CN103423013B - Cylinder lubrication device - Google Patents
Cylinder lubrication device Download PDFInfo
- Publication number
- CN103423013B CN103423013B CN201310173320.2A CN201310173320A CN103423013B CN 103423013 B CN103423013 B CN 103423013B CN 201310173320 A CN201310173320 A CN 201310173320A CN 103423013 B CN103423013 B CN 103423013B
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- cylinder
- dosage
- plunger
- lubrication device
- piston
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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
- F01M1/16—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
- F01M1/12—Closed-circuit lubricating systems not provided for in groups F01M1/02 - F01M1/10
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
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- 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
- F01M1/08—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
Abstract
A kind of cylinder lubrication device of the large-sized two-stroke diesel engine for having crosshead.Electromotor has multiple cylinder, and each cylinder has cylinder liner；The piston moved back and forth in each cylinder, each piston includes at least two piston ring；For the cylinder lubrication device of lubrication of cylinders, and electronic control system.Cylinder lubrication device has multiple piston pump.Each piston pump has the dosage plunger being slidably moved in dosage cylinder.Each dosage cylinder is in fluid communication with jet exit.Cylinder lubrication device also has plunger connector, and it is connected to dosage plunger and is configured such that dosage plunger moves simultaneously.Plunger connector can move in position range between extreme position determined by two structures.Dosage plunger is driven by the linear actuators being connected to plunger connector, and linear actuators is configured in response to control signal, the terminal position of any desired in the range of making the plunger any starting position in position range move into place.
Description
Technical field
The present invention relates to the two-stroke diesel that a kind of large-sized low-speed for having crosshead runs
The cylinder lubrication device of electromotor, and relate to a kind of cross having and cylinder lubrication device being set
The two-stroke diesel engine that the large-sized low-speed of head runs.
Background technology
In there is the field of large-sized two-stroke diesel engine of crosshead, such as, it is used for generating electricity
In factory or as the motive power at marine ship, the cylinder of electromotor and piston, need especially
Accurately and widely lubricate.Typically, this electromotor uses heavy oil operation, draws in this cylinder
Entering the substantial amounts of granule harmful for electromotor, such as sulfur, it is converted into sulphuric acid and corrodes vapour
The surface of cylinder liner cylinder and piston and piston ring.Accordingly, it would be desirable to apply specific cylinder oil,
This lubricating oil has relatively low pH value and the acidity for compensation combustion product, this burning
The acidity of product is by the fuel being typically used as in large-sized low-speed operation two-stroke diesel engine
The sulphur-containing substance of heavy oil caused.
For utilizing nominal to guide the electromotor of feed rate operation, especially for large bore engine
(600-1200 centimetre of cylinder diameter), steam-cylinder lubrication oil consumption represents bigger expenditure, the most often
The small reduction of secondary lubricating oil injection dosage, also represent the profit during big-block engine normally uses
The notable saving that lubricating oil consumes.Therefore, it is an object of the invention to be controlled very precisely vapour
Cylinder lubricating oil dosage, to allow to apply the cylinder oil of minimum essential requirement amount, keeps full simultaneously
Piston/lining the wear rate of meaning and the time between holding or prolongation engine maintenance.Fall
Environment is also played positive effect because emission reduces by low lubrication oil consumption.
Just correct time in cycle of engine, is namely positioned to injection when piston
The when of between piston ring, it is necessary to cylinder oil is ejected in cylinder, thus effect
Most preferably.For the most traditional lubricator, this is the most feasible.
Typical lubricator is to rotate based on for the every 4th, the 5th or the 6 etc. of electromotor
The principle lubricating oil of specified vol being ejected in cylinder by a large amount of spray site, and right
It is impossible for rotating execution injection in each single of electromotor or second.
Minimum number of revolutions between injection determines typically by minimum time, this minimum
Time is that conventional lubrication device is ready after once injection performs another cylinder oil
The time of injection.In pneumatic system, this time is by refilling jet chamber before ejecting
The control limit of speed limit and injection dosage and speed is determined.
Summary of the invention
In this context, it is an object of the present invention to provide a kind of lubricator and there is this lubrication
The electromotor of device, this lubricator overcomes or at least reduces problem of the prior art.This
Another bright purpose is to provide a kind of alternative lubricator and a kind of has this lubricator
Alternative electromotor.
This purpose is by providing the two-stroke diesel multicylinder engine run for large-sized low-speed
Cylinder lubrication device realize, electromotor has reciprocating-piston, piston in each cylinder
Having piston ring, piston ring slides on the inner surface of cylinder liner, thus relative to piston
Back and forth, cylinder lubrication device provides via the inner surface that multiple spray site are cylinder liner and accurately joins
The steam-cylinder lubrication fluid of amount, these spray site are around cylinder circle distribution.Cylinder lubrication device bag
Including multiple piston pump, each piston pump has the dosage post being slidably moved in dosage cylinder
Plug, each dosage cylinder is in fluid communication with jet exit, and each jet exit may be connected to
The spray site of one of them cylinder；And be connected to dosage plunger and be configured such that dosage plunger
Synchronization-moving plunger connector, plunger connector can position model between two extreme positions
Enclosing interior movement, thus dosage plunger is driven by the linear actuators being connected to plunger connector,
And linear actuators is configured in response to control signal, and makes plunger appointing in position range
Meaning starting position move into place in the range of the terminal position of any desired.
By arranging the actuating of the position that can directly stop at any desired for cylinder lubrication device
Device, it is possible to adjust or change from an injection stroke long to the injection stroke of next injection stroke
Degree.Then this makes it possible to the dosage of cylinder oil is adjusted to practically necessary amount, and
Therefore it can be avoided that emitted dose exceedes and is actually needed, thus has saved steam cylinder oil.
In one embodiment, control signal determines the injection when what position of plunger connector
Stroke terminates.
In one embodiment, extreme position is mechanical end stop.
In one embodiment, linear actuators is directly stopped in response to control signal.
In one embodiment, signal come from be associated with cylinder lubrication device or with start
The electronic control unit that machine is associated.
In one embodiment, linear actuators can directly stop at by electronic control unit institute
A position in the range of defined location.
In one embodiment, cylinder lubrication device is configured to follow for each electromotor
Ring provides for the particular spray carried out controlled stroke by a lubricating fluid injection
Length.
In one embodiment, cylinder lubrication device is configured to based on engine running condition
Control the length of stroke of dosage plunger, be based preferably on the electromotor for each injection event and transport
Row situation and adjust length of stroke.
In one embodiment, cylinder lubrication device is configured to based on engine running condition control
The stroke speed of dosage plunger processed, is based preferably on the electromotor for each injection event and runs
Situation and adjust stroke speed, and more preferably repeat to adjust stroke during injection event
Speed, in order to allow speed to form (rate shaping).
In one embodiment, cylinder lubrication device is configured to based on specific cylinder operation conditions
And control length of stroke and/or the speed of dosage plunger.
In one embodiment, cylinder lubrication device includes position sensor, and it is used for detecting
The position of dosage plunger or the position of plunger connector.
In one embodiment, linear actuators is linear motor.
Purpose above is also by the two-stroke bavin providing the large-sized low-speed with crosshead to run
Oil multicylinder engine and obtain, this electromotor includes the cylinder lubrication device according to the present invention.
Above-mentioned purpose is also provided by a kind of two punchings run for operation for large-sized low-speed
The method of the cylinder lubrication device of journey diesel oil multicylinder engine and realize, this electromotor each
Having reciprocating-piston in cylinder, reciprocating-piston has the piston slided on cylinder liner inner surface
Ring, thus cylinder lubrication device for piston each reciprocal or every multiple back and forth, via many
Individual spray site and be cylinder liner inner surface provide accurate dosage cylinder oil, the plurality of spray
Exit point is highly distributed around cylinder circumference etc..Cylinder lubrication device includes multiple piston pump, often
Individual piston pump has the dosage plunger being slidably moved in dosage cylinder, each dosage cylinder
It is in fluid communication with jet exit, and each jet exit may be connected to the spray of one of them cylinder
Exit point；And plunger connector, it is connected to dosage plunger and is configured such that dosage plunger is same
Shi Yidong, plunger connector can move in the position range between two extreme positions, and
Dosage plunger is driven by the linear actuators being connected to plunger connector, the method include so that
Linear actuators makes plunger starting position in position range move in response to control signal
The terminal position of any desired in the range of position, to realize the injection with selected length
Stroke.
In one embodiment, the method also includes determining institute for each single injection stroke
The length selected.
In one embodiment, the method also include actual operating state based on electromotor or
The actual operating state of the cylinder that person is correlated with and be that injection stroke determines selected length.
In one embodiment, the method also include actual operating state based on electromotor or
The actual operating state of the cylinder that person is correlated with and adjust the speed of dosage plunger.
In one embodiment, the method also includes according to suitable determined by transfer rate
Shape, and make cylinder lubrication device carry out injection event for specific cylinder.
Dosage cylinder 20.
Entering of cylinder lubrication device, large-sized two-stroke diesel engine and method according to the present invention
One step purpose, feature, advantage and performance will become obvious from detailed description of the invention.
Accompanying drawing explanation
In the detail hereinbelow part of this specification, the present invention with reference to the accompanying drawings shown in example
Property embodiment is explained in more detail, wherein:
Fig. 1 illustrate in perspective view the steam-cylinder lubrication dress according to an embodiment of the invention
Put；
Fig. 2 shows the details of the cylinder lubrication device shown in Fig. 1 with sectional view, and this lubrication fills
Put and there is the linear motor being in an extreme position；
Fig. 3 shows the details of the cylinder lubrication device shown in Fig. 1 with sectional view, and this lubrication fills
Put and there is the linear motor being in another extreme position；
Fig. 4 shows through the large-sized two-stroke diesel engine with crosshead with diagrammatic view
The section of cylinder；And
Fig. 5 shows the steam-cylinder lubrication dress with linear motor shown in Fig. 1 with sectional view
The details put.
Detailed description of the invention
Below by by exemplary embodiment describe according to the present invention be used for large-scale by two
The detailed description of the steam-cylinder lubricator device of stroke diesel engine.
The present invention relates to the two-stroke diesel that a kind of large-sized low-speed for having crosshead runs
The engine cylinder lubricating arrangement of electromotor 100 and system, it can form the promoting mainly into being of boats and ships
System or fixing electric power produce electromotor 100.Electromotor 100 has multiple cylinder 110, its typical case
Ground is three to ten four, and is set to straight line, but can have other layout type or
Person's number of cylinders.Each cylinder 110 is provided with the cylinder liner of the inner surface defining cylinder 110
111.In large-sized two-stroke electromotor 100, cylinder liner 111 internal diameter typically ranges between 250mm
Between 1200mm, and the reciprocating-piston 120 being slidably disposed in cylinder liner 111
Length of stroke typically in the range of 800 to 3000mm.It is then desired to the surface of lubrication
It is likely to be breached some square metres.Reciprocating-piston 120 is typically provided with 3-5 pressure and keeps piston
Ring 121, it slides on the inner surface of cylinder liner 111.Figure 4 illustrates and there are three
The piston of piston ring 121, but the piston ring of other quantity can be used.The cylinder profit of electromotor
Sliding device and the purpose of system, be to repeat to be supplied to cylinder by the cylinder oil of accurate dosage
110, thus on the inner surface of lining 111, keep lubricating film, reduce piston ring 121 and lining
Cylinder 111 inner surfacies between friction, and make cylinder wall, piston and piston ring away from corrode or
Acidic combustion products.Steam-cylinder lubrication fluid, such as, have alkalinity additive to neutralize cylinder 110
Combustor in the lubricating oil of sulphuric acid that formed during heavy oil combustion, by via through cylinder liner
The cylinder liner lubricating fluid points that formed of cylinder 111 or oiling pin 112 (quills) and apply.
Cylinder liner lubricating fluid spray site 112 (oiling pin) can be simple outlet (hole), or
Person they can be by nozzle or ejector or other modes well known in the prior art
Formed.Typically, multiple cylinder liner lubricating fluid spray site 112 are formed at cylinder liner 111
In, such as 4-12, or 4-20, cylinder liner lubricating fluid spray site 112 is with identical
Height is equally spaced around the circumference of lining 111, to guarantee the uniform applying of lubricating fluid.As
Really some region of cylinder 110 more or less tends to abrasion, then corresponding to the cylinder liner in this region
The concentration of cylinder lubricating fluid spray site 112 correspondingly may be increased or decreased.After spraying,
The lubricating fluid sprayed is distributed on lining 111 by piston ring.
The large-sized two-stroke diesel engine with crosshead is many institutes the most equally
Known, it is not necessary to further illustrate in current context.
Fig. 1 shows the illustrative embodiments of cylinder lubrication device 1.Cylinder lubrication device 1 is wrapped
Include housing 10 and be connected to the actuation means 40 of housing 10.
Fig. 2 and 3 illustrates the steam-cylinder lubrication of the Fig. 1 being in two extreme positions with broken section
The details of device 1.Cylinder lubrication device 1 has multiple piston pump.Each piston pump has formation
Dosage cylinder 20 in the housing 10.In the cross section view selected by Fig. 2 and 3, it can be seen that
Liang Ge dosage cylinder chamber 20.Dosage cylinder 20 preferably has elongated cylindrical, and they are excellent
Selection of land is arranged on imaginary circles (shown in the section of the elongated axis being perpendicular to dosage cylinder 20)
On.The circular configuration of these piston pumps can be from the location confirmation of the outlet 21 of dosage cylinder.
In Fig. 1, the embodiment shown in 2 and 3, there are six dosage cylinders 20, Qi Zhong
Fig. 1 can be picked out by six jet exits 21 at the front end being formed at housing 10.Excellent
In the embodiment of choosing, there are 10 dosage cylinders 20, but other quantity any can be used
Cylinder, such as 2-12, or the most.
Dosage plunger 30 is slidably received in each dosage cylinder 20.Pump chamber 24 is arranged on joins
In dosage cylinder 20 between amount piston 30 and the end of dosage cylinder 20, this dosage cylinder end
There is the port being connected to export 21.Dosage plunger 30 is configured to dosage cylinder 20 in injection
In a certain amount of steam-cylinder lubrication fluid be discharged in engine cylinder 110, and use a certain amount of
Lubricating fluid fill and be again filled with pump chamber 24.Thus, plunger 30 is configured to and dosage vapour
The inwall of cylinder 20 is formed and seals (at least at stopper head 30'), and can be in dosage cylinder 20
It is slidably moved into.
All dosage plunger 30 is connected to plunger connector 31 an end.Plunger connector
31 are slidably disposed in adapter inner chamber 32, and this adapter inner chamber is positioned at dosage cylinder 20
Extension, formed in the housing 10.Thus, the slip of plunger connector 31 will make whole post
Plug 30 slides at their respective dosage cylinder 20 internal synchronization.In fig. 2, dosage plunger 30
Being in its maximum (limit) punctured position with plunger connector 31, this maximum collapse position is by machine
Tool end stop 33 is determined.
The opposition side of plunger connector 31 is connected to be arranged to and pushing away that actuation means interacts
Pull bar 41, arranging this actuation means can be linear actuators 40.Thus, push-pull bar 41 is relative
Motion in housing 10 causes the plunger connector 31 motion in adapter inner chamber 32, and this is again
Result in dosage plunger 30 in respective dosage cylinder 20 while move.
Plunger connector 31 can be plate element, but can have other structure, such as from
The arm (not shown) that push-pull bar 41 extends.
Dosage cylinder 20 passes through from dosage cylinder 20 to the injection channel of jet exit 21 and injection
Exporting 21 configured in fluid communication, this jet exit is formed on the wall of housing 10.
In embodiment shown in figs 2 and 3, each in these injection channels has first
Conduit 11, which form outlet or the discharge orifice of autocorrelative dosage cylinder 20.First conduit
In 11 end walls that may be formed at dosage cylinder 20, as it can be seen, or its can be at relative pump chamber
The end of 24 is formed in dosage cylinder 20 sidewall.First conduit 11 by dosage cylinder 20 with each
From intermediate conductor 12 connect.
In shown illustrative embodiments, intermediate conductor 12 is relative to the longitudinal axis of jet chamber 20
Line and be laterally oriented in the housing 10.Intermediate conductor 12 (and first conduit 11) play by
Lubricating oil guides to dosage cylinder 20 and the dual mesh that is guided out by lubricating oil from dosage cylinder 20
, as described below.
Respective intermediate conductor 12 is connected by the second conduit 13 with respective injection catheter 14, this
Define and the connection of respective jet exit 21.
Check valve 22 is arranged in injection catheter 14, in the second conduit 13 or be arranged on them it
Between, in order to prevent the Material recirculation of the cylinder from electromotor.Therefore, check valve 22 is only permitted
Permitted the flowing towards jet exit 21.
Check valve 22 can be in the inner chamber 22' being formed between the second conduit 13 and injection catheter 14
Formed, or formed in the second conduit 13, or formed in injection catheter 14.
Therefore, in the embodiment shown in Fig. 3 and 2, each injection channel includes that first leads
Pipe 11, intermediate conductor the 12, second conduit 13 and injection catheter 14.
In fig. 2, housing 10 is illustrated to be formed as single entity or element, but if can pass through
Dry element assembly is formed.Above-mentioned inner chamber, passage and conduit 11,12,13,14,15,
16,17,18,19,20 can be formed in the housing such as interior molded channel or hole.But he
Also can be formed by suitable pipe, pipeline, cylinder etc..
Jet exit 21 is connected to be formed at cylinder liner by suitable pipeline (not shown)
Cylinder liner lubricating fluid point 112 (oiling pin) in 111.
Dosage cylinder 20 supplies steam-cylinder lubrication fluid via lubricating fluid feed path.At Fig. 2
With in the embodiment shown in 3, these feed paths for lubricating fluid originate in all
Dosage cylinder 20 is shared and is formed import 15 in the housing 10.Import 15 is opened on import and leads
In pipe 16.By the 3rd conduit 17, inlet ducts 16 is in fluid communication with inlet ducts ring 18.
Inlet ducts ring 18 in the plane transverse to the longitudinal axis of dosage cylinder 20 at housing
Formed in 10, and it is attached to the ring duct of whole pump chambers 24 of cylinder lubrication device 1.
, 2-4 import 15 can be there is in (not shown) in other embodiments, and correspondence
Lead to the inlet ducts 16 of inlet ducts ring 18.
Inlet ducts ring 18 is connected to each in above-mentioned intermediate conductor 12 by the 4th conduit 19,
These intermediate conductors again by the first conduit 11 be connected to respective dosage cylinder 20 and he
Respective pump chamber 24.
Check valve 23 is arranged in the feed path between the 4th conduit 19 and intermediate conductor 12, with
Just guarantee that during injection event steam-cylinder lubrication fluid is not back to import from intermediate conductor 12 and leads
Pipe ring 18, but during the intake stroke of dosage plunger, this check valve 23 makes steam-cylinder lubrication stream
Body sucks, and is used for filling up respective pump chamber 24.Check valve 23 is formed in the 4th conduit 19, or
Person is formed in the inner chamber 23' between the 4th conduit 19 and inlet ducts ring 18.
Therefore, each feed path in shown embodiment includes the first conduit 11, centre
Conduit the 12, the 4th conduit 19 and share inlet ducts ring 18, share the 3rd conduit 17, enter
Mouth conduit 16 and the import 15 shared.Here composite device is for whole feed paths
It is shared.
As it has been described above, intermediate conductor 12 and the first conduit 11 serve lubricating oil from dosage cylinder
20 are guided out or lubricating oil guide the double duty to this dosage cylinder, thus define each
Automatically supply passage and a part for respective both injection channels.This will retouch below further
State.
The import 15 of lubricating fluid feed path is connected to the pressurized source of lubricating fluid, such as, lubricate
Fuel tank.This preferably carries out supercharging by the of a relatively high positive displacement system of pressure, in order to for each
Dosage cylinder 20 provides equal lubricating fluid, and provides safe surplus, prevents from individually joining
Amount cylinder 20 and the blocking of connected feed path.
The check valve 22 being formed in injection channel and the check valve being formed in feed path
23 can be ball type.Alternatively, the pass valve closing of electronics or hydraulic control or ON/OFF
Valve can be used to replace these check valves.
Housing 10 is connected to actuation means.Actuation means has the actuating acted on push-pull bar 42
Device.This push-pull bar 42 or identical with above-mentioned push rod 41, or it is connected to above-mentioned push rod 41.
This actuation means is linear actuators 40.In embodiment shown in Fig. 1,2 and 3,
Linear actuators 40 preferably electronic linear motor 40' or linear hydraulic actuator 40 ".
Below, by the function of explanation cylinder lubrication device 1.
These dosage plungers 30 can be driven between two extreme positions by linear actuators 40
Move, and dosage plunger 30 can stop any position between the two extreme position.
Fig. 2 shows the position of maximum extension, i.e. dosage plunger 30 is positioned at their bottom position
Place, thus the stopper head 30' of plunger 30 is near the first conduit 11, namely the entering of dosage cylinder 20
Mouthful/outlet, now pump chamber 24 has minimum volume.This ultimate extension position is filled by steam-cylinder lubrication
Put the structure of 1 to be determined, and in an illustrative embodiments, by by dosage cylinder
Mechanical end stop 34 that the end wall of 20 is formed and produce.
Fig. 3 shows maximum collapse position, and namely dosage plunger 30 is positioned at their position, top
Put place, thus the stopper head 30' of plunger 30 is farthest away from the first conduit 11, it is, dosage cylinder
The import/of 20 or outlet, and now pump chamber 24 has maximum volume.This extreme extended position by
The structure of cylinder lubrication device 1 is determined, and in the exemplary embodiment, by by even
Connecing the mechanical end stop 33 that the end wall of device inner chamber 32 formed to be produced, this will enter one below
Walk detailed description.
In order to use steam-cylinder lubrication fluid filled dosage cylinder 20, actuation means 40 mobile putter
41,42, and then on the direction away from the first conduit 11, i.e. towards the bottom in Fig. 2 and 3,
Mobile plunger 30 (via plunger connector 31).The pressure causing pump chamber 24 is reduced by this, with
And cause the suction of steam-cylinder lubrication fluid.
Check valve 22 in injection channel will prevent lubricating fluid (or other materials) from injection
Conduit 14 and jet exit enter in intermediate conductor 12 (such as due to combustion pressure).
Reduce to relax the pressure in pump chamber 24, come from the lubricating fluid of pressurizing and lubricating fluid source
Start to flow from import 15, by inlet ducts 16 and the 3rd conduit 17, and enter into import
In conduit ring 18.From inlet ducts ring 18, lubricating fluid will flow through the check valve in feed path
23 and the 4th conduit 19 and enter in intermediate conductor 18, and flow through the first conduit 11 and enter
In dosage cylinder 20.
So, inlet ducts ring 18 is for distributing to all join from single import 15 by lubricating fluid
Amount cylinder 20.
Return/intake stroke terminates at by position determined by electronic control unit 50.Based on source
From the command signal of electronic control unit 50, the motion of linear actuators terminates immediately.
Can be adjusted by changing distance by the steam-cylinder lubrication Fluid Volume being inhaled into, plunger 30 can be
Dosage cylinder 20 shrinks, but when until injection stroke next time exists enough time when,
The electronic control unit 50 of plunger can determine linear actuators 40' is moved to limit punctured bit
Put, in order to use the pump chamber of steam-cylinder lubrication fluid filled heap(ed) capacity.
Preferably, the length of adapter inner chamber 32 is arranged to the length corresponding to dosage cylinder 20
Degree, thus when plunger connector 31 is in its maximum collapse position (adjacent adapter inner chamber 32
Rear wall 22) when, stopper head 30' is still positioned in dosage cylinder 20, and and dosage
The inwall of cylinder 20 defines tight seal.
When dosage cylinder 20 fills lubricating fluid wholly or in part when, the injection of lubricating fluid
Can start towards the motion of the first conduit 11 with opening plunger 30 by activating push rod 41,42,
Thus in dosage cylinder 20 build pressure.This is by the lubricating fluid being in dosage cylinder 20
Discharge.So, lubricating fluid will flow through the first conduit 11 and intermediate conductor 12.
Because the check valve in feed path 23 prevents towards inlet ducts ring 18 and the stream of import 15
Dynamic, lubricating fluid can flow only through the second conduit 13 by the check valve 22 in injection channel, and
And flow through injection catheter 14, and flowed out by jet exit 21.At this, lubricating fluid
It is directed to cylinder liner lubricating fluid point 112 via suitable pipeline.When electronic control unit 50
Send command signal to linear actuators 40' with terminate on injection direction mobile time, namely
When injection stroke has reached the desired amount corresponding to sprayed cylinder oil when, injection
Activity end.Then, can start to fill another circulation of dosage cylinder 20.
Actuation means 40 includes or may be connected to electronic control unit 50.At an embodiment
In, control unit 50 can be included in cylinder lubrication device 1, or comprises in the housing 10,
Or in linear actuators 40.In this case, control unit 50 may be connected to one group of biography
Some other systems of sensor or electromotor 100, these systems can provide engine piston 120
The information of position, and may also include the information of other engine running condition.Described sensing
Device can be at engine cylinder 110, or the crank position of record electromotor 100.
In another embodiment, electronic control unit 50 is engine control system (ECS).
Engine control system be already adapted to receive about engine piston 120 position and other start
The information of machine operation conditions, therefore may be structured to as one man control cylinder lubrication device 1 with this,
Such as based on about engine top dead center (TDC), with RPM calculate engine speed, or
Other electromotors of person or single cylinder operation conditions (the heavy oil sulfur content at such as fuel inlet valve
Or the sulfuric acid concentration in cylinder), (based on being derived from the signal of sensor in cylinder) cylinder mill
In damage, the temperature of cylinder liner 111, cylinder accumulation lubricating fluid, the alkaline sedimentation of accumulation,
The information such as lubricating oil BM, engine loading.
Electronic control unit 50 is so connected to and is configured to control the one of electromotor 100
The partly or entirely cylinder lubrication device 1 of cylinder 110.
Actuation means 40,40', 40 " or the housing 10 of cylinder lubrication device 1, can fill further
Having position sensor 44, position sensor 44 is connected to above-mentioned electronic control unit 50, to give
Electronic control unit provides signal 51, and this signaling bearer and connected about push rod 41,42 or plunger
Connect the information of the position of plunger 30 in the position of device and dosage cylinder 20.This information is used for improving
Accuracy of spray, electronic control unit 50 is connected to and is configured to provide for control signal 52 to closed loop
Actuation means 40 in control system, 40'.The embodiment party using electronic linear motor 40'
In formula, position sensor is preferably a part for electronic linear motor 40' unit.
One cylinder lubrication device 1 is used for a cylinder of electromotor, the quantity of dosage cylinder 20
Be suitable to the quantity of cylinder liner lubricating fluid point 112, and depend on the size of cylinder.It addition,
Single cylinder can use more than one cylinder lubrication device 1.
In one embodiment, electronic control unit 50 is configured to for each cycle of engine
The injection of lubricating fluid at least one times is provided.In one embodiment, when engine piston 120
The when of at least one direction by cylinder liner oil site 112, can be at two piston rings
There is provided between 121 and once spray.In one embodiment, when engine piston 120 is at least
The when that one side being upwardly through cylinder liner oil site 112, electronic control unit 50 is configured to
The injection of lubricating fluid at least one times is provided between every pair in two pairs of piston rings 121.One
In individual embodiment, electronic control unit is configured to provide at least from for each cycle of engine
Lubricating fluid is ejected into provide for every multiple cycle of engines and once sprays.On being suitable to
In another embodiment of any embodiment that face directly describes, electronic control unit 50 constructs
For providing lubricating fluid injection at least one times for each passage (up/down) of engine piston.
This is suitable to following embodiment, and in this embodiment, cylinder liner oil site 112 is in burning
During loop cycle, the engine piston position by cylinder liner oil site 112, is arranged on
In cylinder liner 111.
In another interchangeable embodiment, cylinder liner oil site 112 is arranged on cylinder liner
In Tong so that when piston 120 is in top dead-centre, cylinder liner oil site 112 is with minimum and the
Space between two minimum piston rings 121 (minimum pair of pistons ring) aligns.
In one embodiment, actuation means be linear actuators 40, such as Electronic Control and
The motor driven, preferably electronic linear motor 40' or Electronic Control linear hydraulic
Motor 40 ", such as, it is connected to the hydraulic cylinder of electronic control valve, electronic control valve for example, opens/
Close valve, proportioning valve 55 or servo valve.Actuation means 40 can accurately control push rod 41,41'
Motion, and can once receive command signal stop push rod 41, the motion of 41', thus
Control the motion of dosage plunger 30 in dosage cylinder 20, in order to the injection stroke of dosage plunger 30 is long
Degree can be adjusted for the needs of each individual injection.Therefore, the emitted dose of individual injection can
It is adjusted, to contain the minimum acceptable amount for associated cylinder actual operating state.It addition,
Cylinder lubrication device 1 is for each rotation of electromotor 100 or each burn cycle, sprayable
The steam-cylinder lubrication fluid of one or more dosages, or cylinder lubrication device 1 can be for multiple
The steam-cylinder lubrication fluid of the single dosage of motivation cyclic spray.Actuation means 40 can be controlled, with
A series of intermittent injection is carried out during the identical rotation of electromotor 100.
The dosage of injection can be filled pump chamber 24 by only part before ejecting and change.Cause
This, can keep shorter, such as when for linear activated for carrying out the time of less injection
The when that device 40' not having enough time to shrink dosing piston to their complete holosystolic position.
It addition, fill jet chamber by completely (or partly) and only part injection is present in pump
A certain amount of steam-cylinder lubrication fluid in room 24, injection changes (from 0 to pump in continuous frequency spectrum mode
Heap(ed) capacity/the volume of room 20).
Therefore, linear actuators 40 and dosage plunger 30 in response to control signal 52 from dosage
Arbitrarily starting or actual bit in the position range that plunger 30 is taked between their extreme position
Put, move to the terminal position of any desired between extreme position, thus carry out having by from
The injection stroke of the length that the signal of electronic control unit 50 is determined or intake stroke.This
Sample, control signal 52 determines what position injection stroke or the suction in dosage plunger connector 30
Gas stroke ends.In response to control signal 52, the motion of dosage plunger terminates the most instantaneous
's.
Therefore, linear actuators 40 may be in response to control signal 52 and directly stops.
Preferably, actuation means 40 also can adjust mobile putter 41,42 during injection stroke
Speed, and then adjust the speed of dosage plunger 30 in dosage cylinder 20, thus in single spray
During penetrating activity, dosage speed can change over time, to provide the speed of independent injection event
Rate forms (rate shaping).In one embodiment, during injection event, dosage
The speed of plunger is constant in injection period, and is suitable to from an injection event to the next one
Injection event.
The quickly response of actuation means 40 considers that each injection event is (relative to engine piston
Position) the dosage of independent speed forming curves (individual rate shaping profile)
And timing, and these aspects are made to be suitable for real engine operation conditions.Preferably, base
In the actual operating state of each cylinder, can individually adjust timing, dosage and speed and be formed
Curve, to be suitable for single cylinder.
Fig. 5 shows the another exemplary embodiment of cylinder lubrication device 1, and this device is substantially
Identical with the embodiment shown in Fig. 2 and 3, the most identical reference represents identical unit
Part or parts, different is only, and linear actuators is the hydraulic actuator with hydraulic cylinder form,
Preferably double acting hydraulic cylinder 40 ".Hydraulic cylinder 40 " via Electronic Control (electromagnetism) ratio liquid
Pressure valve 55 is used to selectively connect to source of high pressure hydraulic fluid 57 or is connected to fuel tank 59.Proportioning valve
55 receive command signal 52 from electronic control unit 50.There is hydraulic linear actuator 40 " vapour
The operation of this embodiment of cylinder lubricating arrangement 1, substantially with there is electronic linear motor 40'
The operation of embodiment of cylinder lubrication device 1 identical.
The teachings of the present invention has many advantages.
Can accurately select and thus optimize injection dosage, being namely the inside table of cylinder liner
Face provides the cylinder oil of accurate dosage.Therefore, it is possible to be applied to the lubrication flow of electromotor
Body minimizes, and reduces the shadow that environment is caused by the lubricating fluid being discharged in engine system
Ring.
Further, the abrasion that accurately lubrication will reduce in electromotor.The essence of engine lubrication fluid
Should indeed be with preventing the degeneration caused by such as sulfur.Therefore, the present invention is required by extending
Time between engine maintenance.
The present invention saves the hydraulically powered hydraulic pressure of lubricating fluid injection plunger the most further
Connect, be thus provided that the one of the electromotor with engine cylinder lubricating arrangement is simpler
Structure.
Additionally, due to its motility and the requirement of the confined space, the present invention can be used for having existed
Electromotor in.
It is one or more that different embodiments or implementation can get in following advantages.Need
It should be noted that this is not exhaustively to enumerate, it is understood that there may be do not describe at this other
Advantage.One advantage of the application teaching is, it has engine lubrication dress in design and operation
The context engine put provides greater flexibility.
Although teachings of the present application describes in detail to illustrate, known, this
A little details are only used to this purpose, in the case of the scope instructed without departing from the application,
Those skilled in the art may be modified.
Term used in claim " includes " not getting rid of other elements or step.Power
Term " one " or " one " used in profit requirement are not precluded from multiple.Uniprocessor or other
If unit can complete the function of the equipment for drying described in the claims.
Claims (10)
1. the steam-cylinder lubrication dress running two-stroke diesel multicylinder engine for large-sized low-speed
Putting (1), this electromotor has reciprocating-piston (120) in each cylinder (110), back and forth
Piston have on the inner surface of cylinder liner (111) slide piston ring (121), thus,
It is reciprocal via multiple sprays that cylinder lubrication device (1) is configured to relative to described piston (120)
Exit point (112) and be cylinder liner described inner surface provide accurate dosage steam-cylinder lubrication stream
Body, these spray site are around the circle distribution of cylinder (110), described cylinder lubrication device (1)
Including:
Multiple piston pumps, each piston pump has and is slidably moved in dosage cylinder (20)
Dosage plunger (30),
Each dosage cylinder (20) is in fluid communication with jet exit (21), and each injection
Outlet (21) may be connected to the spray site (112) of one of them cylinder (110)；
Plunger connector (31), it is connected to dosage plunger (30) and is configured such that described
Dosage plunger (30) moves simultaneously,
Described plunger connector (31) can move in the position range between two extreme positions,
It is characterized in that,
Control signal (52) be derived from be associated with described cylinder lubrication device (1) or with institute
State the electronic control unit (50) that electromotor (100) is associated,
Position sensor (44), it is connected to described electronic control unit (50), is used for passing through
Signal (51) is provided to detect dosage plunger (30) to described electronic control unit (50)
Position, described signal (51) carries about dosage plunger (30) described dosage cylinder (20)
The information of position,
Dosage plunger (30) is by the linear actuators (40) being connected to described plunger connector (31)
Driven, and described linear actuators (40) is configured in response to from described Electronic Control
The control signal (52) of unit (50), makes described dosage plunger (30) from described position model
Enclose interior any starting position and move to the terminal position of any desired in described position range,
Described electronic control unit (50) is connected to described linear actuators (40),
Described electronic control unit (50) is configured to provide signal (52) to closed loop control system
Described linear actuators (40) in system, and
Described control signal (52) determines what the position injection stroke at dosage plunger (30)
Terminate.
2. cylinder lubrication device as claimed in claim 1, it is characterised in that control signal
Determine that what the position intake stroke in plunger connector terminates.
3. cylinder lubrication device as claimed in claim 1, it is characterised in that the described limit
Position is mechanical end stop.
4. cylinder lubrication device as claimed in claim 1, it is characterised in that described linearly
Actuator (40) may be in response to described control signal (52) and directly stopped.
5. cylinder lubrication device as claimed in claim 4, it is characterised in that described linearly
Actuator (40) can directly stop at by position determined by electronic control unit (50).
6. cylinder lubrication device as claimed in claim 4, it is characterised in that described cylinder
Lubricating arrangement is configured to provide for a lubricating fluid injection for each cycle of engine
Controlled length of stroke for the particular spray carried out.
7. cylinder lubrication device as claimed in claim 4, it is characterised in that described cylinder
Lubricating arrangement is configured to control rushing of dosage plunger (30) based on real engine operation conditions
Cheng Changdu.
8. cylinder lubrication device as claimed in claim 7, it is characterised in that described cylinder moistens
Sliding device is configured to control the stroke speed of dosage plunger (30) based on engine running condition.
9. cylinder lubrication device (1) as claimed in claim 4, it is characterised in that cylinder
Lubricating arrangement (1) is configured to control dosage plunger (30) based on specific and actual cylinder operation conditions
Length of stroke and/or speed.
10. there is the two-stroke diesel multicylinder engine that the large-sized low-speed of crosshead runs,
It includes cylinder lubrication device as claimed in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510490390.XA CN105114197B (en) | 2012-05-15 | 2013-05-10 | Cylinder lubricating device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DKPA201200343 | 2012-05-15 | ||
| DKPA201200343 | 2012-05-15 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510490390.XA Division CN105114197B (en) | 2012-05-15 | 2013-05-10 | Cylinder lubricating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103423013A CN103423013A (en) | 2013-12-04 |
| CN103423013B true CN103423013B (en) | 2016-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310173320.2A Active CN103423013B (en) | 2012-05-15 | 2013-05-10 | Cylinder lubrication device |
| CN201510490390.XA Active CN105114197B (en) | 2012-05-15 | 2013-05-10 | Cylinder lubricating device |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510490390.XA Active CN105114197B (en) | 2012-05-15 | 2013-05-10 | Cylinder lubricating device |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP5746727B2 (en) |
| KR (1) | KR101506313B1 (en) |
| CN (2) | CN103423013B (en) |
| DE (1) | DE102013104821B4 (en) |
| DK (1) | DK177785B1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014210909B4 (en) * | 2014-06-06 | 2019-03-07 | Skf Lubrication Systems Germany Ag | lubricant pump |
| DK179118B1 (en) * | 2016-08-17 | 2017-11-13 | Man Diesel & Turbo Filial Af Man Diesel & Turbo Se Tyskland | Cylinder lubrication apparatus for a large two-stroke compression-ignited internal combustion engine |
| DK179482B1 (en) * | 2017-12-13 | 2018-12-14 | Hans Jensen Lubricators A/S | A large slow-running two-stroke engine, a method of lubricating it, and an injector with a hydraulic-driven pumping system for such engine and method |
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| KR100804769B1 (en) * | 2006-08-25 | 2008-02-19 | 장인권 | Pump module |
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| DK176934B1 (en) * | 2007-05-18 | 2010-05-31 | Hans Jensen Lubricators As | Lubrication apparatus and method for dosing cylinder lubricating oil |
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2013
- 2013-05-10 CN CN201310173320.2A patent/CN103423013B/en active Active
- 2013-05-10 DK DK201300271A patent/DK177785B1/en active
- 2013-05-10 DE DE102013104821.8A patent/DE102013104821B4/en active Active
- 2013-05-10 CN CN201510490390.XA patent/CN105114197B/en active Active
- 2013-05-10 KR KR1020130053026A patent/KR101506313B1/en active IP Right Grant
- 2013-05-10 JP JP2013099785A patent/JP5746727B2/en active Active
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| CH673506A5 (en) * | 1987-11-05 | 1990-03-15 | Sulzer Ag | Cylinder lubrication device for IC engine - has common hydraulic drive coupled to piston-cylinder system for each lubrication stroke around wall of each engine cylinder |
| CN1504670A (en) * | 2002-11-28 | 2004-06-16 | 三菱重工业株式会社 | Cylinder lubricating apparatus |
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Also Published As
| Publication number | Publication date |
|---|---|
| KR101506313B1 (en) | 2015-03-26 |
| CN105114197A (en) | 2015-12-02 |
| CN105114197B (en) | 2020-01-14 |
| JP5746727B2 (en) | 2015-07-08 |
| DK177785B1 (en) | 2014-07-07 |
| DK201300271A (en) | 2013-11-16 |
| DE102013104821B4 (en) | 2014-12-24 |
| KR20130127925A (en) | 2013-11-25 |
| DE102013104821A1 (en) | 2013-11-21 |
| CN103423013A (en) | 2013-12-04 |
| JP2013238222A (en) | 2013-11-28 |
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Address after: Copenhagen Patentee after: Man energy solutions (man energy solutions, Germany Ag) branch Address before: Copenhagen Patentee before: Man Diesel AS |