EP1138926B1 - System of air intake conduits for a combustion engine - Google Patents
System of air intake conduits for a combustion engine Download PDFInfo
- Publication number
- EP1138926B1 EP1138926B1 EP01104236A EP01104236A EP1138926B1 EP 1138926 B1 EP1138926 B1 EP 1138926B1 EP 01104236 A EP01104236 A EP 01104236A EP 01104236 A EP01104236 A EP 01104236A EP 1138926 B1 EP1138926 B1 EP 1138926B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- air intake
- intake conduits
- flat
- exhaust gas
- slide valve
- 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
Images
Classifications
-
- 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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10209—Fluid connections to the air intake system; their arrangement of pipes, valves or the like
- F02M35/10222—Exhaust gas recirculation [EGR]; Positive crankcase ventilation [PCV]; Additional air admission, lubricant or fuel vapour admission
-
- 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
- F02M26/17—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system
- F02M26/21—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system with EGR valves located at or near the connection to the intake system
-
- 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
- F02M26/38—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with two or more EGR valves disposed in parallel
-
- 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
- F02M26/65—Constructional details of EGR valves
- F02M26/70—Flap valves; Rotary valves; Sliding valves; Resilient valves
-
- 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
- F02M26/42—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories having two or more EGR passages; EGR systems specially adapted for engines having two or more cylinders
- F02M26/44—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories having two or more EGR passages; EGR systems specially adapted for engines having two or more cylinders in which a main EGR passage is branched into multiple passages
Definitions
- the invention relates to an air intake duct system for an internal combustion engine with an air intake duct housing, the individual to each cylinder of the Internal combustion engine leading air intake channels, with an exhaust gas recirculation channel, its exhaust gas recirculation into the individual air intake ducts can be controlled by one valve element each.
- Such an air intake duct system is for example from DE-A1-198 16 266 known.
- This air intake duct system ensures exhaust gas recirculation without the disadvantage that when the internal combustion engine is operating at full load, if no exhaust gas is recirculated there will be a pressure equalization between the air intake ducts leading to the individual cylinder of the internal combustion engine comes, causing the vibration behavior of the intake air in the engine is disturbed and the filling of the cylinders is reduced.
- the attachment of the individual channels with the respective valve sections is however difficult to construct and expensive.
- the air intake duct system Has cover element which is arranged on the air intake duct housing in such a way is that between the cover member and the air intake duct housing the exhaust gas recirculation channel is formed, the cover element the valve elements designed as flat slide elements and a drive mechanism for adjusting the flat slide elements has and everyone Air intake duct has an exhaust gas inlet opening with a flat seat, which with the Flat slide element interacts.
- the flat slide elements are as Flat rotary slide elements, wherein the exhaust gas inlet opening as semicircular ring pieces are formed.
- the drive mechanism can be a Rack and pinion drive, with each flat rotary valve element Gear is assigned.
- each flat slide valve element by means of a spring opposite the corresponding one Prestressed flat seat.
- a Drive for example an electric motor, can be mounted in the cover element.
- Air intake duct system 1 the valve position once in the open position and once in the closed position is shown. It should be clear that the Valve positions are aligned in the same way.
- Fig. 1 shows the air intake duct system 1 according to the invention in section.
- the Air intake duct system has an air intake duct housing 2 for the individual leading each cylinder of an internal combustion engine, not shown Air intake channels 3 has.
- On the air intake duct housing 2 is known Way, a cover element 4, for example, arranged by screwing. Between the cover element 4 and the air intake duct housing 2 is on this Formed an exhaust gas recirculation channel 5 via an exhaust gas inlet 6 Exhaust gas is supplied.
- a drive mechanism 7 is located on the cover element 4 arranged, which consists of a rack 8 and 9 gears.
- the Gears 9 are in turn connected to shafts 10 which on their Air intake duct housing 2 facing side flat slide elements 11, which in the present case can be seen from FIG. 2 as flat rotary slide elements are executed.
- These flat rotary slide elements act with exhaust gas inlet openings 12 and flat seats 13 together and in this way enable one Exhaust gas recirculation into the air intake ducts 3.
- the left valve position is in the open position and the right valve position is shown in the closed position.
- the Flat rotary slide elements 11 are each by a spring 14 which on Cover element 4 supports against the corresponding flat seat 13 below Preload held.
- the drive mechanism 7 is in the present case by a cover 15 is closed.
- Fig. 2 shows a top view of part of the invention Air intake duct system 1. It can be clearly seen here that the Exhaust gas inlet openings 12 in the present case as semicircular ring pieces are executed. Furthermore, the exhaust gas inlet 6 with a connecting flange 16 shown.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust-Gas Circulating Devices (AREA)
- Mechanically-Actuated Valves (AREA)
- Characterised By The Charging Evacuation (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Description
Die Erfindung betrifft ein Luftansaugkanalsystem für eine Brennkraftmaschine mit einem Luftansaugkanalgehäuse, das einzelne zu jedem Zylinder der Brennkraftmaschine führende Luftansaugkanäle aufweist, mit einem Abgasrückführkanal, dessen Abgasrückführung in die einzelnen Luftansaugkanäle durch jeweils ein Ventilelement steuerbar ist.The invention relates to an air intake duct system for an internal combustion engine with an air intake duct housing, the individual to each cylinder of the Internal combustion engine leading air intake channels, with an exhaust gas recirculation channel, its exhaust gas recirculation into the individual air intake ducts can be controlled by one valve element each.
Ein derartiges Luftansaugkanalsystem ist beispielsweise aus der DE-A1-198 16 266 bekannt. Dieses Luftansaugkanalsystem gewährleistet eine Abgasrückführung ohne den Nachteil, daß im Vollastbetrieb der Brennkraftmaschine, wenn kein Abgas rückgeführt wird es zu einem Druckausgleich zwischen den zu dem einzelnen Zylinder der Brennkraftmaschine führenden Luftansaugkanälen kommt, wodurch das Schwingverhalten der angesaugten Luft in der Brennkraftmaschine gestört und die Füllung der Zylinder vermindert wird. Das Anbringen der Einzelkanäle mit den jeweiligen Ventilabschnitten ist jedoch konstruktiv schwer realisierbar und kostenaufwendig.Such an air intake duct system is for example from DE-A1-198 16 266 known. This air intake duct system ensures exhaust gas recirculation without the disadvantage that when the internal combustion engine is operating at full load, if no exhaust gas is recirculated there will be a pressure equalization between the air intake ducts leading to the individual cylinder of the internal combustion engine comes, causing the vibration behavior of the intake air in the engine is disturbed and the filling of the cylinders is reduced. The attachment of the individual channels with the respective valve sections is however difficult to construct and expensive.
Aus der JP 09273452 A ist ein Luftansaugkanalsystem bekannt, das einzelne zu jedem Zylinder der Brennkraftmaschine führende Luftansaugkanäle aufweist. Diese Luftansaugkanäle sind über Abgaseinlaßöffnungen mit einem Abgasrückführkanal der im Luftansaugkanalgehäuse ausgeformt istFrom JP 09273452 A an air intake duct system is known, the individual air intake ducts leading to each cylinder of the internal combustion engine having. These air intake passages are connected to one via exhaust gas inlet openings Exhaust gas recirculation duct which is formed in the air intake duct housing verbunden. Die Abgaseinlaßöffnungen weisen dabei einen Flachsitz auf, der mit Flachschieberelementen zusammenwirkt, die wiederum über einen Antriebsmechanismus antreibbar sind. Auch diese Ausführungsform ist konstruktiv schwer realisierbar und kostenaufwendig.connected. The exhaust gas inlet openings have a flat seat, the interacts with flat slide elements, which in turn have a drive mechanism are drivable. This embodiment is also constructive difficult to implement and costly.
Es ist daher Aufgabe der Erfindung, Maßnahmen aufzufinden, mit denen eine Abgasrückführung die das Schwingverhalten der angesaugten Luft nicht stört auf konstruktive und montagetechnisch einfache Weise zu realisieren ist.It is therefore an object of the invention to find measures with which one Exhaust gas recirculation does not affect the vibration behavior of the intake air interferes in a constructive and technically simple manner is.
Diese Aufgabe wird dadurch gelöst, daß das Luftansaugkanalsystem ein Deckelelement aufweist, das auf dem Luftansaugkanalgehäuse derart angeordnet ist, daß zwischen dem Deckelelement und dem Luftansaugkanalgehäuse der Abgasrückführkanal ausgeformt ist, wobei das Deckelelement die als Flachschieberelemente ausgeführten Ventilelemente sowie einen Antriebsmechanismus zur Verstellung der Flachschieberelemente aufweist und jeder Luftansaugkanal eine Abgaseinlaßöffnung mit einem Flachsitz aufweist, der mit dem Flachschieberelement zusammenwirkt.This object is achieved in that the air intake duct system Has cover element which is arranged on the air intake duct housing in such a way is that between the cover member and the air intake duct housing the exhaust gas recirculation channel is formed, the cover element the valve elements designed as flat slide elements and a drive mechanism for adjusting the flat slide elements has and everyone Air intake duct has an exhaust gas inlet opening with a flat seat, which with the Flat slide element interacts.
Auf diese Weise wird ein Luftansaugkanalsystem geschaffen, bei dem die Ventilelemente mit dem zugehörigen Antriebsmechanismus als eigenständige Moduleinheit in einem Deckelelement vorliegen. Dies bietet den Vorteil, daß der Montageaufwand und die zugehörigen Kosten auf ein Minimum reduziert werden.In this way, an air intake duct system is created in which the Valve elements with the associated drive mechanism as independent Module unit present in a cover element. This has the advantage that the Assembly effort and the associated costs can be reduced to a minimum.
In besonders vorteilhafter Weise sind die Flachschieberelemente als Flachdrehschieberelemente ausgebildet, wobei die Abgaseinlaßöffnung als halbkreisförmige Ringstücke ausgebildet sind. Der Antriebsmechanismus kann ein Zahnstange-Zahnrad-Antrieb sein, wobei jedem Flachdrehschieberelement ein Zahnrad zugeordnet ist. Um eine Dichtheit der Ventilelemente zu gewährleisten, ist jedes Flachdrehschieberelement durch eine Feder gegenüber dem entsprechenden Flachsitz vorgespannt. In einer weiter vereinfachten Ausführungsform kann auch ein Antrieb, beispielsweise ein Elektromotor in dem Deckelelement gelagert sein.In a particularly advantageous manner, the flat slide elements are as Flat rotary slide elements, wherein the exhaust gas inlet opening as semicircular ring pieces are formed. The drive mechanism can be a Rack and pinion drive, with each flat rotary valve element Gear is assigned. In order to ensure tightness of the valve elements, each flat slide valve element by means of a spring opposite the corresponding one Prestressed flat seat. In a further simplified embodiment, a Drive, for example an electric motor, can be mounted in the cover element.
Ausführungsbeispiele der Erfindung sind dargestellt, und werden nachfolgend beschrieben.Embodiments of the invention are shown and are described below described.
Die Zeichnung zeigt:
- Fig. 1
- eine Schnittansicht eines Teils des erfindungsgemäßen Luftansaugkanalsystems, und
- Fig. 2
- eine Draufsicht des erfindungsgemäßen Luftansaugkanalsystems.
- Fig. 1
- a sectional view of part of the air intake duct system according to the invention, and
- Fig. 2
- a plan view of the air intake duct system according to the invention.
Es wird angemerkt, daß zur Verdeutlichung der Funktionen des erfindungsgemäßen
Luftansaugkanalsystems 1 die Ventilstellung einmal in Offen- und einmal in Zu-Position
dargestellt ist. Es sollte deutlich sein, daß in der Anwendung die
Ventilstellungen jeweils gleich ausgerichtet sind. It is noted that to clarify the functions of the invention
Air
Fig. 1 zeigt das erfindungsgemäße Luftansaugkanalsystem 1 im Schnitt. Das
Luftansaugkanalsystem besitzt ein Luftansaugkanalgehäuse 2 das einzelne zu
jedem Zylinder einer nicht dargestellten Brennkraftmaschine führende
Luftansaugkanäle 3 aufweist. Auf dem Luftansaugkanalgehäuse 2 ist auf bekannte
Weise ein Deckelelement 4 beispielsweise durch Anschrauben, angeordnet.
Zwischen dem Deckelelement 4 und dem Lufansaugkanalgehäuse 2 ist auf diese
Weise ein Abgasrückführkanal 5 ausgeformt dem über eine Abgaseinleitung 6
Abgas zugeführt wird. Auf dem Deckelelement 4 ist ein Antriebsmechanismus 7
angeordnet, der aus einer Zahnstange 8 sowie aus Zahnrädern 9 besteht. Die
Zahnräder 9 stehen wiederum mit Wellen 10 in Verbindung, die auf ihre zum
Lufansaugkanalgehäuse 2 gerichteten Seite Flachschieberelemente 11 aufweisen,
die im vorliegenden Fall wie aus Fig. 2 ersichtlich ist, als Flachdrehschieberelemente
ausgeführt sind. Diese Flachdrehschieberelemente wirken mit Abgaseinlaßöffnungen
12 und Flachsitzen 13 zusammen und ermöglichen auf diese Weise eine
Abgasrückführung in die Luftansaugkanäle 3.Fig. 1 shows the air
In der vorliegenden Darstellung ist die linke Ventilstellung in geöffneter Position und
die rechte Ventilstellung in geschlossener Position gezeigt. Die
Flachdrehschieberelemente 11 werden jeweils durch eine Feder 14 die sich am
Deckelelement 4 abstützt gegenüber dem entsprechenden Flachsitz 13 unter
Vorspannung gehalten. Der Antriebsmechanismus 7 wird im vorliegendem Fall durch
ein Abdeckelement 15 verschlossen.In the present illustration, the left valve position is in the open position and
the right valve position is shown in the closed position. The
Flat
Fig. 2 zeigt eine Draufsicht eines Teils des erfindungsgemäßen
Luftansaugkanalsystems 1. Deutlich zu erkennen ist hierbei, daß die
Abgaseinlaßöffnungen 12 im vorliegendem Fall als halbkreisförmige Ringstücke
ausgeführt sind. Desweiteren ist die Abgaseinleitung 6 mit einem Anschlußflansch
16 dargestellt.Fig. 2 shows a top view of part of the invention
Air
Claims (5)
- An air intake conduits system for an internal combustion engine, comprising an air intake conduits housing which includes individual air intake conduits leading to each cylinder of the internal combustion engine, and an exhaust gas recirculation conduit the exhaust gas recirculation of which into the individual air intake conduits is controllable by means of a valve element in each case, the valve elements being configured as flat slide valve elements, a drive mechanism for displacing the flat slide valve elements being provided and each air intake conduit having an exhaust gas inlet aperture with a flat seating which cooperates with the flat slide valve element, characterised in that the flat slide valve elements (11) are configured as flat rotary slide valve elements and the air intake conduits system (1) includes a cover element (4) which is so arranged on the air intake conduits housing (2) that the exhaust gas recirculation conduit (5) is formed between the cover element (4) and the air intake conduits housing (2), the cover element (4) including the flat slide valve elements (11) and the drive mechanism being arranged on the cover element (4).
- Air intake conduits system according to Claim 1, characterised in that the exhaust gas inlet apertures (12) are in the form of semicircular ring sections.
- Air intake conduits system according to Claim 3, characterised in that the drive mechanism (7) consists of a rack-and-pinion drive (8, 9), a pinion (9) being associated with each flat rotary slide valve element.
- Air intake conduits system according to Claim 3 or 4, characterised in that a flat rotary slide valve element (11) is preloaded by a spring (14) with respect to the corresponding flat seating (13).
- Air intake conduits system according to any one of the preceding claims, characterised in that a drive, for example, an electric motor, is mounted in the cover element (4).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10015210A DE10015210A1 (en) | 2000-03-27 | 2000-03-27 | Air intake channel system for IC engines has cover fixed to housing to define exhaust return channel, with integral flat slide element valves and valve drive |
| DE10015210 | 2000-03-27 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1138926A2 EP1138926A2 (en) | 2001-10-04 |
| EP1138926A3 EP1138926A3 (en) | 2002-07-17 |
| EP1138926B1 true EP1138926B1 (en) | 2003-11-05 |
Family
ID=7636585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01104236A Expired - Lifetime EP1138926B1 (en) | 2000-03-27 | 2001-02-22 | System of air intake conduits for a combustion engine |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1138926B1 (en) |
| DE (2) | DE10015210A1 (en) |
| ES (1) | ES2204770T3 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2714770B2 (en) * | 1995-03-27 | 1998-02-16 | 昭和アルミニウム株式会社 | Intake manifold |
| JPH09273452A (en) * | 1996-04-09 | 1997-10-21 | Hino Motors Ltd | Exhaust gas recirculation device |
| JP3809696B2 (en) * | 1997-03-25 | 2006-08-16 | 株式会社豊田自動織機 | Exhaust gas recirculation device for internal combustion engine |
| US6334437B1 (en) * | 1997-09-16 | 2002-01-01 | Filterwerk Mann & Hummel Gmbh | System for recirculating exhaust gas in an internal combustion engine |
| DE19816266A1 (en) * | 1998-04-11 | 1999-10-14 | Pierburg Ag | Air intake duct system for an internal combustion engine |
-
2000
- 2000-03-27 DE DE10015210A patent/DE10015210A1/en not_active Withdrawn
-
2001
- 2001-02-22 EP EP01104236A patent/EP1138926B1/en not_active Expired - Lifetime
- 2001-02-22 ES ES01104236T patent/ES2204770T3/en not_active Expired - Lifetime
- 2001-02-22 DE DE50100888T patent/DE50100888D1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP1138926A2 (en) | 2001-10-04 |
| DE10015210A1 (en) | 2001-10-04 |
| EP1138926A3 (en) | 2002-07-17 |
| DE50100888D1 (en) | 2003-12-11 |
| ES2204770T3 (en) | 2004-05-01 |
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