EP1302642A2 - Vorrichtung zur Entlüftung von Komponenten im Ansaugtrakt einer Verbrennungskraftmaschine - Google Patents
Vorrichtung zur Entlüftung von Komponenten im Ansaugtrakt einer Verbrennungskraftmaschine Download PDFInfo
- Publication number
- EP1302642A2 EP1302642A2 EP02019684A EP02019684A EP1302642A2 EP 1302642 A2 EP1302642 A2 EP 1302642A2 EP 02019684 A EP02019684 A EP 02019684A EP 02019684 A EP02019684 A EP 02019684A EP 1302642 A2 EP1302642 A2 EP 1302642A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- opening
- intake air
- drive housing
- section
- flow
- 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.)
- Granted
Links
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Classifications
-
- 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
- F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
- F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
- F02D9/1035—Details of the valve housing
- F02D9/106—Sealing of the valve shaft in the housing, e.g. details of the bearings
Definitions
- components for controlling the Intake air such as throttle or control flaps, exhaust gas recirculation valves or others flap-like elements are used, which usually have an electric drive be adjusted.
- the electric drive is via a transmission link (for example a Valve shaft) connected to the valve (for example a valve).
- the drive is in a housing connected directly to the intake air line, while the valve is inside a suction pipe, for example. Therefore, it is an adequate one Ensure system tightness, so that no air exchange between atmosphere and suction air line, for example, occurs.
- DE 43 05 123 A1 relates to the arrangement of a throttle valve. According to this arrangement are the bearing sleeves of the throttle valve radial within a housing recess displaced. The first time the throttle valve is closed after assembly, there will be dimensional deviations between the stop surfaces and the throttle valve shaft bearing or the bores are compensated by adjusting the position by moving the bearing sleeves radially. With this arrangement, greater tightness is excluded Stiffness realized during operation.
- DE 196 03 547 A1 relates to a throttle valve assembly for internal combustion engines.
- the throttle valve stop surfaces are due to plastic deformation after energy supply, such as through Heat or ultrasound, and loading with a closing force on the axial stop surfaces customized.
- DE 198 57 577 A1 relate to exhaust gas recirculation systems for Internal combustion engines.
- an exhaust gas recirculation system for an internal combustion engine partial recirculation of exhaust gases from an exhaust system via at least one exhaust gas recirculation line
- the exhaust gas recirculation line opens into an intake system via a venturi device into the intake system.
- the venturi device is via a main air duct bypassable, the flow of which can be controlled via a control element.
- the venturi device is of multi-flow design and at least two in parallel switched nozzle-diffuser units or the venturi and the The main air duct together with the control element are arranged in a common housing.
- the DE 197 13 578 A1 relates to an admixing valve, in particular an exhaust gas recirculation valve for an internal combustion engine.
- a hot fluid flow is generated by means of the admixing valve admixed with the intake air at an exhaust gas recirculation valve of an internal combustion engine.
- the Mixing valve includes a plastic housing for guiding the cold fluid flow and a the hot fluid flow connector. This forms a sealing seat for one Valve closing element and is connected to the plastic housing.
- the connector includes also an outlet opening through which the hot fluid flow mixes with the cold fluid flow is and has at least two flow surfaces.
- the flow areas lie opposite one another transversely to the flow direction of the cold fluid stream and extend in the flow direction of the cold fluid flow.
- the flow areas are as Fluid guide surface formed, which is arranged at least in the region of the outlet opening are and shield the plastic housing from the supplied hot fluid flow.
- flow guidance in the intake tract becomes one Combustion engine achieved a sealing element in the form of a radial shaft sealing ring between the rotating union of a transmission element in the wall to Example of an intake line, and makes the drive housing superfluous.
- Compensation opening can also have several compensation openings between them Components are trained.
- the compensation opening becomes the drive housing preferably in the upper, i.e. opposite the bottom of the suction pipe Area arranged.
- the compensation opening is preferably dimensioned so that capillary forces be prevented, i.e. the minimum opening width is by the diameter the equalization opening, from which capillary effects no longer occur.
- Air guiding elements can be arranged, which prevent the flow from being able to be imme- diately flow into the compensation opening.
- Currents occur that are a component of velocity have normal to the wall of the suction pipe, for example at right angles to the main flow, returning exhaust gas flows, so the Pressure equalization opening against the Normal component of the flow velocity of a rectangular or other, a normal component of the flow velocity generating angle, shielded become.
- Figure 1 is a top view of a suction pipe mounted in flow guide elements to be taken from the transmission source projecting into the flow cross section.
- a drive housing 1 comprises an upper part 2 and a lower part 3, which run along a Joint 17 abut each other.
- a sealing element is covered by the parting line 17, with which the upper part 2 and the lower part 3 of the drive housing 1 are sealed.
- An actuator (not shown here) is arranged inside the drive housing 1 acts on a transmission element 6.
- the transmission element 6 is in a bearing bush 12, which is arranged in the bottom of the lower part 3, rotatably received.
- the suction line 7 is designed as a cylindrical tubular body.
- the inside 11 limits the flow cross section 8 and whose outside 10 delimits a second flow cross section 16.
- the air control element 18 is via mounting elements 15, which are on the outside 10 of the air guide element 18th are provided, within that surrounding the outside 10 of the air guide element 18 second flow cross section 16 mounted.
- the support members 15 for the Air guiding element 18 in the second flow cross section 16 are in the second flow cross section 16 holders 13, 14 arranged.
- the holder 13 can, for example, like a baffle be formed and the gas flow in the second flow cross section 16 from the bearing bush 12 distract.
- FIG. 2 shows a cross section through the drive housing and intake line according to FIG. 1 and an opening that compensates for pressure differences.
- this can be used as an insert seal, for example in the form of an O-ring.
- the bearing bush 12, which the transmission member 6 rotatably receives for example, as a sleeve made of soft be made of metallic material with a trained on this, in the second flow cross section 16 protruding collar surface 23 on the outside of the Bottom area 22 abuts the lower part 3 of the drive housing 1.
- the bearing bush 12 is enclosed and fixed by raised areas 21 of the drive housing base 22.
- fixing holding bodies 14 are on the outside 10 the wall 9 of the air guide element 18 baffle-like holder 13, 14.
- the gas flow passing the first flow cross section 8 of the intake air line 7 be deflected so that they do not go directly into the pressure equalization opening 20 flows in the bottom 22 of the lower part 3 of the drive housing and thereby particles or other media into it.
- Shielding the one or more openings 20 that provide pressure equalization between enable the second flow cross section 16 and the drive housing 1, can be improved in an advantageous manner in that the first flow cross section 8 of the suction line 7 passing gas flow a speed component in the vicinity of the wall, parallel to the inside in every operating state 11 of the wall 9 of the air guide element 18 extends.
- a speed component normal to the wall of the intake air line 7 can be induced, for example, by using exhaust gas recirculation valves the exhaust gases returned to the intake air line 7 at right angles to the intake line 7 in these are initiated.
- the one pressure equalization between the second flow cross section 16 and the drive housing 1 enabling openings 20 are advantageously arranged so that when the gas flow stops in the first flow cross section 8 of the intake air line 7 the media contained in the gas flow are not caused by gravitational forces in the opening 20 allowing pressure equalization can occur.
- the openings 20 are when as bores procured in such a diameter that the effect of capillary forces can be prevented so that a creep of liquid media in the floor area 22 of the lower part 3 of the drive housing 1 is omitted.
- FIG. 3 shows the further embodiment variant of the solution proposed according to the invention with a pressure compensation device with shielding elements arranged close to the wall in a front view.
- a separation channel 30 In the curved bottom region 22 of the lower part 3 of the drive housing 1 can a separation channel 30 are formed. If the drive housing 1 or its lower part 3 manufactured as a plastic injection molded part, the separation channel 30 can be advantageous Way on the inside 2 in the bottom region 22 of the lower part 3 of the drive housing 1 be injected.
- the separation channel 30 has an essentially rectangular shape Cross-section 31.
- the separation channel 30 is delimited on the one hand by a channel bottom 34, which merges into channel walls 36 that delimit the separation channel 30.
- axial extension of the separation channel 30 is dimensioned such that by the wall of the separation channel 30 a cover of the covered by this Opening 20 for pressure equalization between intake air line 7 and drive housing 1 is guaranteed.
- the channel floor 34 or the channel walls 36 with rounded edges 33 in each case. Training of the entry area or the outlet area of the separation channel 30 with rounded edges 33 avoids swirling of the partial gas flow, which is perpendicular to the plane of the drawing Figure 3 flows through the channel cross section 31 of the separation channel 30. At a Turbulence within the separation channel 30 would inevitably be normal to the bottom area wall 22 of the lower part 3 directional speed components occur, so that despite the provision of a separation channel 30, penetration of solid or liquid media via the pressure compensation opening 20 in the drive housing 1 not could be effectively excluded.
- Figure 4 shows a cross section through the pressure compensation device shown in Figure 3 with cover element.
- the separation channel 30 is in a Longitudinal extension 35 with respect to the opening arranged centrally to this for pressure compensation extends.
- the edge of the channel bottom 34 causes a swirling in the separation channel 30 entering partial gas flow avoided.
- directional velocity components of the gas flow, which are the flow cross-section of the intake air line 7 are passed through the separation channel 30 on direct inflow into the equalization opening 20 in the bottom region 22 of the lower part 3 of the drive housing 1 prevented.
- a connection between the intake air line 7 is a pressure compensation forming at least one opening 20 in the bottom 25 of the lower part 3 of the Drive housing 1 can be created, which cooperates with a separation channel 30, a particle entry in the drive housing 1 due to an emerging Differential pressure prevented.
- By providing one or more compensation openings 20 can no pressure difference between the drive housing 1 and the Intake air line 7 occur. Due to a lack of suction or a lack of No foreign medium is able to exert pressure between the bearing bush 12 and this on it Enter rotatably received transmission element 6. For this reason, too a sealing element between the transmission element 6 and the bearing bush 12, for example in the form of a radial shaft sealing ring.
- the system tightness of the invention proposed arrangement can by the anyway in the area of Partition joint 17 of upper part 2 and lower part 3 of the drive housing 1 arranged sealing element 4 can be ensured.
- the solution proposed according to the invention for achieving a system tightness of Components for controlling the intake air line of internal combustion engines can include electrically operated exhaust gas recirculation valves, electrically operated intake air throttle devices for control flaps, swirl or tumble flaps that are electrically operated are used.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
- Characterised By The Charging Evacuation (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Exhaust-Gas Circulating Devices (AREA)
Abstract
Description
- Figur 1
- die Draufsicht auf ein in Strömungsführungselementen gelagertes Saugrohr mit in einen ersten Strömungsquerschnitt hineinragendem Übertragungsglied,
- Figur 2
- einen Querschnitt durch Antriebsgehäuse und Saugrohrleitung mit Luftleitelement gemäß Figur 1 mit Ausgleichsöffnung,
- Figur 3
- eine weitere Ausführungsvariante einer Druckausgleichsvorrichtung mit wandnah angeordneten Abschirmelementen in Draufsicht und
- Figur 4
- einen Querschnitt durch die in Figur 3 dargestellte Druckausgleichsvorrichtung mit Abdeckelement.
- 1
- Antriebsgehäuse
- 2
- Oberteil
- 3
- Unterteil
- 4
- Einlegedichtung
- 5
- Antriebsmoment
- 6
- Übertragungselement
- 7
- Ansaugluftleitung
- 8
- erster Strömungsquerschnitt
- 9
- Wand
- 10
- Außenseite
- 11
- Innenseite
- 12
- Lagerbuchse
- 13
- Halter
- 14
- Halter
- 15
- Halterung
- 16
- zweiter Strömungsquerschnitt
- 17
- Trennfuge
- 18
- Luftleitelement
- 20
- Ausgleichsöffnung
- 21
- Buchsenaufnahme
- 22
- Antriebsgehäuseboden
- 23
- Buchsenbund
- 24
- Ringspaltweite
- 25
- Tragkörper
- 26
- Innenwand
- 30
- Separationskanal
- 31
- Kanalquerschnitt
- 32
- Kanaleinlauf/Kanalauslauf
- 33
- Kantenrundung
- 34
- Kanalboden
- 35
- Längserstreckung
- 36
- Kanalwand
- 37
- Abstand
Claims (16)
- Vorrichtung zur Steuerung der Ansaugluft im Ansaugtrakt einer Verbrennungskraftmaschine mit einem einer Ansaugluftleitung (7) zugeordneten Antriebsgehäuse (1), welches einen ein Übertragungselement (6) betätigenden Stellantrieb enthält, wobei am Übertragungselement ein Ventilelement aufgenommen ist, welches den einen ersten Strömungsquerschnitt (8) der Ansaugluftleitung (7) passierenden Gasstrom steuert und welches durch die Wandung (9) der Ansaugluftleitung (7) hindurchragt, dadurch gekennzeichnet, dass zwischen dem Antriebsgehäuse (1) und der Ansaugluftleitung (7) mindestens eine Öffnung (20) vorgesehen ist, über die Druckdifferenzen zwischen Antriebsgehäuse (1) und der Ansaugluftleitung (7) abgebaut werden.
- Vorrichtung gemäß Anspruch 1, dadurch gekennzeichnet, dass die Mindestöffnungsweite der mindestens einen Öffnung (20) zwischen Antriebsgehäuse (1) und Ansaugluftleitung (7) durch das Auftreten von Kapillarkräften definiert ist.
- Vorrichtung gemäß Anspruch 1, dadurch gekennzeichnet, dass die mindestens eine Öffnung (20) zum Abbau von Druckdifferenzen im Antriebsgehäuse (1) in einem ein Luftleitelement (18) in der Ansaugluftleitung (7) umgebenden zweiten Strömungsquerschnitt (16) mündet.
- Vorrichtung gemäß Anspruch 1, dadurch gekennzeichnet, dass die mindestens eine Öffnung (20) zum Abbau von Druckdifferenzen zwischen Antriebsgehäuse (1) und der Ansaugluftleitung (7) in der Wand (9) des Luftleitelementes (18) mündet.
- Vorrichtung gemäß Anspruch 3, dadurch gekennzeichnet, dass im zweiten Strömungsquerschnitt (16) die mindestens eine Öffnung (20) durch Halter (13, 14) von der Gasströmung abgeschirmt wird.
- Vorrichtung gemäß Anspruch 5, dadurch gekennzeichnet, dass die Halter (13, 14) im Ringspalt (16) in Strömungsrichtung der Gasströmung gesehen, vor der mindestens einen Öffnung (20) zum Druckausgleich angeordnet sind.
- Vorrichtung gemäß Anspruch 3, dadurch gekennzeichnet, dass die Halter (13, 14) im zweiten Strömungsquerschnitt (16) das Luftleitelement (18) fixieren.
- Vorrichtung gemäß Anspruch 1, dadurch gekennzeichnet, dass die mindestens eine Öffnung (20) der Ansaugluftleitung (7) von einem Separationskanal (30) überdeckt ist, der sich parallel zur Strömungsrichtung der Gasströmung im ersten Strömungsquerschnitt (8) erstreckt.
- Vorrichtung gemäß Anspruch 8, dadurch gekennzeichnet, dass die Wände (34, 36) des Separationskanals (30) die mindestens eine Öffnung (20) gegen normal zur Strömungsrichtung des Gasstromes im freien Strömungsquerschnitt (8) gerichtete Geschwindigkeitskomponenten abschirmen.
- Vorrichtung gemäß Anspruch 8, dadurch gekennzeichnet, dass der Separationskanal (30) am Boden (22) des Antriebsgehäuses (1) angespritzt ist.
- Vorrichtung gemäß Anspruch 8, dadurch gekennzeichnet, dass der Separationskanal (30) an der Wandung (9) der Ansaugluftleitung (7) angespritzt ist.
- Vorrichtung gemäß Anspruch 8, dadurch gekennzeichnet, dass die Längserstreckung (35) des Separationskanals (30) ein Vielfaches der Öffnungsweite der mindestens einen Öffnung (20) zum Druckausgleich entspricht.
- Verwendung der Vorrichtung gemäß einem oder mehrerer der vorhergehenden Ansprüche als elektrisches Abgasrückführventil an einer Verbrennungskraftmaschine.
- Verwendung der Vorrichtung gemäß einem oder mehrerer der Ansprüche 1 bis 12 als Drossel- oder Regeleinrichtung von Verbrennungskraftmaschinen.
- Verwendung der Vorrichtung gemäß einem oder mehrerer der Ansprüche 1 bis 12 als Swirl-Klappe im Ansaugtrakt an einer Verbrennungskraftmaschine.
- Verwendung der Vorrichtung gemäß einem oder mehrerer der Ansprüche 1 bis 12 als Tumble-Klappe an Verbrennungskraftmaschinen.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2001149673 DE10149673A1 (de) | 2001-10-09 | 2001-10-09 | Vorrichtung zur Entlüftung von Komponenten im Ansaugtrakt einer Verbrennungskraftmaschine |
| DE10149673 | 2001-10-09 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1302642A2 true EP1302642A2 (de) | 2003-04-16 |
| EP1302642A3 EP1302642A3 (de) | 2004-03-03 |
| EP1302642B1 EP1302642B1 (de) | 2006-03-29 |
Family
ID=7701847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20020019684 Expired - Lifetime EP1302642B1 (de) | 2001-10-09 | 2002-09-04 | Vorrichtung zur Entlüftung von Komponenten im Ansaugtrakt einer Verbrennungskraftmaschine |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1302642B1 (de) |
| JP (1) | JP2003184560A (de) |
| DE (2) | DE10149673A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITBO20100551A1 (it) * | 2010-09-10 | 2012-03-11 | Magneti Marelli Spa | Valvola per la regolazione della portata di un gas in un motore a combustione interna provvista di una valvola di compensazione della pressione |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009052319A1 (de) * | 2009-11-07 | 2011-05-26 | Volkswagen Ag | Brennkraftmaschine sowie ein Strömungsleitelement zur Anordnung in einer Luftzufuhrleitung der Brennkraftmaschine und eine Luftzufuhrleitung |
| WO2011087661A2 (en) * | 2009-12-22 | 2011-07-21 | Borgwarner Inc. | Internal combustion engine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4305123A1 (de) | 1993-02-19 | 1994-09-01 | Pierburg Gmbh | Anordnung einer Drosselklappe |
| DE19603547A1 (de) | 1996-02-01 | 1997-08-07 | Pierburg Ag | Drosselklappenstutzen für Brennkraftmaschinen |
| DE19713578A1 (de) | 1997-04-02 | 1998-10-15 | Bosch Gmbh Robert | Zumischventil, insbesondere Abgasrückführventil einer Brennkraftmaschine |
| DE19857578A1 (de) | 1997-12-16 | 1999-06-24 | Avl List Gmbh | Abgasrückführsystem für eine Brennkraftmaschine |
| DE19857577A1 (de) | 1997-12-16 | 1999-07-01 | Avl List Gmbh | Abgasrückführungssystem für eine Brennkraftmaschine |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3929838A1 (de) * | 1989-09-08 | 1991-03-14 | Vdo Schindling | Kraftstoff-luft-gemischbildungsvorrichtung fuer verbrennungsmotoren |
| DE4229587A1 (de) * | 1992-09-04 | 1994-03-10 | Hella Kg Hueck & Co | Einrichtung zur Steuerung der Luftmenge einer Brennkraftmaschine |
| DE4410487C1 (de) * | 1994-03-25 | 1995-03-02 | Daimler Benz Ag | Abgasrückführventil einer Brennkraftmaschine |
| US6604424B1 (en) * | 1999-06-16 | 2003-08-12 | Denso Corporation | Pressure detecting apparatus and installation structure of same |
-
2001
- 2001-10-09 DE DE2001149673 patent/DE10149673A1/de not_active Ceased
-
2002
- 2002-09-04 DE DE50206204T patent/DE50206204D1/de not_active Expired - Lifetime
- 2002-09-04 EP EP20020019684 patent/EP1302642B1/de not_active Expired - Lifetime
- 2002-10-07 JP JP2002294065A patent/JP2003184560A/ja not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4305123A1 (de) | 1993-02-19 | 1994-09-01 | Pierburg Gmbh | Anordnung einer Drosselklappe |
| DE19603547A1 (de) | 1996-02-01 | 1997-08-07 | Pierburg Ag | Drosselklappenstutzen für Brennkraftmaschinen |
| DE19713578A1 (de) | 1997-04-02 | 1998-10-15 | Bosch Gmbh Robert | Zumischventil, insbesondere Abgasrückführventil einer Brennkraftmaschine |
| DE19857578A1 (de) | 1997-12-16 | 1999-06-24 | Avl List Gmbh | Abgasrückführsystem für eine Brennkraftmaschine |
| DE19857577A1 (de) | 1997-12-16 | 1999-07-01 | Avl List Gmbh | Abgasrückführungssystem für eine Brennkraftmaschine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITBO20100551A1 (it) * | 2010-09-10 | 2012-03-11 | Magneti Marelli Spa | Valvola per la regolazione della portata di un gas in un motore a combustione interna provvista di una valvola di compensazione della pressione |
| EP2428666A1 (de) * | 2010-09-10 | 2012-03-14 | Magneti Marelli S.p.A. | Ventil zur Regelung eines Gasstromes in einer Brennkraftmaschine ausgestattet mit einem Druckkompensationsventil |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1302642B1 (de) | 2006-03-29 |
| EP1302642A3 (de) | 2004-03-03 |
| DE10149673A1 (de) | 2003-04-24 |
| DE50206204D1 (de) | 2006-05-18 |
| JP2003184560A (ja) | 2003-07-03 |
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