DK169825B1 - Internal combustion engine - Google Patents

Internal combustion engine Download PDF

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Publication number
DK169825B1
DK169825B1 DK147792A DK147792A DK169825B1 DK 169825 B1 DK169825 B1 DK 169825B1 DK 147792 A DK147792 A DK 147792A DK 147792 A DK147792 A DK 147792A DK 169825 B1 DK169825 B1 DK 169825B1
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DK
Denmark
Prior art keywords
combustion engine
plane
engine
internal combustion
cylinder
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DK147792A
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Danish (da)
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DK147792A (en
DK147792D0 (en
Inventor
Joergen Meier
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Man B & W Diesel Gmbh
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Application filed by Man B & W Diesel Gmbh filed Critical Man B & W Diesel Gmbh
Priority to DK147792A priority Critical patent/DK169825B1/en
Publication of DK147792D0 publication Critical patent/DK147792D0/en
Publication of DK147792A publication Critical patent/DK147792A/en
Priority to KR1019950700106A priority patent/KR100245083B1/en
Priority to PCT/DK1993/000379 priority patent/WO1994013948A1/en
Priority to JP6513676A priority patent/JP2977902B2/en
Application granted granted Critical
Publication of DK169825B1 publication Critical patent/DK169825B1/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02FCYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00Casings, e.g. crankcases or frames
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01BMACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B1/00Reciprocating-piston machines or engines characterised by number or relative disposition of cylinders or by being built-up from separate cylinder-crankcase elements
    • F01B1/12Separate cylinder-crankcase elements coupled together to form a unit
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00Other engines
    • F02B75/16Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18Multi-cylinder engines
    • F02B75/22Multi-cylinder engines with cylinders in V, fan, or star arrangement
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00Engines characterised by air compression and subsequent fuel addition
    • F02B3/06Engines characterised by air compression and subsequent fuel addition with compression ignition

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Description

i DK 169825 B1in DK 169825 B1

Opfindelsen angår en forbrændingsmotor med cylindre arrangeret i V-facon i to rækker, hvor motorens faste hovedstruktur er opdelt i en separat bundramme, hvorpå et motorstativ er monteret, og fortrinsvis yder-5 ligere opdelt i et separat cylinderparti monteret på stativet, og hvor de separate hovedstrukturelementer er spændt sammen ved hjælp af stagbolte, der strækker sig fra cylinderpartiet til bundrammen, og hvoraf mindst to forløber skråt i forhold til motorens centerplan.The invention relates to an internal combustion engine with cylinders arranged in V-shape in two rows, wherein the fixed main structure of the engine is divided into a separate bottom frame, on which an engine rack is mounted, and preferably further divided into a separate cylinder part mounted on the rack, where the separate main structural members are clamped together by stud bolts extending from the cylinder portion to the bottom frame, at least two of which extend obliquely to the center plane of the engine.

10 V-motorer har fundet størst udbredelse indenfor firetakts trunkmotorer. De har alle en fast hovedstruktur, som er udført i ét stykke, dvs. som en monoblok, der nedadtil er udformet med en forholdsvis dyb reces, hvori krumtapakslen er monteret underhængende (under-15 siung) og er gjort fast til hovedstrukturen ved hjælp af løse hovedlej eunderdele, som spændes fast i hovedstrukturen ved hjælp af kraftige, lodrette bolte. Disse bolte er parallelle og kan strække sig op til oversiden af den faste struktur. Navnlig ved større V-motorer er 20 det en ulempe, at krumtapakslen er anbragt underhængende, fordi akslen så ikke med en kran kan sænkes direkte på plads i motoren.10 V motors have found the most widespread use in four-stroke trunk motors. They all have a fixed main structure, which is made in one piece, ie. as a downwardly shaped monoblock with a relatively deep recess in which the crankshaft is mounted pendant (under-15 sung) and fixed to the main structure by means of loose main bearing components which are secured to the main structure by means of strong vertical bolts . These bolts are parallel and can extend up to the top of the fixed structure. Especially with larger V-motors, it is a disadvantage that the crankshaft is placed under suspension because the shaft can then not be lowered directly in place with a crane in the engine.

Fra US-A- 3 318 297 kendes en motor af den indledningsvis nævnte art. Motoren er af trunktypen og er 25 såpas lille, at krumtapakslen kan løftes uden anvendelse af en kran. Stagboltene på indersiden af cylindrene krydser hen over krumtapakslen og er fastgjort i bund-rammen ved ydersiden af nabocylinderen. For at muliggøre udtagning af krumtapakslen uden opspænding af stag-30 boltene er den nedre ende af de inderste stagbolte forsat så langt opover, at der over krumtapakslen er et frirum af en sådan størrelse, at krumtapakslen kan løftes fri af hovedlejerne og forskydes længdevis ud gennem en åbning i motorstativets endevæg.From US-A-3 318 297 a motor of the kind mentioned above is known. The motor is of the trunk type and is 25 small enough that the crankshaft can be lifted without the use of a crane. The stud bolts on the inside of the cylinders cross over the crankshaft and are fixed in the bottom frame at the outside of the neighboring cylinder. In order to enable the crankshaft to be removed without clamping the stag-bolts, the lower end of the inner stag bolts is positioned so far up that there is a clearance above the crankshaft that the crankshaft can be lifted free of the main bearings and extended longitudinally through an opening in the end wall of the engine rack.

35 Opfindelsen har til formål at anvise en stor V-motor af krydshovedtypen.The invention has for its object to provide a large V-head of the crosshead type.

DK 169825 B1 2DK 169825 B1 2

Med henblik herpå er forbrændingsmotoren ifølge opfindelsen ejendommelig ved, at motoren er en totakts krydshovedmotor med på tværgående afstivning i stativet monterede styreplaner, der over en væsentlig del af 5 stativets højde strækker sig skråt i forhold til motorens centerplan, og at de i bundrammen fastgjorte stagbolte passerer på langs af og uden for det i tværretningen yderste styreplan for den tilhørende cylinder.To this end, the internal combustion engine according to the invention is characterized in that the engine is a two-stroke cross-head motor with transverse stiffeners mounted in the frame which extend over a substantial part of the height of the frame to the center plane of the motor and that the stag bolts fixed in the bottom frame passes longitudinally of and beyond the outermost control plane of the associated cylinder.

Por en krydshovedmotor er det vitalt at opnå me-10 get driftssikker styring af krydshovederne. Monteringen af styreplanerne på stativets tværgående afstivning muliggør stor kraftoverførsel fra styreplanerne til stativet uden at dette deformeres i en grad som indvirker uheldigt på styreplanernes planhed. Pra store totakts 15 krydshovedmotorer af rækketypen er det i og for sig kendt, at der kan opnås sikker fiksering og afstivning af styreplanerne til den tværgående afstivning, men de kendte styreplaner er lodretstående, og stativet er på begge sider af hver cylinders længdeakse støttet af 20 stagbolte, som ligger umiddelbart uden for styreplanerne.With a crosshead motor, it is vital to achieve very reliable control of the crossheads. The mounting of the control planes on the transverse support of the rack enables large power transfer from the control planes to the rack without deforming it to a degree which adversely affects the flatness of the control planes. In the case of a wide range of 15-stroke cross-head motors of the row type, it is known per se that secure fixing and stiffening of the control planes for the transverse stiffening can be achieved, but the known control planes are vertical and the stand is supported on both sides by the longitudinal axis of each cylinder. stag bolts, which are immediately outside the control planes.

Med opfindelsen er det overraskende indset, at stagbolten på indersiden af hver cylinder helt kan undværes, og at de til den tværgående afstivning fast-25 gjorte styreplaner kan anbringes med skråt forløb i forhold til motorens centerplan. ved at udelade stagboltene på indersiden af cylindrene bliver der plads til, at styreplanerne kan fastgøres og afstives til tværvæggene. Da de yderste styreplaner påvirkes af væ-30 sentlig større kræfter fra krydshovedet end de inderste styreplaner fører fraværet af de inderste stagbolte ikke til utilladelige deformationer af stativet. Hvis det af hensyn til cylinderpartiets fiksering er nødvendigt, kan cylinderpartiet på cylinderens inderside spændes 35 ned mod stativet ved hjælp af kortere bolte, som er forankret i stativet og ikke i bundrammen.With the invention, it is surprisingly realized that the stud bolt on the inside of each cylinder can be completely eliminated and that the guide planes fixed for the transverse stiffening can be arranged at an oblique angle to the center plane of the engine. by omitting the stud bolts on the inside of the cylinders there is room for the guide planes to be secured and stiffened to the transverse walls. Since the outer guide planes are influenced by substantially greater forces from the crosshead than the inner guide planes, the absence of the inner stud bolts does not lead to unacceptable deformations of the rack. If it is necessary for the fixing of the cylinder part, the cylinder part on the inside of the cylinder can be tensioned down towards the stand by means of shorter bolts which are anchored in the stand and not in the bottom frame.

DK 169825 B1 3 I motoren ifølge opfindelsen skærer cylindrenes akser det vandrette plan under en vinkel, som er afvigende fra 90°. Dette medfører, at de dominerende cylinderkræfter kan have vandrette komposanter af væsent-5 lig størrelse. De skråtstillede stagbolte tillader overførelse af cylinderkræfternes vandrette komposanter til bundrammen, så de enkelte elementer i motorens faste hovedstruktur ikke skrider i forhold til hinanden langs samlefladerne. De på styreplanernes yderside be-10 liggende gennemgående stagbolte gør det muligt at udnytte den samme boltekraft til samling af elementer, som er delt ved flere samleflader, hvorved det totale antal bolte holdes mindst muligt, i forhold til de kendte V-motorer bliver sammenspændingsboltene usædvan-15 ligt slanke, dvs. forholdet mellem boltenes længde og tykkelse bliver meget stort. Da boltekraften skal være stort set ens uanset boltelængden, er boltenes forlængelse ved tilspændingen proportional med boltelængden, og de meget slanke bolte strækkes derfor meget ved til-20 spændingen, hvilket gør forspændingskraftén stort set uafhængig af sætninger i gevind og anlæg for møtrikker samt for eventuelt slid mellem parterne og vibrationer i de sammenspændte elementer. Denne egenskab ved stagboltene er særlig vigtig ved de V-motorer, hvor cylin-25 drenes akse ikke står vinkelret på de underliggende samleflader mellem hovedstrukturelementerne.In the engine according to the invention, the axes of the cylinders intersect the horizontal plane at an angle deviating from 90 °. As a result, the dominant cylinder forces may be of substantial size horizontal components. The inclined stud bolts allow the transfer of the horizontal components of the cylinder forces to the bottom frame so that the individual elements of the engine's fixed main structure do not move relative to one another along the connecting surfaces. The through-going stud bolts located on the outside of the control planes make it possible to utilize the same bolt force for assembly of elements divided by several connecting faces, thereby keeping the total number of bolts as small as possible, relative to the known V-motors, the clamping bolts are exceptional -15 is slim, ie the relation between the length and thickness of the bolts becomes very large. Since the bolt force must be substantially the same regardless of the bolt length, the bolt extension at the tightening is proportional to the bolt length and therefore the very slender bolts are extensively stretched at the to-20 tension, which makes the biasing force largely independent of the threads and nuts for nuts and, if applicable, wear and tear between the parties and vibrations in the clamped elements. This property of the stud bolts is particularly important in those V-motors where the axis of the cylinders is not perpendicular to the underlying interfaces between the main structural elements.

Stagboltenes beliggenhed på ydersiden af styreplanerne giver plads til, at stagboltene kan passere ned forbi krumtapakslen for fastgørelse ved bunden af 30 bundrammen.The position of the stud bolts on the outside of the guide planes allows for the stud bolts to pass down past the crankshaft for attachment to the bottom of the 30 frame.

Med henblik på at mindske de tværgående belastninger i motorens hovedstruktur, forløber stagboltene hensigtsmæssigt i det væsentlige parallelt med styreplanerne.Conveniently, in order to reduce the transverse loads in the main structure of the engine, the stud bolts extend substantially parallel to the control planes.

35 I en særlig enkel udformning er cylinderpartiet for to nabocylindre i hver sin række udført i ét styk- DK 169825 B1 4 ke, og alle stagboltene ligger, set i motorens tværretning, uden for det i tværretningen yderste styreplan for den tilhørende cylinder. Det sammenhængende cylinderparti gør det muligt at undvære bolte i området mel-5 lem de to nabocylindre, så der kun skal anvendes minimalt to stagbolte pr. cylinderpar. For at hindre de dominerende cylinderkræfter i at forskubbe de separate hovedstrukturelementer i forhold til hinanden under motorens gang, kan stagboltene spændes så hårdt, at den 10 stationære friktionskraft i samlingens plan overstiger de dominerende cylinderkræfters komposanter i samme plan med en forsvarlig sikkerhedsmargin.35 In a particularly simple embodiment, the cylinder portion of two neighboring cylinders in each row is made in one piece, and all of the stud bolts are, viewed in the transverse direction of the engine, outside the outermost guide plane of the associated cylinder. The contiguous cylinder portion makes it possible to avoid bolts in the area between the two neighboring cylinders, so that only a minimum of two stud bolts per head are used. of cylinders. In order to prevent the dominant cylinder forces from displacing the separate main structural elements relative to each other during engine operation, the stud bolts can be tightened so that the stationary frictional force in the joint plane exceeds the components of the dominant cylinder forces in the same plane by a reasonable margin of safety.

For at lette fremstillingen af de enkelte motorelementer er det ønskeligt, at skillefladen mellem de 15 separate hovedstrukturelementer forløber i det væsentlige vinkelret på motorens centerplan, idet der derved fremkommer store vandrette samleflader, som er lette at bearbejde i traditionelle maskiner. De plane skilleflader kan dog stille uhensigtsmæssigt store krav til den 20 forspændingskraft, som skal til for at hindre skridning af de enkelte elementer i forhold til hinanden, og i en foretrukken udførelsesform anvendes der derfor låseorganer beliggende ved skillefladen for at hindre indbyrdes forskydning af strukturelementerne i skillefladens 25 plan. Udover at nedsætte kravet til stagboltenes forspændingskraft, letter låseorganerne motorens montering, idet de enkelte elementer positioneres i forhold til hinanden af låseorganerne, mens stagboltenes spændes, hvilket ellers som følge af stagboltenes skrå for-30 løb i forhold til samlefladen kunne føre til indbyrdes skridning af elementerne, hvis stagboltene midlertidigt blev spændt uens.In order to facilitate the manufacture of the individual engine elements, it is desirable that the interface between the 15 separate main structural elements extend substantially perpendicular to the center plane of the engine, thereby producing large horizontal joint surfaces which are easy to process in traditional machines. However, the planar partitions may impose unduly high demands on the biasing force required to prevent the sliding of the individual members relative to each other, and in a preferred embodiment, locking means located at the partition surface are therefore used to prevent mutually displacing the structural members of the partition. the plane of the interface 25. In addition to reducing the requirement for the bias bolts, the locking means facilitate the mounting of the motor, the individual elements being positioned relative to each other by the locking means, while tightening the bolt bolts, which otherwise could result in the sliding of the stag bolts relative to the connecting surface. the elements if the stag bolts were temporarily tightened apart.

Ifølge en foretrukken udførelsesform er det også muligt at frembringe en geometrisk bestemt låsning mel-35 lem de separate hovedstrukturelementer, ved at skillefladen mellem disse elementer omfatter mindst to plane DK 169825 B1 5 afsnit, som ligger på hver sin side af motorens centerplan og forløber i en vinkel i forhold hertil. På denne vis kan skillefladen gives en slags tagfacon, hvor en relativ bevægelse langs den ene tagflade kræver åbning 5 af den anden tagflade samt en deraf følgende ekstra strækning i de tilhørende stagbolte, hvilket normalt ikke er muligt. Denne form for sammenlåsning af de separate elementer er ganske vist mere omkostningskrævende at fremstille, men der frembringes en meget effektiv 10 låsning, hvilket er særlig fordelagtigt ved V-motorer med en forholdsvis stor vinkel mellem de to cylinderrækker. Cylinderkræfternes komposant i skillefladens plan kan hensigtsmæssigt minimeres, ved at skillefladens plane afsnit står hovedsageligt vinkelret på den 15 tilhørende cylinders centerakse.According to a preferred embodiment, it is also possible to provide a geometrically determined locking between the separate main structural elements, in that the interface between these elements comprises at least two planar sections which lie on each side of the center plane of the engine and extend in an angle in relation thereto. In this way, the dividing surface can be given a kind of roof shape, where a relative movement along one roof surface requires opening 5 of the other roof surface and a consequent extra stretch in the associated stud bolts, which is normally not possible. This kind of interlocking of the separate elements is more costly to produce, but a very efficient locking is produced, which is particularly advantageous for V-motors with a relatively large angle between the two cylinder rows. Conveniently, the component forces of the cylinder forces in the plane of the interface can be minimized by the plane portion of the interface being substantially perpendicular to the center axis of the associated cylinder.

Opfindelsen forklares herefter nærmere med henvisning til den skematiske tegning, hvor fig. 1 viser et tværsnit gennem en første udførelsesform for en motor ifølge opfindelsen, 20 fig. 2 et tilsvarende billede af en anden ud førelsesform ifølge opfindelsen, og fig. 3 i større skala et udsnit af samlefladen mellem to elementer.The invention will now be explained in more detail with reference to the schematic drawing, in which fig. 1 is a cross-section through a first embodiment of a motor according to the invention; FIG. 2 is a similar view of another embodiment of the invention; and FIG. 3 shows on a larger scale a section of the interface between two elements.

I fig. 1 ses en totakts langslags V-motor 1 25 af krydshovedtypen, hvor cylindrene er monteret i V-facon i to rækker, så stemplerne i to nabocylindre 2, 3 er forbundet med en fælles plejlstangssøle 4 på en krumtapaksel 5. Stemplerne er forbundet med sølen 4 gennem stempelstangen 6 og en plej Istang 7, der er 30 indbyrdes forbundet i et krydshoved 8, som er styret i motorens tværretning af styresko 9, der glider på styreplaner 10. Disse styreplaner er fastgjort på opstående tværvægge 11, som adskiller de enkelte cylinderpar fra hinanden i motorens længderetning.In FIG. 1, a two-stroke long-stroke V-motor 1 25 of the cross-head type is seen, the cylinders mounted in V-shape in two rows, so that the pistons in two neighboring cylinders 2, 3 are connected to a common connecting rod column 4 on a crankshaft 5. The pistons are connected to the sill. 4 through the piston rod 6 and a groove rod 7 which are interconnected in a crosshead 8 which is guided in the transverse direction of the motor by guiding shoe 9 sliding on guide planes 10. These control planes are fixed to upright transverse walls 11 which separate the individual cylinder pairs. apart in the longitudinal direction of the motor.

35 Stempeldiameteren er på 90 cm, og motorens slag længde er på mere end 2,5 m, hvilket giver motoren en DK 169825 B1 6 totalhøjde på ca. 12 m. I en tolvcylindret udførelse har motoren en totallængde på knap 14 m, hvilket skal sammenlignes med en totallængde på knap 24 m for de kendte tolvcylindrede motorer med tilsvarende effekt.35 The piston diameter is 90 cm and the stroke of the engine is more than 2.5 m, giving the engine a total height of approx. In a twelve-cylinder version, the engine has a total length of just under 14 m, which is to be compared with a total length of just under 24 m for the known twelve-cylinder engines of similar power.

5 Det ses umiddelbart, at der opnås en væsentlig pladsbesparelse med det viste eksempel på en motor ifølge opfindelsen, der kan udvikle en effekt på mere end 70.000 bruttohestekræfter. Det er naturligvis muligt inden for opfindelsens rammer at lave motorer i andre 10 størrelser, både hvad angår stempeldiameter og effekt.It is readily apparent that a substantial space saving is achieved with the example of an engine according to the invention which can develop an output of more than 70,000 gross horsepower. It is, of course, possible within the scope of the invention to make motors of other sizes, both in piston diameter and power.

Motorens faste hovedstruktur er opdelt i en bundramme 12 og et cylinderparti 13 samt et mellem bundrammen og cylinderpartiet beliggende stativ 14, der omslutter krydshovederne med tilhørende styr og af-15 stivning. Opdelingen af hovedstrukturen i mindre elementer gør det muligt at fremstille og håndtere de enkelte elementer.The fixed main structure of the engine is divided into a bottom frame 12 and a cylinder portion 13 as well as a frame 14 located between the bottom frame and the cylinder portion, which encloses the cross heads with associated guides and stiffeners. The division of the main structure into smaller elements makes it possible to manufacture and handle the individual elements.

Bundrammen er udført med en central, opadvenden-de reces 15, hvorigennem krumtapakslen 5 kan sæn-20 kes ned for aflægning i hovedlejernes underparter, der er monteret i bundrammen. Sideværts uden for recessen strækker bundrammens overside 16 sig skråt nedefter mod bundrammens ydervæg 17. De to på hver sin side af motorens centerplan beliggende skrå afsnit af oversiden 25 16 hælder i hver sin retning i forhold til centerpla nen, så bundrammens overside får tagfacon.The bottom frame is provided with a central, upward recess 15, through which the crankshaft 5 can be lowered for deposition in the main parts of the lower bearings mounted in the bottom frame. Sideways outside of the recess, the bottom surface 16 of the bottom frame extends obliquely downwards to the outer wall 17. The two inclined portions of the upper plane 16 of the motor center inclined in each direction in relation to the center plane, so that the upper surface of the bottom frame receives a roof shape.

Undersiden af stativet 14 er udført med to plane, skråtstillede afsnit 18, hvis hældning svarer til hældningen af bundrammens overside.The underside of the support 14 is provided with two flat, inclined sections 18, the inclination of which corresponds to the inclination of the upper side of the bottom frame.

30 På tilsvarende måde er oversiden 19 af stati vet udformet med to skråtstillede afsnit 20, der passer sammen med ligeledes skråtstillede afsnit 21 på undersiden af cylinderpartiet 13. De skråtstillede afsnit 18, 20 og 21 forløber vinkelret på hver cylin-35 derrækkes langsgående centerplan 22.30 Similarly, the top face 19 of the stand is formed with two inclined sections 20 which also fit with inclined sections 21 on the underside of the cylinder portion 13. The inclined sections 18, 20 and 21 extend perpendicular to each longitudinal center plane 22 of the cylinder 35. .

Cylinderpartiet 13 strækker sig i ét stykke over hele motorens tværretning og omfatter et skylle- · DK 169825 B1 7 luftkammer 23 for hver cylinder. De to skylleluftkamre hørende til et par af nabocylindre er indbyrdes forbundet af en centralt beliggende skylleluftreceiver 24, der forsynes med luft fra en turbolader 25.The cylinder portion 13 extends in one piece over the entire transverse direction of the engine and comprises a flushing chamber 23 for each cylinder. The two purge air chambers belonging to a pair of neighboring cylinders are interconnected by a centrally located purge air receiver 24 supplied with air from a turbocharger 25.

5 Cylinderpartiet 13, stativet 14 og bundram men 12 er spændt sammen ved hjælp af to stagbolte ved hver tværvæg 11. Stagboltene forløber inden i stag-bolterør 27 og bærer ved hver ende en møtrik 28, der er spændt an mod en anlægsflade på henholdsvis 10 oversiden af cylinderpartiet 13 og undersiden af bundrammen 12. Stagboltene forløber parallelt med hver sit centerplan 22 og er beliggende i en sådan passende afstand på ydersiden af centerplanerne, at stagboltenes nedre afsnit kan passere forbi krumtap-15 akslen 5. Da de to stagbolte er anbragt som grenene i et V og forløber på tværs af de to ved hver samleflade beliggende, indbyrdes skråtstillede afsnit 18 og 20, er de tre separate elementer i motorens faste hovedstruktur låst således geometrisk til hinanden, at de af 20 cylinderkræfterne frembragte tværkræfter i hovedstrukturen ikke er i stand til at overvinde de kræfter, som låser elementerne sammen.5 Cylinder portion 13, frame 14 and bottom frame but 12 are clamped together by two stud bolts at each transverse wall 11. The stud bolts extend inside the stud bolt tubes 27 and carry at each end a nut 28 which is tensioned to an abutment surface of 10 respectively. the upper side of the cylinder portion 13 and the underside of the bottom frame 12. The stud bolts extend parallel to each center plane 22 and are located at such a suitable distance on the outside of the center planes that the lower portion of the stud bolts can pass past the crankshaft 5. Since the two stud bolts are disposed as the branches of a V and extending transversely of the two sections at each intersecting surface 18 and 20, the three separate elements of the fixed main structure of the engine are geometrically interlocked so that the transverse forces produced by the 20 cylinder forces are not able to overcome the forces that lock the elements together.

I stedet for at anvende et stagbolterør som er anbragt midt i tværvæggen 11, kan der anvendes et rør 25 på hver side af tværvæggen sammen med tvillingstagbolte. Det er også muligt at forankre stagboltene i bundrammen 12 i niveau ovenover hovedlejerne, så disse ikke belastes af boltenes forspændingskraft. Hvis cylinderpartiet udformes som to separate enheder for 30 hvert cylinderpar, er det for den enkelte cylinder også nødvendigt at anvende en stagbolt på indersiden af cylinderens centerplan. Den nedre ende af denne indre stagbolt kan eksempelvis fastgøres i stativet 14 i et område over krumtapakslen og nær ved motorens langs-35 gående centerplan.Instead of using a stud bolt pipe located in the middle of the cross wall 11, a pipe 25 on each side of the cross wall can be used with twin stud bolts. It is also possible to anchor the stud bolts in the bottom frame 12 in level above the main bearings so that these are not stressed by the biasing force of the bolts. If the cylinder portion is designed as two separate units for each pair of cylinders, it is also necessary for each cylinder to use a stud bolt on the inside of the center plane of the cylinder. For example, the lower end of this inner stud bolt may be secured to the frame 14 in a region above the crankshaft and near the longitudinal center plane of the motor.

I den anden udførelsesform vist i fig. 2 er der lagt hundrede til henvisningstallet for elementer, derIn the second embodiment shown in FIG. 2, hundreds are added to the reference number for elements that

Claims (6)

15 Selvom der i fig. 2 kun er antydet et enkelt låseorgan er det klart, at antallet af låseorganer er afpasset efter størrelsen af de tværkræfter, der skal optages. Låseorganerne kan også udformes på anden vis, eksempelvis som faste tappe, der rager frem fra det ene ele-20 ments flange og passerer ind i styrehuller i det hosliggende elements flange.15 Although in FIG. 2 only a single locking means is indicated, it is clear that the number of locking means is adjusted to the magnitude of the transverse forces to be recorded. The locking means can also be formed in other ways, for example as fixed pins projecting from the flange of one element and passing into guide holes in the flange of the adjacent element. 1. Forbrændingsmotor (1; 101) med cylindre (2, 3; 102, 103) arrangeret i v-facon i to rækker, hvor motorens faste hovedstruktur er opdelt i en separat bundramme (12; 112), hvorpå et motorstativ (14; 114) er monteret, og fortrinsvis yderligere opdelt i et separat 30 cylinderparti (13; 113) monteret på stativet, og hvor de separate hovedstrukturelementer er spændt sammen ved hjælp af stagbolte (26; 126), der strækker sig fra cylinderpartiet til bundrammen, og hvoraf mindst to forløber skråt . i forhold til motorens centerplan 35 (29; 129), kendetegnet ved, at motoren er en totakts krydshovedmotor med på tværgående afstivning DK 169825 B1 9 (11) i stativet monterede styreplaner (10), der over en væsentlig del af stativets højde strækker sig skråt i forhold til motorens centerplan, og at de i bundrammen 12; 112) fastgjorte stagbolte (26; 126) passerer på 5 langs af og uden for det i tværretningen yderste styreplan (10) for den tilhørende cylinder (2, 3).An internal combustion engine (1; 101) with cylinders (2, 3; 102, 103) arranged in v-shape in two rows, wherein the fixed main structure of the engine is divided into a separate bottom frame (12; 112), on which an engine rack (14; 114) is mounted, and preferably further divided into a separate cylinder portion (13; 113) mounted on the frame, and wherein the separate main structural members are clamped together by stud bolts (26; 126) extending from the cylinder portion to the bottom frame, and at least two of which are inclined. in relation to the center plane of the motor 35 (29; 129), characterized in that the motor is a two-stroke cross-head motor with transverse bracing DK 169825 B1 9 (11) mounted in the frame control planes (10) which extend over a substantial part of the height of the frame. oblique to the center plane of the engine and to the bottom frame 12; 112) fixed stud bolts (26; 126) pass on 5 along the outside and outside of the transverse guide plane (10) of the associated cylinder (2, 3). 2. Forbrændingsmotor ifølge krav l, kendetegnet ved, at stagboltene (26; 126) forløber i det væsentlige parallelt med styreplanerne (10; 110).Combustion engine according to claim 1, characterized in that the stud bolts (26; 126) extend substantially parallel to the guide planes (10; 110). 3. Forbrændingsmotor ifølge krav l eller 2, kendetegnet ved, at cylinderpartiet (13; 113. for to nabocylindre i hver sin række er udført i et stykke, og at alle stagboltene (26; 126) set i motorens tværretning ligger uden for det i tværretningen 15 yderste styreplan (10) for den tilhørende cylinder (2,3).An internal combustion engine according to claim 1 or 2, characterized in that the cylinder portion (13; 113. for two adjacent cylinders in each row is made in one piece and that all of the stud bolts (26; 126) are seen in the transverse direction of the engine outside it. the transverse direction 15 outer guide plane (10) of the associated cylinder (2,3). 4. Forbrændingsmotor ifølge et af kravene 1-3, kendetegnet ved, at skillefladen (130) mellem de separate hovedstrukturelementer (112, 113, 114) 20 forløber i det væsentlige vinkelret på motorens centerplan (129), og at låseorganer (131) beliggende ved skillefladen hindrer indbyrdes forskydning af strukturelementerne i skillefladens plan.Internal combustion engine according to one of claims 1-3, characterized in that the separating surface (130) between the separate main structural elements (112, 113, 114) 20 extends substantially perpendicular to the center plane of the engine (129) and that locking means (131) are located at the interface prevents displacement of the structural elements in the plane of the interface. 5. Forbrændingsmotor ifølge et af kravene 1-3, 25 kendetegnet ved, at skillefladen mellem de separate hovedstrukturelementer (12, 13, 14) omfatter mindst to plane afsnit (18, 20, 21), som ligger på hver sin side af motorens centerplan (29) og forløber i en vinkel i forhold hertil.Internal combustion engine according to one of claims 1-3, 25, characterized in that the interface between the separate main structural elements (12, 13, 14) comprises at least two flat sections (18, 20, 21) which are located on either side of the center plane of the engine. (29) and runs at an angle to it. 6. Forbrændingsmotor ifølge krav 5, kende tegnet ved, at skillefladens plane afsnit (18, 20, 21) står hovedsageligt vinkelret på den tilhørende cylinders centerakse.An internal combustion engine according to claim 5, characterized in that the plane portions (18, 20, 21) of the interface are substantially perpendicular to the center axis of the associated cylinder.
DK147792A 1992-12-09 1992-12-09 Internal combustion engine DK169825B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DK147792A DK169825B1 (en) 1992-12-09 1992-12-09 Internal combustion engine
KR1019950700106A KR100245083B1 (en) 1992-12-09 1993-11-19 An internal combustion engine
PCT/DK1993/000379 WO1994013948A1 (en) 1992-12-09 1993-11-19 An internal combustion engine
JP6513676A JP2977902B2 (en) 1992-12-09 1993-11-19 engine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK147792A DK169825B1 (en) 1992-12-09 1992-12-09 Internal combustion engine
DK147792 1992-12-09

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DK147792D0 DK147792D0 (en) 1992-12-09
DK147792A DK147792A (en) 1993-05-21
DK169825B1 true DK169825B1 (en) 1995-03-06

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WO (1) WO1994013948A1 (en)

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GB2389147A (en) 2002-05-31 2003-12-03 Man B & W Diesel Ltd I.c. engine air manifold arrangement
DE102004043338A1 (en) * 2004-09-08 2006-03-09 Daimlerchrysler Ag Internal combustion engine, has cylinder head, crank case and crank shaft bearing that are deformed against one another using tie rods, where tie rods are arranged in proximity to crank shaft bearing
DE102004044780A1 (en) * 2004-09-16 2005-08-25 Daimlerchrysler Ag Internal combustion engine for operating a V-shaped cylinder engine has a crankcase with V-shaped cylinder cases, cylinder heads and main bearings with bearing cap pieces
DE102007024650A1 (en) * 2007-05-26 2008-11-27 Audi Ag Internal-combustion engine has V-shaped cylinder arrangement and two-piece crank case, which has crank case upper section and crank case lower section, and screw connection
CN104358591B (en) * 2014-09-24 2016-10-05 辽宁工程技术大学 Opposed piston air motor

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US2041979A (en) * 1933-08-14 1936-05-26 Atlas Diesel Ab Means for anchoring cylinders in engines with angularly disposed cylinders
US3318297A (en) * 1966-02-14 1967-05-09 Goetaverken Ab Arrangement in v-type combustion engines

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KR100245083B1 (en) 2000-03-02
WO1994013948A1 (en) 1994-06-23
DK147792A (en) 1993-05-21
JPH08504493A (en) 1996-05-14
DK147792D0 (en) 1992-12-09
KR950702674A (en) 1995-07-29
JP2977902B2 (en) 1999-11-15

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