SE437283B - A MEDIUM COMPRESSOR LOADED DIESEL ENGINE - Google Patents

A MEDIUM COMPRESSOR LOADED DIESEL ENGINE

Info

Publication number
SE437283B
SE437283B SE7806975A SE7806975A SE437283B SE 437283 B SE437283 B SE 437283B SE 7806975 A SE7806975 A SE 7806975A SE 7806975 A SE7806975 A SE 7806975A SE 437283 B SE437283 B SE 437283B
Authority
SE
Sweden
Prior art keywords
heat exchanger
engine
air
circuit
diesel engine
Prior art date
Application number
SE7806975A
Other languages
Swedish (sv)
Other versions
SE7806975L (en
Inventor
J Ribeton
Original Assignee
Alsacienne Constr Meca
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
Application filed by Alsacienne Constr Meca filed Critical Alsacienne Constr Meca
Publication of SE7806975L publication Critical patent/SE7806975L/en
Publication of SE437283B publication Critical patent/SE437283B/en

Links

Classifications

    • 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
    • F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
    • F02B29/04—Cooling of air intake supply
    • F02B29/0406—Layout of the intake air cooling or coolant circuit
    • F02B29/0418—Layout of the intake air cooling or coolant circuit the intake air cooler having a bypass or multiple flow paths within the heat exchanger to vary the effective heat transfer surface
    • 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
    • F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
    • F02B29/04—Cooling of air intake supply
    • F02B29/0406—Layout of the intake air cooling or coolant circuit
    • F02B29/0412—Multiple heat exchangers arranged in parallel or 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
    • F02B33/00—Engines characterised by provision of pumps for charging or scavenging
    • F02B33/44—Passages conducting the charge from the pump to the engine inlet, e.g. reservoirs
    • F02B33/443—Heating of charging air, e.g. for facilitating the starting
    • 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
    • F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
    • F02B29/04—Cooling of air intake supply
    • F02B29/0406—Layout of the intake air cooling or coolant circuit
    • F02B29/0437—Liquid cooled heat exchangers
    • 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
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • 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)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Supercharger (AREA)

Description

15- 20 25 30 35 RO vaqeevs 4o 2 tid driftskarakteristika vid låg belastning och delbelastning icke optimala; _ _ Föreliggande uppfinning möjliggör-eliminerande av denna nack- del på ett mycket enkelt och ekonomiskt sätt genom ett srecifikt arrangemang av kylmedlen för överladdningsluften i en med komnressor överladdad dieselmotor med ett lågt volymetriskt förhållande och med ett värmeväxlarsystem bestående av första och andra värmeväxlare i tillförselkretsen för motorluft mellan kompressorn och luftintaget iför motorn. 15- 20 25 30 35 RO vaqeevs 4o 2 time operating characteristics at low load and partial load not optimal; The present invention enables the elimination of this disadvantage in a very simple and economical way by a specific arrangement of the coolants for the supercharging air in a commercial overloaded diesel engine with a low volumetric ratio and with a heat exchanger system consisting of first and second heat exchangers. for engine air between the compressor and the air intake in front of the engine.

I Uppfinningen avser en motor av detta slag, i vilken första och andra värmeväxlare har sina lufttillförselkretsar parallellkopplade, varvid kretsar för flytande kylmedel för första och andra värme- växlarna matas separat med kylmedel av olika temperaturer och var- vid organ förefinnes för att inställa den relativa luftströmmen genom de båda värmeväxlarna. _ ' Om den första värmeväxlaren leder ett varmt fluidum, t ex motorkylvatten av höé temperatur, medan den andra värmeväxlaren leder ett kallare fluidum, t ex sjövatten i händelse av en marin udieselmotor, är det en enkel åtgärd, medelst t ex en.ventil, att inställa luftdistributíonen genom de båda värmeväxlarna och följ- aktligen mata motorn med luft vid en temperatur bäst lämpad_för rådande speciella driftsförhållanden. -I' ' Naturligtvís_kan nämnda organ för att inställa den relativa luftströmmen, speciellt en ventil, regleras automatiskt genom en servomekanism i beroende av någon lämplig driftsparameter för.motorn (t ex temperatur, tryck, belastning, etc~).The invention relates to a motor of this kind, in which first and second heat exchangers have their air supply circuits connected in parallel, wherein liquid coolant circuits for the first and second heat exchangers are fed separately with coolant of different temperatures and wherein means are provided for setting the relative the air flow through the two heat exchangers. If the first heat exchanger conducts a hot fluid, eg motor cooling water of high temperature, while the second heat exchanger conducts a colder fluid, eg seawater in the case of a marine diesel engine, it is a simple operation, by means of e.g. a valve, to set the air distribution through the two heat exchangers and consequently feed the engine with air at a temperature best suited_for the prevailing special operating conditions. Naturally, said means for setting the relative air flow, especially a valve, can be controlled automatically by a servomechanism depending on any suitable operating parameter for the engine (eg temperature, pressure, load, etc.).

Uppfinningen är i det.följande närmare beskriven i ett utförings- exempel med hänvisning till bifogade ritning, vilken visar ett schema illustrerande en överladdad dieselmotor innefattande uppfinningen.The invention is described in more detail below in an exemplary embodiment with reference to the accompanying drawing, which shows a diagram illustrating a supercharged diesel engine embodying the invention.

Såsom framgår av ritningen har en dieselmotor M, vilken har ett lågt volymetriskt förhållande, t ex mindre än 12, en av'turbo- »kompressor bestående överladdningsenhet 2 innefattande åtmintone en turbín Ä matad av avloppsgaser från motorns avgasrör 6, varvid turbinen är ansluten till en kompressor 10 medelst en axel 8.As can be seen from the drawing, a diesel engine M, which has a low volumetric ratio, for example less than 12, has a supercharger unit 2 consisting of a turbocharger, comprising at least one turbine Ä fed by exhaust gases from the engine exhaust pipe 6, the turbine being connected to a compressor 10 by means of a shaft 8.

Enheten 2 består vanligtvis_av två steg, ehuru endast ett är visat fi syfte att förenkla ritningen. _ . ' i I Kompressorn 10 drar in luft från atmosfären vid dess ingång 1? och avger komprimerad luft till motorn via dess tillförselledninm lä, vilken är ansluten till motorns ínsugningsrör lö via ett rör 18.The unit 2 usually consists of two steps, although only one is shown for the purpose of simplifying the drawing. _. 'i I The compressor 10 draws in air from the atmosphere at its inlet 1? and delivers compressed air to the engine via its supply line lä, which is connected to the engine intake pipe lö via a pipe 18.

I Tillförselledningarna lä och 18 är sammankopplade med en mellan- *Jl 10 20 25 30 7806975-4 liggande kylare 20 för luften tillförd motorn. ~ 1 Enheten 20 består av en första och en andra värmeväxlare Bl och R, parallellkopplade i tillförselkretsen för motorluften via gren- ledningar 22, 22' och ZÄ, ?U'.In the supply lines 1a and 18 are interconnected with an intermediate cooler 20 for the air supplied to the engine. The unit 20 consists of a first and a second heat exchanger B1 and R, connected in parallel in the supply circuit for the engine air via branch lines 22, 22 'and ZÄ,? U'.

Den första värmeväxlaren Bl har en krets 26, 26' som leder ett relativt varmt flytande kylmedel. Kretsen 26, ?6' kan t ex leda högtemperaturvattnet från motorns vattenkylkrets (icke visat).The first heat exchanger B1 has a circuit 26, 26 'which conducts a relatively hot liquid coolant. Circuit 26,? 6 'can, for example, direct the high temperature water from the engine water cooling circuit (not shown).

Den andra värmeväxlaren R2 har en krets 28, 28' som leder ett kallare flytande kylmedel än den första värmeväxlaren. Om motorn M är en marin dieselmotor kan den andra värmeväxlarens krets ?8, 28' leda sjövatten. Om motorn ingår i en statisk installation kan kretsen 28, 28' vara ansluten till en strömning av huvudlednings- vatten. , ' i tt avstängningselement, t ex en ventil eller klaff 30, beläpen vid ett ställe i tillförselkretsen för motorluft mellan de tvâ värme- växlarna, t ex i röret PN, möjliggör luftströmmen att fördelas opti- malt mellan de två värmeväxlarna.The second heat exchanger R2 has a circuit 28, 28 'which conducts a colder liquid coolant than the first heat exchanger. If the engine M is a marine diesel engine, the circuit of the other heat exchanger? 8, 28 'can conduct seawater. If the motor is part of a static installation, the circuit 28, 28 'may be connected to a flow of mains water. in a shut-off element, for example a valve or flap 30, located at a place in the supply circuit for engine air between the two heat exchangers, for example in the pipe PN, enables the air flow to be optimally distributed between the two heat exchangers.

I det illustrerade fallet kan därför varm luft väljas för par- tiella eller låga belastningar genom att hålla klaffen 30 stängd eller delvis stängd. För detta fall passerar all (eller en hög procent av) överladdningsluft enbart genom den "varma" värmeväxla- ren RI. 7 ° ,För höga belastningar öppnas klaffen 30 progressivt så att motorn matas med kyld luft, varvid en större del av tillförselluften till motorn då passerar genom "kalla" värmeväxlaren Ra.In the illustrated case, therefore, hot air can be selected for partial or low loads by keeping the flap 30 closed or partially closed. In this case, all (or a high percentage of) supercharging air passes only through the "hot" heat exchanger RI. 7 °. For high loads, the flap 30 is progressively opened so that the engine is supplied with cooled air, whereby a larger part of the supply air to the engine then passes through the "cold" heat exchanger Ra.

Följaktligen möjliggöres genom ett mycket enkelt arrangemang att motorn matas med luft vid den temperatur som är mest lämplig för dess driftstillstånd. Parallellkopplingen av de två värmeväxlar- na reduceras dessutom tryckförluster. Å Klaffen 30 kan regleras automatiskt genom en servomekanism 3? 'i beroende av en av motorns driftsparametrarl speciellt överladd- ningstrycket. _ _ Det kan vara fördelaktigt att förse servomekanismen 3? med tvâ inställningar "sommar" och "vinter" för att ta hänsyn till den om- givande temperaturen, och naturligtvis kan andra klaffar vara anord- nade vid andra ställen i luftkretsen.Consequently, a very simple arrangement enables the engine to be supplied with air at the temperature most suitable for its operating condition. The parallel connection of the two heat exchangers also reduces pressure losses. Å The flap 30 can be regulated automatically by a servo mechanism 3? depending on one of the operating parameters of the engine, especially the supercharging pressure. _ _ It may be advantageous to provide the servo mechanism 3? with two settings "summer" and "winter" to take into account the ambient temperature, and of course other flaps can be arranged at other places in the air circuit.

Claims (1)

1. 7806975-4% s 4 P A T E N T K R A V »En medelst kompressoröverladdaddieselmotor (M) med ett värme- växlarsystem i matarkretsen för motorluft_mellan kompressorn_ (10) och luftintaget (16) för motorn, varvid värmeväxlarsyste- met innefattar första och andra värmeväxlare (R1,R2) som har sina tillförselledningar (22',24';22,24) för motorluften paral- lellkopplade, en kylmedelkrets (26,26') för den första värme- växlaren (R1) är matad med flytande kylmedel av en temperatur högre än flytande kylmedel matat till en kylmedelkrets (28,28') för den andra värmeväxlaren (R2) och organ (30) förefinnes för reglering av den relativa luftströmmen genom de båda värme- växlarna (R1,R2), k ä n n e t e c-k n a d" a v att den» första värmeväxlaren (R1) är en intagslnft/vatten-värmeväxlare, vvarvid vattenkretsen (26¿26') för den första värmeväxlaren (R1) är kopplad till motorns (M) kylvattenkrets, och att nämnda or- rgan (30) för reglering av den relativa luftströmmen genom de båda värmeväxlarna (R1;R2) är beläget i en av tillförselled- ningarna (22r24) mellan värmeväxlarna (R1,R2) utanför ledning- arna (22',24') som leder till och från den första värmeväxla- ren (R1).7806975-4% s 4 CLAIMS »A compressor supercharged diesel engine (M) with a heat exchanger system in the engine air supply circuit_between the compressor_ (10) and the air intake (16) for the engine, the heat exchanger system comprising first and second heat exchanger (R1, R2 exchanger) ) having their supply lines (22 ', 24'; 22,24) for the engine air connected in parallel, a coolant circuit (26,26 ') for the first heat exchanger (R1) is supplied with liquid coolant of a temperature higher than liquid coolant fed to a coolant circuit (28,28 ') for the second heat exchanger (R2) and means (30) are provided for regulating the relative air flow through the two heat exchangers (R1, R2), characterized in that the »first heat exchanger (R1) is an intake / water heat exchanger, the water circuit (26¿26 ') of the first heat exchanger (R1) being connected to the cooling water circuit of the engine (M), and said means (30) for regulating of the relative air flow through the two heat exchangers (R1; R2) ä r located in one of the supply lines (22r24) between the heat exchangers (R1, R2) outside the lines (22 ', 24') leading to and from the first heat exchanger (R1).
SE7806975A 1977-07-12 1978-06-16 A MEDIUM COMPRESSOR LOADED DIESEL ENGINE SE437283B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7721434A FR2397523A1 (en) 1977-07-12 1977-07-12 SUPERCHARGED DIESEL ENGINE

Publications (2)

Publication Number Publication Date
SE7806975L SE7806975L (en) 1979-01-13
SE437283B true SE437283B (en) 1985-02-18

Family

ID=9193271

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7806975A SE437283B (en) 1977-07-12 1978-06-16 A MEDIUM COMPRESSOR LOADED DIESEL ENGINE

Country Status (8)

Country Link
JP (1) JPS5420215A (en)
CH (1) CH623889A5 (en)
DE (1) DE2826373A1 (en)
FR (1) FR2397523A1 (en)
GB (1) GB2001128B (en)
IT (1) IT1096693B (en)
NL (1) NL7806099A (en)
SE (1) SE437283B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5947064A (en) * 1995-10-10 1999-09-07 Man B&W Diesel A/S Multi-engine plant with a common freshwater cooling system

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FR2461101A1 (en) * 1979-08-06 1981-01-30 Alsacienne Constr Meca DEVICE FOR CONTROLLING THE AIR OF DIESEL ENGINE POWER SUPPLY
FR2495689A1 (en) * 1980-12-08 1982-06-11 Hyperbar Develop Suralimentati Coolant circuit for diesel engine - has heat exchanger in air intake for recuperator air and fuel circuit
DE3200683A1 (en) * 1982-01-13 1983-07-21 Klöckner-Humboldt-Deutz AG, 5000 Köln Supercharged internal combustion engine
WO1983002481A1 (en) * 1982-01-13 1983-07-21 Tholen, Paul Internal combustion supercharged motor with heat exchanger of the combustion air
DE3824133A1 (en) * 1988-07-15 1990-01-18 Schatz Oskar Method for the operation of an internal combustion engine
DE4222086A1 (en) * 1992-07-04 1994-01-05 Kloeckner Humboldt Deutz Ag IC engine with combustion air cooler - has reduced nitrous oxide emission at full load or high power at lower combustion air temp.
DE4242010A1 (en) * 1992-12-12 1994-06-16 Man Nutzfahrzeuge Ag Process for regulating the charge air temperature, and device for carrying it out
WO1998025012A1 (en) * 1996-12-02 1998-06-11 Caterpillar Inc. Air to air aftercooler heated bypass with load sensing switching valve
DE10049314A1 (en) * 2000-10-05 2002-04-11 Audi Ag Charging air cooling for multi-cylinder internal combustion engine with turbocharger, has two separate charging air coolers for cooling air in alternative sub-branches that are recombined
FR2829533B1 (en) * 2001-09-07 2004-04-23 Peugeot Citroen Automobiles Sa IMPROVED DEVICE FOR THERMAL REGULATION OF THE INTAKE AIR OF AN INTERNAL COMBUSTION ENGINE OF A MOTOR VEHICLE
DE102006028700A1 (en) * 2006-06-22 2007-12-27 J. Eberspächer GmbH & Co. KG Drive system for vehicle, has air intercooler arrangement provided between turbocharger arrangement and engine in combustion air flow path, and heat source supplied to engine for providing transmission of heat to combustion air
FR3032009B1 (en) * 2015-01-27 2017-01-27 Valeo Systemes Thermiques AIR INTAKE SYSTEM AND METHOD FOR THERMAL MANAGEMENT OF INTAKE AIR.
CN108691693B (en) * 2018-06-13 2021-07-20 哈尔滨工程大学 Natural gas engine fuel supply system with return pipe and control method
CN110735708A (en) * 2019-12-05 2020-01-31 潍柴动力股份有限公司 Finished automobile intercooler and control method thereof

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GB514345A (en) * 1937-12-22 1939-11-06 Stein & Atkinson Ltd Improvements relating to tubular heat exchange apparatus suitable for heating air
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DE1903261C3 (en) * 1968-02-07 1975-08-28 S.A. De Vehicules Industriels Et D'equipements Mecaniques Saviem, Suresnes, Hauts De Seine (Frankreich) Self-igniting internal combustion engine with charging by an exhaust gas turbocharger and a downstream compressor
CH468609A (en) * 1968-06-06 1969-02-15 Von Roll Ag Tubular heat exchangers for indirect cooling of flue gases, especially from waste incineration ovens
US3712282A (en) * 1971-01-22 1973-01-23 Teledyne Ind Temperature control system for supercharged internal combustion engine
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DE2537863C2 (en) * 1975-08-26 1977-09-15 Klockner-Humboldt-Deutz AG, 5000 Köln Method for operating internal combustion engines that create workspace
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5947064A (en) * 1995-10-10 1999-09-07 Man B&W Diesel A/S Multi-engine plant with a common freshwater cooling system

Also Published As

Publication number Publication date
SE7806975L (en) 1979-01-13
FR2397523A1 (en) 1979-02-09
GB2001128A (en) 1979-01-24
FR2397523B1 (en) 1981-11-27
IT1096693B (en) 1985-08-26
GB2001128B (en) 1982-02-03
CH623889A5 (en) 1981-06-30
DE2826373A1 (en) 1979-01-25
IT7825574A0 (en) 1978-07-11
JPS5420215A (en) 1979-02-15
NL7806099A (en) 1979-01-16

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