CN105569760B - Control method for quickly inverting reciprocating piston internal combustion engine - Google Patents
Control method for quickly inverting reciprocating piston internal combustion engine Download PDFInfo
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- CN105569760B CN105569760B CN201510657252.6A CN201510657252A CN105569760B CN 105569760 B CN105569760 B CN 105569760B CN 201510657252 A CN201510657252 A CN 201510657252A CN 105569760 B CN105569760 B CN 105569760B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/02—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for reversing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
- F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
- F02D13/028—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation for two-stroke engines
- F02D13/0284—Variable control of exhaust valves only
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2250/00—Engine control related to specific problems or objectives
- F02D2250/06—Reverse rotation of engine
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Valve Device For Special Equipments (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The present invention relates to a kind of control methods for quickly inverting reciprocating piston internal combustion engine.Control method (the uniflow scavenging formula large two-stroke diesel engine that the internal-combustion reciprocating-pisto is specifically low speed operation) according to the invention for quickly inverting or braking the rotation of the crankshaft of internal-combustion reciprocating-pisto in the first rotational direction includes: in the deboost phase, it interrupts to the internal-combustion reciprocating-pisto and supplies fuel, and in the first crankangle being located in the region with the top dead center position of the associated first piston of the first cylinder, hydraulic medium is provided under the predetermined maximum cracking pressure of the hydraulic valve device of the first row valve of first cylinder, so that in the second crankangle, most when the first piston passes through the top dead center position, the first row valve is automatically opened by the hydraulic valve device.
Description
Technical field
The present invention relates to a kind of for the rotation of the crankshaft of reciprocating piston internal combustion engine in the first rotational direction is quick
The control method of reversion or braking, specifically, the internal combustion engine are the uniflow scavenging formula large two-stroke diesel engine of low speed operation,
The internal-combustion reciprocating-pisto includes cylinder, and in the cylinder, piston is arranged to can be corresponding with 180 ° of crankangle
Top dead centre and lower dead center corresponding with 0 ° or 360 ° of crankangle between move back and forth, and the cylinder have exhaust
Door, it is described hydraulic by hydraulic valve device by exhaust valve described in hydraulic medium hydraulic actuation under scheduled cracking pressure
Medium is preferably hydraulic oil.
Background technique
It is often used as the driving unit of steamer when large-scale diesel engine or is also used in fixed operation, for example, for driving
The large-scale generator produced electricl energy.In this respect, engine is run as usual in considerable time section with ongoing operation, this
So that the requirement to operational safety and availability is high.In especially long refuelling interval, the low consumption of fuel and work materials
Therefore damage and economic manipulation are the central standards that operator operates machine.This low speed with big cylinder bore diameter runs diesel oil
The piston operation action of machine be refuelling gap length, availability, lubricant consumption, also directly against operating cost and therefore needle
To the exhausted qualitative factor of operating efficiency, there are also other factors.
, there has long been a desire for that and needing to the greatest extent may be used in the shortest possible time and therefore in emergency situations in the transport of deep-sea
Engine is inverted by the steamer braking of full speed or as quickly as possible in distance that can be short, so that propeller exists as quickly as possible
It is rotated in opposite direction, so that steamer can continue to navigate by water in the opposite direction immediately as far as possible.Although for relatively small internal combustion
It is various when being proved to effective process and being widely applied for a long time and having used very long for this purpose for motor vessel or motor boat
Between and often only can execute reversion only by transmission device, still " emergency braking ", that is, since at full speed fast braking
To be equipped with large-scale reciprocating piston internal combustion engine (such as, be equipped with low speed operation uniflow scavenging formula large two-stroke diesel engines)
Large ship for be the problem of not being solved largely.In addition to the braking of steamer, this is related to and engine is from one
Direction of rotation is quickly inverted to the closely related problem of opposite direction of rotation.
For the uniflow scavenging formula large two-stroke diesel engines of low speed operation, being particularly present following can not be underestimated
Problem: because having these engines, due to the large scale and power of these engines, so being discharged in practice in engine
Transmission device and/or clutch are obviously used between propeller, thus propeller connects by axis is fixed in a rotatable way
It is connected to the crankshaft of the large-scale diesel engine in the steamer with this engine.
Therefore it is compared compared to the driving that transmission device is arranged between propeller and engine, the construction of the driving is generally acknowledged
It is obviously simpler for ground.However, the shortcomings that this not belt driver and construction not with clutch, is that propeller is always
(that is, under every kind of mode of operation) is fixedly attached to engine and in a rotatable way at least in the mode of operation of engine
As long as can not be disconnected with engine under (that is, engine does not become the state stagnated completely).That is, stopping engine
Under mode of operation to brake steamer (substantially meaning actually to have interrupted the fuel supply to engine), steamer is not
Just stop on the spot immediately, but most starts only gradually will little by little lose speed for since its huge inertia continues to navigate by water
Degree.
On this point, propeller is considered no longer being driven by the engine at this time；However, it is by between propeller and water
Continue relative velocity driving, advances in water.However, due to propeller be fixedly attached in a rotatable way engine and
It can not also be disconnected with engine, therefore engine is also driven by propeller in such an operation state at this time.It means that stopping
Only after fuel supply, engine will but continue to rotate in original orientation in considerable time section because it at this time by
Impeller driven.
Can only be realized by restarting engine in the reverse rotation direction by steamer braking or will be before steamer
The acceleration of line direction reversion.For most known ship engine, rushed especially for huge uniflow scavenging formula large size two
Journey diesel engine, can be only by the way that at suitable time point (that is, with suitable crankangle), by compressed air, (also referred to as term " is opened
Dynamic air ") it is pushed down into cylinder jacket in enough high pressures, so that making engine required in piston by starting air effect
Reverse rotation direction on restart, to realize this acceleration.
Enormous power (the institute as above applied on the piston in the cylinder jacket of the engine by propeller by crankshaft
State, the enormous power makes the engine although stopping supplying fuel continue to rotate in original orientation), so earliest when starting
The maximum available pressure of air is enough to compensate propeller when acting on the power of piston, and engine then can in the opposite direction again
Starting, so that engine can be configured to rotate fast enough in the opposite direction under the action of starting air, so that starting
Machine finally can independently be restarted when restarting and supplying fuel in the opposite direction.When engine is in opposite direction of rotation
When upper restarting, the propeller being fixedly connected in a rotatable way with engine is naturally equally under the action of engine
It driving in the opposite direction, the braking of steamer then can ramp up as a result, and forward until steamer finally becomes to stagnate, or
Person is as needed, and steamer can start to move ahead in the opposite direction.
It is above-mentioned and before by steamer brake and invert convention process the shortcomings that be obvious.On the other hand, will
Steamer (steamer of the uniflow scavenging formula large two-stroke diesel engine especially, with low speed operation) needs the plenty of time, because
Before engine can restart in the opposite direction it may first have to which carry out some time waits until that steamer has lost
It loses enough speed and has become slow enough, mended so that air can be activated by the engine driving that propeller carries out
It repays.This length that still to take an undesirably long time, when must in emergency situations reliably, make steamer system very fast immediately
When dynamic (for example, bumping against in order to prevent with iceberg, another barrier or another steamer), this is a big disadvantage.Famous
Titanic (Titanic) disaster allows people to remember clearly so far,, cannot be immediately by steamer other than other in this disaster
Braking.Even if Titanic is driven by the uniflow scavenging formula large two-stroke diesel engine of low speed operation, this problem base
It is the same in sheet.
Make when braking in this way or be inverted to it is opposite before line direction hour wheel shipping agency into distance minimize, often try to
Engine is inverted in the earliest time as far as possible and supplying starting air to cylinder jacket.However, engine is by propeller
Driving is faster to run up in old side, in order to start the reversion in opposite direction, the starting air needed or starting
Air energy is more.This is not only at high cost and is that energy consumption is big, because first choice must be produced using corresponding compressor
It is raw to start air and will start air storage in pressure storing body.But this method also creates risk below: disappearing
More or fewer starting air total stocks are consumed, it is impossible that engine starts in the opposite direction.So not only
Braking is further delayed, and can even become security risk, because in this case, it is necessary to it is empty to provide new starting again
Gas can bring lethal effect, because steamer is this and at the same time engine can be no longer again started up so in some cases
It is not driven under situation.
Summary of the invention
Therefore, the purpose of the present invention is to provide one kind can (specifically, the uniflow scavenging formula of low speed operation be large-scale by engine
Two stroke diesel engine) the more effective in the opposite direction and method that faster inverts, wherein it dramatically avoids according to existing
The problem of technical description；Specifically, fatal safety problem well known in the prior art can be avoided and can economically and more
In addition execute the reversion of engine with saving energy.
The subject of the present invention for meeting these purposes is characterized in that: being interrupted in the deboost phase into the reciprocating piston
Combustion engine supplies fuel, and in the first crank being located in the region with the top dead center position of the associated first piston of the first cylinder
When angle, provided under the predetermined maximum cracking pressure of the hydraulic valve device of the first row valve of first cylinder described hydraulic
Medium, so that most when the first piston passes through the top dead center position, passing through the valve liquid in the second crankangle
Pressure device automatically opens the first row valve.
Especially advantageous embodiment of the invention is as follows:
In the first preferred embodiment, after second crankangle is located at the top dead centre of the first piston, in institute
State between the top dead centre and lower dead center of first piston, the value of second crankangle between 180 ° and 360 °,
It is preferably ranges between 180 ° and 225 °, or between 180 ° and 200 °, particularly preferably between 180 ° and 190 °.
In the second preferred embodiment, between second crankangle and the lower dead center of the first piston
When third crankangle in region, the first row valve is reclosed, to generate predetermined vacuum in first cylinder.
In third preferred embodiment, in rotation of the reciprocating piston internal combustion engine in first direction of rotation
The third crankangle is selected in the deboost phase, so that by being closed the first exhaust in the third crankangle
Door, generates vacuum in first cylinder, thus to the reciprocating piston internal combustion engine on first direction of rotation
The auxiliary for the vacuum that the braking of rotation is generated.
In the 4th preferred embodiment, the reversion rank of the reciprocating piston internal combustion engine after the deboost phase
The third crankangle is selected in section, so that by being closed the first row valve in the third crankangle, described the
Generate vacuum in one cylinder, thus by supplied in the second cylinder the reciprocating piston internal combustion engine that is inspired of fuel with
Restarting on the second opposite direction of rotation of first direction of rotation obtains the vacuum generated in first cylinder
Auxiliary.
In the 5th preferred embodiment, in four crankangle between the lower dead center and the top dead centre,
Preferably when terminating four crankangle for being supplied to scavenging air and reaching later in the cylinder, it is closed the first exhaust
Door.
In the 6th preferred embodiment, selected in the deboost phase of the rotation of the reciprocating piston internal combustion engine
4th crankangle, so that by being closed the first row valve in four crankangle, in first cylinder
Excessive pressure is generated, so that the braking of the rotation to the reciprocating piston internal combustion engine on first direction of rotation is produced
The auxiliary of raw excessive pressure.
In the 7th preferred embodiment, the reversion rank of the reciprocating piston internal combustion engine after the deboost phase
The 4th crankangle is selected in section, so that by being closed the first row valve in four crankangle, described the
Excessive pressure is generated in one cylinder, thus the reciprocating piston internal combustion engine inspired by supplying fuel in the second cylinder
Restarting on second direction of rotation opposite with first direction of rotation obtains the mistake generated in first cylinder
The auxiliary of big pressure.
In the 8th preferred embodiment, the reciprocating piston internal combustion engine that is inspired during the reversion stage with institute
The restarting stated on opposite second direction of rotation in the first direction of rotation obtains following auxiliary, i.e., will make a reservation for minimum
Starting air be introduced at least one cylinder of the reciprocating piston internal combustion engine.
In the 9th preferred embodiment, the starting air is sequentially only introduced into the reciprocating piston internal combustion engine
In some cylinders, it is preferable that or even only introduce in selected single cylinder, without being introduced into other any cylinders, existed with auxiliary
Restarting during the reversion stage on second direction of rotation.
In the tenth preferred embodiment, the reciprocating piston internal combustion engine inspired during the reversion stage exists
Restarting on second direction of rotation opposite with first direction of rotation is without using starting air
Occur.
In the 11st preferred embodiment, the reciprocating piston internal combustion engine is the driving unit of steamer.
Therefore, the present invention relates to a kind of rotations for by the crankshaft of internal-combustion reciprocating-pisto in the first rotational direction
It quickly inverts or the control method of braking, the internal-combustion reciprocating-pisto is specifically the uniflow scavenging formula large size two of low speed operation
Stroke diesel engine, the internal-combustion reciprocating-pisto include cylinder, in the cylinder, piston be arranged to can with 180 °
Move back and forth between the corresponding top dead centre of crankangle and lower dead center corresponding with 0 ° or 360 ° of crankangle, and the gas
Cylinder have exhaust valve, can by hydraulic valve device under scheduled cracking pressure by with hydraulic medium hydraulic actuation be vented
Door, the hydraulic medium are preferably hydraulic oil.According to the present invention, in the deboost phase, interrupt to the reciprocating piston internal combustion
Machine supplies fuel, and in the first crankangle being located in the region with the top dead center position of the associated first piston of the first cylinder
When, hydraulic medium is provided under the predetermined maximum cracking pressure of the hydraulic valve device of the first row valve of first cylinder,
So that most when the first piston passes through the top dead center position, being filled by the hydraulic valve in the second crankangle
It sets and automatically opens the first row valve.
The present invention provides one kind for the first time can be by engine (specifically, the uniflow scavenging formula large-sized two-stroke of low speed operation
Diesel engine) it is more effective and be inverted to opposite direction of rotation more quickly while additionally being able to save the valuable side for starting air
Method.In the particularly preferred embodiment of the method according to the invention, for example, being supplied to engine propeller is utilized
While braking energy, in addition can in steamer absolutely not any starting air in the case where inspire in opposite direction of rotation
Restarting, when the method according to the invention is used to that the engine of steamer to be inverted or be braked, this is not only represented naturally
The improvement that urgent aspect can not be underestimated, and especially also represent the huge advance in terms of safe practice.
Actually in particularly preferred embodiment, reciprocating piston internal combustion engine is that the direct current of the low speed operation of steamer is swept
Gas formula large two-stroke diesel engine, the steamer are, for example, the container ship with huge engine, the huge engine
There is the up to power of 10,000kW or even greater with such as up to ten two or more cylinders and each cylinder
Power.
As those skilled in the art itself knows, exist in the normal operating state lower piston of internal-combustion reciprocating-pisto
Move back and forth between top dead centre and lower dead center in cylinder jacket, and piston by with piston and propeller are operationally fixed connects
The crankshaft that connects drives propeller.By with programmable control unit by hydraulic valve device come the gas of hydraulic starting cylinder jacket
Exhaust valve on cylinder cap, programmable control unit actually may include hydraulic device and electronic device.On this point, starting row
The corresponding crankangle of valve can substantially be made a reservation for as needed by programmable control unit.Pass through actuating starting air
Valve engine or can start engine under rotation speed lesser enough to start from dead state, and change is started
The direction of rotation of machine.
Specific embodiment
For a better understanding of the present invention, reciprocating-piston known per se will briefly, be schematically looked back again below
General operation mode under the normal operating state of formula internal combustion engine.In the frame of the application, 0 ° or 360 ° of crankangle difference
It is indicated with lower dead center UT and 180 ° of crankangle is indicated with top dead centre OT.
Since the lower dead center for corresponding to 0 ° of crankangle, piston is being grasped on the direction OT for corresponding to 180 ° of crankangles first
Make to move under state.When piston is located at close to the position of lower dead center, scavenging slit is unclamped simultaneously in the lower area of cylinder jacket
And exhaust valve is opened under normal operating condition.As long as piston unclamps scavenging slit, fresh air passes through scavenging slit and is supplied
It should be to the combustion space of cylinder jacket and at the same time being removed from combustion space because piston is moving on the direction towards top dead centre
Fall combustion residue.When piston has made between combustion space and scavenging slit that there is no any companies by scavenging slit completely
When logical, as crankangle increases, exhaust valve will be closed by control device at scheduled crankangle.During other, use
Combustion of the injection valve to the engine formed by upper cylinder region, the cylinder head positioned at upper cylinder overlying regions and piston base
It burns space and supplies fuel, lighted in the air that the fuel is heated in the region of top dead centre by compression, simultaneously with after-combustion
And energy is generated, increase is released stress in combustion space by this energy.
After through top dead centre, piston moves up in the direction of the lower dead center towards the crankangle corresponding to 360 ° again
It is dynamic.Under the normal operating of steamer and forward traveling, then it is again turned on exhaust valve and corresponds to the song more much bigger than 180 °
Handle angle starts the new round cylinder operation period.
In the case where steamer will be braked, particularly, when should be in an emergency situation as short as possible apart from interior system
Reciprocating piston internal combustion engine is also arranged to the different operating states braked or inverted with known method by driving wheel ship time.In
In first step, it is known that interruption supplies fuel in the cylinder jacket of reciprocating piston internal combustion engine.Pass through interrupts fuel
Supply, the rotation speed for realizing engine reduce first, this causes steamer moderately to slow down first.If not taking other arrange
It applies, then the friction due to steamer in water, the speed of steamer significantly reduces.This friction is usually fairly small, so that the speed of steamer
Degree only very slowly reduces.Interrupts fuel supply after no longer by reciprocating piston internal combustion engine drive propeller at this time by
The kinetic energy driving that steamer still has, operates, and drive the propeller by crankshaft can revolve at this time as turbine
The engine that the mode turned is fixedly connected.
If the control of exhaust valve is kept as in normal operating and as practiced before in the prior art at this time
Make constant, then a part for being known as steamer kinetic energy is converted into compression of the crank angle range in the cylinder between 0 ° and 180 °
Energy；However, during piston is moved to lower dead center from top dead centre, when the scavenging air follow-up expansion for including in cylinder jacket,
This compression energy is almost again returned into steamer in the form of kinetic energy by propeller.
The present invention from this point and is based on the recognition that only by suitable control exhaust valve substantially at this time
Can engine quickly be inverted or be braked, and in fact can in particular even in no starting air and at least with than
The few starting air needed in the prior art before in the case where, restart in the opposite direction, on condition that according to this hair
It is bright dexterously to have used the braking energy that engine is transmitted to by propeller.
In the preferred embodiment of control process according to the invention, the second crankangle is chosen to be in first piston
After top dead centre, between the top dead centre of first piston and lower dead center, the value of the second crankangle between 180 ° and
Between 360 °, be preferably ranges between 180 ° and 225 °, or between 180 ° and 200 °, particularly preferably between 180 ° and
Between 190 °.
The further improvement of braking effect when inverting in order to obtain stops positioned at the second crankangle and the lower of first piston
Point between region in third crankangle when, first row valve is reclosed, to generate predetermined vacuum in the first cylinder.
According to the reversion stage for the engine for taking this measure, two kinds of good effects can be substantially generated.
If executed in the first cylinder in the deboost phase that reciprocating piston internal combustion engine rotates in the first rotational direction
Generate vacuum and if accordingly selection third crankangle, can by properly selection third crankangle in the case where be closed
Exhaust valve generates vacuum in the first cylinder, so that the system of the rotation to reciprocating piston internal combustion engine in the first rotational direction
The auxiliary of the dynamic vacuum generated.Thus cause at least slight suction effect to piston as a result, so that causing to move piston
In addition dynamic corresponding braking, eliminates kinetic energy from engine in this way, therefore accelerate braking.
On the other hand, can also be selected in the reversion stage of reciprocating piston internal combustion engine after the deboost phase
Three crankangles so that by third crankangle be closed first row valve, generate vacuum in the first cylinder, thus by
The reciprocating piston internal combustion engine that second cylinder supply fuel is inspired is on second direction of rotation opposite with the first direction of rotation
Restarting obtains the auxiliary of the vacuum generated in the first cylinder.It means that due to the first rotation side relative to engine
To producing braking suction effect in the first cylinder, therefore the restarting of engine is (that is, engine is with first
Reversion on the second new direction of rotation of the opposite engine in direction of rotation) facilitated or is assisted, allow to become
It inverts earlier, or is possible to also make required starting air minimum or has even exempted from starting air completely.
Other additional or substitution the measure of the method according to the invention includes between lower dead center and top dead centre
When four crankangles, preferably terminate scavenging air is supplied in cylinder after reach four crankangles when, closure the
One exhaust valve.
I.e. using finally specified measure, situation is, according to the engine for executing exhaust valve closure at the 4th crankangle
The reversion stage can produce substantially other two kinds of good effects.
On the one hand, when in the deboost phase in the rotation of reciprocating piston internal combustion engine select the 4th crankangle make by
When closure first row valve generates excessive pressure in the first cylinder when four crankangles, to reciprocating piston internal combustion engine first
The auxiliary for the excessive pressure that the braking of rotation on direction of rotation is generated.In fact, because of the pressure due to being generated in cylinder
Power and causing eliminates kinetic energy (this is because kinetic energy is converted into pressure energy) from engine, and thus engine is the
Braking on one direction of rotation obtains very effective auxiliary.
On the other hand, the 4th crankangle is selected in the reversion stage of reciprocating piston internal combustion engine after in the deboost phase
So that excessive pressure is generated in the first cylinder by being closed first row valve at the 4th crankangle, so that in the first cylinder
The excessive pressure of generation with by supplying the reciprocating piston internal combustion engine that is inspired of fuel opposite with the first direction of rotation the
Restarting on two direction of rotation fit when engaged, and the first cylinder can be obtained in restarting in the opposite direction of rotation
Effective auxiliary of the excessive pressure of middle generation.
It means that since the first direction of rotation relative to engine generates brake pressure effect in the first cylinder,
Therefore the restarting of engine is (that is, engine is on the second new direction of rotation of the engine opposite with the first direction of rotation
Reversion) facilitated or assisted, allow to invert earlier, or be possible to can also to make required starting air minimum or
Starting air is even exempted from completely.
Specifically, when reversion should particularly quick occur or when for example steamer needs emergency braking or if there is
When needing quickly to execute other situations of the method according to the invention, the reciprocating-piston that is inspired during the reversion stage
In addition restarting of the formula internal combustion engine on second direction of rotation opposite with the first direction of rotation can obtain following naturally
Auxiliary, i.e., will make a reservation for minimal amount of starting air and be introduced at least one cylinder of reciprocating piston internal combustion engine, can also add as a result,
Speed is inverted to the second direction of rotation or accelerates the braking to the first direction of rotation.
Specifically (but moreover), it when needing very quick process unlike in emergency circumstances, can will also open
Dynamic air sequentially only introduces in some cylinders of reciprocating piston internal combustion engine, it is preferable that or even only introduce selected single gas
In cylinder, without being introduced into other any cylinders, to assist the restarting during the reversion stage in a second rotational direction.
It is reciprocal that the method according to the invention even allows for (as already mentioned above) to be inspired during the reversion stage
Restarting of the internal-combustion piston engine on second direction of rotation opposite with the first direction of rotation is completely without using starting sky
Occur in the case where gas, this is because exhaust valve is dexterously controlled very much, so that ideally having used the effect in propeller
Under feed back to the kinetic energy of engine.
In fact, reciprocating piston internal combustion engine have multiple cylinders (the multiple cylinder is arranged in a way known,
Different crank shaft angles is at least partially under the same time in all cases) so that use mentioned herein can be taken simultaneously
In the measure of braking or the reversion of acceleration motor, so that generating the additive effect of different measure.
It is appreciated that embodiments of the present invention described in this application can also be independently of the application group in any suitable manner
It closes, described particular implementation is only constructed as only being citing.Technical staff is immediately appreciate that described reality of the invention
Simple advantageous other improvement of mode are applied, and understand that the present invention also contemplated these simple other improvement naturally.
Claims (17)
1. it is a kind of for by the crankshaft of reciprocating piston internal combustion engine in the first rotational direction rotation quickly invert or braking
Control method, the reciprocating piston internal combustion engine include cylinder, and in the cylinder, piston is arranged to can be in the song with 180 °
Move back and forth between the corresponding top dead centre in handle angle and lower dead center corresponding with 0 ° or 360 ° of crankangle, and the cylinder
With exhaust valve, pass through exhaust valve described in hydraulic medium hydraulic actuation under scheduled cracking pressure by hydraulic valve device,
It is characterized in that, interrupting to the reciprocating piston internal combustion engine in the deboost phase and supplying fuel, and be located at and the first gas
When the first crankangle in the region of the top dead center position of the associated first piston of cylinder, in the first row valve of first cylinder
Hydraulic valve device predetermined maximum cracking pressure under the hydraulic medium is provided so that in the second crankangle, most early in
When the first piston passes through the top dead center position, the first exhaust is automatically opened by the hydraulic valve device
Door,
Wherein, the third crankangle in the region between second crankangle and the lower dead center of the first piston
When, the first row valve is reclosed, to generate predetermined vacuum in first cylinder, and
Wherein, institute is selected in the deboost phase of the rotation of first direction of rotation in the reciprocating piston internal combustion engine
Third crankangle is stated, so that producing in first cylinder by being closed the first row valve in the third crankangle
Raw vacuum, thus the braking of the rotation to the reciprocating piston internal combustion engine on first direction of rotation generated it is true
Empty auxiliary.
2. control method according to claim 1, wherein second crankangle is located at the top dead centre of the first piston
Later, between the top dead centre of the first piston and lower dead center, the value of second crankangle between 180 ° and
Between 360 °.
3. control method according to claim 1 or 2, wherein the reciprocating-piston after the deboost phase
The third crankangle is selected in the reversion stage of internal combustion engine, so that by being closed the first row in the third crankangle
Valve generates vacuum in first cylinder, thus the past resurrection inspired by supplying fuel in the second cylinder
Restarting of the piston type internal-combustion engine on second direction of rotation opposite with first direction of rotation obtains first cylinder
The auxiliary of the vacuum of middle generation.
4. control method according to claim 1 or 2, wherein between the lower dead center and the top dead centre
When four crankangles, it is closed the first row valve.
5. control method according to claim 4, wherein in the braking of the rotation of the reciprocating piston internal combustion engine
The 4th crankangle is selected in stage, so that by being closed the first row valve in four crankangle, described
Excessive pressure is generated in first cylinder, thus the rotation to the reciprocating piston internal combustion engine on first direction of rotation
Brake the auxiliary of the excessive pressure generated.
6. control method according to claim 4, wherein the reciprocating piston type internal combustion after the deboost phase
The 4th crankangle is selected in the reversion stage of machine, so that by being closed the first exhaust in four crankangle
Door, generates excessive pressure in first cylinder, thus by supplied in the second cylinder fuel inspired it is described reciprocal
Restarting of the internal-combustion piston engine on second direction of rotation opposite with first direction of rotation obtains first gas
The auxiliary of the excessive pressure generated in cylinder.
7. control method according to claim 1 or 2, wherein the reciprocating-piston inspired during the reversion stage
Restarting of the formula internal combustion engine on second direction of rotation opposite with first direction of rotation obtains following auxiliary, i.e., will
Make a reservation for minimal amount of starting air to be introduced at least one cylinder of the reciprocating piston internal combustion engine.
8. control method according to claim 7, wherein the starting air is sequentially only introduced the reciprocating-piston
In some cylinders of formula internal combustion engine, to assist the restarting during the reversion stage on second direction of rotation.
9. control method according to claim 1 or 2, wherein what is inspired during the reversion stage is described reciprocal
Restarting of the internal-combustion piston engine on second direction of rotation opposite with first direction of rotation is empty without using starting
Occur in the case where gas.
10. control method according to claim 1 or 2, wherein the reciprocating piston internal combustion engine is the driving list of steamer
Member.
11. control method according to claim 1, wherein the reciprocating piston internal combustion engine is the direct current of low speed operation
Scavenging type large two-stroke diesel engine.
12. control method according to claim 1, wherein the hydraulic medium is hydraulic oil.
13. control method according to claim 2, wherein second crankangle is between 180 ° and 225 °.
14. control method according to claim 2, wherein second crankangle is between 180 ° and 200 °.
15. control method according to claim 2, wherein second crankangle is between 180 ° and 190 °.
16. control method according to claim 1 or 2, wherein scavenging air is supplied to it in the cylinder terminating
When four crankangle reached afterwards, it is closed the first row valve.
17. control method according to claim 7, wherein the starting air is only introduced in selected single cylinder,
Without being introduced into other any cylinders, to assist the opening on second direction of rotation again during the reversion stage
It is dynamic.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP14191349 | 2014-10-31 | ||
| EP14191349.1 | 2014-10-31 |
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| CN105569760A CN105569760A (en) | 2016-05-11 |
| CN105569760B true CN105569760B (en) | 2019-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510657252.6A Active CN105569760B (en) | 2014-10-31 | 2015-10-13 | Control method for quickly inverting reciprocating piston internal combustion engine |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP3015663B1 (en) |
| JP (1) | JP6807150B2 (en) |
| KR (1) | KR102390243B1 (en) |
| CN (1) | CN105569760B (en) |
| DK (1) | DK3015663T3 (en) |
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| DE895550C (en) * | 1943-01-05 | 1953-11-05 | Fried Krupp Germaniawerft Ag | Device for braking internal combustion engines, in particular reversible marine propulsion engines |
| GB722568A (en) * | 1951-09-27 | 1955-01-26 | Suedwerke Motoren Und Kraftwag | Valve gear for two-stroke uniflow scavenging engines to facilitate braking |
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| WO2006122570A1 (en) * | 2005-05-13 | 2006-11-23 | Daimlerchrysler Ag | Two-stroke engine braking process for a supercharged internal combustion engine |
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| JPH0521139U (en) * | 1991-09-03 | 1993-03-19 | 三菱重工業株式会社 | Rotational braking system for 2-cycle large diesel engine |
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| TW555934B (en) * | 2001-10-24 | 2003-10-01 | Yamaha Motor Co Ltd | Engine start control method and device |
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| JP4825786B2 (en) | 2007-12-20 | 2011-11-30 | 本田技研工業株式会社 | 4-cycle engine stroke discrimination device |
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2015
- 2015-09-08 EP EP15184261.4A patent/EP3015663B1/en active Active
- 2015-09-08 DK DK15184261.4T patent/DK3015663T3/en active
- 2015-10-13 CN CN201510657252.6A patent/CN105569760B/en active Active
- 2015-10-16 JP JP2015204151A patent/JP6807150B2/en active Active
- 2015-10-16 KR KR1020150145002A patent/KR102390243B1/en active IP Right Grant
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190927736A (en) * | 1909-11-29 | 1910-07-21 | Alexander Pearson Maclaren | Improvements relating to Motor Boats. |
| DE895550C (en) * | 1943-01-05 | 1953-11-05 | Fried Krupp Germaniawerft Ag | Device for braking internal combustion engines, in particular reversible marine propulsion engines |
| GB722568A (en) * | 1951-09-27 | 1955-01-26 | Suedwerke Motoren Und Kraftwag | Valve gear for two-stroke uniflow scavenging engines to facilitate braking |
| US4226216A (en) * | 1976-09-30 | 1980-10-07 | Societe D'etudes De Machines Thermiques S.E.M.T. | Method of quick pneumatic braking of a diesel engine |
| KR20050060985A (en) * | 2003-12-17 | 2005-06-22 | 정영섭 | Method for braking a ship utilizing engine and braking device thereof |
| WO2006122570A1 (en) * | 2005-05-13 | 2006-11-23 | Daimlerchrysler Ag | Two-stroke engine braking process for a supercharged internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3015663B1 (en) | 2018-11-07 |
| JP2016089825A (en) | 2016-05-23 |
| CN105569760A (en) | 2016-05-11 |
| JP6807150B2 (en) | 2021-01-06 |
| KR102390243B1 (en) | 2022-04-22 |
| EP3015663A1 (en) | 2016-05-04 |
| KR20160051607A (en) | 2016-05-11 |
| DK3015663T3 (en) | 2019-03-04 |
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