DK178428B1 - Method and device for controlling the supply of lubricant to the cylinder surface of a piston in a piston motor with reciprocating pistons - Google Patents
Method and device for controlling the supply of lubricant to the cylinder surface of a piston in a piston motor with reciprocating pistons Download PDFInfo
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- DK178428B1 DK178428B1 DK200601299A DKPA200601299A DK178428B1 DK 178428 B1 DK178428 B1 DK 178428B1 DK 200601299 A DK200601299 A DK 200601299A DK PA200601299 A DKPA200601299 A DK PA200601299A DK 178428 B1 DK178428 B1 DK 178428B1
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- 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
- F01M1/18—Indicating or safety devices
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- 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
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- 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
- F01M1/16—Controlling lubricant pressure or quantity
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- 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
- F01M2001/083—Lubricating systems characterised by the provision therein of lubricant jetting means for lubricating cylinders
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Actuator (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
Opfindelsen angår en fremgangsmåde og en indretning til styring af tilførslen af smøremiddel til cylinderanlægsfladen (16) for et stempel (6) i en motor (2) med frem- og tilbagegående stempler, især en totaktsstempelmotor. For at forbedre styringen af den mængde smøremiddel, der skal tilføres, overvåges den elektriske strømgennemgang mellem cylindervæggen (4) og stemplet (6), og mængden af tilført smøremiddel reduceres gradvist, så længe strømgennemgangens støjsignaler signalerer afrivning af smøremiddelfilmen på cylinderanlægsfladen (16), hvorefter mængden af tilført smøremiddel forøges til en værdi, ved hvilken støjsignalet forsvinder.The invention relates to a method and a device for controlling the supply of lubricant to the cylinder surface (16) of a piston (6) in a reciprocating piston motor (2), in particular a two-stroke piston motor. In order to improve the control of the amount of lubricant to be applied, the electric current flow between the cylinder wall (4) and the piston (6) is monitored and the amount of lubricant applied is gradually reduced as long as the noise passage signals signal the tearing of the lubricant film on the cylinder system surface (16). whereupon the amount of lubricant added increases to a value at which the noise signal disappears.
Description
Fremgangsmåde οα indretning til sivrina af tilførslen af smøremiddei tii cvlinder-aniægsfiaden for et stempel i en stempeimotor med frem- og tiibaaegående stem-pierA method for adjusting the supply of the lubricant to the cylinder face of a piston in a piston motor with reciprocating pistons
Teknisk områdeTechnical area
Opfindelsen angår en fremgangsmåde iii styring af tilførslen af smøremiddel til cy-linderanlægsfladen for et stempel i en stempeimotor med trem- og tilbagegående stempler, især en totaktsslempelmotor ifølge krav 1, samt en indretning til udøvelse af fremgangsmåden ifølge krav 10.BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to a method iii controlling the supply of lubricant to the cylinder abutment surface of a piston in a piston motor with traction and reciprocating pistons, in particular a two-stroke piston motor according to claim 1, and a device for carrying out the method according to claim 10.
Teknikkens standpunktThe prior art
Ved store stempelmotorer med frem- og tilbagegående stempler, især totakts·· stempelmotorer, som især finder anvendelse i industrien (diesel-elektriske kraftværker) og især i skibsbygningen, består af det problem, at stemplets cylinderanlægsflade i cylinderen skal smøres ved hjælp af et separat tilført smøremiddel.For large piston engines with reciprocating pistons, especially two-stroke ·· piston engines, which are especially applicable in industry (diesel-electric power plants) and especially in shipbuilding, there is the problem that the piston cylinder surface in the cylinder must be lubricated with a separate lubricant applied.
Ved sådanne stempelmotorer med frem- og tilbagegående stempler, hvis cylinder fx vil kunne have en størrelse på indtil en meter og en slaglængde på indtil 3 meter, er det meget vanskeligt at bestemme den nødvendige mængde smøremiddel. Der knytter sig hertil erfaringsværdier, som man forhøjer med 10 ti! 20% for at være på den sikre side. Kendte erfaringsværdier ligger fx på 0,2 tii 0,6 g/kW time. Dette betyder med en middel motorydelse på 30.000 kW et dagsforbrug på 3600 kg. Smøremiddeiforbruget udgør således en ikke uvæsentlig omkostningsfaktor.For such piston engines with reciprocating pistons, whose cylinder, for example, can have a size of up to one meter and a stroke of up to 3 meters, it is very difficult to determine the required amount of lubricant. Experienced values are associated with this, which are increased by 10 ten! 20% to be on the safe side. Known experience values are, for example, 0.2 to 0.6 g / kW hour. This means, with an average power output of 30,000 kW, a daily consumption of 3600 kg. Thus, lubricant consumption is a not insignificant cost factor.
Fra DE-A-33 38 420 og fra WO 00/65205 kendes fremgangsmåder og indretninger til overvågning af smørestederne på store motorer og til allerede fra begyndelsen af skaden at angive afrivning af smøringen og at indlede modforholdsregler. De kendte fremgangsmåder og indretninger beskæftiger sig udelukkende med aksel-lejer. Der kan ikke i denne kendte teknik findes henvisninger til overvågning af cylinderanlægsflader og en eventuel smøremiddeltilførsei.DE-A-33 38 420 and WO 00/65205 disclose methods and devices for monitoring the lubrication points on large engines and to indicate the lubrication of the lubrication from the beginning of the damage and to initiate countermeasures. The known methods and devices deal exclusively with shaft bearings. There are no references in this prior art to monitoring cylinder head surfaces and any lubricant supply.
Fra WO 01/48357 kendes et system hvor en stempeiring er en dei af oliefilmty kkelsesmåling-sekt ion, der også omfatter en forskydnings-transducer og en elektrisk signalbehandlingsenhed. Fra DE 2839839 kendes et system hvori tykkelsen eller tilstedeværelsen af en oliefilm mellem et bevæget stempel og en stationær cylinder måles som funktion af elektrisk modstand ved brug af inducerende ledninger anbragt på stempelringe; hvilke stempelringe er elektrisk isolerede fra stemplet.From WO 01/48357 a system is known in which a piston ring is one of the oil film measurement section which also includes a displacement transducer and an electrical signal processing unit. DE 2839839 discloses a system in which the thickness or the presence of an oil film between a moving piston and a stationary cylinder is measured as a function of electrical resistance using inductive wires arranged on piston rings; which piston rings are electrically insulated from the piston.
Beskrivelse af oofindeisenDescription of the oofindeisen
Opfindelsens formål er at angive en fremgangsmåde og en indretning til styring af tilførslen af smøremiddel til cylinderanlægsfladen for et stempel i en stempelmotor med frem- og tilbagegående stempler, især en totaktsstempelmotor.The object of the invention is to provide a method and a device for controlling the supply of lubricant to the cylinder surface of a piston in a reciprocating piston motor, in particular a two-stroke piston motor.
Denne opgave løses ifølge opfindelsen ved: a) fremgangsmåden ifølge krav 1, og b) indretningen ifølge krav 10, ifølge hvilke krav man overvåger strømgennemgangen ved udnyttelse af en ved hjælp af forskellige materialer for cylinder og stempel frembragt termostrøm.This task is solved according to the invention by: a) the method according to claim 1, and b) the device according to claim 10, according to which the current flow is monitored by utilizing a thermocurrent produced by means of various materials for cylinder and piston.
Derved, at man overvåger en elektrisk strømgennemgang mellem cylindervæggen og stemplet og gradvis reducerer mængden af smøremiddeitilførsien, indtil et støjsignal for strømgennemgangen signalerer afrivning af en smøremiddelfilm på cylinderanlægsfladen, hvorefter man igen forøger mængden af smøremiddeltilførsel til en værdi, ved hvilken støjsignalet er forsvundet, kan man fintfølende taste sig frem til en kritisk mængde af det nødvendige smøremiddel og derved reducere smørem iddeitilførsien til den faktisk nødvendige værdi. Dette betyder en betydelig besparelse af smøremiddel sammenlignet med de hidtidige fremgangsmåder.By monitoring an electric current flow between the cylinder wall and the plunger and gradually reducing the amount of lubricant supply until a noise signal for the flow signal signals tearing of a lubricant film on the cylinder system surface, then increasing the amount of lubricant supply to which value can be added, one senses a critical amount of the necessary lubricant and thereby reduces the lubrication of the idea to the actual value required. This means a considerable saving of lubricant compared to the previous methods.
Fordelagtige udførelsesformer for fremgangsmåden og indretningen er beskrevet i kravene 2 til 9 samt 10 til 13.Advantageous embodiments of the method and device are described in claims 2 to 9 and 10 to 13.
Generelt kan man iade en stempelmotor med frem- og tilbagegående stempler arbejde med den kritiske mængde af et smøremiddel, hvor der ikke mere optræder noget støj sign al. Det er imidlertid mere fordelagtigt, når man i henhold ti! krav 2 forhøjer den kritiske mængde af smøremiddel med en sikkerhedsfaktor. Det er også anbefalelsesværdig! periodisk at gentage fremgangsmåden ifølge krav 3. De bedste resultater opnår man, når man i henhold til krav 4 gennemfører fremgangsmåden ved motorens vedvarende belastning.In general, a piston engine with reciprocating pistons can operate with the critical amount of a lubricant where no noise is present. However, it is more advantageous when one according to ten! claim 2 increases the critical amount of lubricant with a safety factor. It's also recommendable! periodically repeating the method according to claim 3. The best results are obtained when, according to claim 4, the method is carried out at the sustained load of the motor.
Fremgangsmåden kan realiseres på forskellige måder. Særligt foretrukket er udførelsesformen iføige krav 1. hvorefter man overvåger strømgennemgangen ved udnyttelse af en ved hjælp af forskellige materialer for cylinder og stempel frembragt termostrøm. En sådan termostrøm opstår allerede ved de mindste mikroriv-ningssteder mellem cylindervæg og stempel - endnu før der mellem stempel og cyiinderanlægsflade opstår en rivningsbeskadigelse, der skal tages vare på - og ytrer sig ved en elektrisk manifestation som et kortvarigt, såkaldt lynsignai. Det er da fordelagtigt, at man ved signalvurderingen ikke behøver at tage hensyn til overgangsmodstande i den anvendte elektriske strømkreds.The process can be realized in various ways. Particularly preferred is the embodiment according to claim 1, whereby the current flow is monitored by utilizing a thermocurrent produced by means of various materials for cylinder and piston. Such a thermocouple already occurs at the smallest micro-tearing points between the cylinder wall and piston - even before a tear damage to be taken between the piston and the cylinder surface - and manifests itself in an electrical manifestation as a short-term, so-called lightning signal. It is then advantageous that the signal evaluation does not have to take into account transient resistances in the electrical circuit used.
Fremgangsmåden kan understøttes ved anvendelse af en af en strømkilde frembragt elektrisk strøm i henhold til krav 5.The method can be supported by using an electric current generated by a power source according to claim 5.
Fejlkilder for fremgangsmåden er færrest, når strømbanen gennem stempeimoto-ren er så kort som mulig. Det er derfor særlig fordelagtigt, når strømkredsen i henhold til krav 6 dannes via cylindervæggen, stemplet og en stelstang, på hvilken der er anbragt en konnektor, der er tilsluttet strømkredsen. Konnektoren er fortrinsvis dannet ved hjælp af en stopbøsning, der sørger for aftætningen af krumtaprummet mod stemplets underside. Denne udføreisesvariant er især en fordel ved store stempelmotorer, der arbejder efter totaktsprincippet.Error sources for the method are fewest when the current path through the piston engine is as short as possible. It is therefore particularly advantageous when the circuit according to claim 6 is formed via the cylinder wall, the piston and a frame rod, on which is provided a connector connected to the circuit. The connector is preferably formed by means of a stop bushing which provides for the sealing of the crankcase against the underside of the piston. This output variant is especially advantageous for large piston engines operating on the two-stroke principle.
Hvis stempelmotoren ikke har nogen stempelstang, men kun er forbundet med en krumtapaksel via en piej istang, sker tilslutningen til strømkredsen ifølge krav 8 på fordelagtig måde til cylindervæggen og til krumtapakseien.If the piston motor has no piston rod, but is only connected to a crankshaft via a pie rod, the connection to the circuit according to claim 8 is advantageously made to the cylinder wall and to the crankshaft axis.
De i det enkelte tilfælde egnede værdier til styring af smøremiddeltilførslen må tilvejebringes ved forsøg, idet der især også skal tages hensyn til størrelsen af den forstyrrelse eller støj, der kan fremkaldes af andre lejesteder.The values suitable for controlling the lubricant supply in each case must be provided by experiments, taking into account in particular the magnitude of the disturbance or noise that may be caused by other locations.
Yderligere fordele opnås ved fremgangsmåden ifølge krav 8, ifølge hvilket man overvåger støjsignalerne ved overskridelse af et forud defineret grænsekriterium for en begyndende rivningsskade og ved overskridelse af dette grænsekriterium udløser et skadesignal, især kan man i henhold til krav 9 foretage en overvågning ved hver cylinder i en flercy linder indret ning og tilforordne de begyndende rivningsskader til en tilsvarende cylinder.Further advantages are obtained by the method according to claim 8, in which the noise signals are monitored by exceeding a predefined limit criterion for a beginning tearing injury and by exceeding this limit criterion a damage signal is triggered, in particular according to claim 9 a monitoring can be performed at each cylinder in a plurality of liner devices and assign the initial tearing damage to a corresponding cylinder.
Kort beskrivelse af tegningerneBrief description of the drawings
Udførelseseksempler for opfindelsen vil i det følgende blive nærmere beskrevet under henvisning ti! skematiske tegninger, på hvilke: figur 1 viser skemaet for en stempelmotor med frem- og tilbagegående stempler, hvor stemplerne er forsynet med en stempelstang, figur 2 viser skemaet for en stempelmotor med frem- og tilbagegående stempler, hvor stemplerne er forbundet med en krumtapaksel via en plej Istang.Embodiments of the invention will now be described in more detail with reference to FIG. schematic drawings, in which: Fig. 1 shows the diagram of a reciprocating piston motor, the pistons being provided with a piston rod; Fig. 2 shows the schematic of a reciprocating piston motor where the pistons are connected to a crankshaft via a care Istang.
Måder til udøvelse af opfindelsenWays of Carrying Out the Invention
Figur 1 viser et typisk skema for en stempelmotor 2, hvor et stempel 6 kan bevæges op og ned inde i cylinder 4. Stemplet 6 er anbragt på en stempelstang 8, der er forskydeligt lejret i en fast føring 10. Ved det viste eksempel er føringen 10 udformet som stopbøsning, der danner en gasmæssig tætning mellem undersiden af stemplet 6 og mellem undersiden af stemplet 6 og et krumtaprum 11. Den neder-ste ende af stempelstangen 8 er via en med et krydshoved 12 forsynet koblingsled 13 forbundet med en krumtapaksel 14.Figure 1 shows a typical diagram of a piston motor 2 in which a piston 6 can be moved up and down inside cylinder 4. The piston 6 is arranged on a piston rod 8 which is slidably mounted in a fixed guide 10. In the example shown, the guide is 10 is formed as a stop sleeve which forms a gaseous seal between the underside of the piston 6 and between the underside of the piston 6 and a crank 11. The lower end of the piston rod 8 is connected to a crankshaft 14 by means of a crankshaft 12.
Til overvågning af smørefilmen mellem stemplet 6 og cylinderanSægsfladen 16 i cylinderen 4 findes en strømkreds 18, ved hvilken en ledning 20 er forbundet med cylinderen 4's væg, og en yderligere ledning 22 er forbundet med den som kollekter virkende stopbøsning 10 for stempeistangen 8. Med dette formål er stopbøsningen 10 elektrisk isoleret i forhold fil motormassen. Ved en ikke vist yderligere udførelsesform er koilektoren dannet af ei separat kontaktelement, fx ved hjælp af en på stempelstangen 8 anbragt kulbørste.For monitoring the lubrication film between the piston 6 and the cylinder face 16 in the cylinder 4, a circuit 18 is provided, in which a conduit 20 is connected to the wall of the cylinder 4, and a further conduit 22 is connected to the collar stop socket 10 for the piston rod 8. With this purpose, the stop sleeve 10 is electrically insulated relative to the engine mass. In a further embodiment not shown, the coil is formed by a separate contact element, for example by means of a carbon brush applied to the piston rod 8.
Strømkredsen 18 indeholder en modstand 24 og eventuelt en strømkilde 26. Inde i stempeimotoren forløber strømkredsen mellem cylinderen 4’s væg og stemplet 6 samt stempelstangen 8 og føringen 10. Parallelt med modstanden 24 ligger et styreapparat 28, der fastslår strømgennemgangsændringer mellem cylinderen 4 og stemplet 6 via cylinderanlægsfladen 16, hvilke ændringer kan optræde ved begyndende afrivning af smøremiddelfilmen på cylinderaniægsfladen 18. Styreapparatet 28 er via en ledning 30 forbundet med en indretning 32 for tiiførsei af smøremiddel til stempiet 6's cylinderanlægsflade 16. Hertil er en tilsvarende smøremiddelledning 34 tilsluttet cylinderen 4.The current circuit 18 contains a resistor 24 and optionally a power source 26. Inside the piston motor, the current circuit extends between the wall of the cylinder 4 and the piston 6 as well as the piston rod 8 and the guide 10. Parallel to the resistor 24 is a control device 28 which determines current passage changes between the cylinder 4 and the piston 6 via The cylinder 28 is connected via a conduit 30 to a lubricant supply device 32 to the cylinder surface 16 of the piston 6 to which a corresponding lubricant line 34 is connected to the cylinder 4.
For tilvejebringelse af den nødvendige mængde smøremiddel styrer man hensigtsmæssigt stempelmotoren 2 ved vedvarende belastning således, at smøremiddeitil-førslen til indretningen 2 gradvist reduceres, indtil der i strømkredsen 18 optræder et støjsignal, der signalerer den begyndende afrivning af smøremiddelfilmen mellem stempiet 6 og cylinderen 4. Styreapparatet 28 forøger så smøremiddeltilførslen til indretningen 32 ligeledes gradvist, indtil støjsignaiet forsvinder. Den så tilførte smøremiddeimængde er tilstrækkelig til at drive stempelmotøren uden forstyrrelser. For at forøge sikkerheden kan denne mængde forøges med en sikkerhedsfaktor på fx 5%. Den nødvendige smøremiddeimængde undersøges hensigtsmæssigt periodisk igen på denne måde. Ved hjælp af egnet software kan denne overvågning og styring ske fuldautomatisk.To provide the required amount of lubricant, the piston motor 2 is suitably controlled at a sustained load such that the lubricant supply to the device 2 is gradually reduced until a noise signal is signaled in the current circuit 18 which signals the initial tearing of the lubricant film between the piston 6. The controller 28 then gradually increases the lubricant supply to the device 32 until the noise signal disappears. The amount of lubricant so applied is sufficient to operate the piston motor without interference. To increase safety, this amount can be increased by a safety factor of eg 5%. The amount of lubricant required is periodically re-examined in this way. With the help of suitable software, this monitoring and control can be fully automated.
Udførelseseksemplet ifølge figur 2 svarer i det væsentlige til udførelseseksemplet i figur 1, så at samme henvisningsbetegnelser anvendes til de samme dele. I modsætning ti! stempelmotoren 2 i figur 1 har stempelmotoren 2a i figur 2 et stempel 6a, der ved hjælp af en plej Istang 36 er forbundet med en krumtapakse! 14a. Funktionsmåden svarer til den i figur 1, idef dog den længere strømbane i strømkredsen 18a via plejlstangen 36 og krumtapaksel 14a indeholder en større risiko for forstyrrelser eller støj, idet flere iejesteder, der udgør yderligere modstande, skal overvindes. Da sådanne store motorer har en forholdsvis lille omdrejningstal, ville det absolut også være tænkeligt, at ledningen 22 er direkte forbundet med det indre af stemplet 6. Derved ville man få en direkte kontrol af smøremiddelfilmen mellem stemplet 6 og cylinderen 4, og denne kontrol ville indebære den mindste risiko for støj.The embodiment of Figure 2 corresponds substantially to the embodiment of Figure 1, so that the same reference numerals are used for the same parts. Unlike ten! the piston motor 2 of Figure 1, the piston motor 2a of Figure 2 has a piston 6a which is connected to a crankshaft by means of a rod I 36 14a. The mode of operation corresponds to that of Figure 1, however, the longer current path in the circuit 18a via the connecting rod 36 and crankshaft 14a contains a greater risk of disturbance or noise, with several lifting points constituting additional resistances having to be overcome. Since such large motors have a relatively small RPM, it would also be conceivable that line 22 is directly connected to the interior of piston 6. This would provide direct control of the lubricant film between piston 6 and cylinder 4, and this control would involve the least risk of noise.
Ved stempelmotorer med flere stempler er det en fordel, når der for hver cylinder anvendes et særskilt styreapparat og en særskilt indretning for tilførsel af smøremiddel for at sikre en individuel smøring og overvågning af den enkelte cylinder. Det ville også være tænkeligt, at der findes en for alle cylindre fælles indretning til tilførsel af smøremiddel til cylindrene, idet styringen dog sker enkeltvis for hver cylinder, og indretningen er såiedes indstillet, at smørem iddeitiiførsien efterkommer det styreapparat, der signalerer den største smøremiddeimængde.In the case of multi-piston piston motors, it is advantageous when a separate control device and a separate lubricant supply device are used for each cylinder to ensure individual lubrication and monitoring of the individual cylinder. It would also be conceivable that there is a device common to all cylinders for supplying lubricant to the cylinders, however, the control is done individually for each cylinder, and the device is set so that the lubrication id adjusts to the control device which signals the greatest amount of lubricant.
En yderligere anvendelse af den beskrevne indretning består i at erkende driftsskader mellem stempel og cylinder på et så tidligt tidspunkt, at rivning undgås. Man overvåger på hensigtsmæssig måde, når strømgennemgangens støjsignaler overskrider et forudbestemt grænsekriterium, hvilket er karakteristisk for begyndende driftsskader. Driftsskader kan blandt andet erkendes derved, at et optrædende støjsignal ikke kan bringes til at iorsvinde selv ved forøget smøremiddeltilførsel. Alternativt eller som supplement dertil kan den tidsmæssige rate eiler formen for impuisagtige støjsignaler ved overskridelse af i forvejen definerede, navnlig ved forudgående forsøg tilvejebragte grænseværdier, overvåges. Ved overskridelse af grænsekriteriet udløses et skadesignal, der eksempel kan bestå i et optisk eller akustisk alarmsignal eller i et signal til standsning af motoren.A further use of the described device consists in recognizing piston and cylinder operating damage at such an early stage that tearing is avoided. Appropriate monitoring is provided when the power signal noise signals exceed a predetermined limit criterion, which is characteristic of incipient operating damage. Among other things, operational damage can be recognized by the fact that an occurring noise signal cannot be caused to disappear even with increased lubricant supply. Alternatively or in addition thereto, the temporal rate or the form of impulsive noise signals may be monitored by exceeding pre-defined limits, in particular in the case of pre-trial limit values. If the limit criterion is exceeded, a damage signal is triggered, which may for example consist of an optical or acoustic alarm signal or a signal for stopping the motor.
Hensigtsmæssigt installeres den ovenfor beskrevne overvågning ved hver af cylindrene i en flercylinderindretning, idet allerede en begyndende rivningsskade på denne måde kan lokaliseres, det vil sige tilforordnes en bestemt cylinder.Conveniently, the monitoring described above is installed at each of the cylinders in a multi-cylinder device, since already a beginning tearing damage can be located in this way, that is, a particular cylinder is assigned.
Henvisningsbeteanelsesiisie 2 Stempelmotor 2a Stempelmotor 4 Cylinder 6 Stempel 6a Stempel 8 Stempelstang 10 Føring 11 Krumtaprum 12 Krydshoved 13 Koblingsled 14 Krumtapaksel 14a Krumtapaksel 16 Cylinderanlægsflade 18 Strømkreds 18a Strømkreds 20 Ledning 22 Ledning 24 Modstand 26 Strømkilde 28 Styreapparat 30 Ledning 32 Indretning 34 Smøremiddeliedning 36 Plej IsfangReference operation 2 Piston engine 2a Piston engine 4 Cylinder 6 Piston 6a Piston 8 Piston rod 10 Guide 11 Crankshaft 12 Cross head 13 Clutch link 14 Crankshaft 14a Crankshaft 16 Cylinder contact area 18 Circuit 18a Circuit 32 Pitch 26 Pitch 24 Pitch 24 Pipe 24 Conduit 24
Claims (13)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH00392/04A CH697582B1 (en) | 2004-03-09 | 2004-03-09 | Method and apparatus for controlling the supply of lubricant to the cylinder running surface of a piston of a reciprocating motor. |
CH3922004 | 2004-03-09 | ||
PCT/EP2005/000771 WO2005093226A1 (en) | 2004-03-09 | 2005-01-27 | Method and device for controlling the supply of lubricant to the cylinder bearing face of a piston of a reciprocating engine |
EP2005000771 | 2005-01-27 |
Publications (2)
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DK200601299A DK200601299A (en) | 2006-10-06 |
DK178428B1 true DK178428B1 (en) | 2016-02-22 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DK200601299A DK178428B1 (en) | 2004-03-09 | 2006-10-06 | Method and device for controlling the supply of lubricant to the cylinder surface of a piston in a piston motor with reciprocating pistons |
Country Status (7)
Country | Link |
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JP (1) | JP2007527969A (en) |
KR (1) | KR101160047B1 (en) |
CN (1) | CN100487230C (en) |
CH (1) | CH697582B1 (en) |
DK (1) | DK178428B1 (en) |
TW (1) | TW200530492A (en) |
WO (1) | WO2005093226A1 (en) |
Families Citing this family (6)
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JP5158971B2 (en) * | 2005-10-14 | 2013-03-06 | ザ ルブリゾル コーポレイション | Method for lubricating marine diesel engines |
EP2194244A1 (en) * | 2008-12-02 | 2010-06-09 | Wärtsilä Schweiz AG | Lubricating device and method for lubricating a baring surface of a cylinder wall |
CN103628948B (en) * | 2013-12-23 | 2015-11-18 | 北京理工大学 | A kind of free piston IC generator jet lubrication device |
JP6406298B2 (en) | 2015-10-05 | 2018-10-17 | 株式会社デンソー | Monitoring device and abnormality diagnosis device |
DE102017212666B4 (en) * | 2017-07-24 | 2023-03-02 | Vdeh-Betriebsforschungsinstitut Gmbh | Method and device for determining the condition of a mechanical component |
TWI705184B (en) * | 2019-01-24 | 2020-09-21 | 徐宗庸 | Torque Double System of Internal Combustion Engine |
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US4167172A (en) * | 1977-02-21 | 1979-09-11 | Fiat Societa Per Azioni | Device for monitoring the lubrication of the crankshaft of a reciprocating internal combustion engine by means of a Wheatstone bridge |
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EP0159742A1 (en) * | 1984-04-06 | 1985-10-30 | SKF Industrial Trading & Development Co, B.V. | Means for determining the state of lubrication in surfaces lubricated by a lubricant and rolling or sliding with respect to one another |
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WO2001048357A2 (en) * | 1999-12-24 | 2001-07-05 | University Of Central Lancashire | Lubrication control system |
EP1171695B1 (en) * | 1999-04-22 | 2002-11-13 | Electrical Engineering Company Ltd. | Method and device for monitoring plain bearings of a reciprocating piston machine, especially an internal combustion engine |
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US4326603A (en) * | 1979-12-17 | 1982-04-27 | International Business Machines Corporation | Lubrication control apparatus |
JPS5997411U (en) * | 1982-12-20 | 1984-07-02 | 三菱重工業株式会社 | Gap measurement device between piston ring and cylinder |
DE19959300A1 (en) * | 1999-12-09 | 2001-06-21 | Man B & W Diesel As Kopenhagen | Engine has lubricant ejection devices of constant capacity and frequency of ejection processes is varied to vary quantity of lubricant delivered to cylinder surface |
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KR101095418B1 (en) * | 2003-08-07 | 2011-12-16 | 베르트질레 슈바이츠 악티엔게젤샤프트 | A method and apparatus for the lubrication of a reciprocating piston combustion engine |
-
2004
- 2004-03-09 CH CH00392/04A patent/CH697582B1/en not_active IP Right Cessation
-
2005
- 2005-01-27 WO PCT/EP2005/000771 patent/WO2005093226A1/en active Application Filing
- 2005-01-27 KR KR1020067018366A patent/KR101160047B1/en not_active IP Right Cessation
- 2005-01-27 CN CNB2005800064233A patent/CN100487230C/en not_active Expired - Fee Related
- 2005-01-27 JP JP2007502205A patent/JP2007527969A/en active Pending
- 2005-02-03 TW TW094103298A patent/TW200530492A/en not_active IP Right Cessation
-
2006
- 2006-10-06 DK DK200601299A patent/DK178428B1/en not_active IP Right Cessation
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
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DE1157036B (en) * | 1959-04-30 | 1963-11-07 | Auto Union Gmbh | Lubricating device for two-stroke internal combustion engines |
DE2639839A1 (en) * | 1976-09-03 | 1978-03-09 | Burmeister & Wains Mot Mask | Electrical probe measuring the thickness of a lubricant film - is set in an insulated boring in the stationary part of the mechanism |
US4167172A (en) * | 1977-02-21 | 1979-09-11 | Fiat Societa Per Azioni | Device for monitoring the lubrication of the crankshaft of a reciprocating internal combustion engine by means of a Wheatstone bridge |
DE3338420A1 (en) * | 1983-10-22 | 1985-05-02 | Schaller-Automation Industrielle Automationstechnik KG, 6653 Blieskastel | METHOD FOR MONITORING LUBRICATION POINTS |
EP0159742A1 (en) * | 1984-04-06 | 1985-10-30 | SKF Industrial Trading & Development Co, B.V. | Means for determining the state of lubrication in surfaces lubricated by a lubricant and rolling or sliding with respect to one another |
JPH0193699A (en) * | 1987-10-05 | 1989-04-12 | Isuzu Motors Ltd | Lubricating oil monitoring device |
JPH0681623A (en) * | 1992-09-01 | 1994-03-22 | Mitsubishi Heavy Ind Ltd | Cylinder lubricating system |
EP1171695B1 (en) * | 1999-04-22 | 2002-11-13 | Electrical Engineering Company Ltd. | Method and device for monitoring plain bearings of a reciprocating piston machine, especially an internal combustion engine |
WO2001048357A2 (en) * | 1999-12-24 | 2001-07-05 | University Of Central Lancashire | Lubrication control system |
Also Published As
Publication number | Publication date |
---|---|
KR20070020218A (en) | 2007-02-20 |
JP2007527969A (en) | 2007-10-04 |
CN1926312A (en) | 2007-03-07 |
WO2005093226A1 (en) | 2005-10-06 |
CN100487230C (en) | 2009-05-13 |
TWI338077B (en) | 2011-03-01 |
TW200530492A (en) | 2005-09-16 |
CH697582B1 (en) | 2008-12-15 |
KR101160047B1 (en) | 2012-06-25 |
WO2005093226A8 (en) | 2006-11-02 |
DK200601299A (en) | 2006-10-06 |
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Effective date: 20170131 |