DE102008031724A1 - Twin-scroll turbocharger for an internal combustion engine - Google Patents
Twin-scroll turbocharger for an internal combustion engine Download PDFInfo
- Publication number
- DE102008031724A1 DE102008031724A1 DE102008031724A DE102008031724A DE102008031724A1 DE 102008031724 A1 DE102008031724 A1 DE 102008031724A1 DE 102008031724 A DE102008031724 A DE 102008031724A DE 102008031724 A DE102008031724 A DE 102008031724A DE 102008031724 A1 DE102008031724 A1 DE 102008031724A1
- Authority
- DE
- Germany
- Prior art keywords
- exhaust gas
- twin
- exhaust
- scroll
- scroll turbocharger
- 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- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas- turbine plants for special use
- F02C6/04—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output
- F02C6/10—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output supplying working fluid to a user, e.g. a chemical process, which returns working fluid to a turbine of the plant
- F02C6/12—Turbochargers, i.e. plants for augmenting mechanical power output of internal-combustion piston engines by increase of charge pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/02—Gas passages between engine outlet and pump drive, e.g. reservoirs
- F02B37/025—Multiple scrolls or multiple gas passages guiding the gas to the pump drive
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/08—Other arrangements or adaptations of exhaust conduits
- F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
- F01N13/107—More than one exhaust manifold or exhaust collector
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2250/00—Geometry
- F05D2250/50—Inlet or outlet
- F05D2250/51—Inlet
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
Twin-scroll-Abgasturbolader für eine Brennkraftmaschine mit zumindest zwei Zylindern, wobei der Twin-scroll-Abgasturbolader ein Turbinengehäuse (1) mit einem Abgaseinlassflansch (2) mit zwei Abgaseinlässen (3, 4) mit einem Einströmquerschnitt aufweist, wobei jeder Abgaseinlass (3, 4) mit einem Zylinder (Z1, Z2, Z3, Z4) abgasführend verbindbar ist und wobei sich jeder Abgaseinlass (3, 4) in dem Turbinengehäuse (1) als ein Spiralkanal um die Turbine des Twin-scroll-Abgasturboladers herumstreckt, wobei die Einströmquerschnitte weitgehend kreisrund sind. Durch die erfindungsgemäße Ausgestaltung wird die Fertigung des Twin-scroll-Abgasturboladers wesentlich vereinfacht und die Anströmung der Turbine deutlich verbessert.Twin-scroll turbocharger for an internal combustion engine having at least two cylinders, the twin-scroll turbocharger having a turbine housing (1) with a Abgaseinlassflansch (2) with two exhaust gas inlets (3, 4) having an inlet cross-section, each exhaust inlet (3, 4) with a cylinder (Z1, Z2, Z3, Z4) is connectable exhaust gas and wherein each exhaust inlet (3, 4) in the turbine housing (1) as a spiral channel around the turbine of the twin-scroll exhaust gas turbocharger stretches, wherein the inflow cross sections are largely circular. The inventive design, the production of the twin-scroll exhaust gas turbocharger is substantially simplified and the flow of the turbine significantly improved.
Description
Die Erfindung betrifft einen Twin-scroll-Abgasturbolader für eine Brennkraftmaschine mit den Merkmalen aus dem Oberbegriff des Patentanspruchs 1.The The invention relates to a twin-scroll turbocharger for an internal combustion engine having the features of the preamble of Patent claim 1.
Die
Erfindung geht von der deutschen Offenlegungsschrift
Nachteilig bei der beschriebenen Ausgestaltung ist eine relativ aufwändige Fertigung des Turbinengehäuses, insbesondere des Abgaseinlassflansches.adversely in the described embodiment is a relatively expensive Production of the turbine housing, in particular the Abgaseinlassflansches.
Aufgabe der vorliegenden Erfindung ist es, ein Turbinengehäuse aufzuzeigen, welches einfach zu fertigen ist bei gleichzeitig verbesserter Anströmung der Turbine mit Abgasen.task The present invention is a turbine housing To show which is easy to manufacture with improved at the same time Flow of the turbine with exhaust gases.
Diese Aufgabe wird durch das Merkmal im kennzeichnenden Teil des Patentanspruchs 1 gelöst.These The object is achieved by the feature in the characterizing part of the claim 1 solved.
Aufgrund der weitgehend kreisrund ausgestalteten Einströmquerschnitte sind diese einerseits besonders einfach spanend, wie z. B. durch Fräsen, Bohren usw. oder auch spanlos, z. B. mit Gießverfahren, zu fertigen, wobei gleichzeitig eine stoßfreiere Anbindung der Abgasführenden Oberflächen an einen Abgaskrümmer möglich ist. Durch diese stoßfreiere Anbindung des Abgasturboladers an den Abgaskrümmer werden die Strömungsverluste minimiert, wodurch die Anströmung der Turbine des Abgasturboladers mit Abgas verbessert wird.by virtue of the largely circular inflow cross sections These are on the one hand very easy to machine, such. B. by Milling, drilling, etc. or without cutting, z. B. with casting, to manufacture, while a bumpless connection the exhaust-carrying surfaces to an exhaust manifold is possible. Through this bumpless connection the exhaust gas turbocharger to the exhaust manifold are the flow losses minimized, causing the flow to the turbine of the exhaust gas turbocharger is improved with exhaust.
Durch die Anordnung der Abgaseinlässe gemäß Patentanspruch 2 ist die Geometrie des Abgaskrümmers einfacher festlegbar.By the arrangement of the exhaust gas inlets according to claim 2, the geometry of the exhaust manifold is easier to fix.
Der erfindungsgemäße Twin-scroll-Abgasturbolader kann durch die Ausgestaltung gemäß Patentanspruch 3 für jede mehrzylindrige Brennkraftmaschine eingesetzt werden, unabhängig von der Zylinderzahl.Of the inventive twin-scroll turbocharger can by the embodiment according to claim 3 be used for any multi-cylinder internal combustion engine, regardless of the number of cylinders.
Die Ausgestaltung gemäß Patentanspruch 4 ist eine besonders bevorzugte Ausführungsvariante.The Embodiment according to claim 4 is a particularly preferred embodiment.
Die Ausgestaltung gem. Patentanspruch 5 verbessert nochmals die Anströmung der Turbine mit Abgas und verbessert den Wirkungsgrad des Abgasturboladers nochmals erheblich.The Design acc. Claim 5 further improves the flow the turbine with exhaust gas and improves the efficiency of the exhaust gas turbocharger again considerably.
Im Folgenden ist die Erfindung anhand eines besonders bevorzugten Ausführungsbeispieles in drei Figuren näher erläutert.in the The following is the invention with reference to a particularly preferred embodiment explained in more detail in three figures.
Zusammengefasst
ergeben sich folgende Vorteile:
Die erfindungsgemäße
Ausgestaltung führt zu einer Kosteneinsparung durch eine
kompakte Turbinengehäuseausgestaltung aufgrund einer Materialersparnis,
insbesondere im Bereich des Abgaseinlassflansches
The embodiment according to the invention leads to a cost saving by a compact turbine housing design due to a saving of material, in particular in the area of the exhaust gas inlet flange
- 11
- Turbinengehäuseturbine housing
- 22
- Abgaseinlassflanschexhaust inlet
- 33
- Abgaseinlassexhaust inlet
- 44
- Abgaseinlassexhaust inlet
- 55
- Abgaskrümmerexhaust manifold
- 66
- KanalübergangChannel transition
- 77
- KanalübergangChannel transition
- 88th
- Spiralkanalspiral channel
- 99
- Spiralkanalspiral channel
- 1010
- Bypasskanalbypass channel
- 1111
- Bypasskanalbypass channel
- Z1Z1
- Zylinder 1cylinder 1
- Z2Z2
- Zylinder 2cylinder 2
- Z3Z3
- Zylinder 3cylinder 3
- Z4Z4
- Zylinder 4cylinder 4
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 102006002130 A1 [0002, 0002] - DE 102006002130 A1 [0002, 0002]
Claims (5)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008031724A DE102008031724A1 (en) | 2008-07-04 | 2008-07-04 | Twin-scroll turbocharger for an internal combustion engine |
PCT/EP2009/004389 WO2010000391A1 (en) | 2008-07-04 | 2009-06-18 | Twin-scroll exhaust gas turbo charger for an internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008031724A DE102008031724A1 (en) | 2008-07-04 | 2008-07-04 | Twin-scroll turbocharger for an internal combustion engine |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102008031724A1 true DE102008031724A1 (en) | 2010-01-07 |
Family
ID=41130585
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102008031724A Withdrawn DE102008031724A1 (en) | 2008-07-04 | 2008-07-04 | Twin-scroll turbocharger for an internal combustion engine |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE102008031724A1 (en) |
WO (1) | WO2010000391A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011054516B4 (en) * | 2010-12-09 | 2016-02-04 | Hyundai Motor Co. | Casting for gravity casting |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006002130A1 (en) | 2006-01-17 | 2007-08-02 | Bayerische Motoren Werke Ag | Twin-scroll turbocharger |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE501076A (en) * | ||||
DE849038C (en) * | 1942-05-23 | 1952-09-11 | Alfred Dr-Ing Buechi | Gas turbine |
DE1476757A1 (en) * | 1966-10-11 | 1969-10-30 | Daimler Benz Ag | Internal combustion piston engine with several combustion chambers and at least one exhaust gas turbine |
DE10307028B3 (en) * | 2003-02-20 | 2004-05-13 | Benteler Automobiltechnik Gmbh | 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 |
-
2008
- 2008-07-04 DE DE102008031724A patent/DE102008031724A1/en not_active Withdrawn
-
2009
- 2009-06-18 WO PCT/EP2009/004389 patent/WO2010000391A1/en active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006002130A1 (en) | 2006-01-17 | 2007-08-02 | Bayerische Motoren Werke Ag | Twin-scroll turbocharger |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011054516B4 (en) * | 2010-12-09 | 2016-02-04 | Hyundai Motor Co. | Casting for gravity casting |
Also Published As
Publication number | Publication date |
---|---|
WO2010000391A1 (en) | 2010-01-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OR8 | Request for search as to paragraph 43 lit. 1 sentence 1 patent law | ||
8139 | Disposal/non-payment of the annual fee | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20110201 |