DK172977B1 - crosshead - Google Patents

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Publication number
DK172977B1
DK172977B1 DK199301021A DK102193A DK172977B1 DK 172977 B1 DK172977 B1 DK 172977B1 DK 199301021 A DK199301021 A DK 199301021A DK 102193 A DK102193 A DK 102193A DK 172977 B1 DK172977 B1 DK 172977B1
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DK
Denmark
Prior art keywords
cross
head
section
stick
shoe
Prior art date
Application number
DK199301021A
Other languages
Danish (da)
Other versions
DK102193A (en
DK102193D0 (en
Inventor
Finn Quordrup Jensen
Original Assignee
Man B & W Diesel As
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 Man B & W Diesel As filed Critical Man B & W Diesel As
Priority to DK199301021A priority Critical patent/DK172977B1/en
Publication of DK102193D0 publication Critical patent/DK102193D0/en
Priority to KR1019960700017A priority patent/KR100310085B1/en
Priority to PCT/DK1994/000336 priority patent/WO1995008066A1/en
Priority to JP50891595A priority patent/JP3212610B2/en
Publication of DK102193A publication Critical patent/DK102193A/en
Application granted granted Critical
Publication of DK172977B1 publication Critical patent/DK172977B1/en

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Classifications

    • 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
    • F02F7/0021Construction
    • F02F7/0034Built from sheet material and welded casings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C5/00Crossheads; Constructions of connecting-rod heads or piston-rod connections rigid with crossheads
    • 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
    • F02FCYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00Casings, e.g. crankcases or frames
    • F02F7/0002Cylinder arrangements
    • F02F7/0007Crankcases of engines with cylinders in line
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16JPISTONS; CYLINDERS; SEALINGS
    • F16J7/00Piston-rods
    • 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
    • F02B75/02Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/025Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
    • 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
    • F02F2007/0097Casings, e.g. crankcases or frames for large diesel engines

Description

DK 172977 B1 iDK 172977 B1 i

Opfindelsen angår et krydshoved til en stor totakts V-motor af krydshovedtypen med cylindrene arrangeret i to rækker og med tværgående afstivning, som bærer styreplaner for krydshoveder i par af sammenhørende 5 nabocylindre beliggende i hver sin række, hvor de to til et cylinderpar hørende plejIstænger er lejret side om side på en fælles plejlstangssøle, og hvor sølefladen på en krydshovedpind ligger således asymmetrisk i pindens længderetning, at et første pindafsnit, som 10 forbinder sølefladen med den ene krydshovedsko, har større længde end et andet pindafsnit, som forbinder sølefladen med den anden krydshovedsko.BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to a cross-head for a large two-stroke cross-head V-type engine with the cylinders arranged in two rows and with transverse stiffeners, which carry control planes for cross-heads in pairs of connected 5 neighboring cylinders located in a row, wherein the two connecting rods of one cylinder are mounted side by side on a common connecting rod column, and the column surface of a cross head pin is asymmetrically longitudinally of the pin that a first pin section connecting the column to one cross head shoe has a greater length than a second pin section connecting the column surface to the other. crosshead shoe.

Et sådant krydshoved kendes fra ansøgerens danske patentansøgning nr. 1479/92. Krydshovedet er en vital, 15 hårdt belastet motorkomponent, der skal være meget driftsikker. I store krydshovedmotorer med ydelser på op til 5000 kW per cylinder skal krydshovedet overføre store trykkræfter fra stempelstangen til plejIstangen, og da plejlstangens oscillerende svingebevægelse i 20 forhold til stempelstangen sker ved lav hastighed og med begrænset amplitude er det vanskeligt at opretholde en smøreoliefilm af passende tykkelse mellem krydshoved-lejets søleflade og glidefladen i det omgivende krydsho-vedhus.Such a crosshead is known from the applicant's Danish patent application no. 1479/92. The cross head is a vital, 15 heavily loaded engine component that must be very reliable. In large cross-head motors with a capacity of up to 5000 kW per cylinder, the cross-head must transmit large compressive forces from the piston rod to the grooming rod, and since the oscillating oscillating swing movement of the groove rod at low speed and with limited amplitude, it is difficult to maintain a suitable lubricating oil film between the cross-head bearing pillar surface and the sliding surface of the surrounding cross-shoe log house.

25 Opfindelsen har til formål at opnå størst mulig grad af driftsikkerhed for krydshovedlejet med den asymmetriske pind.The invention aims to obtain the highest degree of reliability of the cross-head bearing with the asymmetric stick.

Med henblik herpå er krydshovedet ifølge opfindelsen ejendommeligt ved, at massen af det første pindafs-30 nit med den tilhørende krydshovedsko er således formindsket og/eller massen af det andet pindafsnit med tilhørende krydshovedsko er således forøget, at massetyngdepunktet for krydshovedpinden med krydshovedskoene er beliggende i det væsentlige ved midten af krydshoved-35 lejet.For this purpose, the crosshead according to the invention is characterized in that the mass of the first stick section with the associated cross head shoe is thus reduced and / or the mass of the second stick section with associated cross head shoe is increased so that the mass center of gravity of the cross head stick with the cross head shoes is increased. essentially at the center of the crosshead-35 bearing.

DK 172977 B1 2DK 172977 B1 2

Med denne Justering af masserne af pindafsnittene med tilhørende krydshovedsko undgås, at den asymmetriske krydshovedpind ved krydshovedets op- og nedovergående bevægelser påvirkes af inertikræfter, som angriber 5 pinden i afstand fra sølemidten og derved kunne fremkalde kanttryk i lejet, dvs. større belastning ved den ene ende af lejet end ved den anden. Sådant kanttryk vil mindske tykkelsen af den ømfindtlige smøreoliefilm ved lejets højest belastede ende med medfølgende lokal 10 overbelastning af lejefladen, forøget varmebelastning og større slidtage. Ved at udforme den asymmetriske krydshovedpind og de hermed forbundne dele, så deres samlede tyngdepunkt er beliggende ved midten af krydsho-vedlejet sikres, at inertikræfterne trods pindens 15 asymmetriske udformning virker ved midten af sølefladen, der følgelig belaster krydshovedets lejeflade på ensartet vis og uden kanttryk.With this Adjustment of the masses of the stick sections with associated cross-head shoes, the asymmetrical cross-head stick at the up and down movements of the cross-head is prevented by inertia forces which attack the stick at a distance from the spool center and thereby produce edge pressure in the bearing, ie. greater load at one end of the bearing than at the other. Such edge pressure will reduce the thickness of the delicate lubricating oil film at the highest loaded end of the bed with the accompanying local 10 overload of the bearing surface, increased heat load and greater wear. By designing the asymmetric cross-head pin and the associated parts so that their total center of gravity is located at the center of the cross-shore bearing, the inertial forces, despite the asymmetrical configuration of the pin 15, act at the center of the column surface, which consequently burdens the bearing surface of the cross-head without the uniform surface of the cross-head. .

I en første udførelsesform er massen af det første pindafsnit formindsket ved hjælp af en centralt for-20 løbende boring, der udover at være fremstillingsmæssigt enkel at udføre også indebærer den fordel, at materialet i pindafsnittet ligger i afstand fra pindens længdeakse, så pinden bevarer størstedelen af sin stivhed.In a first embodiment, the mass of the first stick section is reduced by means of a centrally extending bore which, in addition to being simple to carry out, also has the advantage that the material in the stick section is spaced from the longitudinal axis of the stick, so that the stick retains most of the of its stiffness.

1 en anden udførelsesform har det første pindafsnit 25 over en del af sin længde mindre diameter end det andet pindafsnit, hvilket kan realiseres ved enten at mindske diameteren af det første afsnit eller at øge diameteren af det andet afsnit, og sidstnævnte foretrækkes i de tilfælde, hvor pinden skal have stor stivhed.In another embodiment, the first pin section 25 has a portion of its length smaller in diameter than the second pin section, which can be realized by either decreasing the diameter of the first section or increasing the diameter of the second section, and the latter being preferred in those cases. where the stick must have great rigidity.

30 I en tredje udførelsesform har krydshovedskoen på det første pindafsnit mindre masse end krydshovedskoen på det andet pindafsnit. Ved at foretage afbalanceringen ved tilpasning af krydshovedskoenes masser kan selve krydshovedpinden fremstilles på sædvanlig vis.In a third embodiment, the cross-head shoe on the first stick section has less mass than the cross-head shoe on the second stick section. By balancing it by adjusting the mass of the cross-head shoes, the cross-head pin itself can be made in the usual way.

3 DK 172977 B13 DK 172977 B1

Eksempler på udførelsesformer for krydshovedet Ifølge opfindelsen forklares herefter nærmere med henvisning til den meget skematiske tegning, hvor fig. 1 viser et længdesnit gennem en cylinderenhed 5 med et krydshoved ifølge opfindelsen, fig. 2 et snit efter linien II-II i fig. 1 gennem krydshovederne i to sammenhørende nabocylindre, og fig. 3 og 4 længdesnit gennem krydshovedpinden for henholdsvis en anden og en tredje udførelsesform ifølge 10 opfindelsen.Examples of embodiments of the crosshead According to the invention will now be explained in more detail with reference to the very schematic drawing, in which fig. 1 is a longitudinal section through a cylinder unit 5 with a crosshead according to the invention; FIG. 2 is a sectional view taken along line II-II of FIG. 1 through the crossheads of two adjacent neighboring cylinders; and FIG. 3 and 4 are longitudinal sections through the cross head pin for a second and a third embodiment according to the invention, respectively.

I fig. 1 ses en krumtapbugt 1 på en krumtapaksel i en stor langsomtgående V-motor af krydshovedtypen, der eksempelvis kan være en fremdrivningsmotor i et skib eller en kraftproducerende stationær motor. Krumtap-15 bugten har en plejlstangssøle 2, hvorpå to ensdannede plej Istænger 3 er lejret side om side. Plejlstængerne fører op til hvert sin sæt af krydshoved 4, stempelstang 5 og stempel 6 i to sammenhørende nabocylindre, der ligger mellem to tvsrvægge 7 og 8 i motorstativet 20 beliggende mellem bundrammen og cylinderpartiet.In FIG. 1, a crank bay 1 is seen on a crankshaft in a large cross-head type slow-moving V engine, which may be, for example, a propulsion engine in a ship or a power-producing stationary engine. The crankshaft bay has a connecting rod column 2, on which two identical-shaped groove bars 3 are mounted side by side. The connecting rods lead to each set of crossheads 4, piston rod 5 and piston 6 in two adjacent neighboring cylinders, located between two TV walls 7 and 8 of the motor frame 20 located between the bottom frame and the cylinder portion.

Tværvæggene 7, 8 er plane og gennemgående i stativets tværretning for at give dette stor stivhed.The transverse walls 7, 8 are planar and continuous in the transverse direction of the frame to give this high stiffness.

Tværvæggene kan være enkeltlags afstivede pladevægge eller rammeprofiler opbygget af profil- og pladestykker.The cross-walls can be single-layer stiffened sheet metal walls or frame profiles made of profile and sheet pieces.

25 Styreplaner 9 for krydshovederne er fastgjort til tværvæggene, eksempelvis ved hjælp af svejsning og et passende antal stivere 10 på styreplanernes bagsider.The control heads 9 for the cross heads are attached to the transverse walls, for example by means of welding and a suitable number of struts 10 on the backs of the control planes.

Styreplanerne strækker sig over stort set hele motorstativets højde og står således skråt i forhold til 30 stativets langsgående centerplan, at de forløber parallelt med længdeaksen for den tilhørende cylinderforing 11. Længdeakserne for de to cylinderforinger i et par af nabocylindre danner en vinkel med vinkelspidsen beliggende i niveau med eller under krumta-35 paksiens længdeakse.The guide planes extend over virtually the entire height of the engine rack and are so inclined with respect to the longitudinal center plane of the stand that they extend parallel to the longitudinal axis of the associated cylinder liner 11. The longitudinal axes of the two cylinder liner in a pair of neighboring cylinders form an angle with the angular tip located in level with or below the longitudinal axis of the crank package.

DK 172977 B1 4DK 172977 B1 4

Da tværvæggene 7, 8 forløber indbyrdes parallelt og vinkelret på motorens længdeakse er afstanden mellem væggene stort set konstant, og da plejlstængerne er anbragt side om side på plej lstangssølen og de to 5 krydshoveder i et par af nabocylindre ligger mellem de samme to tværvægge, ligger krydshovedet nærmere den ene end den anden tværvæg.Since the transverse walls 7, 8 extend parallel to and perpendicular to the longitudinal axis of the motor, the distance between the walls is substantially constant, and as the connecting rods are placed side by side on the connecting rod column and the two 5 cross heads in a pair of neighboring cylinders lie between the same two transverse walls. the crosshead closer to one side than the other.

Krydshovedet 4 omfatter et todelt lejehus, hvis underpart 12 går ud i et med plej Istangen, og hvis 10 overpart 13 har en opad åben gennembrydning, hvorigennem stempelstangen passerer for fastgørelse på en krydsho-vedpind 14, der med en søleafsnit 15 er lejret i lejehuset. Krydshovedpinden bærer to krydshovedsko 16, 17, der glider langs styreplanerne og styrer krydshovedet i 15 motorens tværretning.The crosshead 4 comprises a two-piece bearing housing, the lower part 12 of which extends into the groove housing and the upper part 13 having an upwardly open breakthrough, through which the plunger rod passes for attachment to a cross-hollow pin 14 which is housed in the bearing housing with a sill section 15. . The cross head pin carries two cross head shoes 16, 17 which slide along the guide planes and guide the cross head in the transverse direction of the motor.

Krydshovedpinden 14 har et første pindafsnit 18, der fra søleafsnittets ene ende strækker sig til pindens ene ende, hvor den ene sko 16 er lejret på pinden, og et andet pindafsnit 19, der strækker sig fra søleafsnit-20 tets anden ende hen til pindens anden ende, hvor den anden sko 17 er lejret på pinden. Som følge af krydshovedets beliggenhed nærmest den ene tværvæg har det første afsnit 18 større længde end det andet afsnit 19, så sølefladen eller -afsnittet ligger asymmetrisk i 25 pindens længderetning.The cross head pin 14 has a first pin section 18 extending from one end of the column section to one end of the pin, where one shoe 16 is mounted on the pin, and a second pin section 19 extending from the second end of the column section to the other end of the pin. end where the second shoe 17 is mounted on the stick. Due to the location of the crosshead closest to one transverse wall, the first section 18 has a greater length than the second section 19, so that the column or section lies asymmetrically in the longitudinal direction of the stick.

I den første udførelsesform vist i fig. 1 og 2 har det første pindafsnit 18 en i pindenden udmundende centralt forløbende boring 20, hvis diameter og længde er afpasset således, at pindens massetyngdepunkt 21 30 ligger ved midten af sølefladen. 1 efterfølgende beskrivelse af alternative udførelsesformer anvendes samme henvisningstal som ovenfor for detaljer af samme art.In the first embodiment shown in FIG. 1 and 2, the first peg section 18 has a centrally extending bore 20 which extends into the peg end, the diameter and length of which is adjusted such that the pulp center of gravity 21 30 lies at the center of the column surface. In the following description of alternative embodiments, the same reference numerals as above are used for details of the same kind.

1 den anden udførelsesform vist i fig. 3, er det 35 første pindafsnit 18 over en del 22 af sin længde 5 DK 172977 B1 neddrejet til mindre diameter, hvor dybden og placeringen af den masseformindskende neddrejning er afpasset således, at pindens massetyngdepunkt 21 ligger ved midten af sølefladen. Det er naturligvis også muligt at 5 udføre en del af det andet pindafsnit 19 med større diameter.1 shows the second embodiment shown in FIG. 3, the first peg section 18 over a portion 22 of its length is lowered to smaller diameter, where the depth and position of the mass reducing pivot is adjusted such that the pulp center of gravity 21 is at the center of the column surface. Of course, it is also possible to perform part of the second larger diameter section 19.

I den i fig. 4 viste tredje udførelsesform er det første og det andet pindafsnit udført med ens diameter, men krydshovedskoen 16 på det første afsnit 18 har til 10 gengæld mindre masse end skoen 17 på det andet afsnit 19, så massetyngdepunktet 21' af pinden med tilhørende krydshovedsko ligger ved midten af sølefladen. Den forøgede masse af den anden sko 17 kan tilvejebringes ved, som vist, at øge skoens diameter, men dette med-15 fører, at de tilhørende styreplaner skal ligge i større afstand fra hinanden. Da der kan være produktionsmæssige fordele ved, at alle sammenhørende styreplaner i motorstativet ligger i ens afstand fra hinanden, kan masseforøgelsen på den anden sko alternativt frembringes ved, 20 at en eller flere separate vægte monteres på skoen, eksempelvis ved fastgørelse mellem de glidefladebærende arme i positioner over og/eller under det centrale lejringsafsnit på skoen.In the embodiment shown in FIG. 4, the first and second stick sections are made of equal diameter, but the cross-head shoe 16 on the first section 18, in turn, has less mass than the shoe 17 on the second section 19, so that the center of mass 21 'of the stick and associated cross-head shoe is at the middle of the lake surface. The increased mass of the second shoe 17 can be provided by, as shown, increasing the diameter of the shoe, but this causes the associated control planes to be at a greater distance from each other. Alternatively, since there may be production benefits that all associated control planes in the motor stand are spaced apart, the mass increase on the other shoe may alternatively be caused by one or more separate weights being mounted on the shoe, for example by attachment between the sliding bearing arms in the shoe. positions above and / or below the central bearing section of the shoe.

Når længderne af det første og det andet pindafsnit 25 18, 19 i en konkret motor er fastlagt ud fra afstanden mellem tværvæggene 7, 8 og længden og placeringen af søleafsnittet 15, kan tyngdepunktet af krydshovedpinden og de af denne bårne elementer bestemmes, og ved hjælp af helt almindelige massemomentberegninger kan størrel-30 sen og placeringen af de masseforøgende eller -formindskende tiltag ifølge opfindelsen bestemmes, så tyngdepunktet af krydshovedpinden med tilhørende elementer bringes til at ligge ved midten af krydshoved-lejet.When the lengths of the first and second pin sections 25, 18, 19 of a concrete motor are determined from the distance between the transverse walls 7, 8 and the length and position of the column section 15, the center of gravity of the cross-head pin and the members of this support can be determined and By ordinary mass torque calculations, the size and location of the mass increasing or decreasing measures of the invention can be determined so that the center of gravity of the cross head pin and associated elements is placed at the center of the cross head bearing.

"i 6 DK 172977 B1"in 6 DK 172977 B1

Det er klart, at de ovennævnte udførelsesformer kan kombineres for opnåelse af den ønskede placering af massetyngdepunktet. Hvis krydshovedplnden er forsynet med oliefordelingskanaler for smøring af styreplanerne, 5 kan diameteren på boringen i det første pindafsnit øges så meget som oliefordelingen tillader, og en eventuel restubalance kan fjernes med en forholdsvis begrænset øgning af massen af det andet pindafsnit og/eller den anden krydshovedsko.It is to be understood that the above embodiments may be combined to obtain the desired location of the center of mass. If the crosshead plinth is provided with oil distribution channels for lubricating the guide planes, 5 the diameter of the bore in the first stick section may be increased as much as the oil distribution allows, and any residual imbalance may be removed with a relatively limited increase in the mass of the second stick section and / or the second cross head shoe. .

ψψ

Claims (4)

1. Krydshoved (4) til en stor totakts V-motor af krydshovedtypen med cylindrene arrangeret i to rækker og med tværgående afstivning (7, 8), som bærer styrepla- 5 ner (9) for krydshoveder i par af sammenhørende nabocylindre beliggende i hver sin række, hvor de to til et cylinderpar hørende plejIstænger (3) er lejret side om side på en fælles plejlstangssøle (2), og hvor sølefladen (15) på en krydshovedpind (14) ligger således 10 asymmetrisk i pindens længderetning, at et første pindafsnit (18), som forbinder sølefladen med den ene krydshovedsko (16), har større længde end et andet pindafsnit (19), som forbinder sølef laden med den anden krydshovedsko (17), kendetegnet ved, at 15 massen af det første pindafsnit (18) med den tilhørende krydshovedsko er således formindsket og/eller massen af det andet pindafsnit (19) med tilhørende krydshovedsko er således forøget, at massetyngdepunktet (21; 21") for krydshovedpinden (14) med krydshovedskoene (16, 17) er 20 beliggende i det væsentlige ved midten af k ryd s hoved-lejet.1. Cross head (4) for a large two-stroke cross-head V-type engine with the cylinders arranged in two rows and with transverse stiffener (7, 8) supporting cross heads (9) for cross heads in pairs of adjacent neighboring cylinders located in each its row, wherein the two connecting rods (3) of a cylinder pair (3) are mounted side by side on a common connecting rod column (2), and where the column surface (15) of a cross head pin (14) lies asymmetrically in the longitudinal direction of the stick, that a first pin section (18) connecting the mud surface to one cross head shoe (16) has a greater length than a second stick section (19) connecting the mud bar to the second cross head shoe (17), characterized in that the mass of the first stick section ( 18) with the associated cross-head shoe is thus reduced and / or the mass of the second stick section (19) with associated cross-head shoe is increased such that the mass center of gravity (21; 21 ") of the cross-head stick (14) with the cross-head shoes (16, 17) is located end essentially at the center of the clear head main bearing. 2. Krydshoved (4) ifølge krav 1,kendetegnet ved, at det første pindafsnit (18) har en centralt forløbende boring (20), som formindsker afsnittets masse 25. forhold til det andet pindafsnit (19).Cross head (4) according to claim 1, characterized in that the first stick section (18) has a centrally extending bore (20) which reduces the mass 25 of the section relative to the second stick section (19). 3. Krydshoved (4) ifølge krav 1, kendetegnet ved, at det første pindafsnit (18) over en del (22) af sin længde har mindre diameter end det andet pindafsnit.Cross head (4) according to claim 1, characterized in that the first stick section (18) over a part (22) of its length has a smaller diameter than the second stick section. 4. Krydshoved (4) ifølge krav 1,kendetegnet 30 ved, at krydshovedskoen (16) på det første pindafsnit har mindre masse end krydshovedskoen på det andet pindafsnit (17). »Cross head (4) according to claim 1, characterized in that the cross head shoe (16) on the first stick section has less mass than the cross head shoe on the second stick section (17). »
DK199301021A 1993-09-13 1993-09-13 crosshead DK172977B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DK199301021A DK172977B1 (en) 1993-09-13 1993-09-13 crosshead
KR1019960700017A KR100310085B1 (en) 1993-09-13 1994-09-09 Cross stroke for 2-stroke V-engine
PCT/DK1994/000336 WO1995008066A1 (en) 1993-09-13 1994-09-09 A crosshead for a two-stroke v-engine
JP50891595A JP3212610B2 (en) 1993-09-13 1994-09-09 Crosshead for 2-stroke V-type engine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK102193 1993-09-13
DK199301021A DK172977B1 (en) 1993-09-13 1993-09-13 crosshead

Publications (3)

Publication Number Publication Date
DK102193D0 DK102193D0 (en) 1993-09-13
DK102193A DK102193A (en) 1995-03-14
DK172977B1 true DK172977B1 (en) 1999-11-01

Family

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Application Number Title Priority Date Filing Date
DK199301021A DK172977B1 (en) 1993-09-13 1993-09-13 crosshead

Country Status (4)

Country Link
JP (1) JP3212610B2 (en)
KR (1) KR100310085B1 (en)
DK (1) DK172977B1 (en)
WO (1) WO1995008066A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
UA61980C2 (en) * 2000-06-15 2003-12-15 Ihor Olehovych Kyryliuk Opposite internal combustion engine
KR100797129B1 (en) * 2000-09-25 2008-01-22 베르트질레 슈바이츠 악티엔게젤샤프트 Cross-head sliding shoe
EP1881255A3 (en) * 2006-07-18 2009-01-07 Wärtsilä Schweiz AG Hub holder for the shaft of a reciprocating combustion machine
IT1391112B1 (en) * 2008-09-29 2011-11-18 Nuovo Pignone Spa HANDLING FOR AN ALTERNATIVE COMPRESSOR

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4003468C2 (en) * 1990-02-06 2000-10-12 Deutz Ag Connecting rods for reciprocating internal combustion engines with an asymmetrical shaft cross section
DK169846B1 (en) * 1992-12-09 1995-03-13 Man B & W Diesel Gmbh Cross-head type V-motor
DK169826B1 (en) * 1992-12-09 1995-03-06 Man B & W Diesel Gmbh Cross head type piston engine

Also Published As

Publication number Publication date
JPH09502500A (en) 1997-03-11
KR960704169A (en) 1996-08-31
DK102193A (en) 1995-03-14
JP3212610B2 (en) 2001-09-25
KR100310085B1 (en) 2001-12-15
WO1995008066A1 (en) 1995-03-23
DK102193D0 (en) 1993-09-13

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