination each other arbitrarily.

Description of drawings

According to preferred form of implementation the present invention is described in more detail with reference to accompanying drawing below.

Fig. 1 has shown the schematic side view of outlet pipe of the cylinder joint part of the waste gas that is provided with the cylinder that is used for internal-combustion engine unilaterally,

Fig. 2 has been provided with the schematic side view of outlet pipe of cylinder joint part of the waste gas of the cylinder that is used for internal-combustion engine with having shown bilateral,

Fig. 3 has shown the schematic side view according to the outlet pipe of a kind of form of implementation of the present invention,

Fig. 4 has shown the schematic side view according to the outlet pipe of another form of implementation of the present invention,

Fig. 5 has shown the schematic side view according to the outlet pipe of another form of implementation more of the present invention,

Fig. 6 has shown the schematic side view according to the outlet pipe of a form of implementation more of the present invention,

Fig. 7 has shown the schematic side view according to the outlet pipe of another form of implementation of the present invention.

List of reference characters

1 outlet pipe

The 1a outlet pipe

The 1b outlet pipe

The 1c outlet pipe

The 1d outlet pipe

10 piping installations

11 walls

20 deformation-compensated

30 with the section of collocation structure

31 inner diameters

40 cylinder joint parts

40a cylinder joint part

41 receiving bores

The 41a receiving bore

50 flue gas leadings

60 conduits

61 outer diameters

70 pipe reinforcing parts

100; The 100a outlet pipe

101; The 101a piping installation

102; The 102a tube segment

103; 103a clamping stirrup joint part

104; The 104a clamping stirrup

105; Deformation-compensated of 105a

106; 106a cylinder joint part

The L longitudinal axis

The ER inflow direction

The HR main flow direction

Embodiment

Fig. 1 and Fig. 2 have shown the outlet pipe of being made by the applicant up to now that is used for the internal-combustion engine (not shown) 100, two examples of 100a.

As Fig. 1 showed, outlet pipe 100 had piping installation 101, and it has a plurality of by for example castiron independently tube segment 102.Within the longitudinal extension of piping installation 101, arrange between the tube segment 102 of two vicinities that respectively deformation-compensated 105 (in Fig. 1, only showing one deformation-compensated) is to be used for the distortion of suction line device 101.For connect single tube segment 102 with deformation-compensated 105, at the corresponding longitudinal end place of these members clamping stirrup joint part 103 is set respectively, itself and clamping stirrup 104 link together.

Each tube segment 102 laterally has the for example cylinder joint part 106 of the waste gas of the cylinder (not shown) that is used for internal-combustion engine of casting (angiessen) at Qi Bichu.

In an identical manner, the outlet pipe 100a of Fig. 2 has piping installation 101a, and it has a plurality of by for example castiron independently tube segment 102a.Within the longitudinal extension of piping installation 101a, between the tube segment 102a of two vicinities, be furnished with deformation-compensated 105a respectively to be used for the distortion of suction line device 101a.In order to connect single tube segment 102a and deformation-compensated 105a, at the corresponding longitudinal end place of these members clamping stirrup joint part 103a is set respectively, itself and clamping stirrup 104a link together.

Each tube segment 102 bilateral ground has a plurality of for example cylinder joint part 106a of the waste gas of the cylinder (not shown) that is used for internal-combustion engine of casting at Qi Bichu.

Wherein can cancel clamping stirrup joint part 103 through the present invention, 103a and clamping stirrup 104,104a and corresponding weld seam.

With reference now to Fig. 3 to 7, form of implementation of the present invention is described.

Fig. 3 has shown first form of implementation that is used for the outlet pipe 1 of internal-combustion engine (not shown) according to of the present invention.

Outlet pipe 1 has piping installation 10, and within the longitudinal extension of piping installation 10, have a plurality of deformation-compensated 20 to be used for the distortion of suction line device 10.

In addition, deformation-compensated be used to compensate with the axial length change of temperature correlation, radially orientating deviation (Fehlausrichtung) and as might be used for buffering vibration.For example, in file DE 10 2,004 021 799 B3, described and be used for deformation-compensated example.

Piping installation 10 is configured to single-piece each other with deformation-compensated 20, that is to say, from continuous pipe fitting, is shaped.

Each deformation-compensated 20 for example is formed in the wall 11 of piping installation 10 through rolling deformation (Walzumformen) as collocation structure waveform or bellow-shaped; Wherein, at least one of piping installation 10 is not contiguous to each deformation-compensated 20 place with the section 30 of collocation structure.

As can be from finding out Fig. 3; Correspondingly; Along the longitudinal extension of piping installation 10 with the mode that becomes axial spacing each other be furnished with a plurality of compensating parts according to a modification of this invention 20 with a plurality of according to of the present invention not with the section 30 of collocation structure; Wherein, deformation-compensated 20 and do not replace each other with the section 30 of collocation structure.

Correspondingly, in piping installation 10 with the mode of unit single-piece or as a whole be provided with a plurality of with deformation-compensated 20 that does not replace with the section 30 of collocation structure.

In addition, as can be from finding out Fig. 3, each laterally have the cylinder joint part 40 of the waste gas of the cylinder (not shown) that is used for internal-combustion engine at single vertical side place of the wall 11 of piping installation 10 with the section 30 of collocation structure.

Thus, a plurality of cylinder

joint parts

40,40 are set, thereby piping installation 10 is configured for the gas collecting tube of waste gas of a plurality of cylinders of internal-combustion engine along the longitudinal extension of piping installation 10.

Each cylinder joint part 40 has the receiving bore 41 in the wall 11 that is configured in piping installation 10; Can the flue gas leading 50 of each cylinder of internal-combustion engine be inserted in the receiving bores 41; Particularly; Flue gas leading 50 inserts in receiving bore 41 with its predetermined length, and peripheral region and piping installation 10 weld together outside.

As can be from finding out Fig. 3, each flue gas leading 50 so can be inserted into or be inserted into, that is, it is with predetermined angle (at this for example with the angle with respect to about 55 degree of the longitudinal axis L of piping installation 10) branch from piping installation 10 radially.Thus, so construct each cylinder joint part 40, that is, make in the state that flue gas leading 50 is inserted into, the inflow direction ER of flue gas leading 50 stretches in the angle that the main flow direction HR about 55 with respect to piping installation 10 spends.

According to first form of implementation of the present invention that in Fig. 3, shows; Preferably; Each cylinder joint part 40 forms out from the wall 11 of piping installation 10 as the tubular bump radially of piping installation 10 or dome portions (Dom) mode (hydraulisch) with hydraulic pressure; Wherein, form receiving bore 41 by tubular bump.

Conduit 60 is axially inserted in each inner circumference edge of deformation-compensated 20 of piping installation 10, conduit 60 axially or along longitudinal extension is crossed over each collocation structure of deformation-compensated 20.

The section 30 with collocation structure does not have predetermined inner diameter 31; Wherein, conduit 60 has outer diameter 61 respectively at the place, end of its expansion, so sets the size of outer diameter 61; That is, each conduit 60 seamlessly radially is supported on each not with inner diameter 31 places of the section 30 of collocation structure.For fixed-site, for example additionally conduit 60 is fixed on piping installation 10 places by means of one or more bolt (not shown)s.

Fig. 4 has shown second form of implementation according to outlet pipe 1a of the present invention that is used for the internal-combustion engine (not shown).Except several very little differences, identical with outlet pipe 1 according to Fig. 3 according to the outlet pipe 1a of Fig. 4.For this reason, below only describe difference, wherein,, in Fig. 4, use identical reference number for the parts identical with Fig. 3.

Ground different with Fig. 3, according to Fig. 4, each cylinder joint part 40a is configured to join to the pipe saddle joint in the wall 11 of piping installation 10, wherein, forms receiving bore 41a by the pipe saddle joint.

Fig. 5 has shown the 3rd form of implementation according to outlet pipe 1b of the present invention that is used for the internal-combustion engine (not shown).Except several very little differences, according to the outlet pipe 1b of Fig. 5 with according to the outlet pipe 1 of Fig. 3 or identical according to the outlet pipe 1a of Fig. 4.For this reason, below only describe difference, wherein,, in Fig. 5, use identical reference number for the parts identical with Fig. 3 or Fig. 4.

Different ground with Fig. 3 and Fig. 4; According to Fig. 5; Each not with the section 30 of collocation structure laterally two of the wall 11 of piping installation 10 each other on the diameter (diametral) relative vertical side place have respectively the waste gas of the cylinder (not shown) that is used for internal-combustion engine cylinder joint part 40 (that is to say, two relative and axially on the cylinder joint part 40 of dislocation each other).For example, this arrangement of cylinder joint part 40 is suitable for being configured to the internal-combustion engine of V-type engine.

Fig. 6 has shown the 4th form of implementation according to outlet pipe 1c of the present invention that is used for the internal-combustion engine (not shown).Except several very little differences, according to the outlet pipe 1c of Fig. 6 with according to the outlet pipe 1 of Fig. 3 or identical according to the outlet pipe 1a of Fig. 4.For this reason, below only describe difference, wherein,, in Fig. 6, use identical reference number for the parts identical with Fig. 3 or Fig. 4.

Ground different with Fig. 3 and Fig. 4, according to Fig. 6, the cylinder joint part 40 with the section 30 of collocation structure does not point on two opposite directions.In other words, in succession alternately laterally be not arranged in two of wall 11 of piping installation 10 relative vertical side places on the diameter each other with each cylinder joint part 40 of the section 30 of collocation structure.For example, this arrangement of cylinder joint part 40 is suitable for being configured to the internal-combustion engine of V-type engine equally.

Fig. 7 has shown the 5th form of implementation according to outlet pipe 1d of the present invention that is used for the internal-combustion engine (not shown).The possible flexible program that has shown first to fourth form of implementation of the present invention (Fig. 3-6) according to the outlet pipe 1d of Fig. 7.Therefore only describe difference below, wherein,, in Fig. 7, use identical reference number for the parts identical with Fig. 3 to 6.

As can from finding out Fig. 7,, cancelling several or all conduits 60 according to first flexible program.In addition additionally or alternatively, according to second flexible program for high exhaust gas pressure, can several or all be not in outer periphery place mounting pipe reinforcing part 70 with the section 30 of collocation structure and/or several or all waste gases pipe 50.

According to the 6th form of implementation that does not show in the drawings of the present invention, the outlet pipe 1 to 1d of first to the 5th form of implementation of the present invention or its piping installation 10 can be configured to double-walled.

Claims

An outlet pipe that is used for internal-combustion engine (1,1a, 1b, 1c; 1d), and said outlet pipe (1,1a, 1b; 1c 1d) has deformation-compensated (20) within the longitudinal extension that piping installation (10) and at least one be arranged in said piping installation (10) to be used to absorb the distortion of said piping installation (10)

It is characterized in that said piping installation (10) has the cylinder joint part (40 that at least one wall that laterally is arranged in said piping installation (10) (11) is located; 40a) with the waste gas of the cylinder that is used for internal-combustion engine, and said piping installation (10) and said at least one deformation-compensated (20) are configured to single-piece each other.
Outlet pipe 2. according to claim 1 (1,1a, 1b; 1c; 1d), it is characterized in that said at least one deformation-compensated (20) are formed in the wall (11) of said piping installation (10) with the form of collocation structure; And wherein, at least one of said piping installation (10) is not contiguous to said deformation-compensated (20) with the section (30) of collocation structure and locates.
Outlet pipe 3. according to claim 2 (1,1a, 1b, 1c 1d), is characterized in that, said at least one cylinder joint part (40; 40a) has receiving bore (41 in the wall (11) that is configured in said piping installation (10); 41a), can the flue gas leading (50) of the cylinder of internal-combustion engine be inserted said receiving bore (41; 41a).
Outlet pipe 4. according to claim 3 (1,1a, 1b, 1c 1d), is characterized in that, said flue gas leading (50) is inserted into said receiving bore (41 with its predetermined length; 41a), thus said flue gas leading (50) with predetermined angle branch from said piping installation (10) radially, and wherein, said flue gas leading (50) peripheral region and said piping installation (10) outside welds together.
According to claim 3 or 4 described outlet pipes (1,1a, 1b; 1c; 1d), it is characterized in that said at least one cylinder joint part (40) forms out from the wall of said piping installation (10) as the tubular bump radially of said piping installation (10); And wherein, form said receiving bore (41) by said tubular bump.
6. according to claim 3 or 4 described outlet pipes (1a); It is characterized in that; Said at least one cylinder joint part (40a) is configured to join to the pipe saddle joint in the wall (11) of said piping installation (10), and wherein, forms said receiving bore (41a) by said pipe saddle joint..
7. according to each described outlet pipe (1 in the claim 2 to 6; 1a, 1b, 1c; 1d); It is characterized in that conduit (60) is axially inserted in the inner circumference edge of at least one deformation-compensated (20) of said piping installation (10), said conduit (60) is axially crossed over the collocation structure of said at least one deformation-compensated (20).
Outlet pipe 8. according to claim 7 (1,1a, 1b; 1c 1d), is characterized in that; Said at least one do not have predetermined inner diameter (31) with the section (30) of collocation structure, and wherein, said conduit (60) has outer diameter (61); So set the size of said outer diameter (61), that is, said conduit (60) seamlessly radially is supported on saidly not to be located with the inner diameter (31) of the section (30) of collocation structure.
According to each described outlet pipe in the claim 2 to 8 (1,1a, 1b, 1c 1d), is characterized in that, said at least one cylinder joint part (40; At least one that 40a) is configured in said piping installation (10) be not in the section (30) with collocation structure.
According to each described outlet pipe in the claim 1 to 9 (1,1a, 1b, 1c 1d), is characterized in that, said piping installation (10) is configured to double-walled.