DK148169B - OIL COOLED STAMP WITH SWIMMING Piston LOSS FOR A COMBUSTION ENGINE - Google Patents

OIL COOLED STAMP WITH SWIMMING Piston LOSS FOR A COMBUSTION ENGINE Download PDF

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Publication number
DK148169B
DK148169B DK371879AA DK371879A DK148169B DK 148169 B DK148169 B DK 148169B DK 371879A A DK371879A A DK 371879AA DK 371879 A DK371879 A DK 371879A DK 148169 B DK148169 B DK 148169B
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Prior art keywords
piston pin
piston
channels
pin
circumference
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DK371879AA
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Danish (da)
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DK148169C (en
DK371879A (en
Inventor
Folmer Rodskier
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Nohab Diesel Ab
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J1/00—Pistons; Trunk pistons; Plungers
    • F16J1/10—Connection to driving members
    • F16J1/14—Connection to driving members with connecting-rods, i.e. pivotal connections
    • F16J1/16—Connection to driving members with connecting-rods, i.e. pivotal connections with gudgeon-pin; Gudgeon-pins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/08—Lubricating systems characterised by the provision therein of lubricant jetting means
    • F01M2001/086—Lubricating systems characterised by the provision therein of lubricant jetting means for lubricating gudgeon pins

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Description

148169 i148169 i

Opfindelsen angår et oliekølet stempel med svømmende stempeltap til en forbrændingsmotor og med en plejIstang, der har en langsgående oliekølekanal,og hvor stempeltappen har en gennemgående passage, som kan lede køleolien fra oliekølekanalen gen-5 nem plejlstangens stempeltapleje til stemplet gennem mindst ét af stempeltaplejerne i stemplet.The invention relates to an oil-cooled piston having a floating piston pin for an internal combustion engine and having a plunger rod having a longitudinal oil cooling duct, and the piston pin having a through passage which can pass the cooling oil from the oil cooling duct through the plunger rod piston plunger to the plunger through the plunger piston.

Det er kendt at udforme svømmende stempeltappe med et indre hulrum, som står i forbindelse med åbninger, der er fordelt langs stempeltappens omkreds, og som befinder sig ud for hen-10 holdsvis stempeltappens leje i plejlstangen og ud for stempel tappens lejer i stemplet på en sådan måde, at en åbning altid, uanset hvorledes stempeltappen drejer sig, står i forbindelse med en rille i stempeltappens leje i plejlstangen, medens en anden åbning samtidig står i forbindelse med en tilsvarende ril-15 le i hvert af stempeltappens lejer i stemplet. Der skal i denne forbindelse henvises til beskrivelsen til dansk patent nr.It is known to design a floating piston pin with an inner cavity, which communicates with openings distributed along the circumference of the piston pin, which are located respectively on the bearing of the piston pin in the peg rod and next to the piston pin bearings in the piston of a piston rod. in such a way that one opening always, irrespective of how the piston pin rotates, is connected to a groove in the piston pin bearing in the pivot rod, while a different opening is simultaneously connected to a corresponding groove in each of the piston pin bearings in the piston. In this connection, reference should be made to the description of Danish patent no.

134.244. Det problem, som opstår ved den i det foregående beskrevne udformning, består i, at stempeltappens indre hulrum skal være forseglet ved stempeltappens ender, således at olie 20 ikke kan lække ud og strømme ind i cylinderen. I reglen er stempeltappen fremstillet i form af et tykvægget rør, der er lukket ved begge ender ved hjælp af et specielt dæksel. Disse dæksler kan enten være fastgjort ved hjælp af gevind eller kan være indpresset i riller i materialet. Når der imidlertid 25 ofte optræder ekstreme belastninger på motoren, kan stempel tappen blive deformeret, d.v.s. blive oval i en sådan grad, at olie begynder at lække ud af stempeltappens endelukker i så store mængder, at motorens arbejde forringes. Det er endog sket, at stempeltappe er blevet deformeret i en sådan grad, at dæk-30 sierne er gået i stykker, hvilket har medført svære beskadigel ser.134,244. The problem that arises with the embodiment described above is that the inner cavity of the piston pin must be sealed at the ends of the piston pin so that oil 20 cannot leak out and flow into the cylinder. As a rule, the piston pin is made in the form of a thick-walled pipe closed at both ends by means of a special cover. These covers can either be fastened by thread or can be pressed into grooves in the material. However, when 25 extreme loads often occur on the motor, the piston pin can be deformed, i.e. become oval to such an extent that oil begins to leak out of the piston end closures in such quantities that engine work is impaired. It has even happened that piston pins have been deformed to such an extent that the tires have broken, which has caused severe damage.

Ifølge en anden, forholdsvis ofte anvendt udformning er eh hul stempeltap forsynet med en indpresset inderbøsning, som efterlader et frit mellemrum mellem inderbøsningen og indersiden 35 af stempeltappen, og som ved sine ender er indtrykket i riller i stempeltappens indervæg. Mellemrummet mellem bøsningen og indersiden af stempeltappen tilvejebringer derved en fri passage for køleolien mellem et antal åbninger, som er tilvejebragt 148169 2 langs omkredsen af stempeltappen.According to another, relatively frequently used embodiment, a hollow piston pin is provided with a compressed inner sleeve which leaves a free space between the inner sleeve and the inside of the piston pin and which at its ends is indented in grooves in the inner wall of the piston pin. The space between the sleeve and the inside of the piston pin thereby provides a free passage of the cooling oil between a number of openings provided along the circumference of the piston pin.

De ulemper, som denne udformning er forbundet med, er tilnærmelsesvis de samme, som er forbundet med den tidligere omtalte udformning, nemlig at stempeltappen, når motoren underkastes 5 ekstreme belastninger, let kan blive oval i en sådan grad, at olie begynder at lække ud mellem bøsningen og indersiden af stempeltappen. En sådan olielækage vil næsten altid medføre alvorlige havarier, med mindre der træffes de fornødne foranstaltninger til undgåelse heraf.The disadvantages associated with this configuration are approximately the same as those associated with the previously mentioned design, namely that the piston pin, when subjected to 5 extreme loads, can easily become oval to such an extent that oil begins to leak. between the bushing and the inside of the piston pin. Such an oil leak will almost always cause serious accidents unless the necessary measures are taken to avoid it.

10 Det oliekølede stempel ifølge opfindelsen er ejendommeligt ved, at stempeltappen er fremstillet i ét stykke, og at den nævnte passage består af kanaler, som forløber diagonalt gennem tappens iøvrigt massive, centrale kerne, hvilke kanaler står i forbindelse med hinanden og forløber fra omkredsen af stempeltappen 15 ved et sted, som befinder sig ud for stempeltappens leje i plejl- stangen og til omkredsen af stempeltappen ved ét sted, som befinder sig ud for mindst ét af stempeltappens lejer i stemplet.The oil-cooled piston according to the invention is characterized in that the piston pin is made in one piece and that said passage consists of channels extending diagonally through the otherwise solid central core of the pin, which channels are connected to each other and extend from the circumference of the the piston pin 15 at a location adjacent to the piston pin bearing in the connecting rod and to the circumference of the piston pin at one location adjacent to at least one of the piston pin bearings in the piston.

Ifølge den foreliggende opfindelse er der således tilvejebragt en stempeltap, som er fremstillet i et stykke, hvor en-20 hver form for lækage og fejlfunktionering forårsaget af spille rum mellem de forskellige dele af en stempeltap fremstillet af flere dele er blevet undgået. Endvidere sikrer det forhold, at kanalerne står i forbindelse med hinanden, at der altid vil være forbindelse mellem oliekølekanalen gennem plejlstangen og 25 til det nævnte mindst ene af stempeltappens lejer i stemplet, uanset den svømmende stempeltaps vinkelstilling i forhold til stemplet.Thus, according to the present invention, there is provided a one-piece piston pin which avoids any kind of leakage and malfunction caused by clearance between the various portions of a plurality of piston pins. Furthermore, the fact that the channels are interconnected ensures that there will always be a connection between the oil cooling duct through the connecting rod and 25 to said at least one of the piston pin bearings in the piston, regardless of the angular position of the piston pin relative to the piston.

En udførelsesform for stemplet er ifølge opfindelsen ejendommelig ved, at de diagonalt forløbende kanaler står i for-30 bindelse med hinanden ved, at de skærer hinanden ved steder af stempeltappens midterlinie. Herved opnås det, at forbindelsen mellem de diagonalt forløbende kanaler kommer til at svække stempeltappen mindst muligt.An embodiment of the piston according to the invention is characterized in that the diagonally extending channels are in contact with each other in that they intersect at places of the center line of the piston pin. This ensures that the connection between the diagonally extending channels will at least weaken the piston pin.

Opfindelsen skal herefter forklares nærmere under henvisning 35 til tegningen, hvor fig. 1 viser et snit gennem en udførelsesform for et dieselmotorstempel med en svømmende stempeltap ifølge opfindelsen, 3 148169 fig. 2 en del af et snit A-A lagt vinkelret på tegneplanet i fig. 1, og fig. 3, 4 og 5 henholdsvis et aksialsnit gennem stempeltappen i fig. 1, et endebillede af denne og et tvær-5 snit efter linien B-B i fig. 3.The invention will now be explained in more detail with reference to the drawing, in which fig. 1 shows a section through an embodiment of a diesel engine piston with a floating piston pin according to the invention; FIG. 2 is a section of a section A-A perpendicular to the drawing plane of FIG. 1, and FIG. 3, 4 and 5, respectively, an axial section through the piston pin of FIG. 1, an end view thereof and a cross-section along line B-B of FIG. Third

Et stempel 1, som er vist i gennemskåret tilstand i fig. 1/ er ved hjælp af en stempeltap 2 forbundet med en plejlstang 3, hvoraf kun en del er vist i fig. 1. I venstre halvdel af fig. 1 er stempeltappen og plejlstangen vist i snit. Den svømmende 10 stempeltap 2, som er anbragt på i og for sig kendt måde, er sikret ved sine to ender i længderetningen i stemplets stempel-tapleje 4,5 ved hjælp af to stopringe 6 og 7.A piston 1, shown in the cut-away condition in FIG. 1 / is connected to a connecting rod 3 by means of a piston pin 2, only part of which is shown in FIG. 1. In the left half of FIG. 1, the piston pin and connecting rod are shown in section. The swimming 10 piston pin 2, which is arranged in a manner known per se, is secured at its two longitudinal ends in the piston pin bearing 4,5 of the piston by two stop rings 6 and 7.

Plejlstangen 3 er forsynet med en lejebøsning 9 til stempeltappen, og lejebøsningen er fastholdt ved hjælp af en sæt-15 skrue 8 i plejlstangen. Plejlstangen har en fødekanal 10 til køleolie.The bearing rod 3 is provided with a bearing bushing 9 for the piston pin, and the bearing bushing is retained by means of a set screw 8 in the tie rod. The connecting rod has a feed channel 10 for cooling oil.

Stemplet har en transportkanal 11, som fører fra stempel-taplejet 5 til en køleoliekanal 12 i stempelhovedet.The piston has a transport channel 11 which leads from the piston pin bearing 5 to a cooling oil channel 12 in the piston head.

Passagen af olien gennem lejebøsningen 9 i plejlstangen til 20 stempeltappen 2 og fra stempeltappen til transportkanalen 11 i stemplet vil let forstås på grundlag af fig. 1 suppleret med fig. 2, som viser snit af både plejlstangen og af stemplet efter snitlinien A-A.The passage of the oil through the bearing bushing 9 in the connecting rod to the piston pin 2 and from the piston pin to the transport channel 11 in the piston will be readily understood on the basis of FIG. 1 supplemented with FIG. 2, which shows sections of both the connecting rod and of the piston along section line A-A.

Bøsningen 9, som udgør taplejet i plejlstangen, har, således 25 som det fremgår af fig. 2, en udvendig rundtgående rille 13, som imidlertid kun strækker sig langs 180° af lejebøsningens udvendige omkreds, og lejebøsningen har endvidere en indvendig rundtgående rille 14, som strækker sig langs de 180° af den indvendige omkreds af bøsningens lejeflade, som består af den del, der 30 ikke har nogen udvendig rille. Disse to riller står i forbindelse med hinanden gennem åbninger 15 ved rillernes ender. (Kun én af åbningerne er vist i fig. 2).The sleeve 9, which constitutes the pin bearing in the connecting rod, has, as shown in FIG. 2, an outer circumferential groove 13 which extends only along 180 ° of the outer circumference of the bearing sleeve, and furthermore, the bearing sleeve has an inner circumferential groove 14 extending along the 180 ° of the inner circumference of the bearing surface of the sleeve which is comprised of the part having no outer groove. These two grooves communicate with each other through openings 15 at the ends of the grooves. (Only one of the openings is shown in Fig. 2).

En fødekanal 10 i plejlstangen udmunder i den udvendige rille 13 i bøsningen, og køleolien fortsætter til den indvendige 35 rille gennem åbningerne 15. Der står således køleolie til rådig hed i rillen 14 langs 180° af omkredsen af bøsningens indvendige lejeflade.A feed channel 10 in the connecting rod opens into the outer groove 13 in the bush and the cooling oil continues to the inner 35 groove through the openings 15. Thus, cooling oil is available in the groove 14 along 180 ° of the circumference of the inner bearing surface of the sleeve.

I stempeltappen 2 og ud for kanalen 14 findes der tre indløbs-In the piston pin 2 and next to the duct 14 there are three inlets.

Claims (6)

148169 åbninger 16, 17 og 18, som er fordelt 120° langs stempeltappens omkreds. Fra hver af disse åbninger er der boret to kanaler 19, 20, 21, 22, 23, 24 skråt bort fra hinanden og mod enderne af stempeltappen diagonalt gennem denne, og som udmunder ved om-5 kredsen af stempeltappen ud for dennes to lejer 4,5 i stemplet. Disse kanaler forløber parvis fra samme indløbsåbning og følger det samme midterplan gennem stempeltappens midterakse, og følgelig vil kanalernes udløb også være fordelt 120° langs stempeltappens omkreds. Kanalerne udmunder endvidere i samme afstand 10 fra stempeltappens ender, hvilket indebærer, at kanalerne skæ rer hinanden omkring stempeltappens midterakse, d.v.s. hvor stempeltappen er udsat for den mindste belastning. Åbningerne 19-24 udmunder ved omkredsen af stempeltappen ud for riller 25, 26 af samme art som rillen 14 i taplejet i plejIstangen og til-15 vejebragt i stemplets taplejer 4,5. Fra mindst en af disse ril ler, i fig. 1 rillen 25, forløber transportkanalen 11 for videre transport af køleolie til kølekanalen 12 i stempelhovedet. Punkterede linier 27 angiver kølekanalen 12's udløb. Da alle stempeltappens kanaler 19-24 er forbundet med hinanden i kraft af sammen-20 skæringer og fælles indløb, er transportkapaciteten, hvad angår køleolie gennem stempeltappen, uafhængig af drejningen af stempeltappen i lejerne. Antallet af indløb og udløb og deres anbringelse i forhold til hinanden kombineret med udformningen af rillerne 14, 25 og 26 indebærer også, at transportkapaciteten 25 til og fra stempeltappen er konstant uændret uanset drejningen af stempeltappen. Strømningsretningerne for køleolien er antydet med pile i fig. 1 og 2. Henholdsvis den højre og den venstre halvdel i fig. 3 30 viser to forskellige udførelsesformer, hvoraf den til højre viste er en udførelsesform, som er forsynet med vægtbesparelseshuller 28 i sine ender. Patentkrav.Orifices 16, 17 and 18 which are spaced 120 ° along the circumference of the piston pin. From each of these openings two channels 19, 20, 21, 22, 23, 24 are drilled obliquely away from each other and towards the ends of the piston pin diagonally through it, and which open at the circumference of the piston pin next to its two bearings 4 , 5 in the stamp. These channels extend in pairs from the same inlet opening and follow the same center plane through the center axis of the piston pin, and consequently the outlet of the channels will also be distributed 120 ° along the circumference of the piston pin. The channels further open at the same distance 10 from the ends of the piston pin, which means that the channels intersect around the central axis of the piston pin, i.e.. where the piston pin is exposed to the least load. The openings 19-24, at the circumference of the piston pin, are adjacent to grooves 25, 26 of the same kind as the groove 14 in the tab bearing in the groove bar and provided in the stamp bearing pins 4,5. From at least one of these grooves, in FIG. In the groove 25, the transport channel 11 extends for further transport of cooling oil to the cooling channel 12 in the piston head. Dotted lines 27 indicate the outlet of cooling duct 12. Since all the channels of the piston pin 19-24 are interconnected by virtue of intersections and common inlets, the transport capacity of cooling oil through the piston pin is independent of the rotation of the piston pin in the bearings. The number of inlets and outlets and their arrangement relative to each other combined with the design of the grooves 14, 25 and 26 also means that the transport capacity 25 to and from the piston pin is constantly unchanged regardless of the rotation of the piston pin. The flow directions of the cooling oil are indicated by arrows in FIG. 1 and 2. The right and left half of FIG. Fig. 30 shows two different embodiments, the one shown on the right is an embodiment provided with weight saving holes 28 at its ends. Claims. 1. Oliekølet stempel med svømmende stempeltap (2) til en 35 forbrændingsmotor og med en plejlstang (3), der har en langs gående oliekølekanal (10), og hvor stempeltappen (2) har en gennemgående passage, som kan lede køleolien fra oliekølekana- 148169 len (10) gennem plejlstangens (3) stempeltapleje (9) til stemplet (1) gennem mindst ét af stempeltaplejerne (4,5) i stemplet (1) ,kendetegnet ved, at stempeltappen (2) er fremstillet i ét stykke, og at den nævnte passage består af kana- 5 ler (19-24), som forløber diagonalt gennem tappens (2) iøvrigt massive, centrale kerne, hvilke kanaler (19-24) står i forbindelse med hinanden og forløber fra omkredsen af stempeltappen (2) ved et sted, som befinder sig ud for stempeltappens (2) leje (9) i plejIstangen (3) og til omkredsen af stempeltappen (2) ved 10 et sted, som befinder sig ud for mindst ét af stempeltappens lejer (4,5) i stemplet (1).An oil-cooled piston with a floating piston pin (2) for an internal combustion engine and with a connecting rod (3) having a longitudinal oil cooling duct (10) and the piston pin (2) having a through passage which can direct the cooling oil from the oil cooling duct. The piston (10) through the piston pin bearing (9) of the connecting rod (3) to the piston (1) through at least one of the piston pin bearings (4,5) in the piston (1), characterized in that the piston pin (2) is made in one piece, and said passage consists of channels (19-24) extending diagonally through the otherwise solid central core of the pin (2), which channels (19-24) are interconnected and extending from the circumference of the piston pin (2) ) at a location adjacent to the bearing (9) of the piston pin (9) in the plunger rod (3) and to the perimeter of the piston pin (2) at a location adjacent to at least one of the piston pin bearings (4,5 ) in the plunger (1). 2. Stempel ifølge krav 1, kendetegnet ved, at de diagonalt forløbende kanaler (19-24) står i forbindelse med hinanden ved, at de skærer hinanden ved steder af stempeltappens 15 midterlinie.Piston according to claim 1, characterized in that the diagonally extending channels (19-24) are interconnected in that they intersect at locations of the center line of the piston pin 15. 3. Stempel ifølge krav 1 eller 2, kendetegnet ved, at de diagonalt forløbende kanaler (19-24) parvis forløber fra fælles åbninger (16,17,18) i omkredsen af stempeltappen (2) ved et sted, der befinder sig ud for stempeltappens (2) leje 20 (9) i plej Istangen og derfra mod omkredsen af stempeltappen (2) ved hver af dennes respektive ender og ud for tappens lejer (4,5) i stemplet (1).Piston according to claim 1 or 2, characterized in that the diagonally extending channels (19-24) extend in pairs from common openings (16,17,18) in the circumference of the piston pin (2) at a location adjacent to the bearing 20 (9) of the piston pin (2) in the piston rod and thence towards the circumference of the piston pin (2) at each of its respective ends and next to the bearing bearings (4,5) of the piston (1). 4. Stempel ifølge krav 3, kendetegnet ved, at hvert par af af de parvis fra fællesåbningerne (16,17,18) ud- 25 gående kanaler (19-24) forløber diagonalt gennem et og samme delingsplan, som forløber gennem stempeltappens (2) midterakse.Piston according to claim 3, characterized in that each pair of channels (19 - 24) extending from the pairs (16,17,18) extending diagonally through one and the same dividing plane extending through the piston pin (2) ) center axis. 5. Stempel ifølge krav 4, kendetegnet ved, at stempeltappen (2) har seks sådanne parvis fra samme åbninger (16,17,18) udgående kanaler (19-24), og at hvert af de tre 30 delingsplaner, hvori disse seks kanaler (19-24) er fordelt, skæ rer hinanden under en vinkel på 60°, hvilket giver en vinkel på 120° mellem kanalernes (19-24) åbninger ved de respektive lejer (henholdsvis 4,5) i henholdsvis stemplet (1) og plejl-stangen (3).Piston according to claim 4, characterized in that the piston pin (2) has six such pairs extending from the same openings (16,17,18) (19-24) and each of the three splitting planes in which these six channels (19-24) are spaced apart, intersecting at an angle of 60 °, giving an angle of 120 ° between the openings of the channels (19-24) at the respective bearings (4.5, respectively) of the piston (1) and the tie rod (3). 6. Stempel ifølge krav 5, kendetegnet ved, at der i hvert af stempeltappens (2) lejer (4,5) i stemplet er udsparet en rille (26,25), hvilke riller (26,25) hver forløber langs 120-180° af den indvendige omkreds af lejeoverfladenPiston according to claim 5, characterized in that in each of the bearings (4,5) of the piston pin (2), a groove (26,25) is recessed, which grooves (26,25) each extending along 120-180 ° of the inner circumference of the bearing surface
DK371879A 1978-09-06 1979-09-05 OIL COOLED STAMP WITH SWIMMING Piston LOSS FOR A COMBUSTION ENGINE DK148169C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE7809366 1978-09-06
SE7809366A SE422979B (en) 1978-09-06 1978-09-06 LIQUID PISTON FLOATING ENGINE WITH OIL COOLED PISTON

Publications (3)

Publication Number Publication Date
DK371879A DK371879A (en) 1980-03-07
DK148169B true DK148169B (en) 1985-03-25
DK148169C DK148169C (en) 1985-12-02

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DE (1) DE2936068A1 (en)
DK (1) DK148169C (en)
FI (1) FI64446C (en)
FR (1) FR2435640A1 (en)
GB (1) GB2031112B (en)
IT (1) IT1120554B (en)
SE (1) SE422979B (en)

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DE9108696U1 (en) * 1991-07-15 1991-08-29 Alcan Deutschland GmbH, 3400 Göttingen Pistons for internal combustion engines
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DE4410141B4 (en) * 1994-03-24 2008-05-08 Mahle Gmbh Closing of production-related holes in pistons with cooling channel
DE19954725A1 (en) * 1999-11-12 2001-05-23 Ks Kolbenschmidt Gmbh Piston with a connection from a cooling channel to a piston pin bore
EP2855907B1 (en) 2012-06-04 2016-07-27 Componenta Finland Oy Piston for internal combustion engine
CN107489511A (en) * 2016-12-23 2017-12-19 宝沃汽车（中国）有限公司 A kind of vehicle, engine and piston connecting rod unit cooling body

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DE2348870A1 (en) * 1973-09-28 1975-04-10 Maschf Augsburg Nuernberg Ag MULTI-PIECE PISTON FOR COMBUSTION MACHINES, IN PARTICULAR LARGE DIESEL ENGINES

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FR2435640A1 (en) 1980-04-04
IT7950148A0 (en) 1979-09-03
FI792711A (en) 1980-03-07
FI64446B (en) 1983-07-29
SE422979B (en) 1982-04-05
DE2936068A1 (en) 1980-03-20
SE7809366L (en) 1980-03-07
FR2435640B1 (en) 1983-12-16
DE2936068C2 (en) 1988-09-01
IT1120554B (en) 1986-03-26
GB2031112B (en) 1982-08-25
GB2031112A (en) 1980-04-16
FI64446C (en) 1983-11-10
DK148169C (en) 1985-12-02
DK371879A (en) 1980-03-07

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