EP1058782A1 - Ansaugvorrichtung für eine brennkraftmaschine - Google Patents
Ansaugvorrichtung für eine brennkraftmaschineInfo
- Publication number
- EP1058782A1 EP1058782A1 EP99908924A EP99908924A EP1058782A1 EP 1058782 A1 EP1058782 A1 EP 1058782A1 EP 99908924 A EP99908924 A EP 99908924A EP 99908924 A EP99908924 A EP 99908924A EP 1058782 A1 EP1058782 A1 EP 1058782A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- guide tube
- air inlet
- inlet line
- valve
- bore
- 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
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
-
- 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
- F02M26/12—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems characterised by means for attaching parts of an EGR system to each other or to engine parts
-
- 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
- F02M26/18—Thermal insulation or heat protection
-
- 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
-
- 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
Definitions
- the invention relates to an intake device for an internal combustion engine according to the features of the preamble of claim 1.
- the invention has for its object to provide an intake device for an internal combustion engine, which is characterized by a simple construction and by a very good efficiency.
- the presence of an opening through which a guide tube protrudes into the air inlet line has the advantage that a simple and therefore inexpensive piece of tube can be used as the guide tube, which is inserted through the opening into the air inlet line and secured captively.
- the introduction of an opening as a hole represents a simple manufacturing process, this hole already being taken into account when manufacturing the air inlet line and not subsequently must be brought.
- Characterized in that the guide tube protrudes into the air inlet lines there is the advantage that high wall temperatures of the air inlet line are avoided and the further fluid which is supplied is fed into the main flow which passes through the air inlet line.
- the further fluid that can be supplied is, for example, recirculated exhaust gas, but also fresh air, a fuel-air mixture or swirled fuel.
- the air inlet line has a throttle valve connector with a throttle valve, the bore with the guide tube being arranged in the region of the throttle valve connector.
- this throttle valve assembly which has a drivable throttle valve in a manner known per se in order to change the output of the internal combustion engine, forms a structural unit in which the bore for receiving the guide tube is provided.
- the throttle valve neck can be preassembled as a unit, to which only the air supply, for example from an air filter, and the connection to the intake area of the internal combustion engine then have to be made.
- the air inlet line or the throttle valve connector has a flange for attaching a valve for supplying the further fluid, the bore with the guide tube being arranged in the region of the flange.
- a valve for example an exhaust gas recirculation valve
- the valve can also be arranged at another location, so that the flange then serves to attach a feed line for the further fluid to it.
- the air inlet line or the flange can be firmly connected to the guide tube. This ensures that the guide tube is secured captively, since falling into the air inlet line can lead to damage or even destruction of the internal combustion engine.
- the fixed connection can advantageously be achieved by means of a pressing process, since this can be carried out easily, especially when taking into account the high temperatures which are present in exhaust gas recirculation.
- Other fastening processes such as welding, gluing or the like, are also conceivable, wherein in addition to non-positive connections, positive connections, which in particular meet the temperature requirements, must also be taken into account.
- an at least partially circumferential groove is provided in the air inlet line or in the flange in the region of the bore, into which an end region of the guide tube can be pressed.
- this also ensures a sealing effect and a good, streamlined supply of the additional fluid.
- Another advantage is that there is no need for complex machining of the guide tube, so that the use of a commercially available tube piece is made possible. Likewise, expensive machining (such as overtightening) of the sealing surface of the flange is advantageously dispensed with.
- the guide tube can be inserted into the bore and has means, in particular a circumferential collar, by means of which the guide tube can be held in a desired position.
- This has the advantage that no further processing steps are required in the area of the bore to mount the guide tube. It is simply inserted into the hole until the collar comes to rest on the sealing surface of the flange (or the surface of the air guide tube), so that, in addition to the simple assembly, there is again a high level of security against loss.
- the use of an assembly tool is not necessary, since after the valve or another supply line has been attached to the flange, the guide tube is fixed in its desired position.
- the guide tube has a flattened portion in its one end region with which it projects into the air inlet line.
- This has the advantage that the guide tube can be inserted into the bore more easily and quickly, since there is a positive guide because of the flattening.
- Such flattening is particularly advantageous when the diameter of the bore and the guide tube are largely the same.
- such a flattening can be omitted or used anyway if the diameter of the air guide tube is significantly smaller than the diameter of the bore, in which case it must be ensured that the means by means of which the guide tube is stable in its desired position are designed accordingly are chosen (in particular larger in diameter than the diameter of the bore) in order to ensure security.
- the guide tube has a triangular shape in its other end region, which points in the direction of the valve.
- This triangular shape in one end area of the guide tube provides an additional Before bias is generated in the holding area, in particular in the area of the circumferential groove, in order to ensure the tight fit of the guide tube.
- the guide tube is arranged on the valve or is part of the valve.
- the installation simplicity increases, since in this embodiment the guide tube and the valve form a structural unit and thus only the valve, in particular its housing, has to be fastened to the air inlet line.
- the further fluid is the exhaust gas of an internal combustion engine, the valve being designed as an exhaust gas recirculation valve, in particular as a controllable valve.
- Exhaust gas recirculation valves are known per se and serve to increase the efficiency of the internal combustion engine, so that there is no need to refer to their advantages here.
- the use of the guide tube is particularly advantageous when the exhaust gas from the internal combustion engine is returned as a further fluid, since there are high temperatures here, the inadmissibly high wall temperatures and material fatigue due to high temperature fluctuations in the area of the inlet and on the flange (throttle valve body made of metal , flanged plastic pipes), which can be effectively avoided by using the guide tube that directs the exhaust gases into the central area of the air inlet pipe.
- FIG. 1 a throttle valve connector
- Figures 2 to 10 configurations and locations of various guide tubes.
- FIG. 1 shows a piece of an air inlet line 1 through which combustion air for an internal combustion engine is supplied to a throttle valve connector 3 in the flow direction 2, for example coming from an air filter (not shown).
- This throttle valve connector 3 forms a structural unit and is firmly connected to the air inlet line, it being also conceivable that the air inlet line 1 is attached to the throttle valve connector 3. is cash.
- the throttle valve assembly 3 has a throttle valve 4, which is arranged on a throttle valve shaft 5, for adjusting the power of the internal combustion engine, the throttle valve shaft 5 being movable between a closed position and an open position by a drive arranged in a housing 6.
- the operation of such a throttle valve assembly is known per se, so that it does not need to be discussed further.
- the throttle valve connector 3 On the output side in the flow direction 2, the throttle valve connector 3 is connected to an intake pipe 7, which likewise leads to the internal combustion engine, in particular the intake tract of the individual cylinders, in a manner known per se.
- the throttle valve connector 3 (or the air inlet line 1 or the intake pipe 7) has a flange 8, a bore 9 being provided in the region of this flange 8.
- the flange 8 or the bore 9 can be provided directly when producing the throttle valve connector 3, but alternatively can also be produced by subsequent processing.
- the flange 8 also has mounting holes 10, which will be discussed later.
- FIG. 2 it is shown that a guide tube 11 is supported on a shoulder 12.
- Reference numeral 13 denotes an at least partially shown valve (in particular exhaust gas recirculation valve) which is fastened to the flange 8 with the interposition of a seal, this being done by means of screws which are screwed into the fastening bores 10.
- This attachment has the advantage that no further processing is necessary within the bore. It is conceivable, particularly if the bore 9 is used to manufacture the throttle valve. Penstutzens 3 is poured, this conical towards the inside of the throttle valve connector 3 to ensure the security against loss.
- FIG. 3 shows that the guide tube 11 has a collar 14 in its end region, which points in the direction of the valve 13. With this collar 14, the guide tube 11 can be held captively either on the sealing surface of the flange 8 or else on a correspondingly shaped shoulder within the valve 13. This has the advantage that in addition to the introduction of the bore 9 into the air inlet line 1 or the throttle valve connector 3, no further processing of the same is required and simple assembly is provided.
- Another advantage is that when the guide tube 11 is already inserted in the valve 13, a simple and quick assembly of these two elements is provided.
- FIG. 4 shows that the guide tube 11 is inserted into the bore 9 again in the throttle valve connector 3.
- the guide tube 11 is a commercially available piece of tube with a length in which the tube on the one hand does not protrude beyond the sealing surface of the flange 8 and on the other hand a piece into the air inlet line 1 or Throttle body 3 protrudes for the targeted supply of the fluid.
- the inner diameter of the guide tube 11 is to be selected so that the required volume of additional fluid can be supplied.
- the guide tube 11 is shown after completion of the pressing process, with the reference numeral 15 denotes a circumferential groove in the throttle valve body 3, in which the widened tube end 16 of the guide tube 11 engages after the pressing process.
- the pressing process can be carried out in such a way that the widened tube end 16 connects the guide tube 11 sealingly to the throttle valve connector 3, although this is not absolutely necessary since the valve 13 is attached to the flange 8, in particular with the interposition of a seal, for the sealing effect the supplied fluid is ensured.
- FIG. 6 The actual pressing process is shown in FIG. 6, for which purpose a counter-holder 17 is inserted into the interior of the throttle valve connector 3 (or the air inlet line 1) into an assembly position for the guide tube 11. The guide tube 11 is then inserted from the outside into the bore 9 until it comes to rest on the counter-holder 17 with its one end. The position of the counter-holder 17 and the length of the guide tube 11 are coordinated to the extent that the end of the guide tube 11 facing away from the counter-holder 17 ends at the level of the circumferential groove 15. Then a pressing tool 18 (for example a punch which has a conical flattening at the end, as shown in FIG.
- a pressing tool 18 for example a punch which has a conical flattening at the end, as shown in FIG.
- FIGS. 7 and 8 again show a guide tube 11 which has a flattened portion 20 in its one end region with which it projects into the air inlet line 1. This flattened portion 20 can be turned off, for example, whereby it can also be used in the guide tubes shown in the previous figures in order to simplify the assembly.
- the guide tube 11 In its other end region, which points in the direction of the valve 13, the guide tube 11 has a triangular shape 21 in order to generate an additional prestress in the region of the circumferential groove 15 and to ensure that the guide tube 11 is firmly seated after the pressing operation has been carried out.
- FIG. 9 shows a guide tube 11 which is fastened in the throttle valve connector 3 in a circumferential groove 22, which is designed in a step-like or largely round manner.
- FIG. 10 shows a throttle valve connector 3 which has a step-shaped bore 9, the inward diameter of the bore largely corresponding to the diameter of the guide tube 11 and receiving it.
- the outwardly directed part has a diameter which is larger than the outer diameter of the guide tube 11, which creates a shoulder by means of which the guide tube 11, which was widened at this end before insertion or is expanded after insertion, is shaped and / or is held non-positively and captively.
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)
- Exhaust-Gas Circulating Devices (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Lift Valve (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19807463 | 1998-02-24 | ||
DE19807463A DE19807463A1 (de) | 1998-02-24 | 1998-02-24 | Ansaugvorrichtung für eine Brennkraftmaschine |
PCT/EP1999/001060 WO1999043946A1 (de) | 1998-02-24 | 1999-02-18 | Ansaugvorrichtung für eine brennkraftmaschine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1058782A1 true EP1058782A1 (de) | 2000-12-13 |
EP1058782B1 EP1058782B1 (de) | 2002-10-02 |
Family
ID=7858585
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99908924A Expired - Lifetime EP1058782B1 (de) | 1998-02-24 | 1999-02-18 | Ansaugvorrichtung für eine brennkraftmaschine |
Country Status (6)
Country | Link |
---|---|
US (1) | US6443134B1 (de) |
EP (1) | EP1058782B1 (de) |
KR (1) | KR20010041274A (de) |
BR (1) | BR9908180A (de) |
DE (2) | DE19807463A1 (de) |
WO (1) | WO1999043946A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10011933A1 (de) * | 2000-03-11 | 2001-09-27 | Daimler Chrysler Ag | Luftansaugvorrichtung für Verbrennungsmotoren mit direkter Kraftstoffeinspritzung |
DE10054264A1 (de) * | 2000-11-02 | 2002-05-08 | Opel Adam Ag | Saugrohranlage für eine Brennkraftmaschine |
CA2495895A1 (en) * | 2002-09-08 | 2004-03-18 | Applera Corporation | Methods, compositions and libraries pertaining pna dimer and pna oligomer synthesis |
JP4657250B2 (ja) * | 2007-05-29 | 2011-03-23 | 株式会社デンソー | 吸気装置 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4741295A (en) * | 1985-09-09 | 1988-05-03 | Honda Giken Kogyo Kabushiki Kaisha | Intake manifold system for V-type multiple cylinder internal combustion engine |
JPS63164554A (ja) * | 1986-12-25 | 1988-07-07 | Fujitsu Ltd | デ−タ速度自動認識システム |
JPH07691Y2 (ja) * | 1988-07-12 | 1995-01-11 | 日産自動車株式会社 | 内燃機関のegrバルブ取付構造 |
DE3932300C2 (de) | 1989-09-28 | 2003-03-06 | Siemens Ag | Drosselklappenstutzen |
FR2669078B1 (fr) * | 1990-11-14 | 1994-11-25 | Peugeot | Dispositif de recirculation des gaz d'echappement d'un moteur a combustion interne. |
JP2548036Y2 (ja) * | 1991-01-25 | 1997-09-17 | アイシン精機株式会社 | 排気ガス還流装置 |
DE4111240C1 (de) * | 1991-04-08 | 1992-06-04 | Fa. Carl Freudenberg, 6940 Weinheim, De | |
RU2107183C1 (ru) * | 1992-08-22 | 1998-03-20 | Акционерное общество "АвтоВАЗ" | Впускное устройство для двигателя внутреннего сгорания |
FR2710952B1 (fr) * | 1993-10-08 | 1995-11-17 | Renault | Dispositif de recirculation des gaz d'échappement d'un moteur à combustion interne. |
DE4338194C2 (de) * | 1993-11-09 | 2003-04-03 | Pierburg Gmbh | Luftansaugkanalsystem für Brennkraftmaschinen |
US5492104A (en) * | 1994-11-03 | 1996-02-20 | General Motors Corporation | Exhaust gas recirculation for an internal combustion engine |
JP3095665B2 (ja) * | 1995-10-16 | 2000-10-10 | 株式会社日本自動車部品総合研究所 | 内燃機関の蒸発燃料制御装置 |
DE19627035C2 (de) * | 1996-07-05 | 1998-07-16 | Elringklinger Gmbh | Abgas-Rückführvorrichtung |
US5970960A (en) * | 1996-09-18 | 1999-10-26 | Nissan Motor Co., Ltd. | Exhaust gas recirculation system of internal combustion engine |
DE19649713A1 (de) * | 1996-11-30 | 1998-06-04 | Daimler Benz Ag | Ansaugsystem einer Mehrzylinder-Brennkraftmaschine mit Abgasrückführung |
-
1998
- 1998-02-24 DE DE19807463A patent/DE19807463A1/de not_active Withdrawn
-
1999
- 1999-02-18 KR KR1020007009372A patent/KR20010041274A/ko not_active Application Discontinuation
- 1999-02-18 BR BR9908180-6A patent/BR9908180A/pt not_active IP Right Cessation
- 1999-02-18 EP EP99908924A patent/EP1058782B1/de not_active Expired - Lifetime
- 1999-02-18 WO PCT/EP1999/001060 patent/WO1999043946A1/de not_active Application Discontinuation
- 1999-02-18 US US09/622,868 patent/US6443134B1/en not_active Expired - Fee Related
- 1999-02-18 DE DE59902927T patent/DE59902927D1/de not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO9943946A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE19807463A1 (de) | 1999-08-26 |
DE59902927D1 (de) | 2002-11-07 |
BR9908180A (pt) | 2000-10-24 |
EP1058782B1 (de) | 2002-10-02 |
US6443134B1 (en) | 2002-09-03 |
KR20010041274A (ko) | 2001-05-15 |
WO1999043946A1 (de) | 1999-09-02 |
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