SE452351B - COMBUSTION ENGINE EXHAUST SYSTEM WITH A FILTER AND A HEATABLE METHODS FOR DETECTION OF THE EXHAUST GAS COMPOSITION - Google Patents
COMBUSTION ENGINE EXHAUST SYSTEM WITH A FILTER AND A HEATABLE METHODS FOR DETECTION OF THE EXHAUST GAS COMPOSITIONInfo
- Publication number
- SE452351B SE452351B SE8107098A SE8107098A SE452351B SE 452351 B SE452351 B SE 452351B SE 8107098 A SE8107098 A SE 8107098A SE 8107098 A SE8107098 A SE 8107098A SE 452351 B SE452351 B SE 452351B
- Authority
- SE
- Sweden
- Prior art keywords
- exhaust
- filter
- line
- exhaust system
- combustion engine
- Prior art date
Links
- 238000002485 combustion reaction Methods 0.000 title claims description 6
- 238000001514 detection method Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 239000007789 gas Substances 0.000 claims description 13
- 239000000523 sample Substances 0.000 claims description 11
- 239000000126 substance Substances 0.000 claims description 5
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/04—Testing internal-combustion engines
- G01M15/10—Testing internal-combustion engines by monitoring exhaust gases or combustion flame
- G01M15/102—Testing internal-combustion engines by monitoring exhaust gases or combustion flame by monitoring exhaust gases
- G01M15/104—Testing internal-combustion engines by monitoring exhaust gases or combustion flame by monitoring exhaust gases using oxygen or lambda-sensors
-
- 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
- F02M26/35—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with means for cleaning or treating the recirculated gases, e.g. catalysts, condensate traps, particle filters or heaters
-
- 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
-
- 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
- F02M26/45—Sensors specially adapted for EGR systems
- F02M26/46—Sensors specially adapted for EGR systems for determining the characteristics of gases, e.g. composition
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Emergency Medicine (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Sampling And Sample Adjustment (AREA)
- Exhaust Silencers (AREA)
- Exhaust Gas After Treatment (AREA)
Description
452 351 material eller också av metall och de är installerade på sådant sätt, att mätsonden 3 lätt kan utbytas utan rubbning av elementens 9 funk- tion. 452 351 materials or also of metal and they are installed in such a way, that the measuring probe 3 can be easily replaced without disturbing the function of the elements 9 tion.
Det visade avgassystemet är uppbyggt utan anlitande av den vid kända konstruktioner vanliga, av filter plus mätsond bestående enheten.The exhaust system shown is built without using it at known constructions common, of filter plus measuring probe consisting of the unit.
Genom att filtret 2 anordnas separat och på avstånd från mätsonden 3 erhåller man den fördelen, att filtret 2 arbetar mycket effektivare p.g.a. att temperaturenna invid.filtret är Efire.By arranging the filter 2 separately and at a distance from the measuring probe 3 you get the advantage that the filter 2 works much more efficiently p.g.a. that the temperature next to the filter is E fi re.
Den från avgasröret l avtappade avgasen ledes över filtret 2 till mätsonden 3, från vilken den sedan går till insugningsröret 10 -use fig. l. Även de utfiltrerade ämnena jämte ackumulerat vatten ledes till insugningsröret 10, nämligen via borttransportledningen 6 och ett mel- lankopplat stryporgan, betecknat 7. Tilledningarna till röret 10 kan emellertid även vara anordnade enligt t.ex. fig. 2, där avgasledningen 5 och borttransportledningen 6 inmynnar i en gemensam återföringsled- ning ll, som går till insugningsröret 10. Alternativt kan denna gemen- samma återföringsledning ll kommunicera direkt med avgasröret 1, såsom visas i fig. Ä och 6. Det mellankopplade stryp-organet 7 har till uppgift att säkerstä1la,att en tillräckligt stor delström av avgasen passerar mätsonden 3.The exhaust gas discharged from the exhaust pipe 1 is passed over the filter 2 to measuring probe 3, from which it then goes to the intake pipe 10 -use Fig. 1. The filtered substances as well as accumulated water are also led to the suction pipe 10, namely via the removal line 6 and an intermediate connected to choke means, designated 7. The leads to the pipe 10 can however, can also be arranged according to e.g. Fig. 2, where the exhaust line 5 and the transport line 6 opens into a common return line. ll, which goes to the suction pipe 10. Alternatively, this the same return line ll communicate directly with the exhaust pipe 1, such as is shown in Figs. Ä and 6. The interconnected throttle member 7 has task to ensure that a sufficiently large partial flow of the exhaust gas passes the measuring probe 3.
En fördel med avgasens återföring via insugningsröret är att en minskning av skadliga ämnen i förbränningsavgaserna kan uppnås genom inreglering av den mängd avgrenad avgas, som återföres.An advantage of the exhaust gas return via the intake pipe is that a reduction of harmful substances in the combustion exhaust gases can be achieved by adjustment of the amount of branched exhaust gas that is returned.
Enligt fig. 3 och H kan en pump 12 vara anordnad för förbättring av avgastransporten. Enligt fig. 3 är pumpen 12 anordnad i avgasled- ningen 5; enligt fig. U är den placerad i den gemensamma återförings- ledningen ll.According to Figs. 3 and H, a pump 12 may be provided for improvement of exhaust transport. According to Fig. 3, the pump 12 is arranged in the exhaust line. ningen 5; according to Fig. U, it is placed in the common return the line ll.
Den erforderliga strömningshastigheten för delströmmen av avgas- erna inställes medelst en motsvarande tryckdifferens. Denna erhålles dels genom utnyttjande av strömningsförhållandena, såsom det dynamis- ka trycket eller tryckvågor i huvudavgasströmmen, dels genom avled- ning av delströmmen till insugningsröret 10, och dels, eventuellt, ge- nom inkoppling av pumpen 12 eller inkoppling av klaffventiler 13, lü, 15, av vilka ventilen 13 är anordnad i avgasledningen U (fig. 5 och 6) och ventilen lü är anordnad i transportledningen 6 (fig. 5) eller i den gemensamma återföringsledningen ll (fig. 6). Vid utföringsfor- men enligt fig. 5 blir ett stryporgan onödigt; men för säkerställande av att filtret 2 hela tiden skal1.kunna fungera på ett tillfredsstäl- lande sätt måste den genom avgastillförselledningen H tillförda del- 452 551 strömmen vara större än den delström, som via ledningen 5 införes i insugningsröret 10.The required flow rate for the partial flow of exhaust gas are set by means of a corresponding pressure difference. This is obtained partly by utilizing the flow conditions, such as the dynamic pressure or pressure waves in the main exhaust stream, partly by diverting sub-current to the suction pipe 10, and, if necessary, by connecting the pump 12 or connecting the valve valves 13, lü, 15, of which the valve 13 is arranged in the exhaust line U (fig. 5 and 6) and the valve lü is arranged in the transport line 6 (fig. 5) or in the common return line 11 (Fig. 6). In the case of but according to Fig. 5 a throttling means becomes unnecessary; but for securing that the filter 2 must always be able to function satisfactorily. the part supplied by the exhaust gas supply line H 452 551 the current must be greater than the partial current which is introduced into the line 5 suction pipe 10.
Ventilen 13 i avgasledningen U är anordnad att gå till öppetläge vid övertrycksmaxima, medan ventilerna 14, 15 är anordnade att gå till öppetläge vid undertrycksminima (d.v.s. kraftiga undertryck), så att storleken av avgasdelströmmens genomsättning blir beroende av motorns varvtal. Den sålunda inställda strömningshastigheten möjliggör genom- matning av en för mätsonden tillräcklig avgasström så att man erhåller tillräcklig effektivitet i fråga om minskningen av förbränningsav- gasernas skadliga ämnen vid exempelvis såüma regleringssystem som föreligger vid otto- eller dieselförbränningsmotorer eller som visas i utföringsexemplen enligt fig. l-U.The valve 13 in the exhaust line U is arranged to go to the open position at overpressure maxima, while the valves 14, 15 are arranged to go to open position at negative pressure minima (i.e. strong negative pressures), so that the magnitude of the throughput of the exhaust substream becomes dependent on the engine speed. The flow rate thus set enables throughput feeding an exhaust gas flow sufficient for the measuring probe to obtain sufficient efficiency in reducing combustion emissions harmful substances of gases in, for example, such control systems as present in otto or diesel internal combustion engines or as shown in the exemplary embodiments according to Figs. 1-U.
Den för avgasens tillförsel till sonden anordnade ledningen 4 sträcker sig in i avgasröret 1, varvid den är krökt eller bockad så, att dess inloppsöppning 16 vetter i en riktning som är motsatt mot huvudavgasströmmens strömningsriktníng. Utloppsöppningen 17 av bort- transportledningen 6 (fig. 5) och utloppsöppningen 18 av den gemen- samma återföringsledningen ll (fig. H, 6) är likaledes belägna på krökta eller bockade ändpartier av respektive ledning, vilka sträcker sig in i avgasröret l,nen dessa ögqüngar 17, 18 ligger vända i ström- ningsriktningen för huvudavgasströmmen.The line 4 for the exhaust gas supply to the probe extends into the exhaust pipe 1, being curved or bent so, that its inlet opening 16 faces in a direction opposite to the main direction of flow of the exhaust gas stream. The outlet opening 17 of the removal the transport line 6 (Fig. 5) and the outlet opening 18 of the common the same return line 11 (Figs. H, 6) are likewise located on curved or bent end portions of the respective conduit, which extend into these exhaust pipe 1, these eyelets 17, 18 are facing direction of the main exhaust stream.
Claims (5)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3045112A DE3045112C2 (en) | 1980-11-29 | 1980-11-29 | Exhaust system for an internal combustion engine with a sensor that detects the composition of the exhaust gas |
Publications (2)
Publication Number | Publication Date |
---|---|
SE8107098L SE8107098L (en) | 1982-05-30 |
SE452351B true SE452351B (en) | 1987-11-23 |
Family
ID=6117943
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8107098A SE452351B (en) | 1980-11-29 | 1981-11-27 | COMBUSTION ENGINE EXHAUST SYSTEM WITH A FILTER AND A HEATABLE METHODS FOR DETECTION OF THE EXHAUST GAS COMPOSITION |
Country Status (5)
Country | Link |
---|---|
DE (1) | DE3045112C2 (en) |
FR (1) | FR2495220B1 (en) |
GB (1) | GB2088476B (en) |
IT (1) | IT1139831B (en) |
SE (1) | SE452351B (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3805832A1 (en) * | 1987-07-11 | 1989-01-19 | Teves Gmbh Alfred | FLUID FILLING DEVICE |
US5614658A (en) * | 1994-06-30 | 1997-03-25 | Dresser Industries | Exhaust sensor |
GB2320056A (en) * | 1996-12-07 | 1998-06-10 | Ford Motor Co | I.c. engine EGR system has blower, and internal recirculation for cooling or heating |
DE19958441C2 (en) * | 1999-12-03 | 2002-03-14 | Siemens Ag | Method and device for measuring gas constituents |
CN108026870B (en) | 2015-09-11 | 2022-03-22 | 沃尔沃卡车集团 | Exhaust gas recirculation device |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE718153C (en) * | 1938-05-08 | 1942-03-04 | Martini Hueneke Und Salzkotten | Device for reducing the risk of knocking in carburettor internal combustion engines |
US3492980A (en) * | 1967-11-13 | 1970-02-03 | Paul R Beck | Air pollution inhibiting means in the form of a fuel recirculating apparatus for an internal combustion engine |
US3616274A (en) * | 1969-11-24 | 1971-10-26 | Gen Motors Corp | Method and apparatus for monitoring exhaust gas |
FR2252765A5 (en) * | 1973-11-23 | 1975-06-20 | Sibe | I.C.E. carbon monoxide exhaust measurement method - utilises part of the exhaust gases passed through a channel |
US3885540A (en) * | 1974-06-10 | 1975-05-27 | Ford Motor Co | Air-fuel ratio control system for a combustion engine |
NL7605042A (en) * | 1976-05-12 | 1977-11-15 | Philips Nv | SENSOR DEVICE. |
FR2376292A1 (en) * | 1976-12-30 | 1978-07-28 | Peugeot & Renault | IMPROVEMENT OF DEVICES FOR CONTROLLING THE COMPOSITION OF THE EXHAUST GASES OF A THERMAL ENGINE |
-
1980
- 1980-11-29 DE DE3045112A patent/DE3045112C2/en not_active Expired
-
1981
- 1981-11-17 GB GB8134585A patent/GB2088476B/en not_active Expired
- 1981-11-24 IT IT25251/81A patent/IT1139831B/en active
- 1981-11-27 SE SE8107098A patent/SE452351B/en not_active IP Right Cessation
- 1981-11-27 FR FR8122250A patent/FR2495220B1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE3045112A1 (en) | 1982-06-09 |
FR2495220A1 (en) | 1982-06-04 |
IT8125251A0 (en) | 1981-11-24 |
IT1139831B (en) | 1986-09-24 |
FR2495220B1 (en) | 1986-12-05 |
GB2088476B (en) | 1984-12-05 |
DE3045112C2 (en) | 1985-09-19 |
GB2088476A (en) | 1982-06-09 |
SE8107098L (en) | 1982-05-30 |
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