HU182235B - Internal combustion engine of direct air injection - Google Patents
Internal combustion engine of direct air injection Download PDFInfo
- Publication number
- HU182235B HU182235B HU802729A HU272980A HU182235B HU 182235 B HU182235 B HU 182235B HU 802729 A HU802729 A HU 802729A HU 272980 A HU272980 A HU 272980A HU 182235 B HU182235 B HU 182235B
- Authority
- HU
- Hungary
- Prior art keywords
- fuel
- combustion chamber
- nozzle
- combustion
- air
- Prior art date
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
- F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
- F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
- F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
- F02B23/0675—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston the combustion space being substantially spherical, hemispherical, ellipsoid or parabolic
-
- 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
- F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
- F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
-
- 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
- F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
- F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
- F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
- F02B23/0636—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston the combustion space having a substantially flat and horizontal bottom
- F02B23/0639—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston the combustion space having a substantially flat and horizontal bottom the combustion space having substantially the shape of a cylinder
-
- 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
- F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
- F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
- F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
- F02B23/0645—Details related to the fuel injector or the fuel spray
-
- 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
- F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
- F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
- F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
- F02B23/0696—W-piston bowl, i.e. the combustion space having a central projection pointing towards the cylinder head and the surrounding wall being inclined towards the cylinder wall
-
- 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
- F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
- F02B2275/14—Direct injection into combustion chamber
-
- 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
- F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
- F02B2275/40—Squish effect
-
- 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
- F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
- F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
- F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
- F02B23/0618—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston having in-cylinder means to influence the charge motion
- F02B23/0621—Squish flow
-
- 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)
- Fuel-Injection Apparatus (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
Abstract
Description
(54) Légsűrítéses közvetlen befecskendezésű belsőégésű motor(54) Compressed air direct injection internal combustion engine
A találmány tárgya légsűrítéses, közvetlen befecskendezésű, belsőégésű motor, amelynek dugattyúfenékben vagy hengerfejben elrendezett, forgástest alakú égéstere és ehhez képest központosán, vagy közelítőleg központosán a hengerfejben elrendezett tüzelőanyag-befecskendező fúvókája van.BACKGROUND OF THE INVENTION The present invention relates to an air-compressed, direct injection, internal combustion engine having a piston or cylinder head with a rotary body combustion chamber and a fuel injector nozzle located centrally or approximately centrally to the cylinder head.
Ilyen belsőégésű motorok már évek óta a legkülönbözőbb variációkban ismeretesek. Annak érdekében, hogy a hengerekben, illetve égésterekben összesűrített égési levegőt a lehető legjobban kihasználják, ezeknél a tüzelőanyag-befecskendező fúvókák több, főleg három és nyolc közötti számú fúvókafurattal rendelkeznek. Ezeken a fúvókafuratokon át a tüzelőanyagot igen egyenletesen osztják el az égéstérben, és ezáltal az égési levegőben is. A fúvókafuratok száma azonban mind gyártástechnikai okokból, mind pedig a kokszolódás szempontjából korlátozott, amely utóbbi annál erősebben lép fel, minél kisebb a keresztmetszet.Such internal combustion engines have been known for many years in a variety of variants. In order to make the best use of the compressed combustion air in the cylinders or combustion chambers, these fuel injection nozzles have a plurality of nozzle holes, in particular three to eight. Through these nozzle holes the fuel is distributed evenly throughout the combustion chamber and thus in the combustion air. However, the number of nozzle holes is limited, both for engineering reasons and for coking, which is more pronounced the smaller the cross-section.
A keverékképzés további javítása érdekében az égési levegőt többszörösen forgómozgásba hozzák, amely rendszerint a szívócsatorna örvénycsatornaként történő kialakításával, vagy ernyőszelep segítségével történik. Ezáltal minden esetre megnő a gázcsere-munka és a beszívott friss levegő mennyisége csökken. Ehhez járul, hogy az égési gázok nagyobb sebessége hatékonyabb hő- 25 átadást biztosít az égési gázok és az égésteret határoló szerkezeti részek között, ami nagyobb hőveszteségekhez és nagyobb termikus terheléshez vezet.In order to further improve blend formation, the combustion air is repeatedly introduced into a rotary motion, which is usually accomplished by designing the intake manifold as a vortex or by means of a shuttle valve. This increases gas exchange work and reduces the amount of fresh air intake. In addition, the higher velocity of the combustion gases provides a more efficient heat transfer between the combustion gases and the structural members that surround the combustion chamber, leading to greater heat loss and greater thermal load.
Végül az ismert furatos fúvókáknak az is a hiányossága, hogy a nyitási és a zárási szakasz közben a tömítő- 30 ülékben részben igen nagy fojtási veszteségek keletkeznek, ami a kilépőnyílások előtti tüzelőanyagban erős nyomáseséshez vezet és következésképpen a tüzelőanyagsugár előkészítése jelentősen leromlik. Ennek pe5 dig az a következménye, hogy rosszabb a hidegindítás és lényegesen nagyobb a tökéletlenül elégett termékek kibocsátása.Finally, the known bore nozzles also have the disadvantage that, during the opening and closing stages, the sealing seat 30 produces, in part, very high throttling losses, leading to a strong pressure drop in the fuel before the outlets and consequently significantly reducing fuel preparation. The consequence of this is that the cold start is worse and the output of incompletely burned products is significantly higher.
A találmánnyal célunk a fenti hiányosságok kiküszöbölése.It is an object of the present invention to overcome the above shortcomings.
A (alálmánnyal megoldandó feladat ennek megfelelően a bevezetőben leírt típusú belsőégésű motort úgy továbbfejleszteni, hogy a tüzelőanyag olyan egyenletesen legyen az égési levegőbe fecskendezve, hogy csupán az égési levegő összenyomó-áramlása révén közel töké15 letesen egyenletes keveredést érjünk el, úgyhogy a légörvényt minimálisra csökkentsük, vagy teljesen el is hagyhassuk.Accordingly, the object of the present invention is to further develop an internal combustion engine of the type described in the introduction so that the fuel is injected into the combustion air so uniformly that only a perfectly uniform mixing of the combustion air is achieved so that the air vortex is minimized. or we can leave it completely.
A kitűzött feladatot a találmány szerint azáltal oldottuk meg, hogy a tüzelőanyag-befecskendező fúvókának 20 az égéstér felé nyitódó, kúpos tömítőfelülettel ellátott fúvókatűje van, továbbá a fúvókatű tömítőüléke egyúttal a kilépőnyílást is képezi, ennek mindenkori szabad keresztmetszete a tüzelőanyag-kilépőkeresztmetszetnek megfelelően van megválasztva, továbbá a tüzelőanyag az égéstérbe kúppalást alakjában van befecskendezve és a tüzelőanyag az égéstérben levő levegőt két, közel azonos térfogatra osztja.The object of the present invention has been solved by providing the fuel injector nozzle 20 with a conical sealing surface opening towards the combustion chamber, the nozzle sealing device also having an outlet, furthermore, the fuel is injected into the combustion chamber in the form of a taper and the fuel divides the air in the combustion chamber into two approximately equal volumes.
Ezzel az elrendezéssel mindenekelőtt a befecskendezőfúvóka nyitási és zárási szakaszában fellépő fojtási veszteségeket küszöböljük ki a kilépőkeresztmetszet előtt, 182235 alakjában van befecskendezve, ahol az égéstéralakok és -helyzetek egyenértékűek. Lényeges szempont viszont, hogy a 6 kúppalást feletti 12 levegőtérfogat közelítőleg azonos a 6 kúppalást alatti 13 levegőtérfogattal. A szag5 gatott 14 vonal csupán azt jelenti, hogy a 6 kúppalást a 11 égéstérben körben közelítőleg síkban végződik, ahol a tüzelőanyagnak nem kell az égéstérfalra jutnia. A tüzelőanyag-befecskendező 10 fúvóka hossztengelyét x, a 11 égéstér hossztengelyét pedig y hivatkozási jellel 10 jelöltük.This arrangement eliminates, in particular, the loss of throttling in the opening and closing stages of the injection nozzle before the exit cross-section, in the form of 1 82235, where the combustion chamber shapes and positions are equivalent. It is important, however, that the volume of air 12 above the cone 6 is approximately equal to the volume 13 below the cone 6. The dotted line 14 merely means that the taper 6 in the combustion chamber 11 ends in a substantially planar circumference where the fuel does not have to reach the combustion chamber wall. The longitudinal axis of the fuel injector nozzle 10 is denoted by x and the longitudinal axis of the combustion chamber 11 by y.
Claims (3)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19792949596 DE2949596A1 (en) | 1979-12-10 | 1979-12-10 | AIR-COMPRESSING, DIRECT-INJECTING INTERNAL COMBUSTION ENGINE |
Publications (1)
Publication Number | Publication Date |
---|---|
HU182235B true HU182235B (en) | 1983-12-28 |
Family
ID=6088029
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HU802729A HU182235B (en) | 1979-12-10 | 1980-11-14 | Internal combustion engine of direct air injection |
Country Status (8)
Country | Link |
---|---|
JP (1) | JPS56115816A (en) |
DE (1) | DE2949596A1 (en) |
FR (1) | FR2471491A1 (en) |
GB (1) | GB2066896B (en) |
HU (1) | HU182235B (en) |
IT (1) | IT1149868B (en) |
SE (1) | SE8008692L (en) |
TR (1) | TR21036A (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5910734A (en) * | 1982-07-09 | 1984-01-20 | Toyota Central Res & Dev Lab Inc | Compression-ignition type direct-injecting internal-combustion engine |
AT389566B (en) * | 1983-08-03 | 1989-12-27 | Avl Verbrennungskraft Messtech | Diesel engine of relatively low power |
JPS63134813A (en) * | 1986-11-25 | 1988-06-07 | Isuzu Motors Ltd | Combustion chamber of internal combustion engine |
EP0295520B1 (en) * | 1987-06-08 | 1992-08-26 | Toyota Jidosha Kabushiki Kaisha | Combustion chamber in a direct injection type diesel engine |
DE4017391C2 (en) * | 1990-05-30 | 1993-10-07 | Man Nutzfahrzeuge Ag | Injection cross-section-controlled injection nozzle for air-distributed fuel injection in an air-compressing internal combustion engine |
DE4413556A1 (en) * | 1994-04-19 | 1995-11-02 | Man Nutzfahrzeuge Ag | Combustion chamber shape for an air-compressing, direct-injection and self-igniting internal combustion engine with exhaust gas turbocharger |
WO2004059144A1 (en) * | 2002-12-26 | 2004-07-15 | Akulinin, Alexander | The working chamber of piston machine (variants) |
EP2986836A4 (en) * | 2013-04-16 | 2016-12-14 | Delphi Tech Inc | Piston and bowl for gasoline direct injection compression ignition (gdci) |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE388143C (en) * | 1922-05-27 | 1924-01-10 | Knut Jonas Elias Hesselman | Internal combustion engine with central fuel injection |
GB400539A (en) * | 1932-05-21 | 1933-10-26 | Bosch Robert | Improvements in or relating to fuel injection nozzles for internal combustion engines |
AT159850B (en) * | 1938-03-11 | 1940-11-25 | Saurer Ag Adolph | Method for operating a high-speed internal combustion engine. |
US2614549A (en) * | 1950-09-27 | 1952-10-21 | American Locomotive Co | Cylinder head |
AT199421B (en) * | 1957-07-12 | 1958-09-10 | Max Grassmueck | Screwable fishing reel holder |
DE1108001B (en) * | 1959-09-17 | 1961-05-31 | Daimler Benz Ag | Air-compressing internal combustion engine with fuel injection and self-ignition |
US3954089A (en) * | 1971-07-16 | 1976-05-04 | Deere & Company | Diesel engine |
GB1540457A (en) * | 1976-09-23 | 1979-02-14 | Lister & Co Ltd R | Piston for an internal combustion engine |
FR2406722A1 (en) * | 1977-10-18 | 1979-05-18 | Berliet Automobiles | DIRECT INJECTION DIESEL ENGINE WITH MECHANICALLY CONTROLLED INJECTOR |
-
1979
- 1979-12-10 DE DE19792949596 patent/DE2949596A1/en not_active Withdrawn
-
1980
- 1980-11-14 HU HU802729A patent/HU182235B/en unknown
- 1980-11-14 FR FR8024198A patent/FR2471491A1/en active Pending
- 1980-12-09 IT IT26512/80A patent/IT1149868B/en active
- 1980-12-09 GB GB8039453A patent/GB2066896B/en not_active Expired
- 1980-12-09 JP JP17372980A patent/JPS56115816A/en active Pending
- 1980-12-10 SE SE8008692A patent/SE8008692L/en not_active Application Discontinuation
- 1980-12-10 TR TR21036A patent/TR21036A/en unknown
Also Published As
Publication number | Publication date |
---|---|
IT8026512A0 (en) | 1980-12-09 |
GB2066896A (en) | 1981-07-15 |
FR2471491A1 (en) | 1981-06-19 |
GB2066896B (en) | 1983-04-20 |
IT1149868B (en) | 1986-12-10 |
SE8008692L (en) | 1981-06-11 |
DE2949596A1 (en) | 1981-06-11 |
TR21036A (en) | 1983-05-27 |
JPS56115816A (en) | 1981-09-11 |
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