EP2199549A1 - Dispositif de lubrification de cylindre pour moteur à combustion interne - Google Patents

Dispositif de lubrification de cylindre pour moteur à combustion interne Download PDF

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Publication number
EP2199549A1
EP2199549A1 EP09173759A EP09173759A EP2199549A1 EP 2199549 A1 EP2199549 A1 EP 2199549A1 EP 09173759 A EP09173759 A EP 09173759A EP 09173759 A EP09173759 A EP 09173759A EP 2199549 A1 EP2199549 A1 EP 2199549A1
Authority
EP
European Patent Office
Prior art keywords
cylinder
oil
lubricating
lubricating oil
lubricating device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP09173759A
Other languages
German (de)
English (en)
Inventor
Arturo De Risi
Francesco Micali
Matthias Stark
Markus Weber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wartsila NSD Schweiz AG
Original Assignee
Wartsila NSD Schweiz AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wartsila NSD Schweiz AG filed Critical Wartsila NSD Schweiz AG
Priority to EP09173759A priority Critical patent/EP2199549A1/fr
Publication of EP2199549A1 publication Critical patent/EP2199549A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/18—Other cylinders
    • F02F1/20—Other cylinders characterised by constructional features providing for lubrication
    • 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
    • F01M1/06—Lubricating systems characterised by the provision therein of crankshafts or connecting rods with lubricant passageways, e.g. bores
    • 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
    • F01M1/10—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters
    • 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
    • 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

Definitions

  • the invention relates to a cylinder lubricating device, and a reciprocating internal combustion engine, in particular slow-running large diesel engine with a cylinder lubricating device according to the preamble of the independent claim of the respective category.
  • the piston lubrication is performed by lubricating means in the reciprocating piston or in the cylinder wall, is applied by the lubricating oil on the tread of the cylinder wall, the friction between the piston and the tread and thus the wear of the tread and to minimize the piston rings.
  • treadwear wear less than 0.05 mm for 1000 hours of operation.
  • the lubricant delivery rate is about 1.3 g / kWh and less in such engines and should not least be further reduced for cost reasons as possible, while the wear is to be minimized.
  • lubrication devices are known in which the lubricating oil is applied to the piston passing through the lubricant opening by a plurality of lubricant openings accommodated in the circumferential direction in the cylinder wall, wherein the lubricant is distributed by the piston rings both in the circumferential direction and in the axial direction.
  • the lubricant in this method is not applied over a large area on the running surface of the cylinder wall, but more or less selectively between the piston rings on the side surfaces of the piston.
  • One problem is, for example, the always occurring massive pollution of the receiver room with lubricating oil.
  • the reason for this is that when the piston on its movement toward bottom dead center passes through the scavenging passages opening into the receiver space, the lubricating oil becomes from the piston ring grooves or from the piston ring package in which a certain amount of lubricating oil is always stored is, blown by the ruling in the piston ring package Kochduck in the form of a lubricating oil cloud in the receiver room.
  • the lubricating oil blown into the receiver chamber is of course also at least partially conveyed into the combustion chamber in the suction cycle with the fresh air supplied to the combustion chamber, where it is burned and thus finally lost for any further use.
  • the object of the invention is therefore to propose an improved lubricating device for lubricating a running surface of a cylinder of a reciprocating internal combustion engine, by which the problems described above are avoided and in particular the contamination of the receiver with lubricating oil is significantly reduced and preferably still saves lubricating oil and lubrication in the Area of the scavenging slots is improved.
  • the invention thus relates to a cylinder lubricating device for lubricating a running surface of a cylinder wall of a cylinder of a reciprocating internal combustion engine, in particular a slow-running two-stroke large diesel engine.
  • the cylinder is a piston along the tread between a bottom dead center and a top dead center in an axial direction and arranged to move back and forth.
  • scavenging slots are provided at an inlet region of the cylinder, so that fresh air can be supplied to a combustion chamber of the cylinder in the operating state through the scavenging slots.
  • a drain opening is provided in the cylinder wall in a region between the scavenging slots and the top dead center, so that lubricating oil can be discharged from the cylinder.
  • the oil collected in the oil collection chamber is returned directly from the oil collection chamber through inlet openings on the cylinder surface in the scavenging slots, so that for the first time the tread in the scavenging slots can be optimally and additionally supplied with lubricating oil.
  • the contamination of the receiver with lubricating oil is prevented by the invention, it is the lubrication of the tread of the cylinder in the scavenging slots improved and at the same time saves lubricating oil, because the previously lost to the receiver lubricating oil can be used for lubrication.
  • a return means for returning lubricating oil is thus provided in a subsystem of the cylinder lubricating device.
  • the subsystem can be, for example, the cylinder or the cylinder running surface of the cylinder, or a cleaning and / or recycling device in which the discharged from the cylinder via drain opening lubricating oil is recycled and the lubricating oil circuit is supplied again.
  • the subsystem is a disposal container into which the lubricating oil discharged via the discharge opening is discarded because, for example, it can no longer be recirculated into the lubricating oil circuit.
  • an oil collecting space communicating with the discharge opening is provided, so that lubricating oil can be supplied from the cylinder to the oil collecting space and can be temporarily stored there.
  • the aforementioned return means is particularly preferably an inlet opening provided in the cylinder wall and communicating with the oil collecting space, so that the lubricating oil can be returned from the oil collecting space into the cylinder for lubricating the running surface of the cylinder.
  • the oil collection chamber can be an integral part of the cylinder wall of the cylinder, so that outside the cylinder liner no additional and space-consuming oil collection chamber must be provided, in particular, the oil collection chamber can of course be provided alternatively or additionally outside the cylinder.
  • the oil collecting space is designed as an annular space completely or partially surrounding the cylinder.
  • At least two oil collecting chambers may be provided, which may be offset from each other, for example in the circumferential direction and / or in relation to the axial direction, so that on the one hand effective lubricating oil from the piston ring package of the piston in the oil collecting ring can be collected and on the other hand, the collected lubricating oil again better and larger area can be recirculated by means of the inlet openings on the tread.
  • the oil collecting space can also be divided by intermediate walls into a plurality of mutually separated oil space segments, so that are discharged through these individually and possibly in different ways lubricating oil through the drain holes in the individual oil chamber segment can and depending on the position of a specific oil compartment segment specific areas of the cylinder surface can be individually and selectively supplied with lubricating oil from the corresponding oil room segment.
  • a pressure valve and / or a check valve can be provided on the oil collecting space, preferably on each oil space segment, so that the amount of lubricating oil which can be returned to the subsystem by the return means, in particular the amount of lubricating oil which can be returned to the cylinder surface, can be set to a predefinable value range, and or so that the can be varied by the return means in the subsystem traceable amount of lubricating oil with respect to the circumferential direction and / or with respect to the axial direction.
  • the drain opening and / or the return means, in particular the inlet opening is designed such that a lubricating oil flow rate is adjustable and thus especially an optimal and both time-dependent and location-dependent adjustable lubrication of the tread is possible.
  • the invention relates to a reciprocating internal combustion engine, in particular two-stroke large diesel engine with an inventive cylinder lubricating device as described in this document.
  • the inventive cylinder arrangement of Fig. 1 is a typical arrangement as it is known per se for longitudinally purged two-stroke large diesel engines from the prior art, apart from the inventive drain opening.
  • the cylinder arrangement with the inventive cylinder lubricating device 1 for lubricating a running surface 2 of a cylinder wall 3 comprises a cylinder 4, which is also referred to as a cylinder liner 4, in which a piston 5 between the bottom dead center UT and the top dead center OT along the running surface 2 of the cylinder 4th is arranged in the axial direction A back and forth movable.
  • the piston 5 comprises a piston ring packing 50, which is shown here schematically with only two piston rings 51, 52, namely with the combustion chamber 8 closest to the first piston ring 51, which is also referred to as top ring 51, and the second piston ring 52, the Example as oil collection ring 52 according to EP 1 936 245 A1 can be designed.
  • the combustion chamber 8 is shown at the top by a cylinder cover 800 with injector 801 and exhaust valve 802, the in Fig. 1 just opened, limited.
  • the piston is in a conventional manner via the piston rod 53 with a in Fig. 1 not shown crosshead, from which the reciprocating movement of the piston in the operating state of the large diesel engine is transmitted to the crankshaft, also not shown, of the machine.
  • the piston rod 53 is guided through the receiver space 15, which adjoins the cylinder liner 4 at the bottom, and the stuffing box 151, which seals the receiver space 15 against the crankshaft space 16 underneath, so that no fresh air 71, symbolized by the arrow 71, emerges an unillustrated turbocharger under a high pressure, for example, under a pressure of four bar in the Receiver room 15 feeds, can get from the receiver room 15 in the crankshaft space 13.
  • a drain opening 9 is provided in the cylinder wall 3 in a region between the scavenging slots 7 and the top dead center OT, so that lubricating oil 10 can be discharged from the cylinder 4.
  • the drain opening 9 is provided according to the representation above the receiver space 15 in the vicinity of the scavenging slots.
  • Fig. 2 shows a simple specific embodiment of the present invention, in which an annular oil collecting space 13 is provided above the scavenging slots 7 of the cylinder 4.
  • the Fig. 3 and Fig. 4 show further training of the example according to Fig. 2 ,
  • the cylinder lubricating device 1 for lubricating a running surface 2 of a cylinder wall 3 of a cylinder 4 of a reciprocating internal combustion engine in the present example a slow-running two-stroke large diesel engine, comprises a cylinder 4 in which cylinder 4 a piston 5 along the tread 2 between a bottom dead center UT and an upper one Dead center OT is arranged in an axial direction A back and forth.
  • the piston 5 is just above the scavenging slots 7, which at an inlet portion 6 of the cylinder 4 within a in Fig.
  • receiver space 15 are provided so that the combustion chamber 8 of the cylinder 4 in the operating state through the scavenging ports 7 fresh air 71 is fed from a likewise not shown for reasons of clarity turbocharger.
  • a drain opening 9 is provided in the cylinder wall 3 in a region between the scavenging ports 7 and the top dead center OT so that lubricating oil 10 can be discharged from the cylinder 4.
  • the check valve 17 prevents 9, the lubricating oil 10 and the lubricating oil cloud escapes through the opening 9 back into the cylinder.
  • the check valve 17 thus blocks the fluid flow from the oil collection chamber 13 back into the cylinder.
  • the cloud of lubricating oil 10 then settles in the oil collection chamber 13 in the form of liquid lubricating oil 10 and forms at the bottom of the oil collection chamber 13 under the action of gravity a sump or a lake of lubricating oil 10.
  • the so collected in the oil collection chamber 13 lubricating oil 10 is then again for the lubrication of the tread 2 of the cylinder wall 3 is available and is fed back for this purpose by the inlet opening 111 of the tread 2, which forms a subsystem 12 of the cylinder lubricating device 1.
  • a check valve 18 is likewise provided, which prevents lubricating oil, part of the lubricating oil cloud or, for example, pressurized gas from passing from the combustion space 8 or from the receiver space 15 through the inlet opening 111 into the oil collecting space 13 through the inlet opening 111 , The check valve 18 thus blocks the fluid flow from the cylinder 4 into the oil collecting space 13.
  • a pressure valve 14 with which a predeterminable hydrostatic pressure in the oil collection chamber 13 is adjustable at the oil collection chamber 13, is provided, so that by the return means 11, 111, that is, here through the inlet opening 111 in the subsystem 12, so here on the tread 2 traceable amount of lubricating oil 10 is adjustable to a predeterminable value range.
  • deflecting plates 131, 132 are provided as a precaution, which help to prevent this.
  • the drain openings 9 and / or the inlet openings 111 are provided in a completely or partially circumferential in the circumferential direction U drain groove 90 and / or in a Zulaufnut 1110 in the cylinder wall 3, wherein the drain groove 90 and / or the Zulaufnut 1110 at the same time as an oil reservoir can serve, in which lubricating oil 10 can be stored for lubrication of the tread 2.
  • the drain groove 90 and / or the feed groove 1110 need not necessarily be as in Fig. 2a shown schematically in the form of a zigzag line. The in Fig.
  • the plurality of drain openings 9 and / or the plurality of inlet openings 111 can be arranged at varying heights with respect to the axial direction A, so that more sheering oil 10 can be collected from the piston ring package 50, or for example longer can be applied to the passing piston 5 through the inlet openings 111, because the piston 5 on its movement along the tread 2 in the example of Fig. 2a Longer in the sphere of influence of the drain openings 9 and / or the inlet openings 111 dwells than when all drain openings 9 and / or all inlet openings 111 are provided at the same height with respect to the axial direction A.
  • the drainage groove 90 and the inlet groove 1110 can be formed by one and the same groove in the cylinder wall 3 or else a separate groove for the drainage groove 90 and the inlet groove 1110 can also be provided in the cylinder wall 3 of the cylinder 4.
  • the oil collection chamber 13 may be formed in another embodiment also as an integral part of the cylinder wall 3 of the cylinder 4.
  • Such an example is schematically based on Fig. 2a shown.
  • a plurality of drain openings 9 and a plurality of inlet openings 111 in the specific embodiment of the Fig. 2 arranged one above the other in the tread 2 with respect to the axial direction A.
  • a particular advantage of the variant according to Fig. 2b of course, is that no additional space for the oil collection chamber 13 is claimed, since the oil collection chamber 13 is an integral part of the cylinder wall 3.
  • the lubricating oil 10 collected through the discharge opening 9 may be supplied in whole or in part to a lubricating oil processing device 12, which thus likewise forms a subsystem 12 of the inventive cylinder lubricating device 1.
  • the lubricating oil treatment device 12 may be, for example, a cleaning device 12, with which the collected lubricating oil 10 is cleaned again and the lubricating oil circuit is then made available again.
  • the collected through the drain opening 9 lubricating oil 10 is no longer recyclable, for example because it is too strong is dirty or because no return means 11, 111 is provided, so that the collected through the drain opening 9 lubricating oil 10 is disposed of properly in the case.
  • a mudguard 133 provided in the form of a siphon 133 in the oil collection chamber 13 that dirt deposits 100 are retained and so particular can not get into the check valve 18 and can not get on the tread 2, so that clogging of the check valve 18 can be prevented and the harmful dirt is kept away from the tread 2.
  • a drain valve 134 is provided with drain cock, so that the dirt 100 from time to time or even continuously and automatically removed from the oil collection chamber 13.
  • the inventive cylinder lubricating device 1 in any case has the advantage that the stored in KolberingUn 50 lubricating oil 10 is not blown into the receiver room and this thereby polluted.
  • Fig. 5a to 5d is a decompression movement of the piston 5 from a position in which the piston ring packing 50 according to Fig. 5a is still above the drain opening 9, up to a position of the piston 5 according to Fig. 5d represented where the piston 5 is below the scavenging slots 7 in the vicinity of the bottom dead center UT.
  • Fig. 5c the piston ring package has now moved further to a position below the inlet opening 111, wherein the cloud of lubricating oil 10 was previously almost completely spent in the oil collection chamber 13.
  • Fig. 5c is now under the prevailing in the oil collection chamber 13 hydrostatic pressure or simply under the influence of gravity, the previously collected lubricating oil 10 spent by the inlet opening 111 again on the tread 2, thereby improving the lubrication on the tread 2 in the scavenging slots 7 becomes.
  • the pressure in the oil collection chamber 13 builds up only slowly, so that slowly and continuously over a sufficiently long period lubricating oil is fed back through the inlet opening 111 on the tread 2, so that the piston even in the something later on compression stroke can still profit from the oil collected in the oil collection room.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
EP09173759A 2008-12-18 2009-10-22 Dispositif de lubrification de cylindre pour moteur à combustion interne Withdrawn EP2199549A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09173759A EP2199549A1 (fr) 2008-12-18 2009-10-22 Dispositif de lubrification de cylindre pour moteur à combustion interne

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP08172203 2008-12-18
EP09173759A EP2199549A1 (fr) 2008-12-18 2009-10-22 Dispositif de lubrification de cylindre pour moteur à combustion interne

Publications (1)

Publication Number Publication Date
EP2199549A1 true EP2199549A1 (fr) 2010-06-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP09173759A Withdrawn EP2199549A1 (fr) 2008-12-18 2009-10-22 Dispositif de lubrification de cylindre pour moteur à combustion interne

Country Status (4)

Country Link
EP (1) EP2199549A1 (fr)
JP (1) JP2010144718A (fr)
KR (1) KR20100071015A (fr)
CN (1) CN101749073A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2620607A1 (fr) 2012-01-30 2013-07-31 Wärtsilä Schweiz AG Ensemble piston-cylindre et procédé d'alimentation en lubrifiant l'ensemble piston-cylindre pour un moteur à combustion interne
EP2639438A1 (fr) 2012-03-13 2013-09-18 Wärtsilä Schweiz AG Piston et dispositif de distribution de lubrifiant pour moteur à combustion à piston alternatif
CN107762655A (zh) * 2016-08-17 2018-03-06 曼狄赛尔公司德国曼柴油机欧洲股份公司的联营公司 大型二冲程压缩点火内燃机的气缸润滑设备
US11125223B2 (en) 2014-09-29 2021-09-21 Volvo Truck Corporation Reciprocating machine with cylinder having collector groove

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* Cited by examiner, † Cited by third party
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US9133739B2 (en) * 2012-05-30 2015-09-15 GM Global Technology Operations LLC Method for in-situ forming of low friction coatings on engine cylinder bores
CN103470332B (zh) * 2013-09-30 2015-08-19 泉州市洛江双阳高捷机动车零部件电脑设计工作室 簧片阀控制汽缸的润滑装置
CN103485859B (zh) * 2013-09-30 2015-08-12 泉州市洛江双阳高捷机动车零部件电脑设计工作室 用于负压控制汽缸润滑装置的推杆
CN103628945A (zh) * 2013-11-04 2014-03-12 北京理工大学 一种自由活塞式内燃发电机用压差式润滑装置
DE102015013786A1 (de) * 2015-10-20 2017-04-20 Andreas Stihl Ag & Co. Kg Zweitaktmotor
CN113565643B (zh) * 2021-06-30 2022-11-01 东风汽车集团股份有限公司 一种改善燃油稀释率的发动机结构、汽车及方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3035789A1 (de) * 1980-09-17 1982-03-25 Gebrüder Sulzer AG, 8401 Winterthur Kolbenbrennkraftmaschine mit einer zylinderschmiervorrichtung
JPS61279716A (ja) * 1985-06-05 1986-12-10 Mitsubishi Heavy Ind Ltd 内燃機関のシリンダ潤滑装置
JPS63138108A (ja) * 1986-11-30 1988-06-10 Mitsubishi Heavy Ind Ltd ２サイクル機関の潤滑システム
EP0291867A2 (fr) * 1987-05-22 1988-11-23 Krupp MaK Maschinenbau GmbH Machine à pistons
JPH05280320A (ja) * 1992-03-31 1993-10-26 Mazda Motor Corp ユニフロー式２サイクルエンジン
EP1936245A1 (fr) 2006-12-18 2008-06-25 Wärtsilä Schweiz AG Piston doté d'un anneau collecteur d'huile

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3035789A1 (de) * 1980-09-17 1982-03-25 Gebrüder Sulzer AG, 8401 Winterthur Kolbenbrennkraftmaschine mit einer zylinderschmiervorrichtung
JPS61279716A (ja) * 1985-06-05 1986-12-10 Mitsubishi Heavy Ind Ltd 内燃機関のシリンダ潤滑装置
JPS63138108A (ja) * 1986-11-30 1988-06-10 Mitsubishi Heavy Ind Ltd ２サイクル機関の潤滑システム
EP0291867A2 (fr) * 1987-05-22 1988-11-23 Krupp MaK Maschinenbau GmbH Machine à pistons
JPH05280320A (ja) * 1992-03-31 1993-10-26 Mazda Motor Corp ユニフロー式２サイクルエンジン
EP1936245A1 (fr) 2006-12-18 2008-06-25 Wärtsilä Schweiz AG Piston doté d'un anneau collecteur d'huile

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2620607A1 (fr) 2012-01-30 2013-07-31 Wärtsilä Schweiz AG Ensemble piston-cylindre et procédé d'alimentation en lubrifiant l'ensemble piston-cylindre pour un moteur à combustion interne
EP2639438A1 (fr) 2012-03-13 2013-09-18 Wärtsilä Schweiz AG Piston et dispositif de distribution de lubrifiant pour moteur à combustion à piston alternatif
US11125223B2 (en) 2014-09-29 2021-09-21 Volvo Truck Corporation Reciprocating machine with cylinder having collector groove
CN107762655A (zh) * 2016-08-17 2018-03-06 曼狄赛尔公司德国曼柴油机欧洲股份公司的联营公司 大型二冲程压缩点火内燃机的气缸润滑设备
CN107762655B (zh) * 2016-08-17 2019-07-23 曼能解决方案（曼能解决方案德国股份公司）分公司 大型二冲程压缩点火内燃机的气缸润滑设备

Also Published As

Publication number Publication date
CN101749073A (zh) 2010-06-23
KR20100071015A (ko) 2010-06-28
JP2010144718A (ja) 2010-07-01

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