SE539320C2 - Arrangement and method for maintenance of a cylinder liner in an engine - Google Patents
Arrangement and method for maintenance of a cylinder liner in an engine Download PDFInfo
- Publication number
- SE539320C2 SE539320C2 SE1551466A SE1551466A SE539320C2 SE 539320 C2 SE539320 C2 SE 539320C2 SE 1551466 A SE1551466 A SE 1551466A SE 1551466 A SE1551466 A SE 1551466A SE 539320 C2 SE539320 C2 SE 539320C2
- Authority
- SE
- Sweden
- Prior art keywords
- arrangement
- liner
- cylinder
- processing machine
- cylinder liner
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B13/00—Control arrangements specially designed for centrifuges; Programme control of centrifuges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
- B04B1/10—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with discharging outlets in the plane of the maximum diameter of the bowl
- B04B1/14—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with discharging outlets in the plane of the maximum diameter of the bowl with periodical discharge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B11/00—Feeding, charging, or discharging bowls
- B04B11/04—Periodical feeding or discharging; Control arrangements therefor
- B04B11/043—Load indication with or without control arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B11/00—Feeding, charging, or discharging bowls
- B04B11/08—Skimmers or scrapers for discharging ; Regulating thereof
- B04B11/082—Skimmers for discharging liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B33/00—Honing machines or devices; Accessories therefor
- B24B33/06—Honing machines or devices; Accessories therefor with controlling or gauging equipment
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/08—Measuring arrangements characterised by the use of optical techniques for measuring diameters
- G01B11/12—Measuring arrangements characterised by the use of optical techniques for measuring diameters internal diameters
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
11 ABSTRACT The invention relates to an arrangement (1) for maintenance of acylinder liner (2) in an engine. The arrangement (1) comprises a measuringdevice (3) adapted to measure a shape of the cylinder liner (2) to determineits operational conditions, and a liner processing machine (4) for maintainingthe cylinder liner (2) to optimize the operational conditions of the cylinder liner(2). The measuring device (3) is attached to the liner processing machine (4)and rotatable with or in relation to the liner processing machine (4). Theinvention also relates to a method for maintenance of a cylinder liner in anengine by means of an arrangement. Elected for publication: Fig. 1.
Description
ARRANGEMENT AND METHOD FOR MAINTENANCE OF A CYLINDERLINER IN AN ENGINE Technical fieldThe invention relates to an arrangement and a method for maintenance of a cylinder liner in an engine.
Background artln order to optimise the operational conditions of marine engines and to prevent shutdowns to the largest extent possible, the operational state of theengines is checked at regular intervals. One common cause for impairedengine state or for shutdowns is that the piston rings have become worn-outor burnt and consequently need to be replaced. Experience has shown,however, that the cause may equally well be the cylinder liners which, whenexamined, have been found to be in a worn state or to no longer exhibit adesired surface because of depositions of soot or of abrasive or corrosiveattacks on the cylinder liner walls. Attacks of this kind might be due tosulphurous fuel used to operate the engine, which in combination with steamproduces sulphuric acid that condenses at predetermined temperature andpressure levels in the engine. The effects on the cylinder liner from forexample corrosion attacks are localised because of the uneven distribution ofcylinder oil, of gas leakage via openings, such as passages between pistonrings and cylinder liner, and/or variations of the cylinder liner walltemperature.
Cylinder liner checks therefore extremely important to determinewhether the heat stress or other damage, to which the cylinder liner has beenexposed has caused the liner to deform, resulting in the liner adopting an ovalshape or a trumpet shape with a larger diameter in the top end. lf any defectsor deviations in the cylinder liner is detected it is vital to alleviate the same assoon as possible. ln order to obtain measurements of a cylinder liner using the devicesavailable today one must dismantle several engine parts before arranging ameasuring device in the cylinder liner or before a person climbs into the cylinder liner performing said measurements. Thereafter, if necessary,machinery is arranged in the cylinder liner in order to perform maintenance ofthe same.The process described above is comprehensive and complicated. lt also requires a plurality of different machinery to perform measurements andmaintenance.
Summarv of the invention lt is an object of the present invention to mitigate, alleviate or eliminateone or more of the above-identified deficiencies in the art and disadvantagessingly or in any combination and solve at least the above mentioned problem.
According to a first aspect, these and other objects are achieved in full,or at least in part, by an arrangement for maintenance of a cylinder liner in anengine. The arrangement comprises a measuring device adapted to measurea shape of the cylinder liner to determine its operational conditions, and aliner processing machine for maintaining the cylinder liner to optimize theoperational conditions of the cylinder liner. The measuring device is attachedto the liner processing machine and rotatable with or in relation to the linerprocessing machine. The measuring device and the liner processing machineare detachable from each other. By using the inventive arrangementdescribed above the overall maintenance process of the cylinder liner issimplified. Since the same arrangement is used for both determination andoptimization of the operation conditions of the cylinder liner, the overallprocess is made more time and cost efficient.
The measuring device may be rotatable in a plane which isperpendicular to a central axis of the cylinder liner and adapted to providemeasurements in said plane and substantially in a radial direction in relationto the cylinder liner. This way, measurement may be performed around theentire circumference of the cylinder liner so that a complete overview of thecondition of the liner may be provided. ln order to make the maintenanceprocess even more efficient and potentially automated, the arrangement mayfurther comprise a control unit adapted to analyze measurements provided bysaid measuring device and to control said liner processing machine based on said measurements. ln the later regard, the arrangement may also comprisea rotation motor.
The arrangement may comprise a fixed part and a movable part,wherein the liner processing machine is attached to the movable part. ln orderto enhance the accuracy of the arrangement, it may further comprise a sensorconfigured to indicate an altitude of the movable part along a normal to theplane. ln one preferred embodiment of the invention, the measuring devicemay be attached to an upper portion of said liner processing machine, andcomprise a laser device, a probe/sensor and/or a camera.
According to a second aspect, the objects are achieved in full, or atleast in part, by a method for maintenance of a cylinder liner in an engine bymeans of an arrangement. The arrangement comprises a measuring deviceadapted to measure a shape of the cylinder liner to determine its operationalconditions, and a liner processing machine for maintaining the cylinder liner tooptimize the operational conditions of the cylinder liner. The measuring deviceis releasably attached to the liner processing machine and rotatable with or inrelation to the liner processing machine. The method comprises the steps ofmeasuring a shape of the cylinder liner to determine its operationalconditions, and maintaining the cylinder liner to optimize the operationalconditions of the cylinder liner. The same advantages as described for thearrangement above also apply for this inventive method.
The method may further comprise the step of analyzing measurementsprovided in the step of measuring a shape of the cylinder liner to determine itsoperational conditions, and controlling the step of maintaining the cylinderliner to optimize the operational conditions of the cylinder liner based on themeasurements.
Generally, all terms used in the claims are to be interpreted accordingto their ordinary meaning in the technical field, unless explicitly definedotherwise herein. All references to “a/an/the [element, device, component,means, step, etc.]” are to be interpreted openly as referring to at least oneinstance of the element, device, component, means, step, etc., unlessexplicitly stated otherwise.
Brief description of the drawinqs The above objects, as well as additional objects, features andadvantages of the present invention, will be more fully appreciated byreference to the following illustrative and non-limiting detailed description ofpreferred embodiments of the present invention, when taken in conjunctionwith the accompanying drawings, wherein: Fig. 1 is an exemplary embodiment of an arrangement according to afirst aspect of the invention.
Fig. 2 is an exemplary embodiment of a method according to a secondaspect of the invention.
Detailed description of preferred embodiments of the inventionFig. 1 illustrates an arrangement 1 for maintenance of a cylinder liner 2 in an engine according to one exemplary embodiment of the invention. Thearrangement 1 comprises a measuring device 3 which is used in order tomeasure a shape of the cylinder liner 2 to determine its operationalconditions. The arrangement 1 further comprises a liner processing machine4 for maintaining the cylinder liner 2 to optimize the operational conditions ofthe cylinder liner. The measuring device 3 is attached to the liner processingmachine 4 and rotatable with or in relation to the liner processing machine 4.ln this specific embodiment, the liner processing machine 4 is a honing devicecomprising an outer frame element 5 which is placed outside of the cylinderliner 2 to be processed. The honing device 4 further has a carrier 6 movablein a vertical direction of the arrangement 1 by means of a wire 7 which in turnis connected to a motor 8. The carrier 6 is thus connected to the wire 7 at oneend, and to a honing unit 11 at the other end via a rotation motor 9. Therotation motor 9 is used to rotate the honing unit 11. The measuring device 3is placed on top of the honing unit 11 in order to co-rotate with the same bymeans of the rotation motor 9. Accordingly, the measuring device 3 (as wellas the honing unit 11) is rotatable in a plane which is perpendicular to acentral axis of the cylinder liner 2 and adapted to provide measurements in that plane and substantially in a radial direction in relation to the cylinder liner2.
The measuring device 3 co-rotates with the honing unit 11 andcomprises a laser device, a probe/sensor and/or a camera (not shown) inorder to carry out the measurements. Further, the measuring device 3comprises transferring means (not shown) so that the measurements can betransferred to a receiving unit of some sort (in this case the control unitdescribed below).
The arrangement 1 further comprises a control unit 10 which is used toanalyze the measurements provided by the measuring device 3 and to controlthe honing device 4 based on these measurements.
An exemplary maintenance process of the cylinder liner 2 using thearrangement 1 will now be described in greater detail. lnitially, the outer frameelement 5 is mounted above the cylinder liner 2 to be processed. Thereafter,the carrier 6 is submerged into the cylinder liner 2 by means of the wire 7 andthe motor 8. When the honing unit 11, which is attached at the lower end ofthe carrier 6, has reached the right vertical position within the cylinder liner 2,the initial measurements of the shape of the cylinder liner 2 to determine itsoperational conditions can be obtained. Here, it should be mentioned that thearrangement 1 preferably comprises a sensor (not shown) which is used toindicate the altitude (in the vertical direction) of the measuring device 3 andthe honing unit 11. The measuring device 3 is fixated and centred in relationto the cylinder liner 2 by means of the honing unit 11. The honing unit 11 andthe measuring device 3 are now rotated by means of the rotation motor 9 sothat the measuring device 3 can measure the shape of the cylinder liner 2.The measurements are thereafter transferred to the control unit 10. lfnecessary, additional measurements, at other altitudes, within the cylinderliner 2 are performed. When all of the necessary measurements have beenperformed and transferred to the control unit 10, the control unit 10 willanalyze the measurements to determine the operational conditions of thecylinder liner 2. The final step of the maintenance process is thereafterperformed and includes a honing process of the inner surface of the cylinderliner 2 by means of the honing unit 11 which is based on measurements provided by the control unit 10. During the honing process, the honing unit 11is submerged to the right altitude. Thereafter, the honing unit 11 is rotated bythe rotation motor 9 while being moved up and down in a vertical direction bymeans of the motor 8. This way, any desired pattern can be created on theinner surface of the cylinder liner 2. This final step of the maintenanceprocess is also controlled by the control unit 10.
Fig. 2 illustrates a method for maintenance of a cylinder liner in anengine by means of an arrangement. The method is not limited to thearrangement described herein but the arrangement should comprise ameasuring device adapted to measure a shape of the cylinder liner todetermine its operational conditions, and a liner processing machine formaintaining the cylinder liner to optimize the operational conditions of thecylinder liner. The measuring device is attached to the liner processingmachine and rotatable with the liner processing machine. The inventivemethod comprises the steps of measuring a shape of the cylinder liner todetermine its operational conditions, analyzing the measurements provided inthe step of measuring the shape of the cylinder liner, maintaining the cylinderbased on the measurements to optimize the operational conditions of thecylinder liner, and controlling the step of maintaining the cylinder liner tooptimize the operational conditions of the cylinder based on themeasurements or based on predetermined information regarding the cylinderliner. Such information could preferably be stored in a control unit connectedto the arrangement. lt is understood that other variations in the present invention arecontemplated and in some instances, some features of the invention can beemployed without a corresponding use of other features. Accordingly, it isappropriate that the appended claims be construed broadly in a mannerconsistent with the scope of the invention.
The arrangement can be adapted for use in a piston based combustionengine. Then again, any other suitable implementation of the arrangement isnaturally also possible.
The liner processing machine is not limited to a honing device but canbe constituted by any device suitable for maintenance of a cylinder liner.
Claims (11)
1. An arrangement (1) for maintenance of a cylinder liner (2) in anengine, comprising a measuring device (3) adapted to measure a shape of said cylinderliner (2) to determine its operational conditions, and a liner processing machine (4) for maintaining said cylinder liner (2) tooptimize said operational conditions of said cylinder liner (2), wherein said measuring device (3) is attached to said liner processingmachine (4) and rotatable with or in relation to said liner processing machine(4).i characterised in that said measuring device (3) and said iiner processing machine (4) are dettachahie from each other.
2. The arrangement (1) according to claim 1, wherein said measuringdevice (3) is rotatable in a plane which is perpendicular to a central axis of thecylinder liner (2) and adapted to provide measurements in said plane andsubstantially in a radial direction in relation to said cylinder liner (2). -í-š=----ïíhe-arifiahgeeieht-(4è--aeeewieg»te-eiaim--Iil--ee-Q-i--whereie--eaid 4ï-»ífhe-ezfzfaegemeei-(iàf-aeee-ifaiiifi-g--te--eiaim-»âl--er--Qï-wiierfeiii-saie»meaeur-ihg--eieviee-(êà--ehd--eaie-iiher--preeeeeiiig--meehihe--iååš-are--ietegraiiyferhieeii- :w _._\\~ ~ » \.« .- å.. . The arrangement (1) according to any one of the precedingclaims, further comprising a control unit (10) adapted to analyzemeasurements provided by said measuring device (3) and to control said linerprocessing machine (4) based on said measurements. -x ______ __The arrangement (1) according to any one of the precedingclaims, wherein said arrangement (1) comprises a rotation motor (9). \\\\\\ “The arrangement (1) according to any one of the precedingclaims, wherein said arrangement (1) comprises a fixed part (5) and amovable part (6), said liner processing machine (4) being attached to saidmovable part (6). \\\\\\ “The arrangement (1) according to claim lä, further comprising asensor configured to indicate an altitude of said movable part (6) along anormal to said plane. ______ __The arrangement (1) according to any one of the precedingclaims, wherein said measuring device (3) is attached to an upper portion ofsaid liner processing machine (4). arrangement (1) according to any one of the preceding claims, wherein said arrangement (1) is adapted for use in a piston basedcombustion engine. arrangement (1) according to any one of the precedingclaims, wherein said measuring device (3) comprises a laser device, a probe/sensor and/or a camera. §É§,__A method for maintenance of a cylinder liner in an engine by means of an arrangement, said arrangement comprising a measuring deviceadapted to measure a shape of said cylinder to determine its operationalconditions, and a liner processing machine for maintaining said cylinder tooptimize said operational conditions of said cylinder, said measuring devicebeing reieasably attached to said liner processing machine and rotatable withor in relation to said liner processing machine, wherein said methodcomprises the steps of measuring a shape of said cylinder to determine its operationalconditions, and maintaining said cylinder to optimize said operational conditions of saidcylinder. method according to claim »Å-QïjHQ, further comprising the stepof analyzing measurements provided in the step of measuring a shape of saidcylinder to determine its operational conditions, and controlling the step ofmaintaining said cylinder to optimize said operational conditions of saidcylinder based on said measurements.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE1551466A SE539320C2 (en) | 2015-11-13 | 2015-11-13 | Arrangement and method for maintenance of a cylinder liner in an engine |
| PCT/EP2016/077446 WO2017081261A1 (en) | 2015-11-13 | 2016-11-11 | Arrangement and method for maintenance of a cylinder liner in an engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE1551466A SE539320C2 (en) | 2015-11-13 | 2015-11-13 | Arrangement and method for maintenance of a cylinder liner in an engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE1551466A1 SE1551466A1 (en) | 2017-05-14 |
| SE539320C2 true SE539320C2 (en) | 2017-06-27 |
Family
ID=20300777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE1551466A SE539320C2 (en) | 2015-11-13 | 2015-11-13 | Arrangement and method for maintenance of a cylinder liner in an engine |
Country Status (2)
| Country | Link |
|---|---|
| SE (1) | SE539320C2 (en) |
| WO (1) | WO2017081261A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111609827B (en) * | 2019-02-26 | 2022-01-11 | 上汽通用汽车有限公司 | Construction method of theoretical precise datum plane of engine cylinder block and engine cylinder block |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3147305A1 (en) * | 1981-11-28 | 1983-06-01 | Emil Pleiger KG Maschinen- und Armaturenfabrik, 4322 Sprockhövel | HON TOOL |
| JP2003019655A (en) * | 2001-07-06 | 2003-01-21 | Niigata Eng Co Ltd | Honing method and honing apparatus for cylinder liner |
| DE10315218B4 (en) * | 2003-04-01 | 2010-12-30 | Nagel Maschinen- Und Werkzeugfabrik Gmbh | Method and device for fine machining a surface of a workpiece |
| JP4427750B2 (en) * | 2005-07-11 | 2010-03-10 | 日産自動車株式会社 | Fine recess processing apparatus and fine recess processing method |
| KR20120083232A (en) * | 2011-01-17 | 2012-07-25 | 그롭-베르케 게엠베하 운트 코. 카게 | Combined precision boring/honing machining method and machining device for implementing the method |
| DE102013203340A1 (en) * | 2013-02-28 | 2014-08-28 | Nagel Maschinen- Und Werkzeugfabrik Gmbh | Method and device for fluidic geometry measurement |
-
2015
- 2015-11-13 SE SE1551466A patent/SE539320C2/en not_active IP Right Cessation
-
2016
- 2016-11-11 WO PCT/EP2016/077446 patent/WO2017081261A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017081261A1 (en) | 2017-05-18 |
| SE1551466A1 (en) | 2017-05-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NUG | Patent has lapsed |