EP1500788A1 - Double flow scroll - Google Patents

Double flow scroll Download PDF

Info

Publication number
EP1500788A1
EP1500788A1 EP03016529A EP03016529A EP1500788A1 EP 1500788 A1 EP1500788 A1 EP 1500788A1 EP 03016529 A EP03016529 A EP 03016529A EP 03016529 A EP03016529 A EP 03016529A EP 1500788 A1 EP1500788 A1 EP 1500788A1
Authority
EP
European Patent Office
Prior art keywords
twin
turbine housing
shells
housing according
partition wall
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.)
Withdrawn
Application number
EP03016529A
Other languages
German (de)
French (fr)
Inventor
Hartmut Claus
Michael Mayer
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.)
BorgWarner Inc
Original Assignee
BorgWarner Inc
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 BorgWarner Inc filed Critical BorgWarner Inc
Priority to EP03016529A priority Critical patent/EP1500788A1/en
Priority to US10/897,727 priority patent/US20050019158A1/en
Publication of EP1500788A1 publication Critical patent/EP1500788A1/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D9/00Stators
    • F01D9/02Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
    • F01D9/026Scrolls for radial machines or engines
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05DINDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00Application
    • F05D2220/40Application in turbochargers

Definitions

  • the present invention relates to a twin-flow turbine housing according to the preamble of claim 1.
  • turbines such as the turbine part of a turbocharger for Motor vehicles to use turbine housing of various kinds.
  • turbine housings made of cast iron have a helical inlet space for the combustion gases from the engine be supplied via a manifold to the turbine part of a turbocharger, from where they then For example, by an annular gap, which has a mechanism for varying the Flow geometry may be supplied to the turbine wheel.
  • the helical inlet space surrounds the actual turbine chamber and forms with this together the turbine housing in which the turbine wheel and the mechanism are housed for geometry variation.
  • the turbine housing made of sheet metal, advantageously in double-walled construction, on the one hand to save weight, but above all, what It is more important to over-cool the exhaust gases of the engine when the turbocharger is cold Prevent, as the downstream catalyst through the exhaust gases as soon as possible Operating temperature must be heated to achieve its full effect.
  • the present invention is therefore the object of a twin turbine housing Manufacture with reasonable effort and at reasonable cost from sheet metal.
  • a twin flow turbine housing according to the present invention may Have half shells, which consist of sheet metal.
  • a twin flow turbine housing according to the present invention may Furthermore, have a partition made of sheet metal
  • twin-flow turbine casing In a twin-flow turbine casing according to the present invention the two half-shells and optionally the partition wall are welded together.
  • the Partition and the half shells matched outer contours.
  • the outer contours of the half-shells lying in the parting plane bent edges have, which are welded together.
  • the half-shells have circular inner contours, at which lying in the parting plane bent edges are formed, which like the outer contours by means of notches and Fortroisn and welding are connectable.
  • twin-flow turbine casing In a twin-flow turbine casing according to the present invention the two inlet channels to a bypass line leading bypass openings and have that this bypass line is divided by an extension of the partition into two partial bypasses is.
  • FIG 1 is a conventional twin turbine engine casing for a turbocharger shown. Such twin housings are used in relatively strong engines and This is done by the exhaust gases of one group of cylinders from the exhaust gases of another group to separate from cylinders.
  • a cylinder may have a plurality of valves and that these valves a certain, for example, controlled by the camshaft Subject opening and closing cycle, with different exhaust valves of the same Cylinders open at different times to gases under different pressure to let out.
  • Fig. 1 is a computer drawing of a known modern one Twin turbine housing 1 for the two separate inlet channels 2 and 3 to one single turbine wheel, not shown, which, as explained above, one Implementation of turbochargers for more powerful engines corresponds.
  • FIG. 2 shows a twin-flow turbine housing (the term “twin”) on the presence of two inlet channels, at which, seen from the outside, only a single inlet duct appears to be present, but in reality is, as in Fig. 2 and 3, the inlet channel of this housing through a partition wall 18 in two axially adjacent parts 13a and 14a divided, thereby two operationally from each other completely separate inlet channels arise.
  • twin twin-flow turbine housing
  • the twin turbine housing of Fig. 2 consists of a double-walled structure, wherein the division into two separate inlet channels only affects the inner housing.
  • the Outer housing consists of two parts 12 and 15 which are connected together at 21.
  • the inner housing consists of two half shells 13 and 14 whose outer edges 20 and 20 ' are bent parallel to the parting surface A (see Fig. 3) and thus welded together can be.
  • the housing of FIG. 2 also has two connection flanges 11 and 16 for connection the catalyst or to the central housing of the turbocharger.
  • said partition Before welding, however, between the two half-shells 13 and 14 a Dividing wall 18 placed, said partition has an outer contour 18 ', with the mutually congruent outer contours 13 'and 14' of the two half-shells 13 and 14th matches.
  • edge portions 31 of the half-shells 13 and 14 may also have notches and extensions be formed as in the outdoor areas.
  • openings 17 and 17 ' are formed on the half-shells 13 and 14'. intended to complement each other in a circle and to divide Bypasses are provided, these openings to one, through a with the openings 17, 17 'welded tube 17 "formed bypass line 22 lead, by means of a Folding valve 19 by means of a controllable from outside the housing lever 23rd is lockable.
  • the partition wall 18 has a continuation 18 ', which projects into the bypass line and this follows up to the seat of the valve 19.
  • the bypass pipe 17 "also of two Half shells and the continuation 18 'of the partition wall 18 further extensions 30th have in notches of bent, axially extending edges of the half-shells of Tube 17 "intervene and are welded.

Abstract

The twin steam spiral turbine housing has two inlet channels that are separated in a fluidic sense for a fluid under pressure that is fed to a turbine wheel and consists of two essentially mutually symmetrical half shells (13',14') that enclose a separating wall (18) between them. Both half shells consist of sheet metal and the separating wall consists of sheet metal.

Description

Gebiet der ErfindungField of the invention

Die vorliegende Erfindung betrifft ein Zwillingsstromturbinengehäuse nach dem Oberbegriff des Anspruchs 1.The present invention relates to a twin-flow turbine housing according to the preamble of claim 1.

Stand der TechnikState of the art

Es ist bekannt, für Turbinen, wie beispielsweise den Turbinenteil eines Turboladers für Kraftfahrzeuge, Turbinengehäuse verschiedener Art zu verwenden.It is known for turbines, such as the turbine part of a turbocharger for Motor vehicles to use turbine housing of various kinds.

In herkömmlicher Weise wurden typisch Turbinengehäuse aus Gusseisen verwendet, welche einen schneckenförmigen Einlassraum für die Verbrennungsgase aufweisen, die vom Motor über einen Krümmer dem Turbinenteil eines Turboladers zugeführt werden, von wo sie dann beispielsweise durch einen Ringspalt, welcher einen Mechanismus zur Variierung der Strömungsgeometrie enthalten kann, dem Turbinenrad zugeführt werden.Conventionally, turbine housings made of cast iron were typically used have a helical inlet space for the combustion gases from the engine be supplied via a manifold to the turbine part of a turbocharger, from where they then For example, by an annular gap, which has a mechanism for varying the Flow geometry may be supplied to the turbine wheel.

Der schneckenförmige Einlassraum umgibt dabei den eigentlichen Turbinenraum und bildet mit diesem zusammen das Turbinengehäuse, in dem das Turbinenrad und der Mechanismus zur Geometrievariierung untergebracht sind.The helical inlet space surrounds the actual turbine chamber and forms with this together the turbine housing in which the turbine wheel and the mechanism are housed for geometry variation.

Es ist bereits vorgeschlagen worden, das Turbinengehäuse aus Blech, vorteilhafter Weise in doppelwandiger Bauweise auszuführen, um einerseits Gewicht zu sparen, aber vor allem, was wichtiger ist, eine zu starke Abkühlung der Abgase des Motors bei kaltem Turbolader zu verhindern, da der nachgeschaltete Katalysator durch die Abgase so schnell wie möglich auf Betriebstemperatur erwärmt werden muss um seine volle Wirkung zu erreichen.It has already been proposed, the turbine housing made of sheet metal, advantageously in double-walled construction, on the one hand to save weight, but above all, what It is more important to over-cool the exhaust gases of the engine when the turbocharger is cold Prevent, as the downstream catalyst through the exhaust gases as soon as possible Operating temperature must be heated to achieve its full effect.

Es gehört zum Stand der Technik, speziell bei stärkeren Motoren, zwei schneckenförmige Einlasskanäle zum Turbolader vorzusehen, und zwar aus Gründen der Trennung von Zylindergruppen deren Ventilöffnungscharakteristiken nicht zusammenpassen.It belongs to the state of the art, especially with stronger engines, two helical Intake channels to provide turbocharger, for the sake of separation of Cylinder groups whose valve opening characteristics do not match.

Es wurde auch vorgeschlagen ein einziges Turbinengehäuse für diese zwei parallel wirkenden Einlasskanäle eines Turboladers einzusetzen, wobei die beiden schneckenförmigen Einlassräume sozusagen axial aneinander angeordnet sind, und die Abgase entweder stromabwärts einem einzigen Turbinenrad eines relativ grossen Turboladers oder zwei verschiedenen Turbinenrädern von zwei parallel wirkenden, kleineren Turboladern zugeführt werden, doch ist bis heute keine Lösung vorgeschlagen worden, wie ein derartiges Zwillingsturbinengehäuse nach einem einfacheren Verfahren als Giessen und aus einem leichteren Material als Gusseisen, beispielsweise Eisenblech gefertigt werden kann.It has also been proposed a single turbine housing for these two parallel acting Insert inlet channels of a turbocharger, the two helical Inlet spaces are arranged so to speak axially against each other, and the exhaust gases either downstream of a single turbine wheel of a relatively large turbocharger or two different turbine wheels supplied by two parallel-acting, smaller turbochargers but no solution has yet been proposed, such as Twin Turbine Housing for a simpler process than casting and from one lighter material than cast iron, such as sheet iron can be made.

Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde ein Zwillingsturbinengehäuse mit vertretbarem Aufwand und zu vertretbaren Kosten aus Blech zu fertigen.The present invention is therefore the object of a twin turbine housing Manufacture with reasonable effort and at reasonable cost from sheet metal.

Diese Aufgabe wird erfindungsgemäss durch die im kennzeichnenden Teil des Anspruchs 1 genannten Merkmale gelöst.This object is achieved by the characterizing part of claim 1 solved mentioned features.

Ein Zwillingsstromturbinengehäuse entsprechend der vorliegenden Erfindung kann Halbschalen aufweisen, die aus Blech bestehen.A twin flow turbine housing according to the present invention may Have half shells, which consist of sheet metal.

Ein Zwillingsstromturbinengehäuse entsprechend der vorliegenden Erfindung kann Ferner eine Trennwand aus Blech aufweisenA twin flow turbine housing according to the present invention may Furthermore, have a partition made of sheet metal

In einem Zwillingsstromturbinengehäuse entsprechend der vorliegenden Erfindung können die beiden Halbschalen und gegebenenfalls die Trennwand miteinander verschweisst sind.In a twin-flow turbine casing according to the present invention the two half-shells and optionally the partition wall are welded together.

In einem Zwillingsstromturbinengehäuse entsprechend der vorliegenden Erfindung kann die Trennwand sowie die Halbschalen aufeinander angepasste Aussenkonturen aufweisen. In a twin-flow turbine casing according to the present invention, the Partition and the half shells matched outer contours.

In einem Zwillingsstromturbinengehäuse entsprechend der vorliegenden Erfindung können die Aussenkonturen der Halbschalen Kerben, und die Aussenkontur der Trennwand Fortsätze aufweisen, die beim Zusammenbau der Halbschalen mit der Trennwand in die Kerben zu liegen kommen und in diesem Zustand miteinander verschweisst werden.In a twin-flow turbine casing according to the present invention the outer contours of the half-shell notches, and the outer contour of the partition extensions in the notches when assembling the half shells with the partition to lie down and be welded together in this state.

In einem Zwillingsstromturbinengehäuse entsprechend der vorliegenden Erfindung können die Aussenkonturen der Halbschalen in der Trennebene liegende umgebogene Ränder aufweisen, die miteinander verschweisst werden.In a twin-flow turbine casing according to the present invention the outer contours of the half-shells lying in the parting plane bent edges have, which are welded together.

In einem Zwillingsstromturbinengehäuse entsprechend der vorliegenden Erfindung können die Halbschalen kreisförmige Innenkonturen aufweisen, an denen in der Trennebene liegende umgebogene Ränder ausgebildet sind, welche wie die Aussenkonturen mittels Kerben und Fortsätzen und Schweissen verbindbar sind.In a twin-flow turbine casing according to the present invention the half-shells have circular inner contours, at which lying in the parting plane bent edges are formed, which like the outer contours by means of notches and Fortsätzen and welding are connectable.

In einem Zwillingsstromturbinengehäuse entsprechend der vorliegenden Erfindung können die beiden Einlasskanäle zu einer Bypassleitung führende Bypassöffnungen aufweisen und dass diese Bypassleitung durch einen Fortsatz der Trennwand in zwei Teilbypässe unterteilt ist.In a twin-flow turbine casing according to the present invention the two inlet channels to a bypass line leading bypass openings and have that this bypass line is divided by an extension of the partition into two partial bypasses is.

Kurze FigurenbeschreibungShort description of the figures

Die Erfindung wird nun an Hand der Zeichnungen näher erläutert, wovon:

Fig. 1
ein herkömmliches Zwillingsstromturbinengehäuse aus Gusseisen in Perspektivansicht,
Fig. 2
ein erfindungsgemässes Zwillingsstromturbinengehäuse in gleicher Ansicht,
Fig. 3
einen Schnitt parallel zur Achse eines Gehäuses nach Fig.2, und
Fig. 4
einen Schnitt senkrecht zur Achse nach Fig. 2
The invention will now be explained in more detail with reference to the drawings, of which:
Fig. 1
a conventional cast iron twin power turbine housing in perspective view,
Fig. 2
a twin stream turbine housing according to the invention in the same view,
Fig. 3
a section parallel to the axis of a housing according to Fig.2, and
Fig. 4
a section perpendicular to the axis of Fig. 2nd

zeigen.demonstrate.

Detaillierte Beschreibung der ZeichnungenDetailed description of the drawings

In Figur 1 ist ein herkömmliches Zwillingsstromturbinengehäuse für einen Turbolader dargestellt. Derartige Zwillingsgehäuse werden eingesetzt bei relativ starken Motoren und dienen dazu die Abgase einer Gruppe von Zylindern von den Abgasen einer anderen Gruppe von Zylindern zu trennen.In Figure 1 is a conventional twin turbine engine casing for a turbocharger shown. Such twin housings are used in relatively strong engines and This is done by the exhaust gases of one group of cylinders from the exhaust gases of another group to separate from cylinders.

Bei einem Viertaktmotor ist es bekannt, dass ein Zylinder mehrere Ventile aufweisen kann und dass diese Ventile einem bestimmten, beispielsweise von der Nockenwelle gesteuerten Öffnungs- und Schliesszyklus unterliegen, wobei verschiedene Abgasventile des gleichen Zylinders zu unterschiedlichen Zeiten öffnen, um Gase unter unterschiedlichem Druck ausströmen zu lassen.In a four-stroke engine, it is known that a cylinder may have a plurality of valves and that these valves a certain, for example, controlled by the camshaft Subject opening and closing cycle, with different exhaust valves of the same Cylinders open at different times to gases under different pressure to let out.

Bei mehr-zylindrigen Motoren wird es daher Phasen geben, in denen beispielweise ein Hochdruckauslassventil eines Zylinders gleichzeitig offen ist wie ein Niederdruckauslassventil eines anderen Zylinders, wobei beide Ventile Abgase in denselben Krümmer zum Turbolader hin abgegeben werden. Dies hat zur Folge dass Gase des Hochdruckauslassventils in den Zylinder dessen Niederdruckauslassventil gleichzeitig offen ist, zurückschlagen können, was vermieden werden muss.In multi-cylinder engines, therefore, there will be phases in which, for example, a High pressure outlet valve of a cylinder is open at the same time as a Low pressure exhaust valve of another cylinder, both valves exhaust gases in the same Manifold are discharged to the turbocharger. This has the consequence that gases of High pressure outlet valve in the cylinder whose low pressure outlet valve open at the same time is able to fight back what needs to be avoided.

Die Fig. 1 ist eine Computerzeichnung eines bekannten modernen Zwillingsstromturbinengehäuses 1 für die beiden getrennten Einlasskanäle 2 und 3 zu einem einzigen, nicht dargestellten Turbinenrad, was, wie oben erläutert worden ist, einer Ausführungsart von Turboladern für stärkere Motoren entspricht.Fig. 1 is a computer drawing of a known modern one Twin turbine housing 1 for the two separate inlet channels 2 and 3 to one single turbine wheel, not shown, which, as explained above, one Implementation of turbochargers for more powerful engines corresponds.

Das gesamte Gehäuse ist aus Gusseisen gefertigt und man erkennt leicht die beiden schneckenförmigen Einlasskanäle 2 und 3, die bis zum Spalt 1' voneinander völlig getrennte Aussenkonturen 2' und 3', und natürlich auch getrennte, Abgas führende Innenräume aufweisen, welche radial zu dem einzigen Ringspalt 1' und hiermit zu ein und demselben, nicht dargestellten, radial innerhalb des Ringspalts 1' liegenden Turbinenrad führen. Ein derartiges Gehäuse ist schon vom Gussprozess her relativ aufwendig und ist auch in Bezug auf sein Gewicht keineswegs optimal an heutige Forderungen nach Treibstoffeffizienz, noch an die oben erwähnte Forderung nach optimaler Katalysierung der Abgase angepasst. Im Gehäuse nach Fig. 1 ist auch ein Bypass vorhanden, der mittels eines Ventils 19 verschliessbar ist. The entire case is made of cast iron and you can easily see the two helical inlet channels 2 and 3, which are completely separate from each other up to the gap 1 ' Outer contours 2 'and 3', and of course separate, exhaust leading interior spaces which radially to the single annular gap 1 'and hereby one and the same, not shown, radially within the annular gap 1 'lying turbine run. One Such housing is already relatively expensive from the casting process and is also in relation by no means optimal on today's demands for fuel efficiency adapted to the above-mentioned requirement for optimal catalyzation of the exhaust gases. in the Housing according to Fig. 1, a bypass is present, by means of a valve 19th is lockable.

Die Figur 2 hingegen zeigt ein Zwillingsstromturbinengehäuse (der Term "Zwillings-) bezieht sich auf das Vorhandensein von zwei Einlasskanälen, bei dem, von aussen her gesehen, nur ein einziger Einlasskanal vorhanden zu sein scheint, in Wirklichkeit ist aber, wie in Fig. 2 und 3 dargestellt ist, der Einlasskanal dieses Gehäuses durch eine Trennwand 18 in zwei axial aneinanderliegende Teile 13a und 14a geteilt, sodass hierdurch zwei operationell voneinander völlig getrennte Einlasskanäle entstehen.By contrast, FIG. 2 shows a twin-flow turbine housing (the term "twin") on the presence of two inlet channels, at which, seen from the outside, only a single inlet duct appears to be present, but in reality is, as in Fig. 2 and 3, the inlet channel of this housing through a partition wall 18 in two axially adjacent parts 13a and 14a divided, thereby two operationally from each other completely separate inlet channels arise.

Das Zwillingsturbinengehäuse von Fig. 2 besteht aus einem doppelwandigen Gebilde, wobei die Teilung in zwei getrennte Einlasskanäle nur das innere Gehäuse betrifft. Das Aussengehäuse besteht aus zwei Teilen 12 und 15, welche miteinander bei 21 verbunden sind. Das innere Gehäuse besteht aus zwei Halbschalen 13 und 14 deren Aussenränder 20 und 20' parallel zur Trennfläche A (siehe Fig. 3) umgebogen sind und so miteinander verschweisst werden können.The twin turbine housing of Fig. 2 consists of a double-walled structure, wherein the division into two separate inlet channels only affects the inner housing. The Outer housing consists of two parts 12 and 15 which are connected together at 21. The inner housing consists of two half shells 13 and 14 whose outer edges 20 and 20 ' are bent parallel to the parting surface A (see Fig. 3) and thus welded together can be.

Das Gehäuse von Fig. 2 weist ferner zwei Anschlussflansche 11 und 16 zum Anschluss an den Katalysator bzw. an das Zentralgehäuse des Turboladers auf.The housing of FIG. 2 also has two connection flanges 11 and 16 for connection the catalyst or to the central housing of the turbocharger.

Vor dem Verschweissen wird jedoch zwischen die beiden Halbschalen 13 und 14 eine Trennwand 18 gelegt, wobei diese Trennwand eine Aussenkontur 18' aufweist, die mit den zueinander kongruenten Aussenkonturen 13' und 14' der beiden Halbschalen 13 und 14 übereinstimmt.Before welding, however, between the two half-shells 13 and 14 a Dividing wall 18 placed, said partition has an outer contour 18 ', with the mutually congruent outer contours 13 'and 14' of the two half-shells 13 and 14th matches.

An den Aussenkonturen 13' und 14' der Halbschalen 13 und 14 werden übereinstimmende Kerben 30' angebracht, sodass beim Zusammenfügen der Halbschalen 13 und 14, sowie der zwischen ihnen liegenden Trennwand 18 schwalbenschwanzförmige Fortsätze 30 der Aussenkontur 18' der Trennwand 18 in die Kerben 30 zu liegen kommen, und nach dem Zusammenfügen dieser drei Teile zuerst die beiden Halbschalen im Bereich der umgebogenen Randbereiche 20 und 20' und hernach die schwalbenschwanzförmigen Fortsätze 30 der Trennwand, die durch die Halbschalen hindurch nach aussen ragen, mit den bereits miteinander verschweissten Rändern 20, 20' der Halbschalen verschweisst werden können.At the outer contours 13 'and 14' of the half-shells 13 and 14 are matching Notches 30 'attached so that when joining the half-shells 13 and 14, and the between them separating wall 18 dovetailed projections 30 of the Outer contour 18 'of the partition 18 come to lie in the notches 30, and after the Assemble these three parts first, the two half shells in the area of the bent Edge regions 20 and 20 'and thereafter the dovetail-shaped extensions 30 of Partition, which protrude through the half-shells to the outside, with the already welded together edges 20, 20 'of the half-shells can be welded.

Hierdurch ergibt sich ein starres Blechgefüge bestehend aus zwei, jeweils den Räumen 13a und 14a zwischen einer Halbschale 13 bzw. 14 und der Trennwand 18 liegenden entsprechenden Kanälen, die im Bereich der Trennwand aneinander liegen. This results in a rigid sheet metal structure consisting of two, respectively the rooms 13a and 14a between a half-shell 13 and 14 and the partition wall 18 lying corresponding channels, which lie in the region of the partition wall to each other.

Wie in Figur 4 dargestellt, weisen die Halbschalen 13und 14 natürlich auch umgebogene Randbereiche 31 entlang ihrer inneren Konturen auf, welche einen Kreis bilden innerhalb dessen das nicht dargestellte Turbinenrad zu liegen kommt. Im Bereich der kreisförmigen Randbereiche 31 der Halbschalen 13 und 14 können natürlich ebenso Kerben und Fortsätze gebildet sein wie in den Aussenbereichen.As shown in Figure 4, the half shells 13 and 14, of course, also bent Edge regions 31 along their inner contours, which form a circle within whose turbine wheel, not shown, comes to rest. In the area of circular Of course, edge portions 31 of the half-shells 13 and 14 may also have notches and extensions be formed as in the outdoor areas.

Wie die Figur 2 weiterhin zeigt, sind an den Halbschalen 13 und 14 Öffnungen 17 und 17' vorgesehen, die sich zusammen zu einem Kreis ergänzen, und die zum Abzweigen von Bypässen vorgesehen sind, wobei diese Öffnungen zu einer, durch ein mit den Öffnungen 17, 17' verschweisstes Rohr 17" gebildeten Bypassleitung 22 führen, die mittels eines Klappventils 19 mittels eines von ausserhalb des Gehäuses steuerbaren Hebels 23 verschliessbar ist.As FIG. 2 further shows, openings 17 and 17 'are formed on the half-shells 13 and 14'. intended to complement each other in a circle and to divide Bypasses are provided, these openings to one, through a with the openings 17, 17 'welded tube 17 "formed bypass line 22 lead, by means of a Folding valve 19 by means of a controllable from outside the housing lever 23rd is lockable.

Die Trennwand 18 weist eine Fortsetzung 18' auf, welche in die Bypassleitung hineinragt und dieser bis zum Sitz des Ventils 19 folgt. Hierzu kann das Bypassrohr 17" ebenfalls aus zwei Halbschalen bestehen und die Fortsetzung 18' der Trennwand 18 weitere Fortsätze 30 aufweisen, die in Kerben von umgebogenen, axial verlaufenden Rändern der Halbschalen des Rohres 17" eingreifen und verschweisst sind.The partition wall 18 has a continuation 18 ', which projects into the bypass line and this follows up to the seat of the valve 19. For this purpose, the bypass pipe 17 "also of two Half shells and the continuation 18 'of the partition wall 18 further extensions 30th have in notches of bent, axially extending edges of the half-shells of Tube 17 "intervene and are welded.

Die Erfindung wurde an Hand eines Ausführungsbeispiels hier oben näher beschrieben, jedoch sind eine Vielzahl von Möglichkeiten zum dauerhaften Zusammenfügen der beiden Halbschalen des Zwillingsturbinengehäuses und der zwischen ihnen liegenden Trennwand denkbar ohne den Bereich der vorliegenden Erfindung zu verlassen oder zu übersteigen.The invention has been described in more detail with reference to an embodiment here above, however, there are a variety of ways to permanently join the two Half shells of the twin turbine housing and the partition wall between them conceivable without departing from or exceeding the scope of the present invention.

Claims (9)

Zwillingsstromturbinengehäuse mit zwei, fluidtechnisch getrennten Einlasskanälen (13a, 14a) für ein Fluid unter Druck, dass einem Turbinenrad zuzuführen ist, dadurch gekennzeichnet, dass das Zwillingsstromturbinengehäuse (1) aus zwei im wesentlichen zueinander symmetrischen Halbschalen (13, 14) gebildet ist, die zwischen ihnen eine Trennwand (18) einschliessen.Twin turbine housing with two fluidly separated inlet channels (13a, 14a) for a fluid under pressure to be supplied to a turbine wheel, characterized in that the twin turbine housing (1) consists of two substantially mutually symmetrical half-shells (13, 14) interposed between enclose a partition wall (18). Zwillingsstromturbinengehäuse nach Anspruch 1, dadurch gekennzeichnet, dass die beiden Halbschalen (13,24) aus Blech bestehen.Twin turbine housing according to claim 1, characterized in that the two half shells (13,24) consist of sheet metal. Zwillingsstromturbinengehäuse nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Trennwand (18) aus Blech besteht.Twin turbine housing according to claim 1 or 2, characterized in that the partition wall (18) consists of sheet metal. Zwillingsstromturbinengehäuse nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die beiden Halbschalen (13, 14) und gegebenenfalls die Trennwand (18) miteinander verschweisst sind.Twin turbine housing according to one of the preceding claims, characterized in that the two half shells (13, 14) and optionally the partition wall (18) are welded together. Zwillingsstromturbinengehäuse nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Trennwand (18) sowie die Halbschalen (13, 14) aufeinander angepasste Aussenkonturen (13', 14', 18') aufweisen.Twin-flow turbine housing according to one of the preceding claims, characterized in that the dividing wall (18) and the half-shells (13, 14) have mutually adapted outer contours (13 ', 14', 18 '). Zwillingsstromturbinengehäuse nach Anspruch 5, dadurch gekennzeichnet, dass die Aussenkonturen (13', 14') der Halbschalen Kerben (30'), und die Aussenkontur (18') der Trennwand (18) Fortsätze (30) aufweisen, die beim Zusammenbau der Halbschalen mit der Trennwand in die Kerben (30') zu liegen kommen und in diesem Zustand miteinander verschweisst werden.Twin turbine housing according to claim 5, characterized in that the outer contours (13 ', 14') of the half-shell notches (30 '), and the outer contour (18') of the partition wall (18) extensions (30), which in the assembly of the half-shells with the partition come to lie in the notches (30 ') and are welded together in this state. Zwillingsstromturbinengehäuse nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Aussenkonturen (13', 14') der Halbschalen in der Trennebene (A) liegende umgebogene Ränder (20, 20') aufweisen, die miteinander verschweisst werden. Twin-flow turbine housing according to one of the preceding claims, characterized in that the outer contours (13 ', 14') of the half-shells in the parting plane (A) lying bent edges (20, 20 ') which are welded together. Zwillingsturbinengehäuse nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Halbschalen kreisförmige Innenkonturen aufweisen, an denen in der Trennebene (A) liegende umgebogene Ränder (31) ausgebildet sind, welche wie die Aussenkonturen mittels Kerben (30) und Fortsätzen (30) und Schweissen verbindbar sind.Twin turbine housing according to one of the preceding claims, characterized in that the half-shells have circular inner contours on which in the parting plane (A) lying bent edges (31) are formed, which like the outer contours by means of notches (30) and extensions (30) and welding are connectable. Zwillingsstromturbinengehäuse nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die beiden Einlasskanäle (13a, 14a) zu einer Bypassleitung (22) führende Bypassöffnungen (17, 17') aufweisen und dass diese Bypassleitung (22) durch einen Fortsatz (18') der Trennwand (18) in zwei Teilbypässe unterteilt ist.Twin flow turbine housing according to one of the preceding claims, characterized in that the two inlet channels (13a, 14a) to a bypass line (22) leading bypass openings (17, 17 ') and that said bypass line (22) through an extension (18') of the partition (18) is divided into two partial bypasses.
EP03016529A 2003-07-23 2003-07-23 Double flow scroll Withdrawn EP1500788A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP03016529A EP1500788A1 (en) 2003-07-23 2003-07-23 Double flow scroll
US10/897,727 US20050019158A1 (en) 2003-07-23 2004-07-23 Twin flow turbine housing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03016529A EP1500788A1 (en) 2003-07-23 2003-07-23 Double flow scroll

Publications (1)

Publication Number Publication Date
EP1500788A1 true EP1500788A1 (en) 2005-01-26

Family

ID=33483922

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03016529A Withdrawn EP1500788A1 (en) 2003-07-23 2003-07-23 Double flow scroll

Country Status (2)

Country Link
US (1) US20050019158A1 (en)
EP (1) EP1500788A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009015353A1 (en) * 2009-03-27 2010-09-30 Bosch Mahle Turbo Systems Gmbh & Co. Kg Loading device i.e. exhaust-gas turbocharger, for motor vehicle, has turbine housing with cartridge forming inner and outer walls within area of connection at housing and within area of channel, and spiral housing arranged at cartridge
US10436069B2 (en) 2017-01-30 2019-10-08 Garrett Transportation I Inc. Sheet metal turbine housing with biaxial volute configuration
US10472988B2 (en) 2017-01-30 2019-11-12 Garrett Transportation I Inc. Sheet metal turbine housing and related turbocharger systems
US10494955B2 (en) 2017-01-30 2019-12-03 Garrett Transportation I Inc. Sheet metal turbine housing with containment dampers
US10544703B2 (en) 2017-01-30 2020-01-28 Garrett Transportation I Inc. Sheet metal turbine housing with cast core
US10690144B2 (en) 2017-06-27 2020-06-23 Garrett Transportation I Inc. Compressor housings and fabrication methods
US11732729B2 (en) 2021-01-26 2023-08-22 Garrett Transportation I Inc Sheet metal turbine housing

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004042127B4 (en) * 2004-08-30 2006-07-13 Daimlerchrysler Ag Rotor-stator device with squish coating, method for its production and use
JP2010025104A (en) 2008-07-16 2010-02-04 Borgwarner Inc Thermally operated bypass valve for controlling passive warm up of after-treatment device
WO2010123787A2 (en) * 2009-04-21 2010-10-28 Borgwarner Inc. A method for improving the light-off or regeneration behavior of an aftertreatment device in a vehicle system
DE102010011375A1 (en) 2010-03-12 2011-09-15 Bosch Mahle Turbo Systems Gmbh & Co. Kg Turbine / compressor housing
JP6126246B2 (en) * 2013-12-27 2017-05-10 三菱重工業株式会社 Turbine housing

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2801043A (en) * 1954-08-24 1957-07-30 Thompson Prod Inc Turbine supercharger
GB1199158A (en) * 1966-11-25 1970-07-15 Cav Ltd Casings for Radial Flow Fluid Turbines e.g. of Turbo-Superchargers for I.C. Engines
GB1263932A (en) * 1969-06-27 1972-02-16 Cav Ltd Turbo superchargers
DE3232925A1 (en) * 1981-10-14 1983-04-28 Wallace Murray Corp., 10171 New York, N.Y. TURBOCHARGER WITH DIVIDED TURBINE HOUSING
EP0204509A1 (en) * 1985-05-29 1986-12-10 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Housing for turbocharger
EP0281345A1 (en) * 1987-03-02 1988-09-07 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Turbine casing for turbocharger
DE10218436C1 (en) * 2002-04-25 2003-08-14 Benteler Automobiltechnik Gmbh Exhaust gas turbine for IC engine turbocharger has double-walled housing enclosing turbine wheel provided by inner and outer mantles each having 2 half shells

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6267237A (en) * 1985-09-18 1987-03-26 Hitachi Ltd Two passage type exhaust gas driven turbo charger

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2801043A (en) * 1954-08-24 1957-07-30 Thompson Prod Inc Turbine supercharger
GB1199158A (en) * 1966-11-25 1970-07-15 Cav Ltd Casings for Radial Flow Fluid Turbines e.g. of Turbo-Superchargers for I.C. Engines
GB1263932A (en) * 1969-06-27 1972-02-16 Cav Ltd Turbo superchargers
DE3232925A1 (en) * 1981-10-14 1983-04-28 Wallace Murray Corp., 10171 New York, N.Y. TURBOCHARGER WITH DIVIDED TURBINE HOUSING
EP0204509A1 (en) * 1985-05-29 1986-12-10 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Housing for turbocharger
EP0281345A1 (en) * 1987-03-02 1988-09-07 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Turbine casing for turbocharger
DE10218436C1 (en) * 2002-04-25 2003-08-14 Benteler Automobiltechnik Gmbh Exhaust gas turbine for IC engine turbocharger has double-walled housing enclosing turbine wheel provided by inner and outer mantles each having 2 half shells

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009015353A1 (en) * 2009-03-27 2010-09-30 Bosch Mahle Turbo Systems Gmbh & Co. Kg Loading device i.e. exhaust-gas turbocharger, for motor vehicle, has turbine housing with cartridge forming inner and outer walls within area of connection at housing and within area of channel, and spiral housing arranged at cartridge
US10436069B2 (en) 2017-01-30 2019-10-08 Garrett Transportation I Inc. Sheet metal turbine housing with biaxial volute configuration
US10472988B2 (en) 2017-01-30 2019-11-12 Garrett Transportation I Inc. Sheet metal turbine housing and related turbocharger systems
US10494955B2 (en) 2017-01-30 2019-12-03 Garrett Transportation I Inc. Sheet metal turbine housing with containment dampers
US10544703B2 (en) 2017-01-30 2020-01-28 Garrett Transportation I Inc. Sheet metal turbine housing with cast core
US11035254B2 (en) 2017-01-30 2021-06-15 Garrett Transportation I Inc Sheet metal turbine housing with cast core
US10690144B2 (en) 2017-06-27 2020-06-23 Garrett Transportation I Inc. Compressor housings and fabrication methods
US11732729B2 (en) 2021-01-26 2023-08-22 Garrett Transportation I Inc Sheet metal turbine housing

Also Published As

Publication number Publication date
US20050019158A1 (en) 2005-01-27

Similar Documents

Publication Publication Date Title
EP1812698B1 (en) Exhaust-gas turbocharger for an internal combustion engine
DE10061846B4 (en) Exhaust gas turbocharger for an internal combustion engine
DE19618160C2 (en) Exhaust gas turbocharger for an internal combustion engine
DE112015002367B4 (en) Double spiral turbocharger to optimize the pulse energy separation for fuel economy and EGR use via asymmetrical double spirals
EP0864737B1 (en) Control device for a pressure-charged internal combustion engine
DE10229116A1 (en) Internal combustion engine and method for operating such
DE10307028B3 (en) Exhaust gas manifold for automobile IC engine has channels feeding exhaust gas received from engine cylinders to turbine wheel of exhaust gas turbine of turbocharger
DE3321691A1 (en) RADIAL TURBINE HOUSING FOR AN EXHAUST GAS TURBOCHARGER AND METHOD FOR OPERATING THE SAME
EP1394380A1 (en) Supercharging system for an internal combustion engine
WO2007042209A1 (en) Arrangement for recirculating and cooling exhaust gas of an internal combustion engine
DE10212675A1 (en) Exhaust gas turbocharger in an internal combustion engine
DE112010003626T5 (en) Exhaust gas supply device of a turbine wheel of an exhaust gas turbocharger
DE10048237A1 (en) Exhaust gas turbocharger, supercharged internal combustion engine and method therefor
EP1500788A1 (en) Double flow scroll
DE102010032363A1 (en) EGR removal immediately downstream of a turbo-charged catalyst
DE2360468A1 (en) TURBINE HOUSING
DE102014217333A1 (en) Multi-stage turbocharger system for an internal combustion engine
EP1865188A1 (en) Vibration dampener for charged motors
DE102017201468A1 (en) Turbocharger for an internal combustion engine
DE10028733A1 (en) Exhaust turbine for turbocharger ha guide blades with flow intake edges and/or outflow edges at angle relative to jacket line, and cover rings to connected blade ends
EP1382816A2 (en) Arrangement of at least two turbo compressors
DE3100107A1 (en) Turbocharger for internal combustion engines
DE2721314B2 (en) Box-shaped support structure for a turbocharger of an internal combustion engine
DE102008016937A1 (en) Exhaust gas turbocharger for an internal combustion engine
EP3061931B1 (en) Exhaust gas system for a combustion engine

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

17P Request for examination filed

Effective date: 20050119

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: BORGWARNER INC.

AKX Designation fees paid

Designated state(s): DE FR GB IT NL

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20060811