DE19641467C5 - Secondary air system - Google Patents
Secondary air system Download PDFInfo
- Publication number
- DE19641467C5 DE19641467C5 DE19641467A DE19641467A DE19641467C5 DE 19641467 C5 DE19641467 C5 DE 19641467C5 DE 19641467 A DE19641467 A DE 19641467A DE 19641467 A DE19641467 A DE 19641467A DE 19641467 C5 DE19641467 C5 DE 19641467C5
- Authority
- DE
- Germany
- Prior art keywords
- secondary air
- turbine
- air system
- internal combustion
- combustion engine
- 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.)
- Expired - Lifetime
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
- F01N3/24—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 characterised by constructional aspects of converting apparatus
- F01N3/30—Arrangements for supply of additional air
- F01N3/32—Arrangements for supply of additional air using air pump
-
- 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
- F01N3/24—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 characterised by constructional aspects of converting apparatus
- F01N3/30—Arrangements for supply of additional air
- F01N3/303—Filtering additional air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/34—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with compressors, turbines or the like in the recirculation passage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/36—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with means for adding fluids other than exhaust gas to the recirculation passage; with reformers
-
- 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
- F02B37/12—Control of the pumps
- F02B37/16—Control of the pumps by bypassing charging air
- F02B37/164—Control of the pumps by bypassing charging air the bypassed air being used in an auxiliary apparatus, e.g. in an air turbine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
- F02D2009/0201—Arrangements; Control features; Details thereof
- F02D2009/0283—Throttle in the form of an expander
-
- 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
Sekundärluftsystem für eine Brennkraftmaschine, bestehend aus wenigstens einer Leitung zum Einblasen der Sekundärluft in das Abgasrohr der Brennkraftmaschine (10) sowie einer Förderpumpe (13), wobei der Antrieb der Förderpumpe (13) über eine von der Ansaugluft beaufschlagten Turbine (14) erfolgt und eine Aufbereitungseinrichtung (17) für die Sekundärluft vorgesehen ist, wobei die Regelung der Turbine (14) durch eine variable Turbinengeometrie in Form eines im Eintrittsquerschnitt der Turbine axial verschiebbaren Konus erfolgt.Secondary air system for one Internal combustion engine, consisting of at least one line for blowing the secondary air in the exhaust pipe of the internal combustion engine (10) and a feed pump (13), wherein the drive of the feed pump (13) about a turbine (14) acted upon by the intake air takes place and a processing device (17) for the secondary air is provided is, wherein the control of the turbine (14) by a variable turbine geometry in the form of an axially displaceable in the inlet cross-section of the turbine Cone occurs.
Description
Die Erfindung betrifft ein Sekundärluftsystem für eine Brennkraftmaschine.The The invention relates to a secondary air system for an internal combustion engine.
Es
ist bekannt, zur Verbesserung der Aufoxydation der Kohlenwasserstoffe
und Kohlenmonoxyde sogenannte Sekundärluft, d. h. zusätzliche
Luft auf der Abgasseite der Brennkraftmaschine einzublasen. Aus
der
Diese Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst.These The object is solved by the features of claim 1.
Die
Während in
Die Reinluft zum Antrieb der Turbine des Sekundärluftladers kühlt sich bei der Expansion in der Turbine sehr stark ab. Infolgedessen könnte Wasser aus der Ansaugluft auskondensieren oder evtl. gefrieren. Zur Vermeidung der Ansammlung von Feuchtigkeit wird in einer Weiterbildung der Erfindung vorgeschlagen, einen Wasserabscheider, z. B. eine Prallplatte oder ein Vlies auf der Niederdruckseite der Turbine in die Zuleitung der expandierten Luft zum Plenum einzubauen. Es besteht auch die Möglichkeit, einen Eisabscheider in der Form einer Prallplatte oder eines Vlieses auf der Niederdruckseite der Turbine vorzusehen.The Clean air to drive the turbine of the secondary air charger cools in the expansion in the turbine very strong. As a result, water could leak out Condens out the intake air or possibly freeze. To avoid The accumulation of moisture is in a development of Invention proposed a water separator, z. B. a baffle plate or a fleece on the low-pressure side of the turbine in the supply line to install the expanded air to the plenum. There is also the Possibility, an ice separator in the form of a baffle or a fleece to provide on the low pressure side of the turbine.
In einer weiteren Ausgestaltung der Erfindung wird vorgeschlagen, den Sekundärluftlader mit dem Motorsaugrohr zu einer Einheit zu montieren. Alternativ hierzu besteht auch die Möglichkeit, den Sekundärluftlader mit dem Drosselklappenstutzen in ein Modul zu integrieren. Weitere Varianten sind die Integration des Sekundärluftladers in dem Reinluftrohr, in dem Luftfiltergehäuse oder in der Zylinderkopfabdeckung. Selbstverständlich besteht auch die Möglichkeit, den Sekundärluftlader mit einem anderen beliebigen Bauteil zu einer Einheit zu montieren bzw. als Modul zu gestalten.In A further embodiment of the invention is proposed, the Secondary air charger with the engine intake manifold to a unit to assemble. alternative this is also possible the secondary air charger to integrate with the throttle body in a module. Further Variants are the integration of the secondary air charger in the clean air tube, in the air filter housing or in the cylinder head cover. Of course, there is also the possibility the secondary air charger with any other component to assemble into one unit or as a module.
In
einer weiteren Ausgestaltung der Erfindung wird vorgeschlagen, sowohl
die Motorleistung als auch die Sekundärluftladerleistung über den
dem Sekundärluftlader
zuge führten
Luftmassenstrom zu regeln. Dazu ist, wie in
Im
geöffneten
Zustand der Ventile erfolgt die Leistungsregelung der Brennkraftmaschine über die Drosselstelle
Eine
weitere Möglichkeit
zur Regelung der Motor- bzw. der Sekundärluftladerleistung besteht darin,
daß der
Strömungsquerschnitt
für den
Massenstrom der Turbine
Gemäß
In einer bevorzugten Ausgestaltung der Erfindung kann die Turbine im Montagespritzgießen hergestellt werden, das bedeutet, daß sämtliche Teile in einem einzigen Werkzeug nacheinander spritztechnisch hergestellt werden. Selbstverständlich besteht auch die Möglichkeit, z. B. das Turbinengehäuse aus einem metallischen Werkstoff herzustellen und die verstellbaren Leitschaufeln sowie den Verstellmechanismus in Kunststoffspritzgießtechnik zu produzieren.In In a preferred embodiment of the invention, the turbine in the Assembly injection molding made that means that all Parts produced in a single tool successively injection molding become. Of course there is also the possibility z. B. the turbine housing made of a metallic material and the adjustable Guide vanes and the adjustment mechanism in plastic injection molding to produce.
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19641467A DE19641467C5 (en) | 1996-10-09 | 1996-10-09 | Secondary air system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19641467A DE19641467C5 (en) | 1996-10-09 | 1996-10-09 | Secondary air system |
Publications (3)
Publication Number | Publication Date |
---|---|
DE19641467A1 DE19641467A1 (en) | 1998-04-16 |
DE19641467C2 DE19641467C2 (en) | 2001-02-01 |
DE19641467C5 true DE19641467C5 (en) | 2007-08-09 |
Family
ID=7808175
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19641467A Expired - Lifetime DE19641467C5 (en) | 1996-10-09 | 1996-10-09 | Secondary air system |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE19641467C5 (en) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19937781A1 (en) * | 1999-08-10 | 2001-02-15 | Mann & Hummel Filter | Internal combustion engine with secondary air intake system |
DE10028699B4 (en) * | 2000-06-09 | 2008-09-25 | Volkswagen Ag | Motor vehicle and method for heating a catalytic converter of an internal combustion engine after a cold start |
DE10064481A1 (en) * | 2000-12-22 | 2002-07-04 | Mann & Hummel Filter | Internal combustion engine with secondary air charging and method for controlling the secondary air charger |
DE10159097A1 (en) | 2001-12-01 | 2003-06-12 | Mahle Filtersysteme Gmbh | Intake air filter for an internal combustion engine |
DE10235341B4 (en) * | 2002-08-02 | 2005-09-01 | Audi Ag | motor vehicle |
DE10252153A1 (en) * | 2002-11-09 | 2004-05-19 | Daimlerchrysler Ag | Internal combustion engine for a gas feed has an intake pipe fitted with a throttle element in an intake pipe, an exhaust gas system and a gas-feeder system |
DE10335260A1 (en) * | 2003-08-01 | 2005-02-17 | Daimlerchrysler Ag | Secondary air conveyor for an internal combustion engine |
DE10335261A1 (en) * | 2003-08-01 | 2005-02-17 | Daimlerchrysler Ag | Compressor and / or turbine wheel for a secondary air conveyor |
DE10347842A1 (en) * | 2003-10-10 | 2005-04-28 | Daimler Chrysler Ag | Compressor and turbine wheel for a secondary air delivery unit is constituted as a single component with compressor and turbine blades |
DE102004017608A1 (en) * | 2004-04-07 | 2005-10-27 | Mann + Hummel Gmbh | Internal combustion engine, has vacuum controlled diaphragm box, which opens valve that is arranged in supply pipe when definite pressure difference is achieved, so that negative pressure impulse is produced, which acts on turbo-engine |
DE102005021953A1 (en) | 2005-05-12 | 2006-11-16 | Volkswagen Ag | Internal combustion engine and method for operating this |
DE102014109805A1 (en) * | 2014-07-11 | 2016-01-14 | Fev Gmbh | Exhaust gas recirculation system for an internal combustion engine and method for operating such an exhaust gas recirculation system |
DE102015207791B4 (en) | 2015-04-28 | 2018-11-15 | Ford Global Technologies, Llc | motor vehicle |
DE102022001621A1 (en) | 2022-05-09 | 2022-07-14 | Mercedes-Benz Group AG | Internal combustion engine for a motor vehicle, in particular for a motor vehicle |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4219267A1 (en) * | 1992-06-12 | 1993-12-16 | Pierburg Gmbh | Secondary air inlet for IC engine emission control - has turbocharger driven by inlet airflow to power secondary airflow. |
EP0609674A2 (en) * | 1993-02-03 | 1994-08-10 | Nartron Corporation | Induction air driven alternator and method for converting intake air energy into electrical energy |
-
1996
- 1996-10-09 DE DE19641467A patent/DE19641467C5/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4219267A1 (en) * | 1992-06-12 | 1993-12-16 | Pierburg Gmbh | Secondary air inlet for IC engine emission control - has turbocharger driven by inlet airflow to power secondary airflow. |
EP0609674A2 (en) * | 1993-02-03 | 1994-08-10 | Nartron Corporation | Induction air driven alternator and method for converting intake air energy into electrical energy |
Non-Patent Citations (1)
Title |
---|
Dubbel, Taschenbuch für den Maschinenbau, 1961, S. 298-303 * |
Also Published As
Publication number | Publication date |
---|---|
DE19641467A1 (en) | 1998-04-16 |
DE19641467C2 (en) | 2001-02-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8110 | Request for examination paragraph 44 | ||
D2 | Grant after examination | ||
8363 | Opposition against the patent | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: MANN + HUMMEL GMBH, 71638 LUDWIGSBURG, DE |
|
8366 | Restricted maintained after opposition proceedings | ||
8392 | Publication of changed patent specification | ||
R071 | Expiry of right |