CN1458399A - Crosshead type engine - Google Patents

Crosshead type engine Download PDF

Info

Publication number
CN1458399A
CN1458399A CN03131493A CN03131493A CN1458399A CN 1458399 A CN1458399 A CN 1458399A CN 03131493 A CN03131493 A CN 03131493A CN 03131493 A CN03131493 A CN 03131493A CN 1458399 A CN1458399 A CN 1458399A
Authority
CN
China
Prior art keywords
crosshead
oil
slide rail
engine
oil nozzle
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.)
Granted
Application number
CN03131493A
Other languages
Chinese (zh)
Other versions
CN100467841C (en
Inventor
安德斯·沃伦德
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.)
MAN Energy Solutions Filial af MAN Energy Solutions SE
Original Assignee
MAN B&W Diesel AS
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 MAN B&W Diesel AS filed Critical MAN B&W Diesel AS
Publication of CN1458399A publication Critical patent/CN1458399A/en
Application granted granted Critical
Publication of CN100467841C publication Critical patent/CN100467841C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02FCYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00Cylinders; Cylinder heads 
    • F02F1/18Other cylinders
    • F02F1/20Other cylinders characterised by constructional features providing for lubrication
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C5/00Crossheads; Constructions of connecting-rod heads or piston-rod connections rigid with crossheads
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00Pressure lubrication
    • F01M1/08Lubricating systems characterised by the provision therein of lubricant jetting means

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

In the crosshead type engine in which a piston 3 installed in the attached cylinder is connected to a crosshead 5 via a piston rod 4, the crosshead cooperates with a crankshaft 7 via a connecting rod 6, a guide shoe 11 is provided on the crosshead, a guide rail 12 extending parallel to a moving direction of the piston 3 is disposed on the guide shoe, and a lubricating oil is fed to a gap between sliding surfaces 13 and 14 with the guide shoe 11 and the guide rail 12 by a lubricator, the sliding surfaces 13 and 14 of the guide shoe 11 and the guide rail 12 are uninterrupted, the lubricator has a spray nozzle 17 capable of spraying the lubricating oil, and a jet 18 toward the sliding surface 14 of the guide rail 12 is formed by the spray nozzle.

Description

Crosshead engine
Technical field
The present invention relates to a kind of crosshead engine, especially two-stroke large diesel crosshead engine, comprise that at least one is contained in the piston in the cylinder of attaching troops to a unit, piston is connected with a crosshead by piston rod, crosshead is by connecting rod and bent axle collaborative work and be provided with side slide block, be parallel to the slide rail that the piston motion direction is extended for slide block sets, and comprise a lubricating fitting, be used for the gap confession lubricant oil between the slip surface that slide block and slide rail face with each other.
Background technique
In the known structure of the above-mentioned type, slide block and/or slide rail are shaped on the oil groove that is located in their slip surface zones, and oil groove infeeds lubricant oil by the hole.This lubrication system that is combined in the slip surface causes at the lower pressure in lubricant film inside that is formed by the lubricant oil in the gap between the slip surface that faces one another, so be used to bear the enough big bigger area of supporting force needs of mutual impacting force in order to obtain one.The problem in this respect that is to say is, from the inside rising in its edge, and distance each other then pressure far away more in edge is high more in the lubricant film pressure inside.Yet the oil groove that adopts in known structure causes the interruption of slide block and the mutual supporting surface of slide rail that sets, and these supporting surfaces are divided into a plurality of little branch faces, along these minutes face pressure takes place respectively rises.Therefore do not form pressure along oil groove, only reach lower stress level along the little branch face of mutual supporting surface so set out thus.Therefore be used to bear slide block and the mutual enough supporting forces of impacting force of slide rail that set for slide block in order to obtain one, mutual total supporting surface is long-pending must be bigger.Because aspect width, there is possibility hardly, cause the bigger height of slide block so have to, and thereby cause the bigger structure height of motor generally, this especially is undesirable in marine engine, because they must be installed in the narrow and small machinery compartment.In addition, also cause bigger slip resistance thus.That is to say that slip resistance improves with the increase that is in contact with one another area under the predetermined pressure of oil film.This just causes worsening the total efficiency of motor.On the other hand, cause reducing oil film pressure in the minimizing of the slide block and the face that between the slide rail of slide block, is in contact with one another of attaching troops to a unit, and thereby the wearing and tearing that cause improving slip resistance and flatness equally.
Summary of the invention
Therefore, set out thus, the objective of the invention is, take simple and economical measure to improve the crosshead engine that type mentioned in preface, make it the mode of being of compact construction and still reach lower slip resistance.
Take following measures to reach by this purpose of the present invention: the slip surface of slide block and slide rail is designed to surface continuously; And, but lubricating fitting has the oil nozzle of supplying lubricating oil, can cause the beam of the slip surface of aiming at slide rail by them.
Take these measures to overcome the above-mentioned shortcoming of known structure fully.Because slip surface is not interrupted by oil groove, so at slide block and attach troops to a unit the bigger and continual face that is in contact with one another is provided between the slide rail of slide block, the oil film that can form in the gap between the above-mentioned surface in this case is inner to be set up than higher pressure.Meanwhile, oil nozzle guarantees that the gap between the slide block and the slide rail of attaching troops to a unit supplies lubricant oil reliably.Because crosshead only abuts on the guide rail that matches with it with the slide block of a side respectively during at downward storke with at up stroke, so always on opposite side, cause off-load, this just help from oil nozzle be injected in that lubricant oil on the slip surface of slide rail enters the slide block there reliably and the gap between the slide rail of this slide block of attaching troops to a unit in.Whole in an advantageous manner for this reason downward storke or up stroke always have the long time that use can be provided, thereby guarantee more reliably to the lubrication gap supplying lubricating oil.This also causes favourable effect for causing cooling off by lubricant oil simultaneously.Because based on reaching the higher pressure of lubricant film along the continual face that is in contact with one another by measure of the present invention, so the size of supporting surface can be smaller mutually, this just might realize the crosshead that a kind of structure height is smaller in an advantageous manner, and thereby reduces the structure height of whole motor.Owing to be in contact with one another the smaller size of face, also cause lower slip resistance in an advantageous manner.Therefore, cause a kind of work more easily and the protectorate operation generally by measure of the present invention, and thereby improved total efficiency and improved Economy.
Design and appropriate further developing that above-mentioned measure is favourable have been described in the dependent claims.For example, sustainable rightly supplying lubricating oil of oil nozzle and the continual beam of generation.This not only causes slip surface supplying lubricating oil reliably, meanwhile also guarantees especially effectively and reliably to cool off slip surface.
By a favourable design of above-mentioned measure, at least a portion oil nozzle can be fixedly mounted on the some parts of engine bearer.This just might realize a kind of simple design of the fuel supply line that sets for oil nozzle in an advantageous manner.
Rightly, at least a portion oil nozzle can be installed on the partition of one of engine bearer slide rail that is in relative position along motor horizontal expansion and cross-over connection each other.Can design a plurality of here by favourable mode along slide rail height profile and can be by the oil nozzle of a public oil pipe supplying lubricating oil.
Further develop by another of above-mentioned measure, at least a portion oil nozzle can be installed on the crosshead.This causes near a kind of oil nozzle layout the gap, and these oil nozzles are with the crosshead to-and-fro motion.Therefore there is fewer oil nozzle just much of that, and however still lubricant oil can be fed on whole height of slide rail.
Explanation other favourable designs of above-mentioned measure and appropriate further developing in all the other dependent claims, and can be by finding out in detail in following embodiment's explanation by means of accompanying drawing.
Description of drawings
Following accompanying drawing is represented:
The schematic representation of a kind of two-stroke large diesel crosshead engine of Fig. 1;
The hard-wired example of Fig. 2 oil nozzle;
The movable oil nozzle of Fig. 3 for example; And
The pressue-graph of the inner oil pressure that forms of the lubricant film of Fig. 4 between two slip surfaces.
Embodiment
The main application of the present invention is the two-stroke large diesel crosshead engine.Such motor is widely used as shiphoard machinery system.The basic structure of this type of motor and working method are well-known.
Two-stroke large diesel crosshead engine shown in Figure 1 comprises the cylinder 1 of a plurality of front and back series connection, and cylinder respectively has a cylinder liner 2 that is provided with suction port, adorns a piston of attaching troops to a unit 3 in the cylinder liner.Piston is connected with crosshead 5 by a coaxial piston rod 4, and crosshead moves up and down equally with piston 3 and is connected with bent axle 7 by connecting rod 6.Bent axle 7 is in the bottom 8 of engine bearer.Installation one comprises the intermediate structure 9 of crosshead 5 on bottom 8, and cylinder 1 is placed on this intermediate structure.Piston rod 4 passes the wall that intermediate structure 9 upwards refers to, for this reason, wall is provided with a current lining 10.
Crosshead 5 has two pairs along the horizontal slide block 11 respect to one another of motor, and they abut on the slide rail that sets respectively 12 and by slide rail and guide.Slide block 11 and slide rail 12 are shaped on the slip surface 13,14 that faces one another.It is the chamber that crosshead 5 sets that is respectively on boundary that the intermediate structure 9 of engine bearer is provided with below cylinder 1 with cross wall 15 or parallel with it end wall.Slide rail 12 is installed on adjacent separately cross wall 15 or the end wall and by side direction intensifier 16 and is bearing on the wall, as Fig. 2 and 3 clearly represents.
The slip surface 13 of slide block 11 and the slip surface 14 of slide rail 12 are designed to the smooth surface of not segmentation, and in order to obtain good operation characteristic supplying lubricating oil.Establish a lubricating fitting, it comprises that some can produce the beam 18 of the slip surface 14 of aiming at slide rail 12 for the oil nozzle 17 of lubricant oil by oil nozzle for this reason.In Fig. 1, in the upper end region of slide rail 12, establish some to the oil nozzle 17 of slide rail for lubricant oil.They are installed on the wall that the intermediate structure 9 of engine bearer upwards refers to.
Additionally or with it differently can be each slide rail 12 and set a plurality of oil nozzles 17 along its height profile.This as seen from Figure 2 design.Here the oil nozzle 17 of Cai Yonging is contained on the cross wall 15 that the slide rail 12 of attaching troops to a unit is installed.Press the hard-wired oil nozzle of mode shown in Fig. 1 and 2, can by one from figure further expression be fuel supply line 19 supplying lubricating oils that an adjacent set lubricant pipe of crankshaft main bearing is told, as shown in Figure 2.Wherein, tell the branch 20 of each oil nozzle 17 of guiding from fuel supply line 19 for all oil nozzles 17 that are installed on the cross wall 15 set a public fuel supply line 19.
Because oil nozzle 17 is along the height profile of slide rail 12, thus can be in an advantageous manner from top and from down towards the slip surface supplying lubricating oil of slide block 11, it is vital doing for a kind of crosshead of implementing long stroke like this.
Additionally or replace hard-wired oil nozzle 17, also can establish the oil nozzle 17 that is installed on the crosshead 5 and can moves up and down along the slide rail 12 of respectively attaching troops to a unit with crosshead as shown in Figure 3.Here, each slide block 11 can be established oil nozzle 17 at least one top and at least one bottom.Therefore, here equally in an advantageous manner can be from top and from down towards the slip surface supplying lubricating oil of slide block 11.
The oil nozzle 17 that is installed on the crosshead 5 equally can be by a public fuel supply line supplying lubricating oil of further not representing in the drawings.It can be told from a lubricant pipe that bearing device set that is crosshead 5 is installed the crosshead pin that is connected with piston rod 4.
But oil nozzle 17 intermittent types or supply lubricant oil continuously.Under oil nozzle 17 lubricated oil conditions without interruption, cause continual beam 18.Here, the lubricant oil that is sprayed on constantly on the slip surface 14 of slide rail 12 and flows down along slide rail 12 also causes dispelling the heat reliably lubricated reliably except providing.
Crosshead 5 only abuts in left or right slide block 11 respectively when downward storke and when up stroke attaches troops to a unit on their slide rail 12.Cause the bigger gap of opening between the slip surface 14 of the slip surface 13 of slide block 11 and slide rail 12 in the zone of opposite side always, lubricant oil can enter in this gap during crosshead 5 whole downward storkes or up stroke.Therefore provide time enough to above-mentioned gap supplying lubricating oil reliably.The lubricant oil that exists in the gap between slip surface 13,14 forms the lubricant film of a load during when stand under load, makes the impacting force of slip surface 13,14 antagonisms on them that faces one another keep certain spacing by this oil film.
The bearing capacity of this lubricant film, that is the supporting force that produces by lubricant film, and thereby also have the thickness of lubricant film, depend on the lubricating oil pressure of lubricant film inside and the size of supporting surface mutually, here be the size that depends on slide block 11 slip surfaces 13.High more in the lubricant film pressure inside, then mutual bearing area can be more little, and vice versa, with the thickness that guarantees the lubricant film expectation and thereby guarantee the performance characteristic of expectation.
In the lubricant film pressure inside from the inside rising in the edge that is in contact with one another face.The related zone of the face that is in contact with one another is big more, that is the edge is each other from must be far away more, and then pressure rises highly more.
Fig. 4 represents three pressure diagrams at different situations.The face that is in contact with one another between slide block 11 and affiliated slide rail 12 is corresponding to the slip surface 13 of slide block 11.The size of slide block 11 slip surfaces 13 is a Level Change with slide block 11 when supposition is wide.Therefore horizontal ordinate is represented the height of slide block 11 in Fig. 4.Ordinate is represented pressure p.
By the present invention design, that is do not establish in the slip surface 13,14 of not segmentation of oil groove, obtain with a dot and dash line represent along slide block 11 pressure diagram 21 of h highly.Obtainable here supporting force is relevant with the area that with pressure diagram 21 is the boundary.If be arranged among Fig. 4 with the oil groove of 24 modes that schematically illustrate, then obtain pressure diagram by curve 22.As can be seen, along the height segmentation that is made of oil groove 24, pressure does not obviously reach the discharge head of wall scroll pressure diagram 21 here from the inside rising in the end of height segmentation.For have in this case with supporting force identical under the situation of single curve 21 and thereby cause the identical pressure of oil film, just need a bigger height H based on the lower stress level that in curve 22, exists.In the height H that belongs to curve 22 and belong to difference d between the height h of curve 21, in fact be equivalent to adopt economization by the accessible structure height of measure of the present invention.Another curve 23 is corresponding to the pressure diagram in the bigger height H in the situation lower edge of adopting the slip surface of pressing not segmentation of the present invention.Obtainable in this case supporting force significantly surpasses along the pressure diagram accessible supporting force of same height H by pressing curve 22, and this just might be with the slide block height value of reducing to h.

Claims (10)

1. crosshead engine, especially two-stroke large diesel crosshead engine, comprise that at least one is contained in the piston (3) in the cylinder (1) of attaching troops to a unit, piston is connected with a crosshead (5) by piston rod (4), crosshead is provided with side slide block (11) by connecting rod (6) and bent axle (7) collaborative work and crosshead, for setting, slide block is parallel to the slide rail (12) that piston (3) moving direction is extended, and comprise a lubricating fitting, be used for the slip surface (13 that faces with each other to slide block (11) and slide rail (12), 14) gap between is characterized by for lubricant oil: the slip surface (13 of slide block (11) and slide rail (12), 14) be designed to surface continuously; And, but lubricating fitting has the oil nozzle (17) of supplying lubricating oil, can cause the beam (18) of the slip surface (14) of aiming at slide rail (12) by them.
2. according to the described crosshead engine of claim 1, it is characterized by: the sustainable supplying lubricating oil of oil nozzle (17) and produce continual beam (18).
3. according to the described crosshead engine of one of all claims in prostatitis, it is characterized by: at least a portion oil nozzle (17) is fixedly mounted on the some parts of engine bearer.
4. according to the described crosshead engine of claim 3, it is characterized by: at least a portion oil nozzle (17) is installed on the wall (15) of one of engine bearer slide rail (12) that is in relative position along motor horizontal expansion and cross-over connection each other.
5. according to the described crosshead engine of one of all claims in prostatitis, it is characterized by: for each slide rail (12) sets a plurality of oil nozzles along the slide rail height profile (17).
6. according to the described crosshead engine of one of all claims in prostatitis, it is characterized by: attaching troops to a unit respectively for all sets a public fuel supply line (19) in the fixedly oil nozzle (17) of two slide rails respect to one another (12), and it is that an adjacent set lubricant pipe of crankshaft main bearing is told from one.
7. according to the described crosshead engine of one of all claims in prostatitis, it is characterized by: at least a portion oil spout spray (17) is contained on the crosshead (5).
8. according to the described crosshead engine of claim 7, it is characterized by: each slide rail of crosshead (5) (12) has at least one to be located at one transverse to the oil nozzle (17) in the areal extent of moving direction extension.
9. according to claim 7 or 8 described crosshead engines, it is characterized by: adopt some to be located at crosshead (5) upside and the interior oil nozzle (17) of underside area.
10. according to the described crosshead engine of one of claim 7 to 9, it is characterized by: the oil nozzle (17) that is contained on the crosshead (5) can be by a public fuel supply line supplying lubricating oil, and this fuel supply line is told from a lubricant pipe that bearing device set that crosshead pin is installed for crosshead (5).
CNB031314937A 2002-05-18 2003-05-16 Crosshead type engine Expired - Fee Related CN100467841C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10222312.2 2002-05-18
DE10222312A DE10222312B4 (en) 2002-05-18 2002-05-18 Crosshead engine

Publications (2)

Publication Number Publication Date
CN1458399A true CN1458399A (en) 2003-11-26
CN100467841C CN100467841C (en) 2009-03-11

Family

ID=29413967

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB031314937A Expired - Fee Related CN100467841C (en) 2002-05-18 2003-05-16 Crosshead type engine

Country Status (4)

Country Link
JP (1) JP4240372B2 (en)
KR (1) KR100921989B1 (en)
CN (1) CN100467841C (en)
DE (1) DE10222312B4 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016011851A1 (en) * 2014-07-24 2016-01-28 江苏科技大学 Crosshead component of large diesel engine
WO2016095260A1 (en) * 2014-12-18 2016-06-23 江景通 Multi-cylinder internal combustion engine set adopting a crosshead assembly rod
CN105863821A (en) * 2015-02-06 2016-08-17 温特图尔汽柴油公司 Internal combustion engine, method for operating the internal combustion engine, and cylinder, cylinder liner and closing plate for the internal combustion engine
CN113187620A (en) * 2020-01-10 2021-07-30 日本发动机股份有限公司 Framework
RU2786613C1 (en) * 2022-05-05 2022-12-22 Юрий Иванович Терентьев Two-stroke two-cylinder opposite internal combustion engine

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005078118A1 (en) 2004-02-06 2005-08-25 Bayer Healthcare Llc Oxidizable species as an internal reference for biosensors and method of use
DE102005003552B4 (en) * 2005-01-26 2007-05-03 Man B & W Diesel A/S Crosshead engine
MX2008000836A (en) 2005-07-20 2008-03-26 Bayer Healthcare Llc Gated amperometry.
EP1934591B1 (en) 2005-09-30 2019-01-02 Ascensia Diabetes Care Holdings AG Gated voltammetry
JP2007134963A (en) * 2005-11-10 2007-05-31 Funai Electric Co Ltd Reproduction system and server
KR101361590B1 (en) 2006-07-18 2014-02-11 베르트질레 슈바이츠 악티엔게젤샤프트 A hub holder for a shaft of a reciprocating piston engine
EP3753481B1 (en) 2006-10-24 2024-07-17 Ascensia Diabetes Care Holdings AG Transient decay amperometry device
WO2009076302A1 (en) 2007-12-10 2009-06-18 Bayer Healthcare Llc Control markers for auto-detection of control solution and methods of use
WO2017014702A1 (en) * 2015-07-21 2017-01-26 Mehmet Aydin Structure of articulated rod for vehicle engines

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE262160C (en) *
GB139978A (en) * 1919-06-18 1920-03-18 Thomas Richard Castle Improvements in the lubrication of internal combustion engines
US1584897A (en) * 1925-09-21 1926-05-18 Skinner Automotive Device Comp Internal-combustion-engine-cylinder lubrication
CH476204A (en) * 1967-06-08 1969-07-31 Sulzer Ag Arrangement for the lubrication of a plunger of a reciprocating internal combustion engine
JPH0392523A (en) * 1989-09-05 1991-04-17 Kubota Corp Lubricating device for engine
KR100214643B1 (en) * 1996-12-30 1999-08-02 구자홍 Cross head lubricating apparatus
DE19712090C1 (en) 1997-03-22 1998-04-02 Man B & W Diesel Gmbh Reciprocating piston engine, especially large diesel engine
KR200235364Y1 (en) 1997-12-23 2001-09-25 이계안 Oil jet assembly
JPH11336560A (en) 1998-05-28 1999-12-07 Mitsubishi Heavy Ind Ltd Cross head of diesel engine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016011851A1 (en) * 2014-07-24 2016-01-28 江苏科技大学 Crosshead component of large diesel engine
US9885380B2 (en) 2014-07-24 2018-02-06 Jiangsu University Of Science And Technology Crosshead component of large diesel engine
WO2016095260A1 (en) * 2014-12-18 2016-06-23 江景通 Multi-cylinder internal combustion engine set adopting a crosshead assembly rod
CN105863821A (en) * 2015-02-06 2016-08-17 温特图尔汽柴油公司 Internal combustion engine, method for operating the internal combustion engine, and cylinder, cylinder liner and closing plate for the internal combustion engine
CN113187620A (en) * 2020-01-10 2021-07-30 日本发动机股份有限公司 Framework
CN113187620B (en) * 2020-01-10 2023-01-31 日本发动机股份有限公司 Framework
RU2786613C1 (en) * 2022-05-05 2022-12-22 Юрий Иванович Терентьев Two-stroke two-cylinder opposite internal combustion engine

Also Published As

Publication number Publication date
JP2004003478A (en) 2004-01-08
CN100467841C (en) 2009-03-11
DE10222312A1 (en) 2003-12-04
JP4240372B2 (en) 2009-03-18
KR20030090506A (en) 2003-11-28
KR100921989B1 (en) 2009-10-14
DE10222312B4 (en) 2005-02-03

Similar Documents

Publication Publication Date Title
CN100467841C (en) Crosshead type engine
CN102171435A (en) Piston skirt with friction reducing oil recess and oil reservoir
US9341267B2 (en) Cylinder formed with uneven pattern on surface of inner wall
CN1247883C (en) Crosshead engine
JP2012122616A (en) Crosshead sliding shoe
KR100442384B1 (en) Oil supplying apparatus for opposed reciprocating compressor
CN100462541C (en) Cylinder cap structure
EP1751440B1 (en) Crosshead bearing for a large two-stroke diesel engine
CN1462331A (en) Lubricant oil pump unit
CN201412317Y (en) Plunger pump self oil supply lubrication gearbox
JP2007532845A5 (en)
JP6552932B2 (en) Fuel pump
EP3861200A1 (en) Modification of a valve seat for improving a lubricator pump unit and lubrication system of a large slow-running two-stroke engine, and an improved lubricator pump unit
CN105464869B (en) Fuel pump
CN111997776A (en) High-efficient lubricated piston link assembly
CN220227119U (en) Split type cylinder piston rod direction lubricating structure
JP2013181447A (en) Lubricating device for piston
JP5832389B2 (en) Lubricating oil circulation mechanism
CN2613607Y (en) Piston of engine
CN2804501Y (en) Piston rod and connecting.rod assembly for engine
CN116557268B (en) Reciprocating compressor cylinder piston rod cooling seal guide assembly
CN219910973U (en) Mixed cooling petrol engine piston with cooling oil drainage effect in inner cavity
CN201198772Y (en) Connecting board apparatus of engine
CN202789163U (en) Cylinder body structure of car engine
CN221003515U (en) Lubrication-free linear module

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: MAN DIESEL ENGINES AND TURBINE GERMAN SUBSIDIARY,

Free format text: FORMER NAME: MAN DIESEL AS

Owner name: MAN DIESEL AS

Free format text: FORMER NAME: MAN DIESEL AS

Owner name: MAN DIESEL AS

Free format text: FORMER NAME: MAN B + W DIESEL AS.

CP01 Change in the name or title of a patent holder

Address after: Copenhagen

Patentee after: MAN DIESEL & TURBO FILIAL AF MAN DIESEL & TURBO SE TYSKLAND

Address before: Copenhagen

Patentee before: MAN DIESEL & TURBO FILIAL AF MAN DIESEL & TURBO SE TYSKLAND

Address after: Copenhagen

Patentee after: MAN DIESEL & TURBO FILIAL AF MAN DIESEL & TURBO SE TYSKLAND

Address before: Copenhagen

Patentee before: MAN DIESEL filial af MAN Diesel SE Tyskland

Address after: Copenhagen

Patentee after: MAN DIESEL filial af MAN Diesel SE Tyskland

Address before: Copenhagen

Patentee before: MAN B & W DIESEL A/S

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090311

Termination date: 20170516