EP1170483A2 - Luftansaugvorrichtung für eine Brennkraftmaschine - Google Patents
Luftansaugvorrichtung für eine Brennkraftmaschine Download PDFInfo
- Publication number
- EP1170483A2 EP1170483A2 EP01114776A EP01114776A EP1170483A2 EP 1170483 A2 EP1170483 A2 EP 1170483A2 EP 01114776 A EP01114776 A EP 01114776A EP 01114776 A EP01114776 A EP 01114776A EP 1170483 A2 EP1170483 A2 EP 1170483A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- throttle valve
- air intake
- intake device
- wing
- flaps
- 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- Withdrawn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
Images
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
- F02D9/109—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps having two or more flaps
- F02D9/1095—Rotating on a common axis, e.g. having a common shaft
-
- 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
- F02D2009/0279—Throttle valve control for intake system with two parallel air flow paths, each controlled by a throttle, e.g. a resilient flap disposed on a throttle
Definitions
- the invention relates to an air intake device for an internal combustion engine the preamble of independent claim 1.
- DE 195 45 746 describes an air intake device for an internal combustion engine known.
- This air intake device has a collector that has suction pipes is connected to the cylinders of the internal combustion engine.
- the suction pipes are included a wing flap closed with three wings, by switching the Wing flaps can be realized with different effective suction tube lengths.
- the invention has for its object an air intake device for a To create internal combustion engine, which has throttle valves, in which one Uniform distribution of the air volume to the cylinders is guaranteed.
- the throttle valves are some Places defined softly and thereby reduces the unequal distribution.
- This Design is based on the following finding: Should a cylinder have less air intake than another, then the pressure curve behind the throttle valve is for this cylinder differently. The cylinder that sucks the least air because of the gap is the lowest, has the lowest pressure behind the throttle valve. Since the Pressure in front of the throttle valve is the same for all cylinders, is for the cylinders, at where the gap is smallest, the pressure difference across the flap is greatest. If this pressure difference can be used to deform the flap and increasing the gap, this cylinder will suck in more air. Ideally the unequal distribution is eliminated.
- the flap is in the closed position Position not perpendicular to the center axis of the vibrating tube.
- the end position in closed position should - starting from the open position - before Vertical erection.
- the flap should be in the area the shaft should be as stiff as possible and the shaft itself should be torsionally rigid. It is sufficient if the Throttle valve has a soft portion.
- This sub-area will change according to a further embodiment of the invention can be realized in such a way that the wing inclined in the direction of flow Throttle valve is flexible compared to the other wing.
- An alternative Air intake device for an internal combustion engine provides the axes of the Arrange throttle valves off-center. The individual axes of these throttle valves are connected to an operating rod. Between single axis and Actuating rod, a resilient element is provided in each case. This element has the task of compensating for the uneven distribution of the supplied air, i.e. on Instead of a softly designed throttle valve, the mobility is increased by the resilient element realized.
- the actuating rod can be translatory or rotary be moved.
- the air intake device shows a single intake pipe 10, which leads to a cylinder head 11 of an internal combustion engine.
- the inlet valve 12 is shown schematically.
- the intake pipe 10 In the intake pipe 10 is a throttle valve 13 arranged.
- the throttle valve is drawn near its closed position. In this position it deviates from the normal to the Direction of flow.
- This throttle valve is rigid in the area of the shaft 14 and the shaft itself is torsionally rigid.
- the valve will flow with pressure loaded and the two wings of the flaps would be soft, so a wing 15 in Flow direction bent and the other wing 16 against the housing wall pressed.
- the wing that would be pressed against the case wall should also be as stiff as possible so that when pressed against the housing Gap on his side is not reduced any further.
- the other wing ensures that the Gap 17 is slightly enlarged by deformation and more air in the cylinder flows.
- the effect can be achieved through a targeted design of the housing contour get supported.
- the detailed design of the flap and the housing must be re-tuned for each engine. Among other things, it depends on Cylinder stroke volume of the oscillating tube diameter and the distance from the inlet valve to Single throttle. The direction of rotation in which the throttle valve opens / closes can be any.
- FIG. 2 shows several individual throttle valves, which are on a common axis are attached.
- the axle is extremely torsionally rigid.
- the single throttle valves are relatively soft in the upper region 18. This can be done, for example a two-component injection molding process can be achieved or by a Reduction in wall thickness.
- FIG 3 shows single throttle valves 19, in which the individual flaps are not open axis.
- each individual throttle valve 19 their has its own axis 20.
- the individual axes 20 are common and actuated synchronously via an actuating rod with which all axes of the Single throttle valves are connected.
- the individual flaps are perpendicular to Actuating rod.
- the flaps should not be perfect be suspended from pressure. Due to a slightly off-center location of the Axes tends to open each of the individual flaps under pressure. The valve with the greatest pressure load reaches the highest torque around the Axis of the flap. A pressure load that differs from flap to flap becomes caused by different leakages on the individual flaps. The the tightest flap lets the least air through, the pressure behind it drops furthest. The pressure load on this flap is greatest. Where one Single axis is connected to the actuating rod, is a resilient element 22 necessary, which counteracts the torque of the flap.
- the resilient element 22 ensures that all flaps have a defined one Take up position on a stop on the rod. Exceeds the torque the axis of the bias of the spring, the flap can move at a constant position move the operating rod out of this stop position. At constant Position of the operating rod, the individual flaps depending on the load on the Flaps assume different positions within narrow limits. The flap with the highest torque due to the smallest gap will be the farthest move out of the normal position and thus enlarge the gap on this flap. It more air gets to this cylinder.
- Each flap has its individual position depending on its column size. In the Ideally, even with this system, there is no cylinder uneven distribution.
- the actuating rod 21 can be moved either translationally or rotationally become, i.e. the connection to the individual flaps can be, for example Gearing or a lever.
- the resilient element that has one of the axes connecting the operating rod can be realized in a variety of ways. At the This resilient element can be easiest by means of an elastic coupling member realize.
- the individual throttle valves can both by means of a throttle body Manufactured separately and to the swinging tubes as close as possible to the cylinder head be flanged. There is also the option of throttling at Assembly injection molding process directly into the vibrating tube.
- the throttling the engine can either only with the help of the single throttle or combined with individual and with a central throttle valve.
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)
Abstract
Description
Es zeigt
- Figur 1
- die schematische Darstellung einer Luftansaugvorrichtung
- Figur 2
- die Prinzipskizze von Einzeldrosselklappen auf einer Achse
- Figur 3
- die Prinzipskizze von Einzeldrosselklappen mit Einzelachsen.
Claims (6)
- Luftansaugvorrichtung für eine Brennkraftmaschine mit wenigstens zwei Ansaugrohren, wobei jedes Ansaugrohr vor wenigstens einer Drosselklappe verschließbar ist und wobei die gedrosselten Klappen miteinander verbunden sind und dadurch gekennzeichnet, dass die Drosselklappen an wenigsten einem Bereich derart weich ausgestaltet ist, dass dadurch die ungleiche Verteilung der zugeführten Luft reduziert wird.
- Luftansaugvorrichtung nach Anspruch 1, selbst gekennzeichnet, dass die Drosselklappe in der geschlossenen Stellung außerhalb der Senkrechten zur Strömungsrichtung steht.
- Luftansaugvorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass jede Drosselklappe im Bereich der Welle möglichst steif und die Welle selbst torsionssteif ist und wenigstens ein Flügel der Drosselklappe den weichen Teilbereich aufweist.
- Luftansaugvorrichtung nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass der in Strömungsrichtung geneigte Flügel der Drosselklappe gegenüber dem anderen Flügel biegeweich ist.
- Luftansaugvorrichtung für eine Brennkraftmaschine mit wenigstens zwei Ansaugrohren, wobei jedes Ansaugrohr vor wenigstens einer Drosselklappe verschließbar ist und wobei die gedrosselten Klappen miteinander verbunden sind, wobei die Achsen der Drosselklappen außermittig angeordnet sind und die Einzelachsen mit einer Betätigungsstange verbunden sind, wobei zwischen Einzelachse und Betätigungsstange ein federndes Element vorgesehen ist.
- Luftansaugvorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die Betätigungsstange translatorisch oder auch rotatorisch bewegbar ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10032740A DE10032740A1 (de) | 2000-07-05 | 2000-07-05 | Luftansaugvorrichtung für eine Brennkraftmaschine |
DE10032740 | 2000-07-05 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1170483A2 true EP1170483A2 (de) | 2002-01-09 |
EP1170483A3 EP1170483A3 (de) | 2002-12-18 |
Family
ID=7647925
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01114776A Withdrawn EP1170483A3 (de) | 2000-07-05 | 2001-06-26 | Luftansaugvorrichtung für eine Brennkraftmaschine |
Country Status (4)
Country | Link |
---|---|
US (1) | US6478011B2 (de) |
EP (1) | EP1170483A3 (de) |
JP (1) | JP2002089296A (de) |
DE (1) | DE10032740A1 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6622695B2 (en) * | 2001-11-20 | 2003-09-23 | Denso Corporation | Intake control system of internal combustion engine |
KR100482059B1 (ko) * | 2001-12-24 | 2005-04-13 | 현대자동차주식회사 | 차량 엔진의 흡기 유량 가변 차지 모션 장치 |
US6819981B2 (en) * | 2003-04-21 | 2004-11-16 | Invacare Corporation | Method and apparatus for setting speed/response performance parameters of a power driven wheelchair |
US7201141B2 (en) * | 2004-02-02 | 2007-04-10 | Ford Motor Company | Apparatus for controlling throttle shaft deflection and friction in dual bore throttle bodies |
CA2630614C (en) * | 2006-02-09 | 2010-04-13 | Darren Rivet | Engine air intake shut off valve |
US8042514B2 (en) * | 2008-07-24 | 2011-10-25 | Honda Motor Company, Ltd. | Throttle bodies and saddle-type vehicles including valved intake conduits for engine |
DE102008064539A1 (de) * | 2008-12-19 | 2010-06-24 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Drosselklappenanlage für eine Brennkraftmaschine |
CA2823865C (en) | 2012-08-17 | 2022-01-04 | Darren Rivet | Control method and system for internal combustion engine |
US9470162B2 (en) * | 2014-01-06 | 2016-10-18 | Ford Global Technologies, Llc | Method and system for EGR control |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4714063A (en) * | 1985-09-17 | 1987-12-22 | Mazda Motor Corporation | Intake system for internal combustion engine |
US5098064A (en) * | 1990-02-16 | 1992-03-24 | Siemens Automotive L.P. | Engine throttle blade sealing |
US5181492A (en) * | 1990-01-09 | 1993-01-26 | Firma Carl Freudenberg | Shaft-rotated throttle disk |
WO1996035866A2 (de) * | 1995-05-09 | 1996-11-14 | Filterwerk Mann & Hummel Gmbh | Drosselklappe für die ansaugluftmengensteuerung eines verbrennungsmotors und ein verfahren zu deren herstellung |
EP0968360A1 (de) * | 1997-03-20 | 2000-01-05 | FILTERWERK MANN + HUMMEL GmbH | Saugmodul |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4284264A (en) * | 1980-01-17 | 1981-08-18 | Aktiebolaget Somas Ventiler | Butterfly valves |
DE3704717A1 (de) * | 1986-02-25 | 1987-08-27 | Volkswagen Ag | Mehrzylinder-brennkraftmaschine mit mitteln zur drallerhoehung |
KR100222527B1 (ko) * | 1994-11-24 | 1999-10-01 | 정몽규 | 내연기관의 흡기조절장치 |
DE19545746C1 (de) * | 1995-12-07 | 1997-06-12 | Siemens Ag | Luftansaugvorrichtung für eine Brennkraftmaschine |
GB2333803B (en) * | 1998-01-29 | 2001-07-04 | Ford Global Tech Inc | Intake system for an internal combustion engine |
JP2000345865A (ja) * | 1999-06-07 | 2000-12-12 | Mitsubishi Electric Corp | 空気流量制御装置用スロットルバルブ |
US6263917B1 (en) * | 1999-08-12 | 2001-07-24 | Delphi Technologies, Inc. | Multiple-bore throttle valve having central shaft end-play restraint |
-
2000
- 2000-07-05 DE DE10032740A patent/DE10032740A1/de not_active Withdrawn
-
2001
- 2001-06-26 EP EP01114776A patent/EP1170483A3/de not_active Withdrawn
- 2001-07-04 JP JP2001203505A patent/JP2002089296A/ja active Pending
- 2001-07-05 US US09/898,444 patent/US6478011B2/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4714063A (en) * | 1985-09-17 | 1987-12-22 | Mazda Motor Corporation | Intake system for internal combustion engine |
US5181492A (en) * | 1990-01-09 | 1993-01-26 | Firma Carl Freudenberg | Shaft-rotated throttle disk |
US5098064A (en) * | 1990-02-16 | 1992-03-24 | Siemens Automotive L.P. | Engine throttle blade sealing |
WO1996035866A2 (de) * | 1995-05-09 | 1996-11-14 | Filterwerk Mann & Hummel Gmbh | Drosselklappe für die ansaugluftmengensteuerung eines verbrennungsmotors und ein verfahren zu deren herstellung |
EP0968360A1 (de) * | 1997-03-20 | 2000-01-05 | FILTERWERK MANN + HUMMEL GmbH | Saugmodul |
Also Published As
Publication number | Publication date |
---|---|
US20020023620A1 (en) | 2002-02-28 |
US6478011B2 (en) | 2002-11-12 |
EP1170483A3 (de) | 2002-12-18 |
DE10032740A1 (de) | 2002-02-21 |
JP2002089296A (ja) | 2002-03-27 |
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