CN1261644A - Lubricating method for IC engine cylinder and cylinder lubricating system and connection piece - Google Patents
Lubricating method for IC engine cylinder and cylinder lubricating system and connection piece Download PDFInfo
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- CN1261644A CN1261644A CN00100991A CN00100991A CN1261644A CN 1261644 A CN1261644 A CN 1261644A CN 00100991 A CN00100991 A CN 00100991A CN 00100991 A CN00100991 A CN 00100991A CN 1261644 A CN1261644 A CN 1261644A
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- cylinder
- pressure
- lubricating
- lubricating fitting
- control gear
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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
- F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
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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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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Feedback Control In General (AREA)
Abstract
The cylinder 1 of an internal combustion engine is lubricated by at least one lubricating unit 10 for supplying lubricating oil to at least one lubricating place of a cylinder. An electronic control unit 17 actuates the unit 10 based on a measured value of variable cylinder pressure of the cylinder during one or more engine cycles in the present action mode of the engine.
Description
The present invention relates to a kind of lubricating method of cylinder of internal-combustion engine, wherein at least one lubricating fitting is by auxiliary control gear electronic control, and this lubricating fitting is at least one lubricant housings supplying lubricating oil of cylinder.
This method by claimant's Danish Patent Application No.1119/96 as can be known, wherein lubricating fitting has driven plunger, this driven plunger drives a plurality of metering piston associated movements, so that a plurality of lubricant housings of each electric control device lubricated cylinder when starting lubricating fitting.The quick start of hydraulically powered lubricating fitting, and with useful high lubrication pressure to the lubricant housings supplying lubricating oil.
Wish for many years always can be just piston during through the lubricant housings in cylinder supplying lubricating oil, for example, referring to Danish Patent No.81275 in 1954, Swiss Patent No.406735 in 1966, the European patent No.0678152 of the open No.2827626 of D.B.P. in 1979 and 1997.
In fact, this ideal situation is extremely difficult to be realized, because the real time of many factor affecting supplying lubricating oils.The example that can provide seldom.Start lubricating fitting and lubricant oil is supplied to the viscosity that depends on lubricant oil retard time between the lubricant housings.Be the time lag of determining actual retard time, is that rotating speed with motor changes and can obtain correctly lubricated retard time.As everyone knows, during the electric start lubricating fitting, actuating signal is that the angular orientation according to crankshaft produces.In the course of the work, how many reversing of crankshaft (twist) depends on current engine load and the signal occurrence device distance to above-mentioned cylinder, the rotatablely moving of this signal occurrence device detection axis, and the mistake that causes lubrication time of reversing of this crankshaft changes.
The objective of the invention is to improve the supply of lubricant oil, this lubricant oil is an interior lubricant housings of supply cylinder at least.
With this object in view, the inventive method is characterised in that: when engine running, in one or more cyclic process, electric control device is according to the startup of the measured value control lubricating fitting of cylinder inside cylinder variation in pressure at motor.
The measurement of actual cylinder pressure provides the real conditions of current piston motion in the cylinder, this be can piston through the very short time of lubricant housings in the foundation of supplying lubricating oil.Measured value provides the temporal information of piston through the lubricant housings and information blanking time of each piston process to electric control device.Be issued to time lag information between the lubricant oil effective supply lubricant housings according to the desirable consumption volume information of these data and storage and actuating signal, when control gear calculates should send next actuating signal.Because when motor during with the running of the mode of operation of proper lubrication, the variation of having measured cylinder pressure, and current data is brought in constant renewal in, and therefore, constantly provides corresponding starting time according to the current piston motion situation in the cylinder.
By means of known technology, can measure cylinder pressure, for example be installed in the strainometer on the lid bolt of cylinder head, but the current location and the motion conditions of the expression piston that the measured value of this cylinder total pressure level can only be rough relatively.
Preferably, the pressure measurement point in cylinder is measured the variation of pressure, and this variation in pressure is owing to the piston ring on the piston produces through pressure measurement point, and these pressure measuring values are relevant with the control of lubricating fitting starting time usually.Obviously, when piston ring process pressure measurement point, produce specific variation in pressure, and this variation in pressure is positioned at direct zone around piston ring.This just can measure the current location of piston very accurately, thereby the accurate foundation of determining the startup of lubricating fitting by control gear is provided.
In a preferred embodiment of the invention, measure the variation and the lubricating oil pressure of cylinder pressure in the lubricant housings.A plurality of advantages are arranged like this.Measured value provides the cylinder pressure information of lubricant housings, and therefore the time that does not need the control gear compensating piston to move between measuring point and lubricant housings, this time adjustment is with the rotation speed change of motor.Moreover same measuring point provides the information of lubricant oil being supplied with the precise time of lubricant housings, because this supply causes the obvious increase of measuring pressure.Known problem has been avoided in the measurement of this lubricant oil effective supply time, promptly estimates to start the problem that change the retard time between lubricating fitting and the lubricant oil arrival lubricant housings.
Another benefit is, a certain amount of protectiveness lubricant oil is arranged between the gas in pressure transducer and cylinder, and this lubricant oil has cooling action, and guarantees that pressure transducer is in single working condition rationally.And the supply of lubricant oil has the residuals after burning is removed in the effect of cleaning pressure sensor peripheral region and assurance, if this residuals is deposited on the pressure transducer.
The startup of lubricating fitting can corresponding work at present situation or the mode of operation that depends on cylinder.Supervision to working condition can be based on system known per, for example, anti-scratch system (anti-scuffing system) and/or the selected cylinder operation temperature of measurement, preferably, during operation, the number of times that lubricating fitting starts is less than motor cycle-index during operation, and pressure measurement data offers control gear, so that the pressure measuring value in the engine cycles process according to lubricating fitting when inoperative is analyzed the working condition of piston ring.When being with respect to piston motion when the appropriate time is lubricated, the pressure transducer that is arranged in the lubricant housings can not the measuring pressure data, this pressure data can be used for defining the working condition of lubricated engine cycles process piston ring, this is " to have flooded " little variation in pressure because the lubricated pressure that causes increases, and this little variation in pressure shows initial work problem.In each engine cycles process, omitted lubricated to cylinder, will make the pressure measuring value that records in the engine cycles that never lubricant oil is supplied with can be used in analysis the working condition of piston ring.Each time lag that starts of lubricating fitting is longer to also have such benefit, and promptly each to start the lubricant oil volume of being supplied with bigger, and this has improved lubrication effect, because more substantial lubricant oil can be more effective along the cylinder circle distribution.
When engine running, the parameter that Working Status Monitoring makes cylinder pressure change can be stored in the control gear, and the variation of this cylinder pressure represents that the working state of cylinder is normal.When new engine moves, the parameter of each cylinder can be recorded and store, therefore, they incite somebody to action foundation as a comparison subsequently, with determine the current operational data that records shown be normal working condition or improper working condition, under improper working condition, need to change running parameter, for example increase the consumption of lubricant oil.When each cylinder is set up reference data according to its practical working situation, also can be determined even depart from the very little deviation of nominal situation.Therefore the working condition monitoring can be sent the alarm of non-normal working situation, and the anti-scratch system of its time ratio prior art wants early manyly, and this anti-lock braking system is that improper temperature rise with the cylinder wall of being surveyed is a foundation.
Preferably, the reference data of cylinder normal operative condition is upgraded by control gear, so that compensate the long-term change of the cylinder pressure variation tendency that causes owing to the cylinder normal wear.This Data Update has improved the possibility that control gear detects the little deviation that departs from nominal situation, and this Data Update can regularly carry out.
Working condition monitoring send automatically each piston ring by the time pressure whether normal information falls, it is working properly that normal demonstration falls in pressure.And, if be ready, can preferably monitor piston ring whether around the longitudinal shaft rotation of piston, because in the reference data the when reference data of the variation of cylinder pressure when instability changes also is comprised in the cylinder normal operative condition of control gear, it is because the czermak space of piston ring also periodically passes through measuring point that the instability that this cylinder pressure changes changes.Therefore, Working Status Monitoring can write down the speed of each piston ring, if the speed of piston ring descends when the continuous running of motor, control gear sends signal, and the expression piston ring has the sign that stops up in the corresponding annular groove.
Preferably,, comprise when piston, piston ring or cylinder liner are in the non-normal working situation that control gear control lubricating fitting is with the lubricant oil of the more consumptions of temporary transient use if the measured value that cylinder pressure changes shows cylinder.Usually, the temporary transient lubricant oil consumption that increases has enough rebulid normal working condition.When state shows when departing from nominal situation, control gear can the notifying operation personnel or the variation of center control gear operating mode.This can send as early as possible, and cylinder should be checked and the eligible for repair warning of possibility, like this, can order spare part and formulate repair schedule.With regard to cylinder, can use maintenance to replace regular regular maintenance usually according to the cylinder practical working situation.Maintenance can be a prevention character, and when control gear showed that may produce job failure future, maintenance can prevent that early stage interference from developing into job failure, and maintenance also can be because the needs that the physical fault of cylinder is reported.
Usually, the consumption of lubricant oil is set by predetermined minimum lubrication oil consumption, this minimum lubrication oil consumption determines that according to working experience this working experience is that a plurality of motors draw under normal continuous operation situation and maximum-continuous rating (MCR) (100% engine load).Enough greatly, the change of this lubricant oil consumption is that the worker difference owing to lubrication system and cylinder part causes to this standard consumption for the change of compensation lubricant oil consumption.
The present invention preferably shows that up to the cylinder pressure measure of the change working condition of cylinder begins to depart from normal working condition by reducing the lubricant oil consumption, so that significantly save the consumption of lubricant oil, wherein, control gear detects the minimum lubrication oil consumption of needed supply cylinder automatically.Like this, aforesaid cylinder minimum amount is to depart from the corresponding time used amount of nominal situation before taking place.
Also can use such lubricating fitting, this lubricating fitting is by changing the consumption volume of each startup, and the method that starts measuring apparatus with the characteristic frequency relevant with engine cycles is regulated consumption then.Another kind method is, it is identical that lubricating fitting starts used amount at every turn, and the lubricant oil consumption of lubricating fitting is to change like this, promptly by changing the period that motor is experienced between each starting period at lubricating fitting.The form that this lubricating fitting starts has such benefit, and each consumption that starts can be enough big, well distributes in cylinder to guarantee lubricant oil.
Also has a kind of scheme, control gear has the engine cycles information of a plurality of standard group, wherein every group of engine cycles produces a lubricating fitting actuating signal, changed by the combination that changes continuous engine cycles standard group by the consumption of the lubricant oil of lubricating fitting metering.For example, can be the standard group of engine cycles such as 3,4,5,6, each standard group has a lubricating fitting actuating signal, for example, at the duration of work of one 500 engine cycles,, can obtain the continuous variation of metered volume by selecting the combination of suitable continuous standard group.For example, if in a certain mode of operation, adopt the standard group of per four engine cycles one-shots,, just can reduce consumption slightly by after the 4th standard group of four engine cycles, selecting the standard group of five engine cycles for use.Aspect Engineering Control, this is an extremely simple control mode in the control gear.
Thereby can be reduced on the motor in the design of the cost when realizing in a kind of machinery that do not require, especially to existing, not in the remodeling with the motor of surveying the equipment that crank rotatablely moves, this method is characterised in that: control gear random start lubricating fitting in the back to back engine cycles process behind engine start, the measured value that control gear changes according to cylinder pressure in the cylinder is regulated the starting time of lubricating fitting in the engine cycles process, like this, in the stroke that piston makes progress, flow of lubricant is to the lubricant housings when the piston-ring packing of piston faces toward the lubricant housings.After the very short work cycle, when control gear tells piston through the lubricant housings according to the measured value that cylinder pressure changes, can regulate the startup of lubricating fitting then in simple mode, like this, when piston is lubricated the supply of oil during through the lubricant housings.
The invention still further relates to a kind of cylinder lubricating system that is used for internal-combustion engine, this cylinder lubricating system has at least one lubricating fitting and control gear, this lubricating fitting at least one lubricant housings supplying lubricating oil in cylinder, this control gear is used for the electronic control of lubricating fitting.This cylinder lubricating system is characterised in that: it comprises at least one pressure transducer, and the cylinder pressure in this pressure transducer measurement cylinder changes, and control gear receives the pressure measurement data about the inner pressure of air cylinder variation of pressure transducer by the data inlet.This system can carry out data capture, so that analyze the working condition of cylinder and the startup of adjusting lubricating fitting, this can be used in the acquisition aforementioned benefits.Pressure transducer preferably is arranged on the cylinder sidewall, the pressure of surveying work surface area, and in each engine cycles process, piston ring is through this working surface region, and the local compression around the piston ring changes the work information that each respective pistons ring is provided.
In a preferred embodiment, control gear comprises that program intelligence, self study with the processing pressure survey data, for example has the go-between and/or the program of general-purpose algorithm or fuzzy logic.According to cylinder data that record in the course of the work and predetermined typical fault work information, this program can detect and depart from the very little deviation of nominal situation, and sends the alarm of incipient error operating mode as early as possible.
Also have, the present invention relates to link, this link is installed in the lubricant housings of the cylinder of internal-combustion engine, and comprise housing and passage, this housing inserts in the hole of cylinder wall, this tunnel-shaped is formed in the housing and extends to the exhaust port of lubricant housings from the joint that connects lubrication piping, and this passage includes towards the one-way valve of exhaust port opening.Link is characterised in that: pressure transducer is communicated with the channel part that extends to exhaust port from one-way valve.Like this, when link was installed on the cylinder, pressure transducer continued to be communicated with the zone at place, cylinder interior lubricant housings.Pressure transducer can be included in the housing of link.
Below by the accompanying drawing that reference altitude is summarized, the present invention will be described in more detail, wherein:
Figure 1 shows that the fragmentary cross-sectional view of cylinder formed according to the present invention,
Fig. 2 is another embodiment of lubrication system of the present invention,
Fig. 3-the 6th, the plotted curve of the pressure sequence in the cylinder that in the compression stroke process, records,
Fig. 7 is the plotted curve of the pressure sequence in the same cylinder that records in the expansion stroke process,
Fig. 8 and Figure 9 shows that data processing sequence, and
Figure 10 is the side view of link of the present invention.
Cylinder of internal-combustion engine 1 shown in Figure 1 comprises cylinder liner 2, cylinder head 3 and piston 5, on this cylinder head 3 outlet valve 4 is arranged, and this piston 5 is installed in the top of piston rod 6.Piston has several circular grooves that piston ring 7 is housed on its outer surface, the number of piston ring can change with engine type is different, but at least three usually, maximum six piston rings.For sealing well, piston ring must be can be in the corresponding annular groove movable, and the activity of piston ring is usually included in moving up and down and rotating around the longitudinal axis 8 of piston in the circular groove.
The cylindrical form interior surface of cylinder liner 2 forms the working surface 9 of piston ring, the lowermost end of working surface is positioned at the place, base when piston nethermost piston ring during at lower dead centre, and the top of working surface is positioned at the top edge when piston uppermost piston ring during at upper dead center.Have only and continue and suitably to the working surface supplying lubricating oil, piston ring and cylinder liner could correct runnings.In horizontal engine with outside guide, central floor panel (intermediate bottom) is separated oil trap on the base and cylinder, therefore need carry out cylinder lubrication separately, this can have lubricating fitting 10 to realize, this lubricating fitting 10 can be the form disclosed as the open DE-A of claimant's D.B.P. 19743955, this patent disclosure electric start, also disclose the hydraulic driving starter and driven a plurality of metering pistons and supply with motion jointly; Or as EP-B0678152 introduced, mechanically operated pump combined with the electronic control tapping equipment of each metered volume of lubricant oil.
Lubricating fitting 10 can be to several lubricant housings 11 supplying lubricating oils of same cylinder or several cylinders.When to several cylinder supplying lubricating oil, the time that lubricating fitting adapts to each cylinder respectively starts.Big motor usually at least each cylinder a lubricating fitting is arranged, the lubricant housings of the lubricating fitting of ining succession is usually in the same lengthwise position (level) of cylinder liner, but along circumferentially spaced apart.If wish lubricated and/or use polytype oil lubrication, the more lubricating fitting of each cylinder utilization usually at several horizontal positions.
Internal-combustion engine can be a low speed, and the horizontal engine with outside guide of two strokes, this maximum engine speed are between 60-275rpm, and the output power of each cylinder is between 300-6000kw, and cylinder-bore is between 25-100cm, and stroke is between 90-300cm.The present invention also can well be used for the cylinder of the four stroke engine of pressure lubrication cylinder.
Lubricating fitting 10 is connected to lubricant housings 11 by conduit or lubrication management 12, near the place, lubricant housings one-way valve 13 is arranged, and 13 on this one-way valve allows to flow to the lubricant housings, and prevents that cylinder pressure higher relatively in the working stroke process from propagating on the lubricating fitting.When lubricant oil supplied to the lubricant housings at cylinder wall side place of one-way valve, lubricating oil pressure was greater than the current pressure of lubricant housings in the cylinder.For example, the lubricant housings can be positioned at such position, and the pressure of cylinder clings between 30 crust 5, like this can the working pressure sensor, and the pressure transducer that this pressure transducer is measured and arranged real zero point, promptly do not have signal to amplify with less relatively pressure intervals.
Between at least one lubricant housings and the one-way valve that is attached thereto, be connected with pressure transducer 14 (pressure acquisition device), because this pressure transducer 14 is connected to the supply side of one-way valve, therefore directly measure cylinder pressure in the lubricant housings.The signaling line 15 of being drawn by pressure transducer 14 is transferred to pressure measurement data the data input pin 16 of control gear 17, this control gear 17 determines when the startup lubricating fitting according to the data of measuring and the data of storage, and correspondingly sending control signal to lubricating fitting 10 by signaling line 18, this lubricating fitting 10 is by conduit 19 supplying lubricating oils.Figure 1 shows that two lubricating fittings 10 of the lubricated same cylinder of control gear 17 controls.The starting time of lubricating fitting is relevant with piston motion, and it only needs to use single pressure sensor 14, but preferably each lubricating fitting 10 uses at least one pressure transducer, because can control the correct running of each lubricating fitting like this.
For for simplicity, in the explanation to other embodiment, same device uses label as hereinbefore below.
Figure 2 shows that cylinder, each cylinder of this motor has the embodiment of two lubricating fittings 10, and the lubricant housings 11 that circumferentially distributes along cylinder alternately connects each lubricating fitting.When a lubricating fitting lost efficacy, another lubricating fitting can start and with the dosage supply of its normal lubricant oil consumption twice at least, therefore make the cylinder proper functioning get rid of up to fault.
Each lubricating fitting 10 links to each other with pressure transducer 14, and this pressure transducer 14 is arranged in the place, lubricant housings, and this lubricant housings is mutually spaced apart and corresponding each other the facing that make progress in week.When the survey data of pressure transducer is used for the state analysis of piston ring, by comparison to two pressure transducers, can determine that whether measured pressure result (sequences) deviation of pressure transducer is because the piston ring gap passage in simple mode, this can be determined by the normal pressure result that another pressure transducer is measured, perhaps whether it is because the fault of piston ring, and this makes two sensors the pressure result error occur.Two pressure transducers also can improve the reliability of work, even because a pressure transducer also can keep the proper functioning of lubricating fitting 10 when breaking down.The functional reliability of lubrication system can also improve like this, and promptly by making the lubricating fitting can be by other control gear control with as standby, for example, control gear 10 connects other cylinder of motors.Can be that a control gear 10 is used for each cylinder, or control gear 10 can be common to one group of cylinder or whole motor.
The curve of Fig. 3-6 is depicted as the piston of turbine pressurizing two-stroke diesel engine in the compression stroke process, as the function of time and the force value of measuring.Pressure transducer is positioned at the lubricant housings, is adjusted to its zero point suitable with suction pressure.Piston has four piston rings.Figure 3 shows that in the force value that in the engine cycles process of measuring point supplying lubricating oil, does not measure.Curve has tangible peak value b, and the time t1 of this peak value b is when piston ring top during through the lubricant housings.Soon afterwards, curve has peak value c, d, and e, this peak value c, d, e shows that with the form that the remarkable reduction that is accompanied by pressure has little pressure to raise other four piston rings are through out-of-date characteristic.When the piston that makes progress through after, the cylinder pressure that can see measuring point is not subjected to the influence of the more high pressure in the firing chamber above the piston substantially.If measuring point at the working surface of cylinder, for example, is not measured the pressure load on the cylinder head, can obtain the conceptual data of piston position, but can't obtain the local compression delta data on each piston ring.
Be respectively the lubricated pressure that too early, just in time records when too late f, g and h as a result shown in Fig. 4-6.In these three kinds of situations, at time t2 place, make force value obviously raise to the lubricant housings supplying lubricating oil, at time t1 place, first piston ring is through making pressure obviously reduce.Ideal situation is at time t1 supplying lubricating oil during the time e, and this time e represents nethermost piston ring process.This correct time as shown in Figure 5.
Measured variation in pressure can be used for correctly controlling the time of lubricating oil filling, and this is relevant with the piston elapsed time, just correctly starts lubricating fitting up to time t1 and t2 basically identical time-control apparatus.
Preferably, when the supplying lubricating oil during of the piston ring above at least three through the lubricant housings, the lubricant oil consumption of preferably supplying with each startup of lubricating fitting at the cross-section area of the exit opening of lubricant housings adapts, and can obtain maximum continuous rating like this.When time of engine low load operation, piston is slowlyer through the lubricant housings, and the flowing time of lubricant oil usually remains unchanged, therefore periodic time of delay start lubricating fitting of control gear, for example, per second or when starting for the third time, supply with to the lubricant housings through out-of-date just the beginning up to the first piston ring like this.The piston-ring packing that guarantees piston is all lubricated at top and bottom like this.
When piston does not have supplying lubricating oil through the measuring point on the working surface, as shown in Figure 3, can obtain the detailed data of piston ring situation, and each piston ring shows that through out-of-date pressure reduction piston ring is in suitable working condition.Because piston ring rotates in circular groove, and piston ring has oblique czermak space, gas flows through piston ring by this czermak space, therefore when pressure measurement, each piston ring produces periodic unstable (transient) survey data, according to this pressure measuring value, piston is far smaller than normal value through the force value of out-of-date reduction.When piston ring slowly rotates, will be appreciated that this process mode will take place in several engine cycles processes.
Figure 7 shows that force value measured when piston is in expansion stroke.Represent that by the vertical line of I mark piston ring passes through pressure transducer downwards, this vertical line shows the pressure in the firing chamber, and after beginning that some pressure surges are arranged, pressure steadily drops to exhaust pressure.In control gear, the force value signal under the work at present pattern can be used to regulate opening the time of outlet valve.
In the electric control device 17, the pressure measurement data of collection can be stored and analyze, and Fig. 8 has schematically illustrated such example, and wherein, in step 21, the signal 20 that transmits by signaling line 15 can store after filtering unwanted signal.In step 22, selected proper data is analyzed to determine time t1, in step 23, corresponding definite time t2, subsequently, in step 24, control gear need to determine whether the time or the others of the actuating signal that the subtend lubricating fitting sends to adjust by relatively time t1 and t2, sends control signal 25 with ideal style to lubricating fitting then.In step 24, can analyze according to predetermined standard, also can replenish the signal of one or more engine operating parameters, for example, present load or the load variations order that provides, special lubricated order that perhaps manually provides or the like.In Fig. 2, signaling line 26 shows that control gear can receive the external signal of this class.
Fig. 9 has summarized another embodiment of control gear processing pressure survey data, wherein, after in step 27, filtering noise and unwanted signal, in step 28, can analytic signal whether be to be suitable as the cylinder pressure running parameter of cylinder under normal operative condition, if be fit to, this signal back is transferred to step 21 again, and stores so that be used for the filtering and the analysis of later step subsequently.Parameter can be updated, and when data updated is analyzed, can compare with the predetermined variation with expection, to prevent comprising initial error condition in the parameter.
In step 28, can analyze by program intelligence, self study, as have the go-between and/or the program of common algorithm or fuzzy logic.This class method is that Working Status Monitoring and analysis field are known.When the motor supplying lubricating oil, program can be by training under normal working and error pattern the cylinder of the above-mentioned type motor and debugging, after the cylinder test run, pressure measurement data actual signal when program can be passed through to analyze engine running carries out the final debugging of program and the parameter of definite respective cylinder.After these are finished, when control gear is working properly, the signal that step 29 can be determined to control the information of motor and start lubricating fitting.
Internal-combustion engine also can be four stroke engine and plunger can be arranged.
Claims (19)
1. the lubricating method of a cylinder of internal-combustion engine, wherein at least one lubricating fitting carries out electronic control by the control corresponding device, this lubricating fitting is at least one lubricant housings supplying lubricating oil of cylinder, it is characterized in that: when engine running, the measured value that electric control device changes according to the cylinder pressure in the cylinder is controlled the startup of motor lubricating fitting in one or more cyclic process.
2. method according to claim 1, it is characterized in that: measure the pressure surge value in the pressure measurement point of cylinder, this pressure surge value is that these pressure measuring values are used for the lubricating fitting control of starting time owing to the piston ring on the piston in the cylinder produces through pressure measurement point.
3. method according to claim 2 is characterized in that: measure the variation of cylinder pressure and the pressure of lubricant oil in the lubricant housings.
4. method according to claim 1, it is characterized in that: during operation, the number of starts of lubricating fitting is less than the engine cycles number of times of this duration of work, pressure measurement data offers control gear, so that the pressure measuring value in the engine cycles process according to lubricating fitting when inoperative is analyzed the working condition of piston ring.
5. method according to claim 4 is characterized in that: during engine running, show that the cylinder pressure running parameter of cylinder normal operative condition is stored in the control gear.
6. method according to claim 5 is characterized in that: the reference data of cylinder normal operative condition is upgraded by control gear, the long-term change that the cylinder pressure that causes owing to normal wear with compensation changes.
7. method according to claim 4, it is characterized in that: in the reference data the when reference data of the variation of cylinder pressure when instability changes also is comprised in the cylinder normal operative condition of control gear, the instability that this cylinder pressure changes changes because the czermak space of piston ring also periodically causes through measuring point.
8. method according to claim 5 is characterized in that: if the measured value that cylinder pressure changes shows when cylinder is in the non-normal working situation control gear control lubricating fitting, the temporary transient lubricant oil that uses more consumptions.
9. method according to claim 4, it is characterized in that: control gear shows that up to the measurement of cylinder pressure variation the working condition of cylinder begins to depart from normal working condition by reducing the lubricant oil consumption, detects the required minimum lubrication oil consumption of cylinder automatically.
10. according to each the described method among the claim 4-9, it is characterized in that: by changing the lubricant oil consumption that engine cycles number that each lubricating fitting experienced between the starting period changes lubricating fitting.
11. method according to claim 10, it is characterized in that: control gear has the engine cycles information of a plurality of standard group, wherein every group of engine cycles produces a lubricating fitting actuating signal, changed by the combination that changes continuous engine cycles standard group by the consumption of the lubricant oil of lubricating fitting metering.
12. method according to claim 1, it is characterized in that: control gear random start lubricating fitting in the back to back engine cycles process behind engine start, the measured value that control gear changes according to cylinder pressure in the cylinder is regulated the starting time of lubricating fitting in the engine cycles process, like this, in the stroke that piston makes progress, flow of lubricant is to the lubricant housings when the piston-ring packing of piston faces toward the lubricant housings.
13. method according to claim 1 is characterized in that: when engine running, according to the measured value that cylinder pressure changes, electric control device sends signal, and in order to control at least one further running parameter, for example outlet valve opens the time.
14. cylinder lubricating system that is used for internal-combustion engine, this cylinder lubricating system has at least one lubricating fitting and control gear, this lubricating fitting at least one lubricant housings supplying lubricating oil in cylinder, this control gear is used for the electronic control of lubricating fitting, it is characterized in that: it comprises at least one pressure transducer, cylinder pressure in this pressure transducer measurement cylinder changes, and control gear receives the pressure measurement data about the inner pressure of air cylinder variation of pressure transducer by the data inlet.
15. cylinder lubricating system according to claim 14 is characterized in that: pressure transducer is arranged on the cylinder sidewall, the pressure of surveying work surface area, and in each engine cycles process, piston ring is through this working surface region.
16. cylinder lubricating system according to claim 15, it is characterized in that: the lubricant oil exhaust port of lubricating fitting is connected to the lubricant housings by lubricating pipe, this lubricating pipe comprises one-way valve, when cylinder pressure during greater than lubricating oil pressure, this one-way valve disconnects lubricating pipe and cylinder pressure, and pressure transducer is arranged as with the lubricating pipe of one-way valve cylinder side and is communicated with.
17. each the described cylinder lubricating system according to claim 14-16 is characterized in that: control gear comprises that program intelligence, self study with the processing pressure survey data, for example has the go-between and/or the program of common algorithm or fuzzy logic.
18. link, this link is installed in the lubricant housings of the cylinder of internal-combustion engine, and comprise housing and passage, this housing inserts in the hole of cylinder wall, this tunnel-shaped is formed in the housing and extends to the exhaust port of lubricant housings from the joint that connects lubrication piping, and this passage includes towards the one-way valve of exhaust port opening, it is characterized in that: pressure transducer is communicated with the channel part that extends to exhaust port from one-way valve.
19. link according to claim 18 is characterized in that: pressure transducer is included in the housing of link.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK199900056A DK173533B1 (en) | 1999-01-18 | 1999-01-18 | Method of lubricating a cylinder in an internal combustion engine as well as cylinder lubrication system and connecting element |
| DKPA199900056 | 1999-01-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1261644A true CN1261644A (en) | 2000-08-02 |
| CN1125237C CN1125237C (en) | 2003-10-22 |
Family
ID=8089237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00100991A Expired - Lifetime CN1125237C (en) | 1999-01-18 | 2000-01-17 | Lubricating method for IC engine cylinder and cylinder lubricating system and connection piece |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JP3411874B2 (en) |
| KR (1) | KR100405373B1 (en) |
| CN (1) | CN1125237C (en) |
| DE (1) | DE10001518B4 (en) |
| DK (1) | DK173533B1 (en) |
| FI (1) | FI113488B (en) |
| GB (1) | GB2345738B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100348841C (en) * | 2003-01-17 | 2007-11-14 | 沃尔沃拉斯特瓦格纳公司 | Lubrication system for an internal combustion engine |
| CN106870158A (en) * | 2015-12-10 | 2017-06-20 | 现代自动车株式会社 | For the method for preventing piston machine oil from rising and the engine using the method |
| CN107544345A (en) * | 2017-09-28 | 2018-01-05 | 中原工学院 | A kind of train wheel track curvilinear motion intelligent lubricating control system |
| CN111406150A (en) * | 2017-12-07 | 2020-07-10 | 株式会社 Ihi | Engine system |
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| DK1582706T3 (en) | 2004-03-31 | 2008-09-29 | Mitsubishi Heavy Ind Ltd | Internal internal combustion engine with cylinder lubrication system |
| JP4031772B2 (en) | 2004-04-16 | 2008-01-09 | 三菱重工業株式会社 | Internal combustion engine with cylinder lubrication device |
| DE102005007406A1 (en) * | 2005-02-18 | 2006-08-24 | Dr.Ing.H.C. F. Porsche Ag | Method for controlling an engine oil pump |
| DE502006001227D1 (en) * | 2005-09-23 | 2008-09-11 | Waertsilae Nsd Schweiz Ag | Cylinder lubrication system for a reciprocating internal combustion engine |
| KR101052555B1 (en) * | 2008-11-19 | 2011-07-29 | 경상대학교산학협력단 | Electronically Controlled Quill System of Cylinder Lubricator and Lubricating System Using the Same Set in a Large Two-stroke Diesel Engine |
| EP2194244A1 (en) * | 2008-12-02 | 2010-06-09 | Wärtsilä Schweiz AG | Lubricating device and method for lubricating a baring surface of a cylinder wall |
| JP5933217B2 (en) * | 2011-10-12 | 2016-06-08 | 株式会社Ihi | Two-cycle engine and method of lubricating two-cycle engine |
| US8739746B2 (en) * | 2012-01-31 | 2014-06-03 | Ford Global Technologies, Llc | Variable oil pump diagnostic |
| KR101506313B1 (en) * | 2012-05-15 | 2015-03-26 | 맨 디젤 앤드 터보 필리얼 아프 맨 디젤 앤드 터보 에스이 티스크랜드 | Cylinder lubrication device |
| FR3029588B1 (en) * | 2014-12-03 | 2017-04-28 | Renault Sas | MANOCONTACT ARRANGEMENT IN A SOLENOID VALVE |
| CN105332762B (en) * | 2015-11-12 | 2017-10-03 | 哈尔滨工程大学 | A kind of boat diesel engine electric-control common-rail type Cylinder lubricating lubricating system |
| KR200487868Y1 (en) * | 2016-08-29 | 2018-11-14 | 코프로멕 다이 캐스팅 에스.알.엘. 어 소시오 유니코 | Piston for a die-casting machine |
| FR3087888B1 (en) * | 2018-10-31 | 2020-10-09 | Safran Aircraft Engines | DEVICE AND METHOD FOR MONITORING THE LIFETIME OF A HYDRAULIC EQUIPMENT OF AN AIRCRAFT |
| AT524547B1 (en) * | 2021-06-28 | 2022-07-15 | Hoerbiger Wien Gmbh | Reciprocating compressor and method of operating a reciprocating compressor |
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| CH544299A (en) * | 1971-10-27 | 1973-11-15 | Sulzer Ag | Device for measuring the pressure curve in the combustion chamber of a reciprocating internal combustion engine |
| DE3044255A1 (en) * | 1980-11-25 | 1982-06-24 | M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8900 Augsburg | CYLINDER AND PISTON LUBRICATION DEVICE ON AN INTERNAL COMBUSTION ENGINE |
| JPS6081623A (en) * | 1983-10-13 | 1985-05-09 | Nissan Motor Co Ltd | Structure of change lever |
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-
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- 2000-01-14 GB GB0000941A patent/GB2345738B/en not_active Expired - Lifetime
- 2000-01-15 KR KR10-2000-0001844A patent/KR100405373B1/en active IP Right Grant
- 2000-01-15 DE DE10001518A patent/DE10001518B4/en not_active Expired - Lifetime
- 2000-01-17 CN CN00100991A patent/CN1125237C/en not_active Expired - Lifetime
- 2000-01-17 FI FI20000083A patent/FI113488B/en not_active IP Right Cessation
- 2000-01-18 JP JP2000008604A patent/JP3411874B2/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100348841C (en) * | 2003-01-17 | 2007-11-14 | 沃尔沃拉斯特瓦格纳公司 | Lubrication system for an internal combustion engine |
| CN106870158A (en) * | 2015-12-10 | 2017-06-20 | 现代自动车株式会社 | For the method for preventing piston machine oil from rising and the engine using the method |
| CN106870158B (en) * | 2015-12-10 | 2020-09-04 | 现代自动车株式会社 | Method for preventing piston engine oil from rising and engine using the same |
| CN107544345A (en) * | 2017-09-28 | 2018-01-05 | 中原工学院 | A kind of train wheel track curvilinear motion intelligent lubricating control system |
| CN107544345B (en) * | 2017-09-28 | 2019-08-02 | 中原工学院 | A kind of train wheel track curvilinear motion intelligent lubricating control system |
| CN111406150A (en) * | 2017-12-07 | 2020-07-10 | 株式会社 Ihi | Engine system |
| CN111406150B (en) * | 2017-12-07 | 2023-02-21 | 株式会社 Ihi | Engine system |
Also Published As
| Publication number | Publication date |
|---|---|
| FI113488B (en) | 2004-04-30 |
| DE10001518B4 (en) | 2008-11-13 |
| CN1125237C (en) | 2003-10-22 |
| DK173533B1 (en) | 2001-02-05 |
| GB2345738A (en) | 2000-07-19 |
| GB2345738B (en) | 2003-02-12 |
| GB0000941D0 (en) | 2000-03-08 |
| JP2000213322A (en) | 2000-08-02 |
| FI20000083A (en) | 2000-07-18 |
| DE10001518A1 (en) | 2000-08-24 |
| DK199900056A (en) | 1999-09-13 |
| KR20000076469A (en) | 2000-12-26 |
| JP3411874B2 (en) | 2003-06-03 |
| FI20000083A0 (en) | 2000-01-17 |
| KR100405373B1 (en) | 2003-11-12 |
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Owner name: MAN DIESEL AS Free format text: FORMER NAME: MAN B + W DIESEL AS. Owner name: MAN DIESEL ENGINES AND TURBINE GERMAN SUBSIDIARY, Free format text: FORMER NAME: MAN DIESEL AS Owner name: MAN DIESEL AS Free format text: FORMER NAME: MAN DIESEL AS |
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Address after: Copenhagen Patentee after: MAN DIESEL & TURBO FILIAL AF MAN DIESEL & TURBO SE TYSKLAND Address before: Copenhagen Patentee before: MAN DIESEL & TURBO FILIAL AF MAN DIESEL & TURBO SE TYSKLAND Address after: Copenhagen Patentee after: MAN DIESEL & TURBO FILIAL AF MAN DIESEL & TURBO SE TYSKLAND Address before: Copenhagen Patentee before: MAN DIESEL filial af MAN Diesel SE Tyskland Address after: Copenhagen Patentee after: MAN DIESEL filial af MAN Diesel SE Tyskland Address before: Copenhagen Patentee before: MAN B & W DIESEL A/S |
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