CN105317581A - Cylinder liner for large diesel engine and method for determining characteristic values of lubricating oil film - Google Patents
Cylinder liner for large diesel engine and method for determining characteristic values of lubricating oil film Download PDFInfo
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- CN105317581A CN105317581A CN201510445437.0A CN201510445437A CN105317581A CN 105317581 A CN105317581 A CN 105317581A CN 201510445437 A CN201510445437 A CN 201510445437A CN 105317581 A CN105317581 A CN 105317581A
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- cylinder liner
- lubricant film
- passage
- detection beam
- electromagnetic radiation
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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
-
- 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
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/10—Indicating devices; Other safety devices
Abstract
The invention relates to a cylinder liner (1) for a large diesel engine and a method for determining characteristic values of a lubricating oil film (2). The cylinder liner (1) comprises a piston (12) which is configured to move back and forth in the cylinder liner (1) along a cylinder axis (A) of the cylinder liner (1); an upper side of the piston (12), wherein the upper side, the running surface of the cylinder liner (1) and a cylinder cover arranged on the cylinder liner (1) limit a combustion chamber together; and a lubrication device used for introducing a lubricant into the cylinder liner (1), wherein the lubricant forms a lubricating oil film (2) in the cylinder liner (1) in the operating state. According to the invention, the cylinder liner (1) comprises at least one passage (13), an optical element (5) is arranged on the passage (13), and the optical element (5) is configured and arranged such that the lubricating oil film (2) can be illuminated by an illumination beam (3) in the form of electromagnetic radiation.
Description
Technical field
The present invention relates to a kind of cylinder liner for large-scale diesel engine as described in the preamble according to independent claims 1 and the method determining the eigenvalue of lubricant film as described in the preamble according to independent claims 12.
Background technique
Large-scale diesel engine is often used as the driver element of boats and ships, or is also used in static operation, such as, be used for driving high-rating generator to produce electric energy.In this respect, in general motor is all in and forever operates running on quite long period, and this all proposes high requirement to operating security and usability.Therefore, particularly, the economic treatment of long maintenance intervals, low wearing and tearing and fuel and operative material is for the core standard operator being all machine operation.The running behavior of piston in the cylinder liner of the low operating diesel engines of this large cylinder holes for especially determinant factor the length of maintenance intervals, usability and quality and lubrication oil consumption, and directly for running cost and be also thus determinant factor for efficiency.Thus, the significance of the piston operation action of large-scale diesel engine and the challenge of large-scale diesel engine lubrication is increasing.
Summary of the invention
Therefore, the object of this invention is to provide a kind of cylinder liner and method, described cylinder liner and described method allow to test lubricant oil simply and effectively at cylinder liner place.
According to the present invention, this object is by having the cylinder liner for large-scale diesel engine of the feature of claim 1 and being met by the method for the eigenvalue of the determination lubricant film of the feature with claim 12.
Dependent claims relates to particularly advantageous mode of execution of the present invention.
Thus, the present invention relates to a kind of cylinder liner for large-scale diesel engine, this cylinder liner comprises:
-piston, this piston is arranged to move around displaceably along the cylinder-bore axis of described cylinder liner in described cylinder liner;
The upside of-described piston, limits combustion space with the running surface of described cylinder liner on the upside of this together with being arranged in the cylinder head at described cylinder liner place; And
-lubricating fitting, this lubricating fitting is used for lubricant oil to introduce in described cylinder liner, and wherein said lubricant oil forms lubricant film in operational conditions in described cylinder liner.
Described cylinder liner comprises at least one passage, and optical element is arranged at least one passage place described, and wherein said optical element is constructed and is arranged so that described lubricant film can irradiate by taking the irradiation beam of electromagnetic radiation form.
Described passage can be arranged in described cylinder head or cylinder wall, is namely arranged in the cover surface of described cylinder liner.The perimeter of described cylinder liner (being namely positioned at the region outside described cylinder liner) can be connected to inner region (being namely positioned at region or the volume of described cylinder liner) by least one passage described.Described passage can preferably be formed in described combustion space.Described passage can be configured to the hollow body with circle or triangle or rectangle or polygonal basal plane.But described passage conically can also extend towards the direction of the inner region of described cylinder liner or perimeter.Described passage can have longitudinal axis, and the described longitudinal axis of described passage can with cylinder-bore axis angulation, the angle particularly between 20 degree and 160 degree, namely described passage thus can with straight or angled manner through described cylinder wall.But described passage can also comprise one or more section, the other longitudinal axis of described one or more section comprises and becomes identical or different angle with described cylinder-bore axis.Final element (can particularly lead on the direction of combustion space) opening being disposed in described passage on the direction of the inner region of described cylinder liner, penetrates in described passage to prevent lubricant oil.Described final element can be optically transparent.
In addition, a part for described passage can be formed as the collecting zone that is positioned on the direction of described inner region.When described collecting zone is closed when moving back and forth by described piston in operational conditions, collecting zone can be understood to closed restriction trapped volume, and wherein lubricant oil collection is in this trapped volume, and forms lubricant film.But described cylinder liner can also comprise two, three or more passages, wherein said two, three or more passages can lead to the inner region of such as described cylinder liner or described collecting zone.Equally, described two, three or more passages can be formed independently of one another, and have at described cylinder liner place or do not have collecting zone, make it possible to test described lubricant film at the difference place of described cylinder liner.But described passage also can lead to gas-swept space.
Described optical element can be arranged in described passage place, is namely arranged in before the opening in described perimeter, is positioned partially in described passage or is arranged in described passage completely.Described optical element can comprise for the source of electromagnetic radiation and/or optical waveguide and/or Detecting element and/or analysis element.Parts or the unit of described optical element can be formed as the source of electromagnetic radiation and/or optical waveguide and/or Detecting element and/or analysis element.But equally, they also can be formed as the parts independent of described optical element.If described source and/or described optical waveguide and/or described Detecting element and/or described analysis element are formed as individual components, then these parts can be connected to each other, so that they exchange data and/or electromagnetic radiation, namely they or even can be communicated with one another by local area network wireless or be transmitted electromagnetic radiation by optical waveguide or wire.
Described source can be such as laser, diode, x-ray radiator or microwave radiometer.Described electromagnetic radiation can be positioned at 1m until 10
-12in the wavelength range of m, be namely such as microwave, infrared radiation, visible ray or X-ray radiation.
Described Detecting element can be such as photovoltaic cell, photomultiplier, photodiode, ccd sensor, semiconductor detector or scintillation counter.Described Detecting element can detect electromagnetic radiation, particularly intensity or dark line spectrum and convert thereof into electromagnetic signal.
Described analysis element can be such as the intergrated circuit of the eigenvalue calculating described lubricant film, controller, control gear or computer.
If motor operates, then piston is made to move around along cylinder-bore axis, and piston ring and the lubricated oil lubrication of cylinder liner.In this respect, described lubricant oil (particularly at inner side or the described collecting zone place on the cover surface of described cylinder liner) in described cylinder liner defines lubricant film.In order to test or analyze described lubricant film, irradiation beam can be launched by described source or by described optical element (when described source is configured to the parts of described optical element), and described lubricant film can be irradiated by described irradiation beam.
In this respect, described irradiation beam is penetrated in described lubricant film, and to launch or the irradiation beam that transmits is absorbed in described lubricant film by the one that exists in described lubricant film or multiple material (particularly molecule).Afterwards, there is total reflection in the interphase boundary place between the gas of described irradiation beam in described lubricant film and described cylinder liner.
Described lubricant oil can comprise liquid part, gaseous parts and/or solid portion.Described lubricant oil can be in particular lubrication oil or cooling and lubricating oil, and such as can comprise the base fluid with one or more additives.
Described lubricant oil, advantageously the composition of specifically described lubricant oil, thus can be irradiated simply or as required, and directly can be tested efficiently in described cylinder liner.In this respect, advantageously excite the characteristic wavelength of described lubricant oil, and utilize the determination of the transport behavior of described lubricant film to draw the conclusion of the concrete property about described lubricant oil.
In one embodiment, described channel arrangement is in the cylinder wall of described cylinder liner, and thus advantageously, described passage can be installed simply or installing and reequiping in the cylinder liner assembled.
In a mode of the present invention, described cylinder liner comprises at least one source for launching described electromagnetic radiation, and described source is constructed such that described irradiation beam can be launched to irradiate described lubricant film as electromagnetic radiation.In this respect, described source is constructed such that described radiation beam comprises the electromagnetic radiation with a wavelength or multiple different wave length.In addition, described optical element can comprise described source in this respect.
Described source can be transmitted in from 1m until 10
-12electromagnetic radiation in the wavelength range of m, wherein can launch the electromagnetic radiation having a wavelength or have multiple different wave length.Described source or can be configured to parts or the unit of described optical element, or it can be constructed to and described optical element independently parts.Thus, different sources or wavelength can be used advantageously to test different eigenvalues.In addition, modularity and the replaceability in described source can thus be strengthened.
In an embodiment of the invention, described optical element comprises optical waveguide, and wherein optical waveguide can be construed as electromagnetic conductor, such as glass fibre.Described optical waveguide can be connected to described source.Because described source can be configured to individual components, therefore described irradiation beam can be passed to described lubricant film by described optical wave conduction.Described optical waveguide can advantageously be arranged very simply (namely installing) in described passage.
In an embodiment of the invention, described cylinder liner comprises Detecting element, and this Detecting element is constructed such that this Detecting element detects the detection beam that returns from described lubricant film and converts described detection beam to signal, particularly detects the intensity of described detection beam or dark line spectrum and convert described intensity or described dark line spectrum to signal.Equally, described cylinder liner comprises analysis element, and the described signal that this analysis element is configured to pass through detected detection beam determines the eigenvalue of the feature characterizing described lubricant film.The characteristic of material can tested the characteristic of lubricant oil, lubrication oil additive or produce when power operation, such as, described material is in engine components wearing and tearing or there will be when corroding or when bringing non-burning, partial combustion or the fuel of burning or the products of combustion of above-mentioned substance or reaction product into.Specifically, the eigenvalue of the reflex behavior of the thickness of base number (BN), iron content, granule content (especially the content of catalyst residue or catalyst), viscosity, oil ageing thing content, dirtization, electric conductivity or dielectric parameter, lubricant film and lubricant film or lubricant oil, transport behavior and absorption behavior can be confirmed as described eigenvalue.Thus advantageously, the described lubricant oil in described cylinder liner or lubricant film can simply and efficiently be tested.
In an embodiment of the invention, described optical element comprises described Detecting element and/or described analysis element.The advantage of this measure is integrated in described optical element described Detecting element and/or described analysis element, makes the described optical element by being arranged in described passage place test described lubricant film in a simple manner decoupled.
In an embodiment of the invention, described cylinder liner comprises one or more passage, and described one or more passage comprises collecting zone.In this respect, described one or more passage is arranged such that described one or more passage leads to described collecting zone, and described collecting zone can be formed the restriction trapped volume closed.Described collecting zone can be configured to a part for described passage, and compared to the diameter of described passage, this part has small diameter or same diameter, and preferably has the diameter of larger diameter or increase.Namely described collecting zone towards the direction of described inner region conically shape, can have the diameter of increase.Described collecting zone can be configured to such as taper shape, cylindrical shape or pyramid.Advantageously, eigenvalue can be determined simply with reference to limited trapped volume.
The invention still further relates to a kind of method determining the eigenvalue of lubricant film, especially, described lubricant film is the lubricant film in the cylinder liner any one of claim 1 to 11, and the method comprises:
-irradiating step, in this irradiating step, by lubricant film described in the electromagnetic radiation irradiation of irradiation beam; And
-detecting step, in this detecting step, detects the detection beam that returns from described lubricant film and converts this detection beam to signal, especially, detects the intensity of this detection beam or dark line spectrum and converts this intensity or dark line spectrum to signal.In analytical procedure, determine described eigenvalue according to the signal of detected detection beam.
In an embodiment of the invention, in step of transmitting, described electromagnetic radiation is launched as irradiation beam from source, to irradiate described lubricant film.
In an embodiment of the invention, the wavelength of described irradiation beam is selected such that the absorption of the electromagnetic radiation excited in lubricant oil described detection beam.
In an embodiment of the invention, in analytical procedure, calculate the amplitude ratio of the detected amplitude of described detection beam and the irradiation amplitude of described irradiation beam.
Described method can be described below: in irradiating step, irradiates lubricant film by the irradiation beam from optical element.At liquid (lubricant oil) the interphase boundary place to gaseous state (such as deaeration or combustion space gas), described irradiation beam generation total reflection, thus becomes the reflection detection beam returned towards channel direction.If described passage leads to described gas-swept space, then this even can amplify the effect of the total reflection at interphase boundary place.In this respect, described irradiation beam and described detection beam pass twice through described lubricant film, and some energy of wherein said irradiation beam and detection beam are absorbed.In detecting step, described detection beam is detected and is converted into signal.Determined the eigenvalue of the feature characterizing described lubricant film by means of described signal by described analysis element in analytical procedure.In analytical procedure, such as, can calculate the amplitude ratio of the detected amplitude of described detection beam and the irradiation amplitude of described irradiation beam in this respect.
Obviously, apparent any suitable combination according to the embodiment of the present invention and further simple modifications of the present invention are also covered by the invention, even if it is also like this for not being described clearly in this application for a person skilled in the art.
For the present invention importantly, the measure proposed finally has following result: by determine the eigenvalue of lubricant film method and can according to required and test lubricant film or lubricant oil efficiently, as far as possible simply by described cylinder liner.
Accompanying drawing explanation
In more detail the present invention is described with reference to schematic diagram hereinafter.Accompanying drawing shows:
Fig. 1 is according to first mode of execution with the cylinder liner of passage and optical element of the present invention;
Fig. 2 is according to second mode of execution with the cylinder liner of passage and optical element of the present invention;
Fig. 3 is according to the 3rd mode of execution with the cylinder liner of passage of the present invention;
Fig. 4 is according to the 4th mode of execution with the cylinder liner of passage of the present invention; And
Fig. 5 is the schematic diagram of total reflection principle.
Embodiment
Schematically show according to the cover of the respective cylinder for large-scale diesel engine (especially for uniflow scavenging formula large two-stroke diesel engine) 1 of the present invention in Fig. 1 to Fig. 4, for the purpose of clear, in Fig. 1 to Fig. 4, only partially illustrate this cylinder liner 1 in a cutaway.
Fig. 1 shows according to the cylinder liner 1 with passage 13 and optical element 5 of the present invention.Cylinder liner 1 comprises the piston that do not illustrate in greater detail (see Fig. 3, reference character 12), this piston is arranged to move around by the cylinder-bore axis A along cylinder liner 1 under operation and installation state between top dead center OT and lower dead center, thus the upside of piston limits combustion space 15 with the running surface (not shown) of cylinder liner 1 together with being arranged in the cylinder head (not shown) at cylinder liner 1 place.In addition, cylinder liner 1 comprises the lubricating fitting (not shown) for being introduced by lubricant oil in cylinder liner 1, and wherein in operational conditions, lubricant oil forms lubricant film 2 in cylinder liner 1.
According to the present invention, cylinder liner 1 comprises at least one passage 13, and optical element 5 is arranged in passage 13 place, and wherein optical element 5 is constructed and arranged to make it possible to taking irradiation beam 3 pairs of lubricant films 2 of electromagnetic radiation form to irradiate.
As shown in Figure 1, passage 13 is formed in the cylinder wall 11 of cylinder liner 1, and the perimeter of cylinder liner 1 is connected to the inner region of cylinder liner 1, is particularly connected to combustion space 15 or gas-swept space.In this respect, passage 13 preferably can be configured to straight hole.In addition, passage 13 comprises the final element 14 on the direction of the inner region being arranged in cylinder liner 1.Passage 13 is closed by final element 14, thus prevents lubricant oil from can spread in passage 13.In this respect, final element 14 is transparent for used electromagnetic radiation, and transmission is irradiated and detection beam 3,4.
Cylinder liner 1 also comprises at least one source 6 for electromagnetic radiation-emitting, wherein source 6 be constructed such that can using irradiation beam 3 as electromagnetic radiation to irradiate lubricant film 2.In addition, source 6 is constructed such that irradiation beam 3 comprises the electromagnetic radiation with a wavelength or different wave length.As shown in Figure 1, optical element 5 and source 6 are configured to two unit separated or parts.But optical element 5 also can comprise source 6, that is, source 6 is configured to unit or the parts of optical element 5, and is integrated in optical element (see Fig. 2).
Optical element 5 comprises optical waveguide 7, and wherein optical waveguide 7 is connected to source 6.Optical waveguide 7 is disposed in passage 13, and is conducted from source 6 by irradiation beam 3 or be transferred to lubricant film 2, and wherein irradiation beam 3 particularly can be transmitted in lubricant film 2 by optical waveguide 7 by optical element 5, or lubricant film can be irradiated by irradiation beam 3.
Cylinder liner 1 also comprises Detecting element 8, wherein Detecting element 8 is constructed such that Detecting element 8 detects the detection beam 4 returned from lubricant film 2, particularly detect intensity or the dark line spectrum of detection beam 4, and Detecting element 8 converts the intensity of detection beam 4 or dark line spectrum to signal.The optical filter 81 that wavelength to be detected filters out from detection beam 4 is arranged in before Detecting element 8.
Cylinder liner 1 also comprises analysis element 9, and wherein analysis element 9 is configured to the eigenvalue determining the feature characterizing lubricant film 2.In FIG, Detecting element 8 and analysis element 9 are configured to the unit that separates with optical element 5 or parts, and that is in this first mode of execution, optical element only comprises and to detect detection beam 4 and detection beam 4 to be transferred to the optical waveguide 7 of Detecting element 8 (detection beam is detected at this Detecting element 8 place).In other embodiments, such as in the second mode of execution shown in Fig. 2, optical element 5 can also comprise source 6 and/or Detecting element 8 and/or analysis element 9, and namely source and/or Detecting element 8 and/or analysis element 9 also can be configured to the unit of optical element 5.
Fig. 2 shows according to second mode of execution with the cylinder liner 1 of passage 13 and optical element 5 of the present invention.First mode of execution of the design of cylinder liner 1 and the cylinder liner 1 of Fig. 1 has some common features, therefore only sees difference.In this second embodiment, optical element 5 comprises source (see Fig. 1, reference character 6), Detecting element (see Fig. 1, reference character 8) and analysis element (see Fig. 1, reference character 9), namely they as unit or component integration in optical element 5.In this second embodiment, optical element 5 can such as comprise as source and the diode as Detecting element, by this diode, can launch irradiation beam 3 and detect detection beam 4.In this, analysis element 9 can such as be configured to be integrated into the parts in optical element 5.Optical element 5 is also connected to control unit 10 by such as wire, and this control unit 10 is processing feature value further.
Fig. 3 shows according to the 3rd mode of execution with the cylinder liner 1 of passage 13 of the present invention.First and second mode of executions of the design of cylinder liner 1 and the cylinder liner of Fig. 1 and Fig. 2 have some common features, therefore only see difference hereinafter.In the third embodiment, cylinder liner 1 comprises multiple passage 13,131,132, here be the first and second passage 131 and 132 and collecting zones 16, wherein passage 13,131,132 is arranged such that they lead to collecting zone 16, and collecting zone 16 can be configured to the restriction trapped volume closed.First and second passages 13,131,132 and cylinder-bore axis A or cylinder wall 11 angled.In addition, passage 13,131,132 arranges forming V-shape.Collecting zone 16 is configured to the depression being arranged in cylinder wall 11, and when collecting zone 16 is closed by piston 12, this collecting zone 16 is formed and limits trapped volume, and lubricant oil collection is in this volume and form lubricant film 2.Irradiation beam 3 is radiated in a passage in two passages 13, such as, in first passage 131, or it is (not shown that optical element 5 is configured to such as optical waveguide, see Fig. 1, reference character 7) and/or source (not shown, see Fig. 1, reference character 5) and be arranged in first passage 131.On the contrary, in second channel 132, detection beam 4 is detected, or it is (not shown that optical element 5 is configured to such as optical waveguide, see Fig. 1, reference character 7) and/or Detecting element (not shown, see Fig. 1, reference character 8) and/or analysis element (not shown, see Fig. 1, reference character 9) and be disposed in second channel 132.Irradiation beam 3 is radiated in collecting zone 16, namely irradiates lubricant oil or is radiated at the lubricant film formed in collecting zone 16.Irradiation beam 3 reflects at interphase boundary (not shown) place, and as reflection detection beam 4 again through the lubricant film 2 in collecting zone 16, and detected in second channel 132 by Detecting element (not shown) subsequently, or by optical waveguide (not shown) directed forwards such as to this Detecting element.
Fig. 4 shows according to the 4th mode of execution with the cylinder liner 1 of passage 13 of the present invention.First, second or the 3rd mode of execution of the design of cylinder liner 1 and the cylinder liner of Fig. 1, Fig. 2 or Fig. 3 have some common features, therefore only see difference hereinafter.In the diagram, passage 13 leads to collecting zone 16, and passage 13 is similar to the angle of 90 degree with cylinder-bore axis A or cylinder wall 11 one-tenth.Irradiation beam 3 and detection beam 4 come radiation or detection by this passage 13.It is (not shown that optical element 5 is configured to such as optical waveguide, see Fig. 1, reference character 7) and/or source (not shown, see Fig. 1, reference character 5) and/or Detecting element (not shown, see Fig. 1, reference character 8) and/or analysis element (not shown, see Fig. 1, reference character 9), and be disposed in passage 13.Irradiation beam 3 is radiated in collecting zone 16, namely irradiates lubricant oil or is radiated at the lubricant film formed in collecting zone 16.Irradiation beam 3 reflects at interphase boundary (not shown) place, and as reflection detection beam 4 again through the lubricant film 2 in collecting zone 16, and is detected in second channel 13 by Detecting element (not shown) subsequently, or pass through such as optical waveguide (not shown) directed forwards to this Detecting element.Although do not illustrate the combination of the 3rd mode of execution shown in Fig. 3 and Fig. 4 and the 4th mode of execution, this combination is feasible equally.
In addition, the mode of execution shown in Fig. 1 to Fig. 4 can be utilized to perform according to the method determining the eigenvalue of lubricant film 2 (lubricant film 2 in the cylinder liner 1 particularly any one of claim 1 to 11) of the present invention.The method comprises:
-irradiating step, in this irradiating step, by the electromagnetic radiation irradiation lubricant film 2 of irradiation beam; And
-detecting step, in this detecting step, detects the detection beam 4 (particularly detecting intensity or the dark line spectrum of this detection beam) returned from lubricant film 2, and converts detection beam 4 to signal.In this respect, in analytical procedure, the eigenvalue of lubricant film 2 is determined according to the signal of detected detection beam.In step of transmitting, irradiation beam 3 is launched from source 6 as electromagnetic radiation, to irradiate lubricant film 2.In this respect, the wavelength of irradiation beam 3 is selected such that the absorption exciting the electromagnetic radiation to this irradiation beam 3 in lubricant oil 2.
Described method is performed as follows for the cylinder liner described in claim 1 to 11.Irradiation beam 3 is launched by source 6, and is transmitted in passage 13 by optical element 5 (being optical waveguide 7 here).Irradiation beam 3 is transmitted near the inwall being formed with lubricant film 2 of cylinder liner 1 by the optical waveguide 7 in passage 13.In this respect, irradiation beam 3 transmits through final element 14 and is transmitted to subsequently in lubricant film 2.With one or more different characteristic wavelength emission or be transferred to irradiation beam 3 in lubricant film 2 and be absorbed in lubricant film 2 by the one that exists in lubricant film 2 or multiple material (particularly molecule).In addition, in this respect, other mechanism of such as fluorescence or scattering also can play a role.Hereinafter, the interphase boundary place between the gas (not shown) and lubricant film 2 at the inner region place of cylinder liner 1 utilizes the principle of total reflection.Irradiation beam reflects at liquid (lubricant oil) interphase boundary place with gaseous state (such as scavenging or combustion space gas), thus becomes the reflection detection beam 4 returned on the direction of passage 13.Detection beam is detected by optical waveguide 7 and is transferred to Detecting element 8 via optical filter 81, is leached by wavelength to be detected by this optical filter 81 from detection beam.Detection beam is detected and is converted into signal in Detecting element 8, is determined the eigenvalue of the feature characterizing lubricant film 2 by analysis element 9 by means of described signal.In analytical procedure, amplitude and the amplitude ratio of the detected amplitude of detection beam and the irradiation amplitude of irradiation beam can be calculated in this.Therefore the conclusion of the concrete property about lubricant oil can be drawn with reference to the determination of the transport behavior of lubricant film.
Fig. 5 shows the schematic diagram of total reflection principle.In this respect, irradiation beam 3 is arranged into the left side of optical axis B with the angle being greater than critical angle G.At interphase boundary place, there is total reflection in irradiation beam 3, and become the irradiation beam 4 on the right side being positioned at optical axis B.Total reflection is well-known phenomenon in electromagnetic wave (such as visible ray).Total reflection occurs in the intersection of two media, and described two media does not absorb or only absorbs a bit, and will have different velocity of propagation when reference angle exceedes occurrence (i.e. so-called cirtical angle of total reflection G).From there is the optically denser medium of refractive index n1 and thus the irradiation beam 3 inciding the optically thinner medium with refractive index n2 can not be reflexed in second medium more, but almost reflexed in optically denser medium n1 completely.
Claims (15)
1., for a cylinder liner for large-scale diesel engine, this cylinder liner comprises:
-piston (12), this piston (12) is arranged to move around displaceably by the cylinder-bore axis (A) along described cylinder liner (1) in described cylinder liner (1);
The upside of-described piston (12), limits combustion space with the running surface of described cylinder liner (1) on the upside of this together with being arranged in the cylinder head at described cylinder liner (1) place;
-lubricating fitting, this lubricating fitting is used for lubricant oil to introduce in described cylinder liner (1), and wherein said lubricant oil forms lubricant film (2) in operational conditions in described cylinder liner (1),
It is characterized in that,
Described cylinder liner (1) comprises at least one passage (13), and optical element (5) is arranged in described at least one passage (13) place, wherein said optical element (5) is constructed and is arranged so that described lubricant film (2) can irradiate by taking the irradiation beam (3) of electromagnetic radiation form.
2. cylinder liner according to claim 1, wherein, described at least one passage (13) is arranged in the cylinder wall (11) of described cylinder liner (1).
3. cylinder liner according to claim 1 and 2, wherein, described cylinder liner (1) comprises at least one source (6) for launching described electromagnetic radiation, and at least one source described (6) is constructed such that described irradiation beam (3) can be launched to irradiate described lubricant film (2) as electromagnetic radiation.
4. cylinder liner according to claim 3, wherein, described optical element (5) comprises described at least one source (6).
5. the cylinder liner according to claim 3 or 4, wherein, described at least one source (6) is constructed such that described irradiation beam (3) comprises the electromagnetic radiation with a wavelength or multiple different wave length.
6. according to cylinder liner in any one of the preceding claims wherein, wherein, described optical element (5) comprises optical waveguide (7).
7. cylinder liner according to claim 6, wherein, described optical waveguide (7) is connected to described at least one source (6).
8. according to cylinder liner in any one of the preceding claims wherein, wherein, described cylinder liner (1) comprises Detecting element (8), and this Detecting element (8) is constructed such that described Detecting element (8) detects the detection beam (4) that returns from described lubricant film (2) and converts described detection beam (4) to signal, especially, detect the intensity of described detection beam (4) or dark line spectrum and convert described intensity or dark line spectrum to signal.
9. cylinder liner according to claim 8, wherein, described cylinder liner (1) comprises analysis element (9), and the described signal that this analysis element (9) is configured to pass through detected detection beam (4) determines the eigenvalue of the feature characterizing described lubricant film (2).
10. according to cylinder liner in any one of the preceding claims wherein, wherein, described optical element (5) comprises described Detecting element (8) and/or described analysis element (9).
11. according to cylinder liner in any one of the preceding claims wherein, wherein, described cylinder liner (1) comprises collecting zone (16) and one or more passage (13,131,132), wherein said one or more passage (13,131,132) described one or more passage (13 is arranged such that, 131,132) lead to described collecting zone (16), and described collecting zone (16) can be formed the restriction trapped volume closed.
12. 1 kinds of methods determining the eigenvalue of lubricant film (2), especially, described lubricant film (2) is the lubricant film (2) in the cylinder liner (1) according to any one of claim 1 to 11, and the method comprises:
-irradiating step, in this irradiating step, by lubricant film (2) described in the electromagnetic radiation irradiation of irradiation beam (3); And
-detecting step, in this detecting step, detect the detection beam (4) that returns from described lubricant film (2) and convert this detection beam (4) to signal, especially, detect the intensity of described detection beam (4) or dark line spectrum and convert described intensity or dark line spectrum to signal
It is characterized in that,
In analytical procedure, the described signal according to detected detection beam (4) determines described eigenvalue.
13. methods according to claim 12, wherein, in step of transmitting, launch described electromagnetic radiation from source as irradiation beam, to irradiate described lubricant film.
14. methods according to claim 12 or 13, wherein, the wavelength of described irradiation beam is selected such that the absorption of the electromagnetic radiation excited in lubricant oil described detection beam.
15. according to claim 12 to the method according to any one of 14, wherein, in described analytical procedure, calculates the amplitude ratio of the detected amplitude of described detection beam and the irradiation amplitude of described irradiation beam.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP14179223.4 | 2014-07-31 | ||
| EP14179223 | 2014-07-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105317581A true CN105317581A (en) | 2016-02-10 |
Family
ID=51260670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510445437.0A Pending CN105317581A (en) | 2014-07-31 | 2015-07-27 | Cylinder liner for large diesel engine and method for determining characteristic values of lubricating oil film |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2980372A1 (en) |
| JP (1) | JP2016035260A (en) |
| KR (1) | KR20160016599A (en) |
| CN (1) | CN105317581A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109763872A (en) * | 2017-11-09 | 2019-05-17 | 温特图尔汽柴油公司 | Lubricating utensil for large-sized diesel motor |
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| EP0658757A1 (en) * | 1993-12-16 | 1995-06-21 | Shell Internationale Researchmaatschappij B.V. | A method and apparatus for non-intrusive in situ chemical analysis of a lubricant film in running reciprocating machinery |
| CN1052441C (en) * | 1993-12-20 | 2000-05-17 | 弗赖亚特克陶器及塑料工厂有限公司 | Electric soldering method |
| GB2357556B (en) * | 1999-12-24 | 2002-11-06 | Univ Central Lancashire | Lubrication control system |
| EP1643088A1 (en) * | 2003-08-07 | 2006-04-05 | Wärtsilä Schweiz AG | Method and device for the lubrication of an internal combustion engine |
| CN101329167A (en) * | 2008-07-11 | 2008-12-24 | 西安交通大学 | Dynamic measurement method of slide bearing lubricating film and fiber optic sensor for measurement |
| US8093913B2 (en) * | 2008-04-24 | 2012-01-10 | Ihi Corporation | Film thickness measurement device and method |
| CN202522201U (en) * | 2011-11-30 | 2012-11-07 | 武汉理工大学 | Device for detecting oil film thickness between cylinder liner and piston ring for diesel engine |
| CN102365430B (en) * | 2009-04-06 | 2014-04-30 | 瓦锡兰瑞士公司 | Monitoring device and monitoring method for monitoring a state of wear of a component of a reciprocating internal combustion engine |
| CN102175166B (en) * | 2011-02-16 | 2014-07-02 | 武汉理工大学 | Device for detecting thickness of oil film between cylinder sleeve and piston ring of diesel engine |
-
2015
- 2015-07-02 JP JP2015133320A patent/JP2016035260A/en active Pending
- 2015-07-06 EP EP15175408.2A patent/EP2980372A1/en not_active Withdrawn
- 2015-07-10 KR KR1020150098453A patent/KR20160016599A/en unknown
- 2015-07-27 CN CN201510445437.0A patent/CN105317581A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4956558A (en) * | 1989-03-16 | 1990-09-11 | Battelle Memorial Institute | System for measuring film thickness |
| EP0658757A1 (en) * | 1993-12-16 | 1995-06-21 | Shell Internationale Researchmaatschappij B.V. | A method and apparatus for non-intrusive in situ chemical analysis of a lubricant film in running reciprocating machinery |
| CN1052441C (en) * | 1993-12-20 | 2000-05-17 | 弗赖亚特克陶器及塑料工厂有限公司 | Electric soldering method |
| GB2357556B (en) * | 1999-12-24 | 2002-11-06 | Univ Central Lancashire | Lubrication control system |
| EP1643088A1 (en) * | 2003-08-07 | 2006-04-05 | Wärtsilä Schweiz AG | Method and device for the lubrication of an internal combustion engine |
| US8093913B2 (en) * | 2008-04-24 | 2012-01-10 | Ihi Corporation | Film thickness measurement device and method |
| CN101329167A (en) * | 2008-07-11 | 2008-12-24 | 西安交通大学 | Dynamic measurement method of slide bearing lubricating film and fiber optic sensor for measurement |
| CN102365430B (en) * | 2009-04-06 | 2014-04-30 | 瓦锡兰瑞士公司 | Monitoring device and monitoring method for monitoring a state of wear of a component of a reciprocating internal combustion engine |
| CN102175166B (en) * | 2011-02-16 | 2014-07-02 | 武汉理工大学 | Device for detecting thickness of oil film between cylinder sleeve and piston ring of diesel engine |
| CN202522201U (en) * | 2011-11-30 | 2012-11-07 | 武汉理工大学 | Device for detecting oil film thickness between cylinder liner and piston ring for diesel engine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109763872A (en) * | 2017-11-09 | 2019-05-17 | 温特图尔汽柴油公司 | Lubricating utensil for large-sized diesel motor |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2980372A1 (en) | 2016-02-03 |
| KR20160016599A (en) | 2016-02-15 |
| JP2016035260A (en) | 2016-03-17 |
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