CN1116510C - Reciprocating piston engine - Google Patents

Reciprocating piston engine Download PDF

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Publication number
CN1116510C
CN1116510C CN99815460A CN99815460A CN1116510C CN 1116510 C CN1116510 C CN 1116510C CN 99815460 A CN99815460 A CN 99815460A CN 99815460 A CN99815460 A CN 99815460A CN 1116510 C CN1116510 C CN 1116510C
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CN
China
Prior art keywords
groove
filler
reciprocating machine
described reciprocating
cylinder liner
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.)
Expired - Lifetime
Application number
CN99815460A
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Chinese (zh)
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CN1333859A (en
Inventor
莱赫·莫丘尔斯基
杰斯珀·韦斯·福格
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
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MAN B&W Diesel AS
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Publication date
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Publication of CN1333859A publication Critical patent/CN1333859A/en
Application granted granted Critical
Publication of CN1116510C publication Critical patent/CN1116510C/en
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    • 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
    • F16JPISTONS; CYLINDERS; SEALINGS
    • F16J10/00Engine or like cylinders; Features of hollow, e.g. cylindrical, bodies in general
    • F16J10/02Cylinders designed to receive moving pistons or plungers
    • F16J10/04Running faces; Liners
    • 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
    • F02F7/00Casings, e.g. crankcases or frames
    • F02F2007/0097Casings, e.g. crankcases or frames for large diesel engines

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Coating By Spraying Or Casting (AREA)

Abstract

The invention relates to a reciprocating piston engine comprising at least one cylinder whose cylinder liner (2) is provided with at least one groove (9) which forms an oil pocket (8) and which is situated in the area of the running surface (4) of said liner, whereby the running surface (4) faces the piston (6) assigned to the cylinder. The aim of the invention is to create a particularly protective operating mode and thus attain a particularly long service life of the cylinder liner (2). To this end, the groove (9) has a depth which corresponds to the maximum depth of the wear of the cylinder liner (2). A filling (10) is allocated to said groove. The material used for the filling (10) in the groove (9) has a lower capacity of resistance to wear than the basic material of the cylinder liner (2).

Description

Reciprocating machine
The present invention relates to a kind of reciprocating machine, large two-stroke diesel engine particularly, it has at least one cylinder, its cylinder liner is provided with at least one groove at it in the zone of the slip surface of piston, it has disposed a filler, wherein has less wear resistance in order to form the material that the grease chamber forms the filler of groove than the body material of cylinder liner.
The equipment of this pattern in CH-A 4 93 738 instead scheme proposals with body material selective nitriding or quenching.Wherein adopt bronze, white metal or hard chrome as the material suggestion of the filler that forms groove.Described material is difficult to form the grease chamber in the filler zone of groove.Therefore it forms the grease chamber of smaller volume.The groove depth of suggestion can reach in the scope of depth of penetration when only being in quenching or nitriding.More given prominence to above-mentioned shortcoming thus.Add, because smaller groove depth, more promptly wearing and tearing in the zone that is suitable for forming the grease chamber, has further worsened lubricating status thus.In addition, in described known device, also the material granule that peels off from cylinder liner owing to heat erosion etc. may be pressed in the packing material hardly and stop its unrestricted motion whereby.Therefore exist this material granule between cylinder liner and piston, to be pulverized or rub with the hands broken danger, thereby this may cause damaging with strong local pyrexia and acceleration heat erosion and/or kill.Therefore prove that the operation of this known device is reliable inadequately.
GB-A-14 73 058 illustrates a kind of internal-combustion piston engine, and wherein cylinder liner is provided with the groove that is used to form the grease chamber.But do not comprise filler in these grooves.Thereby the degree of depth of groove and being used for forms the cross section of grease chamber and reduces along with the cumulative wearing and tearing of cylinder liner.Therefore cumulative its lubricating status along with service time runs down.Also can not fix described equipment from the particle that cylinder liner peels off, this may cause the above shortcoming that has illustrated.Therefore prove that also the operation of this equipment is reliable inadequately.
Therefore set out thus, the objective of the invention is, improve the equipment that starts described type, make it reach long-term height operational reliability in simple and cost-effective mode.
This purpose reaches like this according to the present invention, form groove filler material at least in part by aluminum bronze and/or at least in part by aluminium and/or constitute by graphite at least in part and the degree of depth of groove greater than the greatest wear thickness of cylinder liner.
Avoided starting the shortcoming of described known device by such measure.Thereby the material of setting for the filler of groove is in an advantageous manner through the grease chamber that forms the cross section with requirement after over a long time and lubricated reliably through forming in each relevant zone of cylinder liner after over a long time, can play corrosion and heat resistant thus reliably and kills.The grease chamber that forms or the degree of depth of heavy wool chamber are relevant with the intensity of wearing and tearing.Big more each grease chamber of wearing and tearing is dark more and thereby it is strong more to lubricate, and vice versa.Therefore in fact form a kind of self-adjusting pattern.Therefore also might reduce SFC.But another the very special advantage according to measure of the present invention is, because of cylinder liner inevitably the material granule that peeled off of wearing and tearing can be pressed in the softer packing material and fix on the spot.Therefore stoped the unrestricted motion of this material granule by the groove that is provided with filler.Therefore the groove that is provided with filler according to the present invention also plays a part highly effectively to stop groove.Therefore can also prevent the damage that material granule caused and the fault of peeling off effectively by measure of the present invention by cylinder liner, for example material welding or material bonding, it causes quickening heat erosion and kills.Therefore guaranteed long working life in an advantageous manner by measure of the present invention.
Further develop by of the present invention, form the material of the filler of groove and can be suitably have stronger thermal expansion than the body material of cylinder liner.Can make whereby that filler expands quickly than body material under overheated situation, therefore can make piston stable and prevent so-called killing thus.When also having dry lubricating performance in an advantageous manner, more given prominence to packing material this advantage.
In the favourable development of above-mentioned measure, the filler of groove can preferably adopt contain 9~11%Al, 0.5~2%Fe, all the other are the aluminum bronze of Cu.This material has the superior performance of above-mentioned requirements.Yet also might adopt the graphite alloy of the aluminum bronze that for example preferably contains 15~25% graphite and 75~85%.This material also has the performance of the high level of requirement.
Can be advantageously provided at least one spiral groove.Thereby obtain oily especially good distribution interior and good especially conveying thus and also obtain extra high reliability along the big zone of cylinder liner.
According to another favourable development of above-mentioned measure, filler can constitute weld layer or sprayfused coating according to the applicability of the material that is adopted.This has guaranteed the reliable bonding of imporous filler on body material with plain mode.
In accompanying drawing described below:
Fig. 1 illustrates the part section of a cylinder of large two-stroke diesel engine;
Fig. 2 illustrates the enlarged view according to the zone of groove of the present invention of being provided with of cylinder liner slip surface;
Fig. 3 illustrates a scheme about trench cross-section, and
Fig. 4 illustrates the another program about trench cross-section.
The present invention is applied to preferably in the reciprocating machine, particularly internal-combustion piston engine with the large two-stroke diesel engine of operation slowly.The structure of this equipment and mode of operation are known in itself, therefore no longer need in this article to illustrate in greater detail.
The cylinder of large two-stroke diesel engine shown in Fig. 1 comprises that one is provided with the cylinder liner 2 of a plurality of suction ports 1, and installation one comprises the cylinder head 3 of a venting gas appliance that wherein is not shown specifically on it.The inner face of cylinder liner 2 constitutes slip surface 4, and itself and a periphery are provided with reciprocating piston 6 concurrent operations of piston ring 5.Slip surface 4 is supplied with lubricant oil via lubricant oil supplying tube 7.
In order to make the zone by experience lubricant oil undersupply, for example the upper area of slip surface 4 obtains good lubricant oil distribution and particularly good lubricant oil is supplied with, and this zone is provided with each grease chamber 8 suitable, that only hint out in Fig. 1.
For this reason,, the groove 9 of at least one incision is set in the zone of slip surface 4, wherein constitutes the grease chamber 8 of a configuration as being clear that by Fig. 2.Groove 9 comprises a filler 10, and it is made of the wear resistance materials with smaller of wear resistance than the body material of cylinder liner.Cylinder liner is made of cast steel usually.Can advantageously adopt aluminum bronze to form filler 10.As experiment prove that this aluminum bronze should comprise at least 2~20%, preferred 9~11%Al, 0.5~8%, preferred 0.5~2%Fe and all the other are Cu.The condition that specific composition exists at each situation.Wherein Fe content is high more, and the hardness of material is high more.In the cylinder liner of large two-stroke diesel engine, adopt the aluminum bronze that comprises following composition to obtain good result:
2~20%, preferred 9~11%Al,
0.5~8%, preferred 0.5~2%Fe,
0.1~8%Mn,0.1~2%Si,0.1~1%Ni,
0.1~2%C has at least a composition among Sb, Co, Be, Cr, Sn, Cd, Zn and the Pb of the highest 5~20% content respectively, all the other are Cu.
But also may adopt graphite alloy such as nickel graphite or 3 SiC 2/graphite or aluminium graphite or aluminum bronze graphite, it comprises 5~60% respectively, preferred 15~25% graphite and comprise 40~95% of other compositions respectively, preferred 75~85% content.Adopt the aluminum bronze graphite alloy can obtain the good especially anticorrosive and performance of killing.Wherein the composition of aluminum bronze can be according to above-mentioned composition.
Filler 10 can advantageously be added in the groove of before having made 9 by the sprayfused coating of laser spraying method or arc spraying such as plasma spraying method coating.Certainly the filler 10 of groove 9 also can be made weld layer.The aluminum bronze that contains 9~11%Al, 1~3%Fe, 4~6%Ni, 1~2%Mn and all the other Cu is specially adapted to this purpose.
The filler of this groove 9 is suitably reached the level of slip surface 4.Slip surface 4 can be through processing all sidedly, for example honing then.Because it is more less than the wear resistance of the body material of cylinder liner 2 to form the material of filler 10, the wearing and tearing of filler 10 are bigger in the running-in period wearing and tearing than cylinder liner 2.The lubricated oil of material under the mill washes away.Therefore form the grease chamber 8 that requires, it remained between the whole spreadable life of cylinder liner.
Therefore the degree of depth with the groove shown in the d 9 among Fig. 2 is equivalent to the wearing and tearing thickness of cylinder liner 2 and preferably big slightly at least.Yet because dark like this groove 9 is provided with filler 10, its wearing and tearing along with cylinder liner are are also worn and torn, just its wearing and tearing are fast slightly, and in being formed between whole spreadable life of cylinder liner 2 quite big degree uniformly, be different from the cross-sectional profile of the grease chamber 8 of groove 9 cross sections own.
Can advantageously adopt such material in order to form filler 10, it has the performance of expansion stronger than the body material of cylinder liner when being heated.More than Jian Yi material has such performance.Therefore filler 10 expansion stronger than the body material of cylinder liner 2 under the situation of local superheating can make piston 6 stable, the expansion line 11 that dots as shown in Figure 2 thus.More than the material of Jian Yi filler 10 also has good dry lubricating performance, and this particularly obtains favourable supporting under overheated situation.But also may be in packing material in conjunction with or insert the material that has good dry lubricating performance in addition.
One or more grooves 9 can be set.They are met the place that the destination is arranged on the dangerous of lack of lubrication and thereby danger such as heat erosion are arranged according to experience so far.This is particularly in the situation of the upper area of slip surface 4.In Fig. 1, in the zone of the slip surface 4 that limits in the top dead center position of piston 6 by first and second piston rings 5, a groove with annular of corresponding grease chamber 8 is set.Another groove that disposes grease chamber 8 is arranged in the zone of below of nethermost piston ring 5.Also show the grease chamber 8 of other darker configuration in the example shown.
Can constitute the radial groove of annular as the groove 9 on the basis of grease chamber 8.But, one or more grooves 9 that dispose the spiral extension of grease chamber 8 also can be set in addition or instead.They can extend along zone of slip surface 4 or along its total length.
Fig. 2 is the groove 9 based on a spiral extension.The helical pitch that this groove 9 usefulness P represent can be 1.5%~20% of the diameter D of slip surface 4.Helical pitch P can be a constant along the groove total length.But also might be that the helical pitch that changes is so that obtain bigger grease chamber's density at predispose to damage especially zone ratio in little predispose to damage zone.The depth d of above-mentioned groove 9 suitably is in 0.1%~0.4% the scope of diameter D.Exit width W suitably is 1%~2% of diameter D.
Groove 9 has the inside gradually narrowed cross-section from exit width W in the example shown.This is to consider that rate of depreciation increased along with cumulative service time.Groove 9 has roughly U-shaped cross-section among Fig. 2, and it has the side with respect to the bottom land inclination.The tilt angle that the side is represented with α can be in 30 °~60 ° the scope.Transition between bottom land and the groove side suitably forms fillet, as by shown in the radius arrow.
Above-mentioned sized data also is applicable to other the scheme according to Fig. 3 and 4.Fig. 3 illustrates a vee-cut 9, and it has the filler that comprises grease chamber 8 10 of configuration.Groove 9 among Fig. 4 has a circular arc cross section.Thereby the inside width that reduces gradually of the grease chamber 8 that also forms inside narrowed cross-section gradually and formation filler 10 here and wherein form.

Claims (22)

1. reciprocating machine, it has at least one cylinder, its cylinder liner (2) is provided with at least one groove (9) in the zone of its slip surface towards piston (6) (4), it has disposed a filler (10), wherein, in order to form grease chamber (8), the material of formation filler (10) has less wear resistance than the body material of cylinder liner (2), it is characterized in that
The material that forms the filler (10) of groove (9) constitute by aluminum bronze at least in part and the degree of depth of groove (9) greater than the greatest wear thickness of cylinder liner (2).
2. reciprocating machine, it has at least one cylinder, its cylinder liner (2) is provided with at least one groove (9) in the zone of its slip surface towards piston (6) (4), it has disposed a filler (10), wherein, in order to form grease chamber (8), the material of formation filler (10) has less wear resistance than the body material of cylinder liner (2), it is characterized in that, the material that forms the filler (10) of groove (9) constitute by aluminium at least in part and the degree of depth of groove (9) greater than the greatest wear thickness of cylinder liner (2).
3. reciprocating machine, it has at least one cylinder, its cylinder liner (2) is provided with at least one groove (9) in the zone of its slip surface towards piston (6) (4), it has disposed a filler (10), wherein, in order to form grease chamber (8), the material of formation filler (10) has less wear resistance than the body material of cylinder liner (2), it is characterized in that, the material that forms the filler (10) of groove (9) constitute by graphite at least in part and the degree of depth of groove (9) greater than the greatest wear thickness of cylinder liner (2).
4. one of require a described reciprocating machine according to aforesaid right, the material that it is characterized in that forming the filler (10) of groove (9) has stronger thermal expansion than the body material of cylinder liner (2).
5. according to one of claim 1 to 3 described reciprocating machine, the material that it is characterized in that forming the filler (10) of groove (9) has dry lubricating performance.
6. according to the described reciprocating machine of claim 1, it is characterized in that comprising aluminium, iron and copper at least for the aluminum bronze that the filler (10) that forms groove (9) is adopted.
7. according to the described reciprocating machine of claim 6, it is characterized in that the aluminum bronze that is adopted for the filler (10) that forms groove (9) comprises following alloying constituent at least:
2~20%Al,
0.5~8%Fe,
All the other are Cu.
8. according to the described reciprocating machine of claim 6, it is characterized in that the aluminum bronze that is adopted for the filler (10) that forms groove (9) comprises following alloy part:
2~20%Al,
0.5~8%Fe,
0.1~8%Mn, 0.1~2%Si, 0.1~1%Ni, 0.1~2%C has at least a composition among Sb, Co, Be, Cr, Sn, Cd, Zn and the Pb of the highest 5~20% content respectively, and all the other are Cu.
9. according to one of claim 1 to 3 described reciprocating machine, it is characterized in that the material that forms the filler (10) of groove (9) comprises 5~60% graphite and 40~95% aluminium and/or aluminum bronze and/or nickel and/or silicon.
10. according to one of claim 1 to 3 described reciprocating machine, it is characterized in that being provided with at least one spiral groove (9).
11. according to one of claim 1 to 3 described reciprocating machine, it is characterized in that, at least one groove (9) be set in the upper area of cylinder liner (2) at least.
12. according to one of claim 1 to 3 described reciprocating machine, it is characterized in that, in the zone of the slip surface (4) that limits in the top dead center position of piston (6) by first and second piston rings (5) at least one groove (9) be set at least.
13. according to one of claim 1 to 3 described reciprocating machine, it is characterized in that, in the zone of the top dead center position of piston (6) at least one groove (9) be set in the below of nethermost piston ring (5) at least.
14., it is characterized in that at least one groove (9) extends continuously along the guiding length of slip surface (4) according to one of claim 1 to 3 described reciprocating machine.
15. according to one of claim 1 to 3 described reciprocating machine, the helical pitch that it is characterized in that spiral groove (9) be slip surface (4) diameter 1.5%~20%.
16. according to one of claim 1 to 3 described reciprocating machine, the degree of depth that it is characterized in that groove (9) be slip surface (4) diameter 0.1%~0.4%.
17. according to one of claim 1 to 3 described reciprocating machine, the exit width that it is characterized in that groove (9) be slip surface (4) diameter 1%~2%.
18., it is characterized in that groove (9) inwardly has narrowed cross-section gradually according to one of claim 1 to 3 described reciprocating machine.
19., it is characterized in that the filler (10) of groove (9) constitutes weld layer or sprayfused coating according to one of claim 1 to 3 described reciprocating machine.
20. according to one of claim 1 to 3 described reciprocating machine, it is characterized in that: it is a large two-stroke diesel engine.
21. according to claim 7 or 8 described reciprocating machines, it is characterized in that: above-mentioned aluminum bronze contains 9-11%Al, 0.5-2%Fe.
22. according to the described reciprocating machine of claim 9, it is characterized in that: the material that forms the filler (10) of groove (9) comprises the graphite of 15-25% and the aluminium of 75-85%.
CN99815460A 1999-01-08 1999-12-22 Reciprocating piston engine Expired - Lifetime CN1116510C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19900386A DE19900386C1 (en) 1999-01-08 1999-01-08 Reciprocating machine
DE19900386.6 1999-01-08

Publications (2)

Publication Number Publication Date
CN1333859A CN1333859A (en) 2002-01-30
CN1116510C true CN1116510C (en) 2003-07-30

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JP (1) JP3636664B2 (en)
KR (1) KR100411867B1 (en)
CN (1) CN1116510C (en)
AU (1) AU2100800A (en)
DE (1) DE19900386C1 (en)
GB (1) GB2361982B (en)
NO (1) NO20013177L (en)
PL (1) PL349134A1 (en)
WO (1) WO2000040850A1 (en)

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GB2410313B (en) * 2004-01-22 2007-08-08 Ford Global Tech Llc An engine and a method of making same
EP1918389A4 (en) * 2005-07-28 2010-06-23 San Etsu Metals Co Ltd Copper alloy extruded material and method for producing same
JP5113190B2 (en) * 2007-01-09 2013-01-09 フェデラル−モーグル ブルシャイト ゲゼルシャフト ミット ベシュレンクテル ハフツング Piston ring with multilayer coating and process for producing the same
EP2182094A1 (en) * 2008-10-31 2010-05-05 Wärtsilä Schweiz AG Cylinder for a large diesel motor
JP5514593B2 (en) * 2009-03-31 2014-06-04 日本ピストンリング株式会社 Cylinder
US9341267B2 (en) 2010-11-03 2016-05-17 Doosan Infracore Co., Ltd. Cylinder formed with uneven pattern on surface of inner wall
DE102011106564A1 (en) 2011-07-05 2013-01-10 Mahle International Gmbh Method for producing a cylinder surface and cylinder liner
CN102537065B (en) * 2012-02-23 2013-11-27 杭州钱王机械有限公司 Bearing for copper-based heavy-load self-lubricating ship and preparation method thereof
CN102606332A (en) * 2012-03-30 2012-07-25 常熟市赵市水磨粉厂 High-temperature wear-resistant cylinder structure
US9534559B2 (en) * 2012-06-20 2017-01-03 General Electric Company Variable thickness coatings for cylinder liners
CN103421979A (en) * 2013-08-27 2013-12-04 苏州长盛机电有限公司 Chromium copper alloy
DE102015006498A1 (en) * 2015-05-22 2016-11-24 Mahle International Gmbh Cylinder bore for a cylinder housing of an internal combustion engine and arrangement of such a cylinder bore and a piston
DE102016007727A1 (en) * 2016-06-23 2017-12-28 Man Truck & Bus Ag Internal combustion engine, in particular reciprocating internal combustion engine

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DE4238525C1 (en) * 1992-11-14 1993-11-18 Man B & W Diesel Ag Cylinder liner with a wear resistant layer

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Publication number Publication date
NO20013177L (en) 2001-08-10
AU2100800A (en) 2000-07-24
GB2361982A (en) 2001-11-07
JP2002534635A (en) 2002-10-15
DE19900386C1 (en) 2000-11-16
GB2361982B (en) 2002-07-10
PL349134A1 (en) 2002-07-01
CN1333859A (en) 2002-01-30
JP3636664B2 (en) 2005-04-06
KR100411867B1 (en) 2003-12-18
KR20010089772A (en) 2001-10-08
NO20013177D0 (en) 2001-06-22
GB0115516D0 (en) 2001-08-15
WO2000040850A1 (en) 2000-07-13

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