WO1996030159A1 - Procede de fabrication de chemise de cylindre pour moteur a pistons et chemise de cylindre - Google Patents

Procede de fabrication de chemise de cylindre pour moteur a pistons et chemise de cylindre Download PDF

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Publication number
WO1996030159A1
WO1996030159A1 PCT/DK1996/000125 DK9600125W WO9630159A1 WO 1996030159 A1 WO1996030159 A1 WO 1996030159A1 DK 9600125 W DK9600125 W DK 9600125W WO 9630159 A1 WO9630159 A1 WO 9630159A1
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WO
WIPO (PCT)
Prior art keywords
liner
wave
rolling
piston
troughs
Prior art date
Application number
PCT/DK1996/000125
Other languages
English (en)
Inventor
Peter Allan Brandt
Original Assignee
Man B & W Diesel A/S
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 A/S filed Critical Man B & W Diesel A/S
Priority to JP8528810A priority Critical patent/JPH11502470A/ja
Priority to PL96322530A priority patent/PL181683B1/pl
Priority to GB9719143A priority patent/GB2313074B/en
Publication of WO1996030159A1 publication Critical patent/WO1996030159A1/fr
Priority to NO19974485A priority patent/NO317176B1/no

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P9/00—Treating or finishing surfaces mechanically, with or without calibrating, primarily to resist wear or impact, e.g. smoothing or roughening turbine blades or bearings; Features of such surfaces not otherwise provided for, their treatment being unspecified
    • B23P9/02—Treating or finishing by applying pressure, e.g. knurling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/18—Other cylinders
    • F02F1/20—Other cylinders characterised by constructional features providing for lubrication
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P9/00—Treating or finishing surfaces mechanically, with or without calibrating, primarily to resist wear or impact, e.g. smoothing or roughening turbine blades or bearings; Features of such surfaces not otherwise provided for, their treatment being unspecified
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B39/00—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor
    • B24B39/02—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor designed for working internal surfaces of revolution
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F2007/0097—Casings, e.g. crankcases or frames for large diesel engines

Definitions

  • a method of manufacturing a cylinder liner for a piston engine, and a cylinder liner is a method of manufacturing a cylinder liner for a piston engine, and a cylinder liner.
  • the present invention relates to a method of manufacturing a cylinder liner for a piston engine, such as a large two-stroke crosshead engine, in which the running surface for the piston rings on the inner surface of the liner is established first by cutting a wave pattern having a difference in levels between the wave crests and troughs of at least 0.005 mm into the inner surface with at least one cutting tool having a curved cutting edge and then by removing the wave crests from the pattern, at least in the running surface closest to the piston top dead centre position, so that in longitudinal section the inner surface of the finished liner has a partially wave-shaped surface in which the wave troughs are separated by substantially plane areas.
  • German patent No. 683262 describes a cylinder liner manufactured by a method of this kind where the wave crests in the wave pattern is removed by honing the inner surface of the liner. This method requires a shift from one machining device cutting the wave pattern into the inner surface, to a new set-up in a honing machine. Besides, honing in itself is a costly and time- consuming machining, in which a head with several rotating honing stones are passed along through the liner while it rotates so that the honing stones grind away the material in the wave crests. Particularly in case of larger cylinder liners, the honing equipment is costly to acquire.
  • Swiss patent No. 342409 describes a cylinder liner in which the running surface for the piston rings is established on the inner surface of the liner by cutting a wave-shaped pattern into the inner surface. Such a liner is called wave cut, and the pattern is usually helical, the cutting tool being fed in the longitudinal direction of the liner at a certain rate while the liner is rotated.
  • An advantage mentioned by the Swiss patent is that the grooves collect lubricating oil so that oil pockets appear which promote lubrication between the piston rings and the inner surface of the liner.
  • This wave cutting of the inner surface of the liner in a wave pattern which is coherent in the longitudinal direction of the liner provides the manufacturing advantage that honing of the inner surface is avoided, because the wave cutting machines the liner to the desired internal diameter dimension.
  • the piston rings will abrade the wave crests so that plane areas appear between the wave troughs, but the piston rings are at the same time worn down.
  • Danish patent No. 139111 describes a cylinder liner having in its inner surface a helically cut groove in which the pitch of the helical shape is so large that the wave troughs are separated by plane areas having a length L of, for example, 4 mm in the longitudinal direction of the cylinder.
  • this liner Before the groove is cut, this liner has to be honed, which renders the liner expensive to manufacture, because it first has to be machined to its approximate final internal dimension in one set-up, and then it has to be set up in a honing machine and be honed, and then again relocated to the first set-up for cutting of the groove.
  • Cylinder liners for large engines are heavy components which it is time- consuming to relocate and set up in machining equipment.
  • JP-A 5-65849 describes a cylinder block for a piston engine, in which the cylinder after boring is subjected to a honing operation creating grinding marks or grooves in a waffle pattern. These grinding marks include small sharp projections which can cause damage to the piston rings. In order to prevent this the inner side of the cylinder is burnished by several rolling tools. Such a burnishing operation smoothening out small projections on a cylindrical surface is a well known process.
  • the cylinder block described in this Japanese document must also be relocated between several set-ups in different machines.
  • the object of the invention is to provide a method of manufacturing cylinder liners with the advantageously broken wave pattern in such a way that the costly honing equipment can be avoided and that the handling of the liner is facilitated, and the time consumed by its manufacture is reduced.
  • the method according to the invention is characterized in that the cylinder liner has an internal diameter in the interval from 25 cm to 100 cm and a length in the interval from 100 cm to 400 cm, that the wave crests are removed, without using honing, by plastic compression of at least 0.004 mm of their heigth into said substantially plane areas, and that the bottom of the wave troughs after the compres ⁇ sion is at a level at least 0.001 mm lower than these areas .
  • the plastic compression can be made by a technical- ly uncomplicated process to be performed with relatively simple and cheap equipment and the very large liners can be held in one and the same set-up while the wave pattern is cut into the inner side of the liner and the wave crests are compressed into the substantially plane areas.
  • the investments in honing equipment is saved, said equipment being very expensive for liners of this large size.
  • the inner surface of the liner achieves a surface character which is very favourable to the running-in of liner and piston rings.
  • the rolled surface is free from sharp projections, but on the other hand is not completely smooth or mirror- bright, which might cause problems to the lubrication between liner and piston rings.
  • the plastic compression of the wave crests may be performed, for example, by means of rolling with a small rolling tool which is preferred because the equipment for this is the most simple.
  • rolling may be performed by means of a single roller extending along the full length of the liner.
  • the mentioned limits on the heights of the wave-shaped surface are particularly advantageous to a wave-shaped pattern which, before rolling, has a difference in levels between wave troughs and crests of 0.01 - 0.02 mm.
  • the wave pattern is cut into the inner surface of the liner by said at least one cutting tool which is advanced in the longitudinal direction of the liner by a boring bar at a feed rate while the liner is rotated so that the wave pattern is formed as at least one spiral cut, and the plastic compression is carried out by rolling the inner surface with a rolling tool which is moved forward by the same boring bar as the cutting tool. This avoids time-consuming relocation of the cylinder liner from one set-up in one machine to a set-up in another machine.
  • the boring bar When the spiral cut has been cut in the inner surface of the liner, the boring bar may be run out of the liner and the rolling tool be mounted, whereupon the boring bar is reinserted into the liner and the rolling is performed.
  • the cutting and rolling tools may also be mounted in respective cross slides or in respective holders so that a proper change of tools may be replaced by running the tools back or forth in relation to the inner surface of the liner according to need.
  • the boring bar with the cutting tool is adapted to adjust the cutting depth of the cutting tool by radial displacement of the tool, and therefore the rolling pressure may suitably be adjusted by displacement of the rolling tool in the radial direction of the liner so that the existing adjustment options of the boring bar are exploited.
  • the rolling may also be performed with a rolling tool having several rollers mounted in a tool head, which is known from the rolling of the inner surface of pipes, but such a tool is most suited for relatively small pipe diameters where the pipe diameter is con ⁇ stant.
  • the plastic compression is performed by rolling with a rolling tool having a single roller, the radial position of which in relation to the inner surface of the liner can be adjusted, and which can be moved forward in the longitudinal direction of the liner while the liner is being rotated.
  • This enables the same tool to be used for rolling of liners with different internal diameters.
  • the use of a single roller also allows the rolling pressure to be adjusted very accu ⁇ rately by radial displacement of the roller so that excessive rolling down of the wave pattern is avoided. If several rollers are used, a simultaneous control of the rollers must be performed within narrow limits, which may be difficult, particularly because varying forces on one roller can be transmitted to the other roller (s) .
  • the rolling tool is associated with an indicator for the current rolling pressure so that the rolling pressure can be monitored and possibly be finely adjusted during the rolling of the inner surface.
  • Cylinder liners are often manufactured in series for a single engine or for several engines of the same size, and in such a serial manufacture, the indicator can also be used to re-apply experience on a suitable rolling pressure for a specific size of cylinder liner and to adjust the rolling tool at the initial rolling of a liner.
  • the cutting of the wave-shaped pattern may be performed at a tolerance of the cut internal liner diameter of, for example, ⁇ 0.1 - 0.2 mm when the liner diameter is in the interval between 25 and 100 cm.
  • the wave height in the pattern is cut at a much finer tolerance of, for example, ⁇ 0.003 mm or less, because the arc-shaped cutting edge of the tool bit in the cutting tool has a very large radius of, for example, from 100 mm to 800 mm, depending on the internal diameter of the liner and the desired wave height in the pattern, and because the variations in the diameter take place so slowly that neighbouring waves are cut with substantially identical diameters.
  • the rolling tool may suitably maintain the desired rolling pressure at movement of the tool in the longitudinal direction of the liner, although the internal diameter of the liner varies over the length of the liner.
  • the rolling pressure in a very simple tool design may be maintained by the rolling tool being supported by an arm which is bent inwards within its elasticity limit in the radial direction of the liner when the rolling pressure is applied, whereby the arm compensates for the diameter variations by resilience in the radial direction.
  • the rolling tool may be mounted on a cross slide which is continuously adjustable in the radial direction by means of an adjustment drive on the basis of signals from the above indicator for the current rolling pressure.
  • the liner in such a manner that the rolling is only carried out in an upper liner section comprising the area on which the uppermost piston ring slides when the piston is moved from its upper dead centre and part of the piston stroke down- wards towards the bottom dead centre position.
  • the rolling of the inner surface takes place so quickly that no substantial time is gained by limiting the rolling to the upper liner section, but a saving in the rolling equipment may be achieved, particularly in case of very large liners of lengths up to 400 cm, because the boring bar need not be so long.
  • the wave crests may be deformed so by the rolling that the area of the substantially plane areas between the wave troughs constitute from 25 per cent to 75 per cent of the total area of the liner in the rolled area. If the plane areas constitute less than 25 per cent, the contact area to the piston rings becomes too small, which may cause damage to the material of the rings owing to excessive heating, because the heat is not conducted sufficiently away to the liner. An insuffi ⁇ cient contact area may also destroy the pressure-sealing effect of the piston rings. If the plane areas consti ⁇ tute more than 75%, the lubricating conditions (the tribological conditions) deteriorate because the oil pockets become too small.
  • the wave crests are deformed so by the rolling that the area of the substantially plane areas between the wave troughs constitute from 40 per cent to 60 per cent of the total liner area in the rolled area.
  • This is a compromise between the contradictory considerations to lubricating conditions and to thermal load and pressure sealing, at the same time providing a suitable distance to the above threshold limits so that a certain manufacturing inaccuracy will not be of vital importance to the operating conditions of the liner.
  • the ability of the piston rings to seal against very high pressures in the combustion chamber can be ensured by deforming the wave crests so by the rolling that the substantially plane area between consecutive wave troughs has an extent in the longitudinal direction of the liner which, within an interval of ⁇ 1 mm, corresponds to a quarter of the ring height of the piston ring having the smallest ring height.
  • each of the piston rings is surrounded by at least two consecutive plane areas, which prevents the pressurized gas above the piston from blowing through the helical groove or trough and down below the piston ring.
  • the wave crests may be deformed so that at least 0.006 mm and at most 0.018 mm, preferably at most 0.015 mm of the height of the wave crests is compressed into the substantially plane areas, and that the bottom of the wave troughs is at a level at least 0.002 mm lower than these areas. If these narrower limits are exceeded locally, it is still possible for the inner surface of the liner to have an acceptable surface.
  • the wave-cut pattern is deformed so that the average radial difference in levels between the provided substantially plane areas and the wave troughs consti- tutes between 7 per cent and 66 per cent of the average difference in levels between the wave crests and the wave troughs in the pattern before the compression, and preferably between 16 per cent and 36 per cent thereof.
  • the invention also relates to a cylinder liner for a piston engine, such as a large two-stroke crosshead engine, having a running surface for the piston rings on the inner surface of the liner, which running surface, at least in the area closest to the piston top dead centre position, has a partially wave-shaped pattern in which the wave troughs are separated by substantially plane areas.
  • This cylinder liner according to the invention is characterized in that it has an internal diameter in the interval from 25 cm to 100 cm and a length in the interval from 100 cm to 400 cm, that the substantially plane areas are rolled surfaces free from sharp projections, that the bottom of the wave troughs is at a level at least 0.001 mm lower than these areas, and that the substantially plane area between consecutive wave troughs has an extent in the longitudi- nal direction of the liner which, within an interval of ⁇ 1 mm, corresponds to a quarter of the ring height of the piston ring having the smallest ring height.
  • the cylinder liner exhibits the above mentioned advantageous properties of the running surface. Examples of the invention will now be explained in further detail below with reference to the very sche ⁇ matic drawing, in which
  • Fig. 1 shows partially a side view, partially a longitudinal section of a cylinder liner
  • Fig. 2 shows a perspective view of a cylinder liner set up in a machining apparatus, partially shown,
  • Fig. 3 is a perspective view of a rolling tool
  • Fig. 4 is a side view of another rolling tool
  • Fig. 5 greatly enlarged, shows a longitudinal section through an inner surface of a cylinder liner, rolled according to the invention
  • Fig. 6 five times enlarged, shows a photo of the inner surface of a wave-cut and partially honed cylinder liner
  • Fig. 7 is a similar photo of a cylinder liner which has been wave-cut and rolled according to the invention
  • Fig. 8 is a copy of a roughness measurement made on the liner inner surface shown in Fig. 6, and
  • Fig. 9 is a copy of a roughness measurement made on the liner inner surface shown in Fig. 7.
  • Fig. 1 shows a cylinder liner 1 for a large two- stroke crosshead engine.
  • the cylinder liner may be manufactured in various sizes with internal diameters typically in the interval from 25 cm to 100 cm, and corresponding typical lengths in the interval from 100 cm to 400 cm.
  • the liner is normally manufactured from cast iron, and it may be cast integrally or be divided in two parts joined together end to end.
  • the liner half shown to the right of the longitudinal axis 2 is shown in a longi ⁇ tudinal section.
  • the liner may be mounted in the engine, not shown, by positioning an annular, downward-facing surface 3 on the top plate of the engine frame box or cylinder block, whereupon a piston 4 with piston rings 5 is mounted in the cylinder, and a cylinder cover is arranged on top of the liner on its annular upward-facing surface 6 and is clamped to the top plate.
  • the piston rings 5 slide along the inner surface of the liner 7, and it is therefore important that the inner surface has a structure which ensures good lubrication between the rings and the inner surface so as to avoid scuffing or seizure between outer sides of the rings and the inner surfaces of the liner.
  • the structure of the surface is of particularly great importance.
  • the pattern can also be machined in an upper section only of the liner, such as the section being swept by the piston rings 5 in the first 40 per cent of the downward piston stroke.
  • the section may also have other relative sizes, such as 20 per cent, 25 per cent, 30 per cent or 35 per cent or intermediate values.
  • the machining of the inner surface 7 of the liner is finished. This takes place in a very large boring machine designed as a kind of lathe of heavy dimensions, only partially shown in Fig. 2.
  • the machine is referred to as a lathe.
  • the liner with horizontal longitudinal axis is lifted and centred in relation to the rotational axis of the lathe, whereupon one end of the liner is clamped to the driving spindle of the lathe by means of four chucks 9, while the other end of the liner is supported in a centred position by a holder 10 having several supporting rollers 11 which run on the outer surface of the liner.
  • the holder 10 is displaceable on the lathe bed 12.
  • the lathe At the end opposite to the spindle, the lathe has a saddle, not shown, which supports a very heavy and rigid boring bar 13, which is moved by the displacement of the saddle on the lathe bed into or out of the cylinder liner coaxially with its longitudinal axis.
  • the boring bar At the end nearest the spindle, the boring bar has a tool holder 14 in the form of a cross slide capable of adjusting a tool 15 in the radial direction of the liner.
  • the spindle with the liner is made to rotate, and the inner surface 7 is coarse-turned at an accuracy of, for example, 5 mm to the diameter. Then fine turning is performed with a tool bit having a curved cutting edge so that the cut produces the desired shape of the wave troughs in the wave-cut pattern in the inner surface of the liner produced by the fine turning.
  • the distance S (Fig. 5) between two consecutive wave crests is adjusted as desired by means of the forward feed in the longitudinal displacement of the boring bar, the distance being of the same length as the feed rate.
  • a feed rate of 8 mm per revolution of the cylinder liner may be suitable, while a feed rate of 4 mm may be selected for a cylinder liner of an internal diameter of 50 cm or less.
  • the pitch may be selected to correspond to half the ring height of the ring with the smallest ring height among those of the piston.
  • the radial difference in levels h (Fig. 5) between the wave crests and troughs is determined by the curva ⁇ ture of the edge of the tool bit, as a stronger curva ⁇ ture provides a larger difference in levels.
  • the difference in levels may be as large as 0.06 mm, but normally from 0.01 to 0.02 mm is preferred.
  • the boring bar is run out of the liner, and a rolling tool is positioned radially in relation to the inner surface 7, whereupon the inner surface is rolled so that the material in the wave crests is deformed plastically, i.e., pressed radially outwards so that the finished inner surface obtains the shape shown in Fig. 5 with a helical groove or wave trough 17.
  • the longitudinal section in the inner surface of the liner, shown in Fig. 5, is distorted for the sake of clarity so that the dimensions in the radial direction are enlarged many times.
  • the wave troughs are separated by plane areas 18, together constituting 25-75 per cent, and typically 40-60 per cent, of the liner length with the wave-shaped pattern.
  • the rolling tool may comprise a roller 19, which is rotatably mounted in a forked head 20 at the end of a cross arm 21 fixed in a recess in a tool holder 22 which is supported by the boring bar 13.
  • the tool holder or the tool itself may have a certain limited flexibility in the radial direction of the liner so that variations of few tenths of millimetres in the diameter of the liner are absorbed as an elastic bending of the holder.
  • the cross arm is adjustable in its longitudinal direction, i.e. in the radial direction of the liner.
  • a roller 23 is embedded unilat- erally in a head 24, and at its back, the roller contacts a supporting roller 25.
  • the head is mounted on an obliquely extending angular portion divided into two parts, 26a and 26b, which are mutually resilient, but maintain the set rolling pressure.
  • An indicator 27 shows the magnitude of the current rolling pressure.
  • the tool may be equipped with an inductive system for measuring the rolling pressure and for making electrical signals which can be used for adjustment purposes or for remote reading.
  • the angular portion is mounted in the tool holder 14 of the boring bar so that the rolling pressure can be adjusted by radial displacement of this tool holder.
  • a tool of this type is commercially available from the German company, W. Hegenscheidt GmbH, Celle, under the type designation EG 14.
  • the rolling pressure indicator may be in-built into the cross slide of the boring bar, the cross slide being influenced by substantially the same radial pressure as the rolling tool.
  • the lathe may also have a display with, for example, digital display of the displacement of the cross slide in the radial and axial directions, respectively. Such a display may be reset when the rolling tool is arranged in force-less contact with the inner surface of the liner, whereupon the outward displacement of the cross slide will be representative of the rolling pressure.
  • the longitudinal axis of the roller may form a free angle with the inner surface of the liner, where the apex of the angle faces forwards in the feed direction shown by the arrow A.
  • the adjustment of the cross slide does not entail a corre ⁇ sponding radial displacement of the rolling tool, as a substantial part of the displacement is used for pressure-loading the cross slide, the tool holder and the tool, i.e. to build up the rolling pressure.
  • This is a substantial difference from the setting of the cutting tools normally used in a lathe.
  • Fig. 6 shows clear annular grinding marks or grooves from the honing, and the roughness test in Fig.
  • the rolled surface shown in Fig. 7 has a consider ⁇ able nicer appearance, and the roughness test in Fig.
  • the surface locally has large depressions not included in the dimensions, as these are typically graphite deposits in the surface or similar variations determined by the alloy. These depressions are also present in the substantially plane areas which may also be called plateau areas.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Drilling And Boring (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

La présente invention concerne une chemise (1) de cylindre destinée à un moteur à pistons du type d'un gros moteur deux temps à crosse, la chemise étant pourvue sur sa face intérieure (7) d'une surface de déplacement des segments de piston. Le diamètre intérieur de la chemise du cylindre est compris entre 25cm et 100cm, et sa longueur entre 100cm et 400cm. Le procédé de réalisation de la surface de déplacement consiste d'abord à usiner dans la surface interne une forme en ondulation dont la différence de niveaux (h) entre crêtes et creux d'ondulation est d'au moins 0,005mm. Pour obtenir cette forme, on utilise un outil de coupe présentant un bord de coupe curviligne. Les crêtes d'ondulation subissent ensuite une atténuation d'au moins 0,004mm de leur hauteur, sans pré-rodage, par compression plastique. On obtient ainsi des zones sensiblement planes (18), le fond des creux d'ondulation (17) se retrouvant après compression à un niveau d'au moins 0,001mm inférieur par rapport à ces zones. En coupe longitudinale, la face intérieure (7) de la chemise achevée présente une surface de forme partiellement ondulée dans laquelle les creux d'ondulation (17) sont séparés les uns des autres par des zones sensiblement planes (18).
PCT/DK1996/000125 1995-03-30 1996-03-27 Procede de fabrication de chemise de cylindre pour moteur a pistons et chemise de cylindre WO1996030159A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP8528810A JPH11502470A (ja) 1995-03-30 1996-03-27 ピストンエンジン用のシリンダライナーの製造方法及びシリンダライナー
PL96322530A PL181683B1 (pl) 1995-03-30 1996-03-27 Sposób wytwarzania tulei cylindrowej do silnika tlokowego PL PL PL
GB9719143A GB2313074B (en) 1995-03-30 1996-03-27 A method of manufacturing a cylinder liner for a piston engine, and a cylinder liner and piston assembly
NO19974485A NO317176B1 (no) 1995-03-30 1997-09-29 Fremgangsmate for fremstilling av en sylinderfôring for en stempelmotor, og en sylinderfôring

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK0343/95 1995-03-30
DK199500343A DK174089B1 (da) 1995-03-30 1995-03-30 Fremgangsmåde til fremstilling af en cylinderforing til en stempelmotor, og en cylinderforing

Publications (1)

Publication Number Publication Date
WO1996030159A1 true WO1996030159A1 (fr) 1996-10-03

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Application Number Title Priority Date Filing Date
PCT/DK1996/000125 WO1996030159A1 (fr) 1995-03-30 1996-03-27 Procede de fabrication de chemise de cylindre pour moteur a pistons et chemise de cylindre

Country Status (11)

Country Link
JP (2) JPH11502470A (fr)
KR (1) KR100252525B1 (fr)
CN (1) CN1084657C (fr)
DK (1) DK174089B1 (fr)
ES (1) ES2151329B1 (fr)
GB (1) GB2313074B (fr)
HR (1) HRP960145B1 (fr)
NO (1) NO317176B1 (fr)
PL (1) PL181683B1 (fr)
RU (1) RU2162397C2 (fr)
WO (1) WO1996030159A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007109766A2 (fr) * 2006-03-22 2007-09-27 The Timken Company Procédé de production d'une chemise de cylindre en acier
EP2157304A1 (fr) * 2008-08-18 2010-02-24 Wärtsilä Schweiz AG Procédé d'usinage destiné à produire une surface de roulement sur une paroi de cylindre d'une chemise de cylindre d'un moteur à combustion interne
CN102139841A (zh) * 2011-02-27 2011-08-03 山东能源机械集团有限公司 装配不锈钢套的液压支架千斤顶及不锈钢套装配方法
RU2459694C2 (ru) * 2010-07-08 2012-08-27 Федеральное государственное образовательное учреждение высшего профессионального образования "Ульяновская государственная сельскохозяйственная академия" Способ электромеханического восстановления деталей прецизионных сопряжений
WO2013178247A1 (fr) 2012-05-29 2013-12-05 Chris-Marine Ab Chemise de cylindre et procédé d'amélioration de la distribution de l'huile dans une chemise de cylindre
RU2514238C1 (ru) * 2012-11-29 2014-04-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Ульяновская государственная сельскохозяйственная академия имени П.А. Столыпина" Способ электромеханического восстановления детали
EP3184212A3 (fr) * 2015-12-21 2017-11-29 Pratt & Whitney Canada Corp. Procédé de calibrage d'une cavité dans une partie
US11111874B2 (en) 2016-11-15 2021-09-07 Daimler Ag Cylinder housing for a reciprocating-piston internal combustion engine
CN113721547A (zh) * 2021-08-27 2021-11-30 中原内配集团安徽有限责任公司 一种气缸套加工刀具补偿控制系统
US20210370374A1 (en) * 2020-05-29 2021-12-02 Beckett Thermal Solutions Burnishing machine

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KR100805456B1 (ko) * 2005-10-12 2008-02-20 크리스-마린 에이비 실린더 라이너의 내부 가공장치 및 가공방법
US20120251256A1 (en) * 2011-04-04 2012-10-04 GM Global Technology Operations LLC Cutting tool for control of surface roughness
EP2515010B1 (fr) * 2011-04-21 2016-09-28 Caterpillar Motoren GmbH & Co. KG Traversée à extrémité réduite, piston et système de traversée/piston
CN104607889B (zh) * 2015-01-13 2017-01-04 哈尔滨飞机工业集团有限责任公司 一种双曲面成型模工装的制造方法
CN106523468A (zh) * 2017-01-04 2017-03-22 河海大学常州校区 一种复合耐磨缸筒及制备方法
CN106523469A (zh) * 2017-01-04 2017-03-22 河海大学常州校区 一种复合耐磨缸筒及制备方法
RU2671027C9 (ru) * 2017-10-12 2018-12-04 Юрий Александрович Макунин Способ обработки поверхности цилиндрических изделий перед нанесением на нее поглощающего вч-энергию материала
PL233272B1 (pl) * 2017-11-28 2019-09-30 () Twórca(Y) Wynalazku Stanislaw Szweda Urządzenie do nagniatania powierzchni wewnętrznych cylindrów siłowników hydraulicznych, zwłaszcza w górniczej obudowie zmechanizowanej
CN108788768B (zh) * 2018-07-05 2023-08-01 宁波亚大自动化科技有限公司 一种智能检验生产线及其使用方法

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007109766A2 (fr) * 2006-03-22 2007-09-27 The Timken Company Procédé de production d'une chemise de cylindre en acier
WO2007109766A3 (fr) * 2006-03-22 2007-11-08 Timken Co Procédé de production d'une chemise de cylindre en acier
EP2157304A1 (fr) * 2008-08-18 2010-02-24 Wärtsilä Schweiz AG Procédé d'usinage destiné à produire une surface de roulement sur une paroi de cylindre d'une chemise de cylindre d'un moteur à combustion interne
RU2459694C2 (ru) * 2010-07-08 2012-08-27 Федеральное государственное образовательное учреждение высшего профессионального образования "Ульяновская государственная сельскохозяйственная академия" Способ электромеханического восстановления деталей прецизионных сопряжений
CN102139841A (zh) * 2011-02-27 2011-08-03 山东能源机械集团有限公司 装配不锈钢套的液压支架千斤顶及不锈钢套装配方法
WO2013178247A1 (fr) 2012-05-29 2013-12-05 Chris-Marine Ab Chemise de cylindre et procédé d'amélioration de la distribution de l'huile dans une chemise de cylindre
RU2514238C1 (ru) * 2012-11-29 2014-04-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Ульяновская государственная сельскохозяйственная академия имени П.А. Столыпина" Способ электромеханического восстановления детали
EP3184212A3 (fr) * 2015-12-21 2017-11-29 Pratt & Whitney Canada Corp. Procédé de calibrage d'une cavité dans une partie
US11111874B2 (en) 2016-11-15 2021-09-07 Daimler Ag Cylinder housing for a reciprocating-piston internal combustion engine
US20210370374A1 (en) * 2020-05-29 2021-12-02 Beckett Thermal Solutions Burnishing machine
CN113721547A (zh) * 2021-08-27 2021-11-30 中原内配集团安徽有限责任公司 一种气缸套加工刀具补偿控制系统

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CN1179741A (zh) 1998-04-22
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NO974485D0 (no) 1997-09-29
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JP2003201910A (ja) 2003-07-18
NO974485L (no) 1997-09-29
PL181683B1 (pl) 2001-09-28
GB2313074B (en) 1998-08-12
GB2313074A8 (en) 1998-01-13
RU2162397C2 (ru) 2001-01-27
ES2151329A1 (es) 2000-12-16
GB2313074A (en) 1997-11-19
HRP960145B1 (en) 2003-06-30
JP4024122B2 (ja) 2007-12-19
KR19980702659A (ko) 1998-08-05
ES2151329B1 (es) 2001-07-01
DK34395A (da) 1995-03-31
KR100252525B1 (ko) 2000-04-15
DK174089B1 (da) 2002-06-10
GB9719143D0 (en) 1997-11-12
HRP960145A2 (en) 1997-08-31
JPH11502470A (ja) 1999-03-02

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