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SE449640B - Charger for IC engine - Google Patents

Charger for IC engine

Info

Publication number
SE449640B
SE449640B SE8205858A SE8205858A SE449640B SE 449640 B SE449640 B SE 449640B SE 8205858 A SE8205858 A SE 8205858A SE 8205858 A SE8205858 A SE 8205858A SE 449640 B SE449640 B SE 449640B
Authority
SE
Sweden
Prior art keywords
turbine
exhaust
engine
gas
air compressor
Prior art date
Application number
SE8205858A
Other languages
Swedish (sv)
Other versions
SE8205858L (en
SE8205858D0 (en
Inventor
S-O Kronogard
C-O Kronogard
N H Kronogard
Original Assignee
Volvo Ab
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to US06/292,947 priority Critical patent/US4474007A/en
Priority to DE19813133952 priority patent/DE3133952A1/en
Priority to FR8117669A priority patent/FR2491129B1/en
Application filed by Volvo Ab filed Critical Volvo Ab
Priority to SE8205858A priority patent/SE449640B/en
Publication of SE8205858L publication Critical patent/SE8205858L/en
Publication of SE8205858D0 publication Critical patent/SE8205858D0/en
Priority to US06/636,593 priority patent/US4616482A/en
Priority to FR8413123A priority patent/FR2549534A1/en
Priority to US06/854,616 priority patent/US4674284A/en
Publication of SE449640B publication Critical patent/SE449640B/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
    • F02C6/04—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output
    • F02C6/10—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output supplying working fluid to a user, e.g. a chemical process, which returns working fluid to a turbine of the plant
    • F02C6/12—Turbochargers, i.e. plants for augmenting mechanical power output of internal-combustion piston engines by increase of charge pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/013—Engines characterised by provision of pumps driven at least for part of the time by exhaust with exhaust-driven pumps arranged in series
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/005—Exhaust driven pumps being combined with an exhaust driven auxiliary apparatus, e.g. a ventilator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/007—Engines characterised by provision of pumps driven at least for part of the time by exhaust with exhaust-driven pumps arranged in parallel, e.g. at least one pump supplying alternatively
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/02—Gas passages between engine outlet and pump drive, e.g. reservoirs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/12—Control of the pumps
    • F02B37/20—Control of the pumps by increasing exhaust energy, e.g. using combustion chamber by after-burning
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/12—Control of the pumps
    • F02B37/24—Control of the pumps by using pumps or turbines with adjustable guide vanes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B41/00—Engines characterised by special means for improving conversion of heat or pressure energy into mechanical power
    • F02B41/02—Engines with prolonged expansion
    • F02B41/10—Engines with prolonged expansion in exhaust turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
    • F02B67/10—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of charging or scavenging apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Supercharger (AREA)

Abstract

The turbocharger for an internal combustion engine has pipes (12,13) connecting to the inlet and exhaust engine openings in a one piece casing. Inside this is fitted the turbine/compressor unit (16) with axial outlet (14) and inlet (15). The casing has a cylindrical opening (22) completely open at at least one end. Inside this the turbine/compressor unit is fitted in a cylindrical case (20) which can slide axially. The inlet and exhaust pipes are assembled, separately, in one half of the casing which houses the rotors.

Description

449 640 strömmen direkt från den första turbinrotorns utlopp. 449 640 the current directly from the outlet of the first turbine rotor.

Den andra och den tredje turbinens axlar är lämpligen sammankopplade via en växel. En hjälpaxel är lämpligen in- rättad att överföra drivkraft från växeln till uppladd- m ningsaggregatet.The shafts of the second and third turbines are suitable connected via a switch. An auxiliary shaft is suitably included. corrected to transfer driving force from the gear unit to the charging m unit.

Medel för tillförsel av bränsle till avgasledningen mellan motorns gasutlopp och uppladdningsaggregatets gas- turbin, och/eller mellan denna och den andra avgasturbinen är företrädesvis till hands för att möta varierande belast- ningsbehov.Means for supplying fuel to the exhaust line between the engine's gas outlet and the charger's gas turbine, and / or between this and the other exhaust turbine is preferably on hand to meet varying loads need.

Uppfinningen kommer här nedan att beskrivas med hän- visning till bifogade ritningar, på vilka Fig. 1 visar en trecylindrig motor med uppladdningsaggregat och en andra gasturbin drivande en hjälpapparat, Fig. 2 visar schematiskt turboaggregatsystemet i Fig. 1 uppskuret, Fig. 3 visar en dubbelsnäcka för överledande av gas från aggregatturbinen till den andra avgasturbinen, och Fig. 4 visar ett modifierat arrangemang av rotorenheten.The invention will be described below with reference to display to the accompanying drawings, on which Fig. 1 shows a three-cylinder engine with a charger and a second gas turbine driving an auxiliary apparatus, Fig. 2 schematically shows the turbocharger system in Fig. 1 cut up, Fig. 3 shows a double screw for transferring gas from the unit turbine to the other exhaust turbine, and Fig. 4 shows a modified arrangement of the rotor unit.

Fig. 1 visar en uppladdad motor 10, där avgas- och luftledningarna 12, 13 är samlade i ett hölje 11, som inne- håller rotorenheten för ett uppladdningsaggregat. Luftin- loppet är betecknat med 14 och avgasutloppet från höljet är betecknat med l4a. Utgående drivaxel är betecknad med 15.Fig. 1 shows a charged engine 10, where exhaust and the overhead lines 12, 13 are assembled in a housing 11, which contains holds the rotor unit for a charger. Luftin- the passage is denoted by 14 and the exhaust outlet from the housing is denoted by l4a. Outgoing drive shaft is denoted by 15.

Man kan öka uppladdningsaggregatturbinens effekt genom tillförsel av bränsle till avgasledningen. Avgaserna inne- håller i allmänhet tillräckligt mycket syre för förbränning av ytterligare bränsle och med den rådande höga temperatu- ren sker en snabb förgasning och antändning. Man kan till- föra gasformigt eller flytande bränsle, men kan även arbeta med fast bränsle i pulverform, eventuellt uppslammat i Q vätska eller i gelform. Tillförselanordningen kan vara av ï konventionellt slag vid brännare, och antyds i Fig. 1 en- dast med en rörledning.You can increase the power of the charger turbine by supply of fuel to the exhaust line. The exhaust gases generally contains enough oxygen for combustion of additional fuel and with the prevailing high temperature clean there is a rapid gasification and ignition. You can add carry gaseous or liquid fuel, but can also work with solid fuel in powder form, possibly suspended in Q liquid or in gel form. The supply device may be of ï conventional type in burners, and is indicated in Fig. 1 dast with a pipeline.

Pâ ett likartat sätt kan man vid behov, alternativt eller tillsammans med den ovan berörda tillsatsförbränning- en, ordna med bränsletillskott till en andra gasturbinen.In a similar way, you can if necessary, alternatively or together with the additive combustion one, arrange fuel additions to a second gas turbine.

Motorn 10 är utrustad med ett turboaggregat 16, 17 och Ä49 640 en andra avgasturbin 18, vilka är anordnade med sina axlar horisontellt.The engine 10 is equipped with a turbocharger 16, 17 and Ä49 640 a second exhaust turbine 18, which are arranged with their shafts horizontally.

Aggregatets uppbyggnad framgår bättre av Fig. 2. Kom- pressorn 17 och den ena drivande avgasturbinen 16 är båda ' av radiell typ, där den senare är inrättad för inâtriktad strömning. Den andra avgastubinen 17 är av liknande typ.The structure of the unit is better shown in Fig. 2. the compressor 17 and one driving exhaust turbine 16 are both 'of the radial type, where the latter is set up for alignment flow. The second exhaust duct 17 is of a similar type.

Effekten från den andra avgasturbinen kan genom kugg- hjuls- eller bälttransmission, eventuellt av variabel typ, överföras till den utgående drivaxeln 15. Detta kan lämp- ligen ske i anslutning till motorns här icke visade sväng- hjul.The power from the other exhaust turbine can be wheel or belt transmission, possibly of variable type, transmitted to the output drive shaft 15. This may be occur in connection with the engine shown here wheel.

I det visade utförandet driver den andra avgasturbinen 18 en hjälpapparat 19, t.ex. en elgenartor eller en hyd- raulpump för laddning av en ackumulator, t.ex. av sväng- hjulstyp, för s.1<. hybriddrift.In the embodiment shown, the second exhaust turbine drives 18 an auxiliary device 19, e.g. an elk gene or a raw pump for charging an accumulator, e.g. of swing- wheel type, for p.1 <. hybrid operation.

En kåpa 20 innehåller transmissioner till övriga hjälp- apparater.A cover 20 contains transmissions for other auxiliary appliances.

Avloppet från aggregatturbinen 16 passerar via en axiell kanal och en dubbelsnäcka 21 - se Fig. 3 - till den andra avgasturbinen 17. Dubbelsnäckans båda kamrar 22, 23 är så formade att man får ett smidigt gasflöde med natur- lig diffusorverkan.The drain from the unit turbine 16 passes through a axial channel and a double screw 21 - see Fig. 3 - to it second exhaust turbine 17. Both chambers 22, 23 of the double screw are so shaped that you get a smooth gas flow with natural diffuser effect.

Endera eller båda väggarna vid övergången mellan dub- belsnäckans båda kamrar kan utföras med rörlig läpp 24 som medger justering av flödespassagens storlek.Either or both walls at the transition between both chambers of the bellows can be made with movable lip 24 which allows adjustment of the size of the flow passage.

En brännkammare 25 är här inlagd mellan avgaslådan 12 och aggregatturbinen 16, så att dennas effekt kan höjas vid behov. Kompressorn 17 kan förses med rörliga ledskovlar 26a, b, vid inlopp och/eller utlopp, och båda turbinerna 16 och 18 är försedda med inloppsledskovlar 27c, d.A combustion chamber 25 is inserted here between the exhaust box 12 and the unit turbine 16, so that its power can be increased at needs. The compressor 17 can be equipped with movable guide vanes 26a, b, at inlet and / or outlet, and both turbines 16 and 18 are provided with inlet vanes 27c, d.

Brännkammaren kan vara inrättad för reverserat flöde, vilket ger ökad längd på gasvägen och förbättrar förgasning av det nya bränsle, som lämpligen tillförs genom med rota- tionsorgan försedd brännare. Brännkammaren utformas lämp- ligen med konisk diffusor som resulterar i hastighetsreduk- tion. Tändning säkerställs genom tändstift, eventuellt i anslutning till flamhållare.The combustion chamber may be set up for reverse flow, which increases the length of the gas path and improves gasification of the new fuel, which is suitably supplied by rotary burner. The combustion chamber is designed to with a conical diffuser which results in a speed reduction tion. Ignition is ensured by spark plugs, possibly in connection to flame holder.

Fig. 4 visar en vidareutveckling av aggregatet enligt 449 640 Fig. 2.Fig. 4 shows a further development of the unit according to 449 640 Fig. 2.

Motorn 30 är av samma slag som tidigare och är försedd med en luftkompressor 31, som drivs av en första avgastur- binrotor 32. En andra turbinrotor 33 är, liksom i utföran- det enligt Fig. 2 anordnad i serie efter den första samt är för skjuten axiellt och vertikalt i förhållande till den första avgasturbinen 32. Här är emellertid en tredje tur- binrotor 34 inkopplad mellan de två nyssnämnda turbinroto- rerna 32, 33. Turbinrotorn 34 är inrättad för väsentligen radiellt utåtriktad strömning och tar emot gas direkt från den första turbinrotorns 32 utlopp. Turbinrotorerna 34 och 33 är belägna i samma vertikala plan, och gasöverledning mellan dem sker via en dubbelsnäcka 35 av samma slag som den som visas i Fig. 3.The motor 30 is of the same type as before and is equipped with an air compressor 31, which is driven by a first exhaust gas bin rotor 32. A second turbine rotor 33 is, as in the embodiment it according to Fig. 2 arranged in series after the first and is for shot axially and vertically relative to it the first exhaust turbine 32. Here, however, a third bin rotor 34 coupled between the two turbine rotors just mentioned 32, 33. The turbine rotor 34 is arranged substantially radially outward flow and receives gas directly from the outlet of the first turbine rotor 32. Turbine rotors 34 and 33 are located in the same vertical plane, and gas transmission between them takes place via a double screw 35 of the same type as the one shown in Fig. 3.

En växel 36 av planettyp förbinder andra och tredje turbinrotorernas 33, 34 axlar. Utgående axel 36a kan driva hjälpapparater, eller sammankopplas med utgående drivaxel 37. Moton är här utformad med alternativt kraftuttag 37a (streckat).A planetary gear 36 connects the second and third the shafts of the turbine rotors 33, 34. Output shaft 36a can drive auxiliary devices, or connected to the output drive shaft 37. The motor is here designed with alternative power take-off 37a (dashed).

En hjälpaxel 38 gör det möjligt att överföra effekt båda vägar mellan den för kompressor 31 och första turbin- rotor 32 gemensamma axeln och växeln 36. En brännkammare 39 är ansluten mellan avgaslådan 13 och den första turbin- rotorn 32. Rörliga ledskovlar 40a, b, c, d finns här vid inloppet till kompressorn samt vid inloppen till de tre turbinrotorerna.An auxiliary shaft 38 makes it possible to transmit power both ways between that of compressor 31 and first turbine rotor 32 common shaft and gear 36. A combustion chamber 39 is connected between the exhaust box 13 and the first turbine rotor 32. Movable guide vanes 40a, b, c, d are located here the inlet to the compressor and at the inlets to the three the turbine rotors.

Då avgasledningar, brännkammare och turbinsystem i stor utsträckning tillverkas av keramiskt material, blir livs- längden mycket stor, och komponenterna varar motorns driftstid ut. Detta medför mycket god drifts- och service- ekonomi. Luftlagrade rotorers lagersystem fordrar ej heller något underhåll.Then exhaust pipes, combustion chambers and turbine systems in large largely made of ceramic material, becomes the length is very large, and the components last the engine operating time out. This results in very good operating and service economy. Air bearing rotor bearing systems do not require either some maintenance.

Det keramiska materialet har en specifik vikt av cirka 1/3 av det för stålmaterial, vilket gör konstruktionen mycket lätt. På grund av en höga specifika effekten som kan uppnås, kommer motoranläggningens dimensioner att bli små.The ceramic material has a specific gravity of approx 1/3 of that for steel material, which makes the construction very easy. Due to a high specific effect that can achieved, the dimensions of the engine system will be small.

Avgasturbinerna blir endast ungefär hälften så stora som vid dagens installationer. 449 640 Vid en Otto-motor anordnas lämpligen s.k. knacknings- kontrollorgan, som känner eventuella ändringar i trycket i cylindern och som vid turboladdning påverkar en ventil i by-pass-ledning. Motorn kan då ständigt fås att arbeta vid så högt BMEP som möjligt, utan knackning. Detta erbjuder även en automatisk anpassning till bränslen med olika ok- tanantal och/eller kvantitet.The exhaust turbines will only be about half the size of at today's installations. 449 640 In the case of an Otto engine, so-called knocking inspection bodies, which are aware of any changes in the pressure in the cylinder and which in the case of turbocharging affects a valve in by-pass line. The engine can then be constantly worked on as high BMEP as possible, without knocking. This offers also an automatic adaptation to fuels with different quantity and / or quantity.

Vätteninsprutning kan även tillämpas, varvid vattnet lämpligen för erhållande av maximal finfördelning tillförs genom dysa före uppladdningsaggregatets kompressor.Hydrogen injection can also be applied, leaving the water suitable for obtaining maximum atomization is added through nozzle before compressor of the charger.

Turbinrotorer av keramiskt material är väl lämpade att ta hand om gaser erhållna vid förbränning av fast bränsle, t.ex. kolpulver.Turbine rotors made of ceramic material are well suited to take care of gases obtained from the combustion of solid fuel, for example carbon powder.

Uppfinningen är icke begränsad till de visade utfö- ringsformerna, utan utformning och placering av ingående komponenter kan varieras på många sätt inom ramen för efterföljande patentkrav. Det är underförstått att den andra turbinen mycket väl kan vara ansluten till avloppen frân två eller flera spolluftkompressordrivande turbiner vid samma motor.The invention is not limited to the embodiments shown. without the design and placement of the components components can be varied in many ways within the framework of subsequent claims. It is understood that it the other turbine may well be connected to the drains from two or more purge air compressor driving turbines at the same engine.

Claims (6)

449 640 PATENTKRAV449 640 PATENT CLAIMS l. Anordning vid förbränningsmotor med avgasturbin- driven spolluftkompressor (17, 31) och ytterligare en till avgasturbinens (16, 32) utlopp ansluten andra avgasturbin (18, 33), k ä n n e t e c k n a d därav, att båda avgas- turbinerna (16, 18; 31, 33) är inrättade för radiellt inåt- riktad strömning, samt är monterade på samma sida av motorn som den till spolluftkompressorn anslutna luftlâdan (13) på sådant sätt att rotoraxlarna blir horisontellt orienterade, varvid den första turbinen (16, 32) driver spolluftkompres- sorn (17, 31) medan den andra turbinen (18, 33) mekaniskt tar del i motorns arbete.1. An internal combustion engine device with an exhaust turbine-driven purge air compressor (17, 31) and another second exhaust turbine (18, 33) connected to the exhaust of the exhaust turbine (16, 32), characterized in that both exhaust turbines (16, 18; 31, 33) are arranged for radially inward flow, and are mounted on the same side of the engine as the air box (13) connected to the purge air compressor in such a way that the rotor shafts are horizontally oriented, the first turbine (16, 32) driving purge air compressor sorn (17, 31) while the other turbine (18, 33) mechanically takes part in the operation of the engine. 2. Anordning enligt patentkravet 1, k ä n n e - t e c k n a d därav, att den andra gasturbinen (18, 33) är anordnad på annan nivå än uppladdningsaggregatets axel, varvid överledande av gas från den ena turbinen till den andra sker via en dubbelsnäcka (21).Device according to claim 1, characterized in that the second gas turbine (18, 33) is arranged at a different level than the axis of the charging unit, wherein gas is transferred from one turbine to the other via a double screw (21) . 3. Anordning enligt patentkravet 1, k ä n n e - t e c k n a d därav, att en tredje gasturbin (34) är in- kopplad mellan den första och den andra avgasturbinen I (32, 33) och inrättad för väsentligen radiellt utåtriktad strömming, samt belägen i samma vertikala plan som den andra turbinen (33) och inrättad att ta emot gasströmmen direkt frân den första turbinrotorns (32) utlopp.Device according to claim 1, characterized in that a third gas turbine (34) is connected between the first and the second exhaust turbine I (32, 33) and arranged for substantially radially outward flow, and located in the same vertical planes as the second turbine (33) and arranged to receive the gas flow directly from the outlet of the first turbine rotor (32). 4. Anordning enligt patentkravet 3, k ä n n e - t e c k n a d därav, att den andra och den tredje turbi- nens (33, 34) axlar är sammankopplade via en växel (36).Device according to Claim 3, characterized in that the shafts of the second and third turbines (33, 34) are connected via a gear unit (36). 5. Anordning enligt patentkravet 4, k ä n n e - t e c k n a d av en hjälpaxel (38) inrättad att överföra drivkraft från växeln (36) till uppladdningsaggregatet (31, 32). 'Device according to claim 4, characterized by an auxiliary shaft (38) arranged to transmit driving force from the gear unit (36) to the charging assembly (31, 32). ' 6. Anordning enligt något av föregående patentkrav, k ä n n e t e c k n a d av medel (22, 39) för tillförsel av bränsle till avgasledningen (13) mellan motorns gasut- lopp och uppladdningsaggregatets gasturbin (16, 32), och/ eller mellan denna och den andra avgasturbinen (18, 33). if)Device according to one of the preceding claims, characterized by means (22, 39) for supplying fuel to the exhaust line (13) between the engine's gas outlet and the gas turbine (16, 32) of the charging unit, and / or between this and the other the exhaust turbine (18, 33). if)
SE8205858A 1980-09-29 1982-10-15 Charger for IC engine SE449640B (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US06/292,947 US4474007A (en) 1980-09-29 1981-08-14 Turbocharging device for an internal combustion engine
DE19813133952 DE3133952A1 (en) 1980-09-29 1981-08-27 TURBO CHARGER FOR AN INTERNAL COMBUSTION ENGINE
FR8117669A FR2491129B1 (en) 1980-09-29 1981-09-18 TURBOCHARGER DEVICE FOR INTERNAL COMBUSTION ENGINE
SE8205858A SE449640B (en) 1982-10-15 1982-10-15 Charger for IC engine
US06/636,593 US4616482A (en) 1980-09-29 1984-08-01 Turbocharging device for an internal combustion engine
FR8413123A FR2549534A1 (en) 1980-09-29 1984-08-23 TURBOCHARGER DEVICE FOR INTERNAL COMBUSTION ENGINE
US06/854,616 US4674284A (en) 1980-09-29 1986-04-22 Turbocharging device for an internal combustion engine

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SE8205858A SE449640B (en) 1982-10-15 1982-10-15 Charger for IC engine

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SE8205858L SE8205858L (en) 1982-10-15
SE8205858D0 SE8205858D0 (en) 1982-10-15
SE449640B true SE449640B (en) 1987-05-11

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SE8205858L (en) 1982-10-15
SE8205858D0 (en) 1982-10-15

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