CN101532419A - Method for combustion ventilation (scavenging) in two-stroke internal combustion engine - Google Patents

Method for combustion ventilation (scavenging) in two-stroke internal combustion engine Download PDF

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Publication number
CN101532419A
CN101532419A CN200910129005A CN200910129005A CN101532419A CN 101532419 A CN101532419 A CN 101532419A CN 200910129005 A CN200910129005 A CN 200910129005A CN 200910129005 A CN200910129005 A CN 200910129005A CN 101532419 A CN101532419 A CN 101532419A
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CN
China
Prior art keywords
piston
scavenging
ventilation
stroke movement
pressure level
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN200910129005A
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Chinese (zh)
Inventor
A·斯塔德勒
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MAN Energy Solutions SE
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MAN Diesel SE
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Publication date
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Publication of CN101532419A publication Critical patent/CN101532419A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B25/00—Engines characterised by using fresh charge for scavenging cylinders
    • F02B25/20—Means for reducing the mixing of charge and combustion residues or for preventing escape of fresh charge through outlet ports not provided for in, or of interest apart from, subgroups F02B25/02 - F02B25/18
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B25/00—Engines characterised by using fresh charge for scavenging cylinders
    • F02B25/14—Engines characterised by using fresh charge for scavenging cylinders using reverse-flow scavenging, e.g. with both outlet and inlet ports arranged near bottom of piston stroke
    • F02B25/145—Engines characterised by using fresh charge for scavenging cylinders using reverse-flow scavenging, e.g. with both outlet and inlet ports arranged near bottom of piston stroke with intake and exhaust valves exclusively in the cylinder head
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B25/00—Engines characterised by using fresh charge for scavenging cylinders
    • F02B25/20—Means for reducing the mixing of charge and combustion residues or for preventing escape of fresh charge through outlet ports not provided for in, or of interest apart from, subgroups F02B25/02 - F02B25/18
    • F02B25/24—Inlet or outlet openings being timed asymmetrically relative to bottom dead-centre
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D15/00—Varying compression ratio
    • F02D15/02—Varying compression ratio by alteration or displacement of piston stroke
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
    • F02D41/1448—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an exhaust gas pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B33/00—Engines characterised by provision of pumps for charging or scavenging
    • F02B33/32—Engines with pumps other than of reciprocating-piston type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/12—Control of the pumps
    • F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/12—Control of the pumps
    • F02B37/22—Control of the pumps by varying cross-section of exhaust passages or air passages, e.g. by throttling turbine inlets or outlets or by varying effective number of guide conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/04—Engine intake system parameters
    • F02D2200/0406—Intake manifold pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/0002—Controlling intake air
    • F02D41/0007—Controlling intake air for control of turbo-charged or super-charged engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/04—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning exhaust conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/01—Internal exhaust gas recirculation, i.e. wherein the residual exhaust gases are trapped in the cylinder or pushed back from the intake or the exhaust manifold into the combustion chamber without the use of additional passages

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

The invention relates to a method for combustion ventilation (scavenging) in a two-stroke internal combustion engine, in which at least one inlet valve (3) and one outlet valve (4) are arranged in a cylinder head (10) for each cylinder (1), wherein the piston (2) performs a stroke movement in the cylinder (1) between a top dead center (OT) and a bottom dead center (UT) and delimits a cylinder chamber (11) having a variable volume relative to the cylinder head (10), the scavenging is controlled by means of an inlet valve (3) and an outlet valve (4) and the inlet pressure level is increased to a level higher than the exhaust pressure level by means of a charging system, the method enables efficient scavenging and the energy generated in the combustion is used as efficiently as possible, i.e. the efficiency is improved, it is suggested that the scavenging ends in the upper half of the stroke movement (9) of the piston from UT to OT.

Description

The method of burning ventilation (scavenging) in the two stroke IC engine
Technical field
The present invention relates to a kind of method that is used for two stroke IC engine burning ventilation (scavenging), in this internal-combustion engine each cylinder arrangement at least one be arranged in suction valve and outlet valve in the cylinder head, piston is implemented stroke movement and is had the cylinder chamber of variable volume with respect to the cylinder head restriction between upper dead center (OT) and lower dead centre (UT) in cylinder, this ventilation (scavenging) is by means of suction valve and outlet valve is controlled and by means of pressurization system the suction pressure level is brought up to and to be higher than the exhaust pressure level.
Background technique
Two stroke IC engine is owing to the stroke movement of piston in working stroke number or the every circulation just has low-down friction horsepower ratio (for the power that sends) with respect to half of general general quartastroke engine.Therefore they can realize the flexible program of significant and favourable drive unit in the effort of optimizing fuel consume thus.
Also known is, the seam formula distribution (valveless distribution) of the intake and exhaust of using in common two stroke IC engine is replaced by air valve, thereby the basic structure of this two stroke IC engine no longer includes the different of essence with the structure of quartastroke engine.
But,, be higher than the exhaust pressure level in any case need the suction pressure level be brought up to by means of pressurization system in order still to reach enough good ventilation and satisfied scavenging at the air valve opening and closing time durations that must lack very much.
If the fresh combustion gases that flows under pressure into attempted the gas of burning is discharged by outlet valve during the very of short duration overlapping cycle between suction valve and the outlet valve, it is problematic in that how to realize the scavenging in full force and effect of working room or cylinder chamber except others in this two stroke IC engine.That is will remove away from cylinder on maximum as far as possible degree at spent gas during the scavenging process, but the fresh combustion gases that will make great efforts simultaneously to keep minimum is lost the i.e. loss of scavenging gas.
For example DE2701272C2 discloses a this two stroke IC engine, there in the ventilation of Miao Shuing, combustion gas when the expansion stroke of piston finishes and the compression stroke of piston be replaced when beginning.Should realize the scavenging completely of combustion gas although it is so, but owing to whether this requirement during foregoing ventilation of the reason on the geometrical construction of cylinder chamber can be satisfied, especially at the same time to make under the situation of scavenging gas loss minimum, still exist and suspect.
In order to realize low hazardous emission, low fuel consumption and acceptable idle capability, to the good scavenging of cylinder chamber, that is fresh air stream can clean out cylinder chamber through outlet valve with exhaust flow effectively from suction valve, is absolute demand.
Summary of the invention
Therefore correspondingly, task of the present invention is to propose a kind of method that is used for combustion gas are discharged cylinder, this method can realize effective scavenging and effectively utilize the energy that produces when burning as far as possible, therefore improve the efficient of such two stroke IC engine effectively.
The solution of this task realizes according to the feature of claim 1.
Hereto, be under a circle crank up that does not add, having realized the burning ventilation as mentioned above in the two-stroke method, combustion gas are replaced when expansion finishes and in compression stroke the zero hour in this burning ventilation.Therefore the expansion stroke of piston, that is piston is very short and very limited to the utilization of the energy that produces burning from OT to the stroke movement of UT.
In method according to be used for burning ventilation and/or scavenging of the present invention, different with current prior art, burning ventilation only finishes from UT (promptly in compression stroke) to upper half part of the stroke movement of OT at piston, and expansion stroke can design to such an extent that be longer than compression stroke widely thus.Efficient improves thus.The geometrical construction of cylinder chamber is improved widely for effective scavenging process, that is obviously improves owing to geometrical construction simply makes the scavenging quality, and needn't take expensive measure at the design aspect of fresh air stream and exhaust flow.
Different with current prior art, burning ventilation (scavenging) in an advantageous manner also at piston from UT (promptly in compression stroke) beginning to upper half part of the stroke movement of OT, wherein in preferred embodiments cylinder chamber during ventilation (scavenging) with respect to the piston axis width greater than height.
Dependent claims comprises favourable expansion scheme of the present invention.
Below under the situation that total inventive concept is not construed as limiting, the present invention is exemplarily described according to embodiment and with reference to accompanying drawing.
Description of drawings
Fig. 1: in only view 1, utilize details numbering 1 one after the other from left to right to show to 5 according to each method step of the ventilation (scavenging) in two stroke IC engine of the present invention.
Embodiment
In accompanying drawing 1, label 2 expressions are usually by the piston of rod hinge connection on bent axle, and this piston is slided up and down to guide in cylinder 1 and surrounds a cylinder chamber 11 that can change volume with respect to cylinder head 10.In this cylinder chamber 11, feed by the intake duct of suction valve 3 controls and the air outlet flue of controlling by outlet valve 4. Air valve 3 and 4 is in a manner known way by camshaft control, but different these camshafts with the camshaft of quartastroke engine are with the rotating speed rotation identical with bent axle.
Now in order to realize making the fresh combustion gases that flows into by suction valve 3 or fresh air flows through as far as possible well and do not mix under the situation at the gas of combustion with the working stroke of before having carried out (expansion stroke) (details 1) with going too far this waste gas is as far as possible fully driven away from cylinder chamber 11 when outlet valve 4 is opened, must the special measure of employing.A kind of for this reason measure is to improve suction pressure by means of the pressurization system that does not have herein further to show, pressurization system can be with exhaust-gas turbocharger or with the form design of compressor.
In the case, can arrange a plurality of suction valves 3 and outlet valve 4 respectively according to the difference of the size of internal-combustion engine in cylinder head 10, they form corresponding large-area suction port and relief opening.
Represent the upper dead center of piston 2 with OT, represent lower dead centre with UT.
For the present invention is described better, the sketch of the two stroke engine that exemplarily drawn herein, wherein cylinder 1 allows the piston stroke of 44cm and the piston diameter of 32cm.
Details 1 among the figure illustrates expansion stroke (arrow 8) or so-called expansion stroke, and wherein piston 2 keeps closing to UT motion and suction valve 3 and outlet valve 4 from OT.
Details 2 is illustrated in the piston 2 at UT place, but arrow 9 express piston 2 from UT to the stroke movement of OT, wherein outlet valve 4 is opened (A) during stroke movement 9, and suction valve 3 still keeps cutting out.Discharging gas expands at this moment up near exhaust back-pressure.
The end face that details 3 is illustrated in the piston 2 of restriction cylinder chamber 11 during the stroke movement 9 is on the position, and this position is positioned at 9.2cm before the UT, that is has the height of 9.2cm in this upper cylinder chamber, position 11.On this position of piston 2, suction valve 3 is opened (B).That is to say, is about 25% o'clock from UT to the about remaining stroke movement 9 of OT at piston 2, this is in this good being similar to down, if supposition has 180 ° of crank angles from UT to the stroke movement 9 (with the same to the stroke movement 8 of UT from OT) of OT, then, be opened under outlet valve 4 situations that suction valve 3 has been opened at the same time corresponding to about 54 ° of crank angles before the OT.The fresh air or the fresh combustion gases that enter under pressure are extruded waste gas, and fresh air and waste gas carry out partially mixed and part fresh air or fresh combustion gases spills by outlet valve during this period.7 fresh air stream 6 and exhaust flow 7 form U-shaped stream at the width of cylinder chamber 11 from suction valve 6 to outlet valve.
Details 4 shows piston 2 on a position during the motion 9, wherein the end face of piston 2 is positioned at the preceding approximately 7.2cm of UT, that is has the height of 7.2cm in this place cylinder chamber 11, wherein outlet valve 4 is closed (C) on this position of piston 2, that is to say, is about 16% o'clock from UT to the about remaining stroke movement of OT at piston 2, this is about 48 ° of crank angles before better approximate following statement of doing with the front is similarly corresponding to OT, and outlet valve 4 also is at the same time under suction valve 3 situations of opening and is closed.Being in fresh air under the boost pressure of raising thus continues to flow into and is full of cylinder chamber 11.By also being in the suction valve of opening 3, precompressed combustion gas is continued to clamp-on in the cylinder, thereby cylinder has experienced strong supercharging.
Details 5 illustrates piston 2 and is being in during the stroke movement 9 on the position, wherein the end face of piston 2 is positioned at the preceding approximately 4.2cm of UT, that is the height of cylinder chamber 11 is about 4.2cm, wherein this position upper inlet valve 3 at piston 2 also is (D) that closes, that is to say, is about 10% o'clock from UT to the about remaining stroke movement of OT at piston 2, and this and front are done and stated similarly corresponding to about 36 ° of crank angles before the OT, and suction valve 3 cuts out equally once more.
Details 1 illustrates the beginning of the reality of compression stage again, and promptly suction valve 3 is near cutting out before the OT, and 2 in piston continues compressed gas, up to lighting a fire at UT place, and this igniting or by spark plug or by spraying into diesel oil enforcement.Details 1 illustrates leftmost like that from the working stroke 8 of OT to UT with figure thus again, and wherein suction valve 3 and outlet valve 4 keep closing during stroke movement 8.
All these steps, be the special control of suction valve 3 and outlet valve 4, all contribute to producing fresh air stream, this fresh air stream can be at short notice, that is in the crank angle range that provides for scavenging process the waste gas that exists in the cylinder 11 is discharged in the air outlet flue by exhaust flow 7 by the outlet valve of opening 4.
Whole ventilation (scavenging) is carried out in cylinder chamber 11 in described embodiment, the width of this cylinder is always 32cm and its height moves between 9.2cm and 7.2cm, promptly cylinder chamber 11 the ventilation (scavenging) during for piston axis width always greater than the height.
In addition, whole ventilation (scavenging) at piston 2 from UT beginning and finishing three/part on the stroke movement of OT.
In another preferred embodiment of the present invention, by means of the regulating loop that constitutes by sensor and at least one executive component according to suction pressure horizontal adjustment exhaust pressure level.
Internal-combustion engine has abundant disclosed regulating loop under simple situation, it comprises that each one is used to survey suction valve 3 stress level before and the sensor of the stress level after the outlet valve 4 at least, wherein these sensors are communicated with executive component through characteristic curve comparison and regulating loop, and this executive component can be activated by adjustment process in known manner.Pressure is adjusted to certain size thus in an embodiment, so that scavenging is kept constant.
Preferably the ratio with suction pressure level and exhaust pressure level keeps constant.
Can in the inlet flow of suction valve 3, use throttle valve as executive component, be used to regulate the suction pressure level, perhaps use the wastegate (Wastegate) of changeable turbine geometrical construction or pressurization system, be used to regulate the exhaust pressure level.
Preferably, can implement Load Regulation by regulating the exhaust pressure level.Load Regulation is included in pressure ratio under half the engine power should satisfy identical with under full load.Naturally also can use throttle valve as the executive component that is used for regulating the exhaust pressure level at waste gas system.
In another preferred embodiment, can on such degree, influence the exhaust gas recirculation (AGR) that for cylinder 1, belongs to the inside of internal-combustion engine by foundation suction pressure horizontal adjustment exhaust gas pressure level, make AGR can be used to Load Regulation or be used for preheated burning gas, thereby the waste gas of heat just can be stayed in the cylinder chamber 11 with clear and definite purpose according to the exhaust pressure level that be conditioned.
The waste gas of about 40% percent volume to volume is stayed in the cylinder chamber 11 during ventilation (scavenging), and promptly the exhaust flow 7 that comes out by 6 cleanings of fresh air stream comprises about 40% percent volume to volume of waste gas volume.Aspect engine power, can regulate thus and influence inner AGR by stress level.Canonical parameter is an exhaust gas pressure and the ratio of fresh combustion gases pressure herein.Keep low scavenging loss thus.
1 cylinder
2 pistons
3 suction valves
4 outlet valves
5 nozzles or ignition mechanism
6 fresh airs stream
7 exhaust flows
8 pistons are from the stroke movement of OT to UT
9 pistons are from the stroke movement of UT to OT
10 cylinder heads
11 cylinder chamber
The OT upper dead center
The UT lower dead centre
The A outlet valve is opened
The B INO
The C exhaust valve closure
The D suction valve cuts out

Claims (13)

1. be used for method in supercharging two stroke IC engine burning ventilation (scavenging), each cylinder (1) disposes at least one and is arranged in suction valve (3) and outlet valve (4) in the cylinder head (10) in this internal-combustion engine, wherein piston (2) is implemented stroke movement and is had the cylinder chamber (11) of variable volume with respect to cylinder head (10) restriction between upper dead center (OT) and lower dead centre (UT) in cylinder (1), this ventilation (scavenging) is by means of suction valve (3) and outlet valve (4) is controlled and by means of pressurization system the suction pressure level is brought up to and to be higher than the exhaust pressure level, it is characterized in that this ventilation (scavenging) finishes from UT at piston to upper half part of the stroke movement (9) of OT.
2. in accordance with the method for claim 1, it is characterized in that this ventilation (scavenging) begins from UT at piston to upper half part of the stroke movement (9) of OT.
3. in accordance with the method for claim 1, it is characterized in that this ventilation (scavenging) finishes from UT at piston to the last three/part of the stroke movement (9) of OT.
4. in accordance with the method for claim 3, it is characterized in that this ventilation (scavenging) begins from UT at piston to the last three/part of the stroke movement (9) of OT.
5. according to the described method of claim 1 to 4, it is characterized in that, cylinder chamber (11) during ventilation (scavenging) with respect to the width of piston axis greater than height.
6. in accordance with the method for claim 1, it is characterized in that, is about 25% o'clock from UT to the roughly remaining stroke movement (9) of OT at piston (2), be opened under outlet valve (4) situation that suction valve (3) has been opened at the same time, is about 16% o'clock from UT to the roughly remaining stroke movement (9) of OT at piston (2), outlet valve (4) also is at the same time under suction valve (3) situation of opening and is closed, with be about 10% o'clock from UT to the roughly remaining stroke movement (9) of OT at piston (2), suction valve (3) also is closed again and suction valve (3) and outlet valve (4) keep closing from OT during the stroke movement (8) of UT at piston (2).
7. according to described method one of in the aforementioned claim, it is characterized in that, by means of the regulating loop that constitutes by sensor and executive component according to suction pressure horizontal adjustment exhaust pressure level.
8. in accordance with the method for claim 7, it is characterized in that, the ratio maintenance of suction valve and exhaust pressure level is constant
9. according to claim 7 or 8 described methods, it is characterized in that, in the inlet flow of suction valve (3), use throttle valve as executive component.
10. according to claim 7 or 8 described methods, it is characterized in that, implement Load Regulation by regulating the exhaust pressure level.
11. according to the described method of claim 7,8 or 10, it is characterized in that, type of service be the changeable turbine geometrical construction of pressurization system of turbosupercharger or wastegate as executive component, be used to regulate the exhaust pressure level.
12., it is characterized in that according to the described method of claim 7,8 or 10, in waste gas system, use throttle valve as executive component, be used to regulate the exhaust pressure level.
13. according to the described method of claim 7 to 12, it is characterized in that, the exhaust gas recirculation (AGR) of influence inside for cylinder (1) on such degree makes this inner AGR can be used to Load Regulation or is used for preheated burning gas by foundation suction pressure horizontal adjustment exhaust gas pressure level.
CN200910129005A 2008-03-13 2009-03-13 Method for combustion ventilation (scavenging) in two-stroke internal combustion engine Pending CN101532419A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008014249.2 2008-03-13
DE102008014249A DE102008014249A1 (en) 2008-03-13 2008-03-13 Process for the combustion gas exchange (purging) in a two-stroke internal combustion engine

Publications (1)

Publication Number Publication Date
CN101532419A true CN101532419A (en) 2009-09-16

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KR (1) KR20090098667A (en)
CN (1) CN101532419A (en)
AT (1) AT506447B1 (en)
DE (1) DE102008014249A1 (en)
FI (1) FI20095214A (en)

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CN102392734B (en) * 2011-10-21 2013-09-11 李永红 Method for controlling motion of cylinder piston of piston engine and device for implementing method
JP2020041481A (en) 2018-09-11 2020-03-19 川崎重工業株式会社 Power generation system and propulsion device with the same
CN111896067B (en) * 2020-08-05 2022-04-12 中车青岛四方车辆研究所有限公司 Air cylinder, volume measurement system and volume measurement method
EP4253738B1 (en) 2022-03-31 2024-04-24 Martin Buchberger Method for operating a cyclically driven piston motor

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DE320397C (en) * 1914-01-20 1920-04-16 Louis Renault Two-stroke internal combustion engine with a pump cylinder arranged parallel to the combustion cylinder without harmful space
FR2308792A2 (en) * 1975-04-24 1976-11-19 France Etat IMPROVEMENTS TO INSTALLATIONS WITH SUPERCHARGED INTERNAL COMBUSTION ENGINE, ESPECIALLY WITH SUPERCHARGED DIESEL ENGINE
FR2338385A1 (en) 1976-01-15 1977-08-12 Melchior Jean TWO STROKE INTERNAL COMBUSTION ENGINE IMPROVEMENTS
WO1985002655A1 (en) * 1983-12-13 1985-06-20 James Lenaham Internal combustion engine
FR2589518B1 (en) * 1985-11-06 1987-12-24 Melchior Jean IMPROVEMENTS ON TWO-STROKE INTERNAL COMBUSTION ENGINES AND METHOD OF IMPLEMENTING
JPH086586B2 (en) * 1987-02-16 1996-01-24 トヨタ自動車株式会社 2-cycle internal combustion engine
JPH0619807Y2 (en) * 1987-04-24 1994-05-25 マツダ株式会社 Engine scavenger
JP3486912B2 (en) * 1992-12-14 2004-01-13 マツダ株式会社 Engine scavenging device
CA2194196A1 (en) * 1996-12-31 1998-06-30 Douglas Ayres Internal combustion engines utilizing complete unit charge air/fuel injection

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AT506447A1 (en) 2009-09-15
AT506447B1 (en) 2010-08-15
FI20095214A (en) 2009-09-14
FI20095214A0 (en) 2009-03-04
JP2009222060A (en) 2009-10-01
DE102008014249A1 (en) 2009-09-24
KR20090098667A (en) 2009-09-17

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