DE102008014249A1 - Process for the combustion gas exchange (purging) in a two-stroke internal combustion engine - Google Patents
Process for the combustion gas exchange (purging) in a two-stroke internal combustion engine Download PDFInfo
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- DE102008014249A1 DE102008014249A1 DE102008014249A DE102008014249A DE102008014249A1 DE 102008014249 A1 DE102008014249 A1 DE 102008014249A1 DE 102008014249 A DE102008014249 A DE 102008014249A DE 102008014249 A DE102008014249 A DE 102008014249A DE 102008014249 A1 DE102008014249 A1 DE 102008014249A1
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- Prior art keywords
- piston
- inlet
- gas exchange
- pressure level
- cylinder
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Classifications
-
- 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
-
- 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
Landscapes
- 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
Um ein Verfahren für den Verbrennungsgaswechsel (Spülung) in einer aufgeladenen Zweitakt-Brennkraftmaschine, bei der jedem Zylinder (1) mindestens ein im Zylinderkopf (10) angeordnetes Ein- und Auslassventil (3, 4) zugeordnet ist, bei dem ein Kolben (2) im Zylinder (1) Hubbewegungen zwischen einem oberen Totpunkt (OT) und einem unteren Totpunkt (UT) ausführt und gegenüber dem Zylinderkopf (10) einen Zylinderraum (11) mit veränderlichem Volumen einschließt, der Gaswechsel (Spülung) mittels der Ein- und Auslassventile (3, 4) gesteuert wird und mittels eines Aufladesystems das Einlassdruckniveau über das Auslassdruckniveau angehoben wird, anzugeben, das eine effektive Spülung ermöglicht und bei dem die bei der Verbrennung anfallende Energie möglichst effektiv genutzt wird, also der Wirkungsgrad verbessert wird, ist vorgesehen, dass der Gaswechsel (Spülung) in der oberen Hälfte der Hubbewegung des Kolbens von UT nach OT (9) endet.A method for the combustion gas exchange (purging) in a supercharged two-stroke internal combustion engine, in which each cylinder (1) at least one in the cylinder head (10) arranged inlet and outlet valve (3, 4) is assigned, in which a piston (2) in the cylinder (1) executes strokes between a top dead center (TDC) and a bottom dead center (UT) and relative to the cylinder head (10) includes a cylinder chamber (11) with variable volume, the gas exchange (flushing) by means of the inlet and outlet valves ( 3, 4) is controlled and by means of a charging system, the inlet pressure level is raised above the Ausdruckdruckniveau indicate that allows effective flushing and in which the energy produced during the combustion is used as effectively as possible, ie the efficiency is improved, it is provided that the Gas change (purge) in the upper half of the stroke movement of the piston from UT to OT (9) ends.
Description
Die Erfindung bezieht sich auf ein Verfahren für den Verbrennungsgaswechsel (Spülung) in einer Zweitakt-Brennkraftmaschine, bei der jedem Zylinder mindestens ein im Zylinderkopf angeordnetes Ein- und Auslassventil zugeordnet ist, ein Kolben im Zylinder Hubbewegungen zwischen einem oberen Totpunkt (OT) und einem unteren Totpunkt (UT) ausführt und gegenüber dem Zylinderkopf einen Zylinderraum mit veränderlichem Volumen einschließt, der Gaswechsel (Spülung) mittels der Ein- und Auslassventile gesteuert und mittels eines Aufladesystems das Einlassdruckniveau über das Auslassdruckniveau angehoben wird.The The invention relates to a method for the combustion gas exchange (Flushing) in a two-stroke internal combustion engine, in the each cylinder at least one arranged in the cylinder head Ein- and An exhaust valve is assigned to a piston in the cylinder lifting movements between top dead center (TDC) and bottom dead center (TDC) executes and opposite the cylinder head one Includes cylinder space of variable volume, the gas exchange (flushing) by means of the inlet and outlet valves controlled and by means of a charging system, the inlet pressure level over the outlet pressure level is raised.
Zweitakt-Brennkraftmaschinen weisen gegenüber den im allgemeinen üblichen Viertakt-Brennkraftmaschinen wegen der nur halb so großen Zahl der Arbeitstakte, beziehungsweise Hubbewegungen des Kolbens pro Takt einen wesentlich geringeren Reibleistungsanteil (bezogen auf die abgegebene Leistung) auf. Sie können deshalb in diesem Zusammenhang mit den Bestrebungen, den Kraftstoffverbrauch zu optimieren, eine sinnvolle und vorteilhafte Antriebsvariante darstellen.Two-stroke internal combustion engines have compared to the generally conventional four-stroke internal combustion engines because of the only half the number of power strokes, respectively Strokes of the piston per clock a much lower friction power (related to the delivered power). You can therefore in this connection with the aspirations, the fuel consumption to optimize, a meaningful and advantageous drive variant represent.
Es ist auch schon bekannt geworden, die bei üblichen Zweitaktbrennkraftmaschinen verwendeten Schlitzsteuerungen für den Ein- und Auslass durch Ventile zu ersetzen, so dass, der grundsätzliche Aufbau einer derartigen Zweitakt-Brennkraftmaschine nicht mehr wesentlich von demjenigen einer Viertakt-Brennkraftmaschine abweicht.It is also already known, the usual two-stroke internal combustion engines used slot controls for the inlet and outlet to replace with valves, so that, the fundamental Structure of such a two-stroke internal combustion engine no longer essential deviates from that of a four-stroke internal combustion engine.
Um bei den notwendigerweise sehr kurzen Ventilöffnungs- und Schließzeiten noch einen ausreichend guten Ladungswechsel und eine zufrieden stellende Spü lung zu erzielen, ist es aber in jedem Fall erforderlich, das Einlassdruckniveau mit Hilfe eines Aufladesystems über das Auslassdruckniveau anzuheben.Around at the necessarily very short valve opening and Closing times still a sufficiently good charge change and to achieve a satisfactory rinse, it is but in any case required, the inlet pressure level with the help of a supercharger system above the outlet pressure level.
Das Problem bei derartigen Zweitakt-Brennkraftmaschinen ist unter anderem auch das Erreichen einer wirkungsvollen Spülung des Arbeits- bzw. Zylinderraums, wenn das unter Druck einströmende Frischgas während der nur kurzen Überschneidungsperioden zwischen den Ein- und Auslassventilen das verbrannte Gas über die Auslassventile aus zu schieben versucht. Beim Spülvorgang soll also verbranntes Gas möglichst weitgehend aus dem Zylinder entfernt werden, zugleich ist man jedoch bemüht, die Frischgasverluste, d. h. einen Verlust an Spülgas äußerst gering zu halten.The Problem with such two-stroke internal combustion engines is among others also achieving effective flushing of the working or cylinder space, when the incoming fresh gas under pressure during only short overlap periods between the intake and exhaust valves the burnt gas over the exhaust valves tried to push out. During the flushing process So burnt gas should be as much as possible from the Cylinders are removed, but at the same time, however, efforts are made the fresh gas losses, d. H. a loss of purge gas extremely to keep low.
Beispielsweise
ist ein solcher Zweitaktverbrennungsmotor aus der
Um aber eine niedrige Schadstoffemission, einen niedrigen Kraftstoffverbrauch und auch ein akzeptables Leerlaufverhalten zu erzielen, ist eine gute Spülung des Zylinderraums, d. h. dass der Frischluftstrom vom Einlassventil den Abgasstrom effektiv über das Auslassventil aus dem Zylinderraum spülen kann, unbedingt erforderlich.Around but a low pollutant emission, a low fuel consumption and also to achieve an acceptable idling behavior is one good flushing of the cylinder space, d. H. that the fresh air flow from the inlet valve, the exhaust gas flow effectively via the outlet valve can flush out of the cylinder chamber, absolutely necessary.
Der Erfindung liegt dem gegenüber somit die Aufgabe zu Grunde, ein Verfahren zur Abführung der Verbrennungsgase aus dem Zylinder anzugeben, das eine effektive Spülung ermöglicht und bei dem die bei der Verbrennung anfallende Ener gie möglichst effektiv genutzt wird, also der Wirkungsgrad der gattungsgemäßen Zweitakt-Brennkraftmaschine effektiv verbessert wird.Of the Invention is therefore the object of the opposite, a method for removing the combustion gases from the Specify cylinder that allows effective flushing and in which the energy produced during combustion energy as possible is used effectively, so the efficiency of the generic Two-stroke internal combustion engine is effectively improved.
Die Lösung dieser Aufgabe erfolgt gemäß dem Kennzeichen des Patentanspruchs 1.The Solution of this task is carried out according to the Mark of the patent claim 1.
Bisher wurden wie oben beschrieben beim Zweitaktverfahren also der Verbrennungsgaswechsel ohne einer zusätzlichen Kurbelwellenumdrehung realisiert, in dem die Verbrennungsgase am Ende der Expansion und zu Beginn des Kompressionshubes ausgewechselt werden. Damit ist der Expansionstakt des Kolbens, also die Hubbewegung des Kolbens von OT nach UT recht kurz und die bei der Verbrennung auftretende Energie nur eingeschränkt nutzbar.So far were as described above in the two-stroke process so the combustion gas exchange realized without an additional crankshaft revolution, in which the combustion gases at the end of the expansion and at the beginning be replaced the compression stroke. This is the expansion stroke of the Piston, so the stroke movement of the piston from OT to UT quite short and the energy occurring during combustion is limited available.
Dadurch, dass beim erfindungsgemäßen Verfahren für den Verbrennungsgaswechsel (Spülung) im Gegensatz zum bisherigen Stand der Technik ausschließlich in der oberen Hälfte der Hubbewegung des Kolbens von UT nach OT (also im Kompressionstakt) endet, kann der Expansionstakt wesentlich länger gestaltet werden als der Kompressionstakt. Damit verbessert sich der Wirkungsgrad. Die Geometrie des Zylinderraums ist hinsichtlich eines effektiven Spülvorgangs wesentlich verbessert, d. h. die Spülqualität ist wegen der vereinfachten Geometrie deutlich verbessert, ohne dass hinsichtlich der Ausbildung des Frischluft- und Abgasstroms aufwendige Maßnahmen vorgenommen werden müssen.Thereby, that in the inventive method for the combustion gas exchange (flushing) in contrast to the previous one State of the art exclusively in the upper half the stroke of the piston from BDC to TDC (ie in the compression stroke) ends, the expansion stroke can be made much longer be considered the compression stroke. This improves the efficiency. The geometry of the cylinder space is in terms of an effective Rinsing process significantly improved, d. H. the rinsing quality is significantly improved because of the simplified geometry without that with regard to the formation of the fresh air and exhaust gas flow costly measures must be taken.
In bevorzugter Weise beginnt der Verbrennungsgaswechsel (Spülung) im Gegensatz zum bisherigen Stand der Technik ebenfalls in der oberen Hälfte der Hubbewegung des Kolbens von UT nach OT (also im Kompressionstakt), wobei in der weiterhin bevorzugten Ausführung der Zylinderraum während des Gaswechsels (Spülung) bezüglich der Kolbenachse breiter ist als hoch.In a preferred manner, the combustion gas exchange (flushing) begins in contrast to the prior art also in the upper half of the stroke movement of the piston from UT to OT (ie in the compression stroke), wherein in the further preferred embodiment of the cylinder chamber currency the gas exchange (flushing) is wider than high with respect to the piston axis.
Die Unteransprüche beinhalten zweckmäßige Weiterbildungen der Erfindung.The Subclaims include appropriate Further developments of the invention.
Die Erfindung wird nachstehend ohne Beschränkung des allgemeinen Erfindungsgedankens anhand eines Ausführungsbeispiels unter Bezugnahme auf die Zeichnung exemplarisch beschrieben.The Invention will hereinafter be understood without limitation of the general Invention idea using an embodiment below Reference to the drawing described by way of example.
Die
einzelnen Verfahrensschritte des erfindungsgemäßen
Gaswechsels (Spülung) in einer Zweitakt-Brennkraftmaschine
sind in der einzigen Figur mit der Detailnummerierung
Kennzeichnung
Um
nun zu erreichen, dass das über das Einlassventil
Dabei
ist es je nach Größe der Brennkraftmaschine möglich,
jeweils mehrere Ein- und Auslassventile
Mit
OT ist der obere Totpunkt des Kolbens
Um
die Erfindung besser zu verdeutlichen ist hier exemplarisch ein
Zweitaktmotor skizziert, bei dem ein Zylinder
Detail
Detail
Detail
Detail
Detail
Detail
All
diese Schritte, d. h. die spezielle Steuerung der Ein- und Auslassventile
Der
gesamte Gaswechsel (Spülung) findet beim angegebenen Ausführungsbeispiel
in einem Zylinderraum
Desweiteren
wird der Gaswechsel (Spülung) im oberen Drittel der Hubbewegung
In einem weiteren bevorzugten Ausführungsbeispiel der vorliegenden Erfindung wird mittels eines Regelkreises aus Sensoren und mindestens eines Stellgliedes das Auslassdruckniveau in Abhängigkeit des Einlassdruckniveaus geregelt.In a further preferred embodiment of the present invention Invention is by means of a control loop of sensors and at least of an actuator, the outlet pressure level as a function of Regulated inlet pressure levels.
Im
einfachen Fall verfügt die Brennkraftmaschine über
einen ausreichend bekannten Regelkreis, der mindestens jeweils einen
Sensor zum Erfassen des Druckniveaus vor dem Einlassventil
Bevorzugt wird das Verhältnis von Einlass- und Auslassdruckniveau konstant gehalten.Prefers becomes the ratio of inlet and outlet pressure levels kept constant.
Als
Stellglied kann eine Drosselklappe im Zustrom zum Einlassventil
Bevorzugt kann eine Lastregelung durch die Regelung des Auslassdruckniveaus vorgenommen werden. Für die Lastregelung gilt, dass bei halber Motorleistung die gleichen Druckverhältnisse wie bei Volllast gelten sollen. Als Stellglied zur Rege lung des Auslassdruckniveaus kann natürlich auch eine Drosselklappe im Abgastrakt verwendet werden.Prefers can be a load control by regulating the outlet pressure levels be made. For the load control applies that at half engine power the same pressure conditions as to apply at full load. As an actuator to regulate the outlet pressure level Of course, a throttle in the exhaust system can also be used become.
In
einem weiteren bevorzugten Ausführungsbeispiel kann eine
bezüglich des Zylinders
Beim
Gaswechsel (Spülung) verbleiben in etwa 40 Volumen-% des
Abgases im Zylinderraum
- 11
- Zylindercylinder
- 22
- Kolbenpiston
- 33
- Einlassventilintake valve
- 44
- Auslassventiloutlet valve
- 55
- Einspritzdüse, bzw. Zündvorrichtunginjector, or ignition device
- 66
- FrischluftstromFresh air flow
- 77
- Abgasstromexhaust gas flow
- 88th
- Hubbewegung des Kolbens von OT nach UTstroke movement of the piston from OT to UT
- 99
- Hubbewegung des Kolbens von UT nach OTstroke movement of the piston from BDC to TDC
- 1010
- Zylinderkopfcylinder head
- 1111
- Zylinderraumcylinder space
- OTOT
- oberer Todpunktupper dead center
- UTUT
- unterer Todpunktlower dead center
- AA
- Öffnen des Auslassventilsto open the exhaust valve
- BB
- Öffnen des Einlassventilto open the inlet valve
- CC
- Schließen des AuslassventilsShut down the exhaust valve
- DD
- Schließen des EinlassventilsShut down of the inlet valve
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 2701272 C2 [0006] DE 2701272 C2 [0006]
Claims (13)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008014249A DE102008014249A1 (en) | 2008-03-13 | 2008-03-13 | Process for the combustion gas exchange (purging) in a two-stroke internal combustion engine |
KR1020090006027A KR20090098667A (en) | 2008-03-13 | 2009-01-23 | Method for combustion gas exchange (scavenging) in two-stroke internal combustion engine |
FI20095214A FI20095214A (en) | 2008-03-13 | 2009-03-04 | A method for exchanging (flushing) combustion gases in a two-stroke internal combustion engine |
AT0037509A AT506447B1 (en) | 2008-03-13 | 2009-03-09 | METHOD FOR CHANGING COMBUSTION GAS (FLUSHING) IN A TWO-STROKE INTERNAL COMBUSTION ENGINE |
JP2009058162A JP2009222060A (en) | 2008-03-13 | 2009-03-11 | Exchanging (scavenging) method for combustion gas of two stroke engine |
CN200910129005A CN101532419A (en) | 2008-03-13 | 2009-03-13 | Method for combustion ventilation (scavenging) in two-stroke internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
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 |
---|---|
DE102008014249A1 true DE102008014249A1 (en) | 2009-09-24 |
Family
ID=40510215
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102008014249A Withdrawn DE102008014249A1 (en) | 2008-03-13 | 2008-03-13 | Process for the combustion gas exchange (purging) in a two-stroke internal combustion engine |
Country Status (6)
Country | Link |
---|---|
JP (1) | JP2009222060A (en) |
KR (1) | KR20090098667A (en) |
CN (1) | CN101532419A (en) |
AT (1) | AT506447B1 (en) |
DE (1) | DE102008014249A1 (en) |
FI (1) | FI20095214A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN111896067A (en) * | 2020-08-05 | 2020-11-06 | 中车青岛四方车辆研究所有限公司 | Air cylinder, volume measurement system and volume measurement method |
US11358461B2 (en) | 2018-09-11 | 2022-06-14 | Kawasaki Jukogyo Kabushiki Kaisha | Electricity generation system and propulsion apparatus including the same |
EP4253738A1 (en) | 2022-03-31 | 2023-10-04 | Martin Buchberger | Method for operating a cyclically driven piston motor |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
Citations (6)
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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 |
DE2543120C2 (en) * | 1975-04-24 | 1982-12-30 | L'Etat Français représenté par le Délégué Général pour l'Armement, 75997 Paris | Internal combustion engine charged by means of an exhaust gas turbocharger |
DE2701272C2 (en) | 1976-01-15 | 1984-03-22 | Jean Neuilly-Sur-Seine Melchior | 2-stroke combustion engine |
WO1985002655A1 (en) * | 1983-12-13 | 1985-06-20 | James Lenaham | Internal combustion engine |
US4995348A (en) * | 1985-11-06 | 1991-02-26 | Melchior Jean F | Two-stroke internal combustion engines and process for operating said engines |
WO1998029648A1 (en) * | 1996-12-31 | 1998-07-09 | Douglas Ayres | Internal combustion engines utilizing variable compression complete unit charge air/fuel injection or transference |
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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 |
-
2008
- 2008-03-13 DE DE102008014249A patent/DE102008014249A1/en not_active Withdrawn
-
2009
- 2009-01-23 KR KR1020090006027A patent/KR20090098667A/en not_active Application Discontinuation
- 2009-03-04 FI FI20095214A patent/FI20095214A/en not_active IP Right Cessation
- 2009-03-09 AT AT0037509A patent/AT506447B1/en not_active IP Right Cessation
- 2009-03-11 JP JP2009058162A patent/JP2009222060A/en active Pending
- 2009-03-13 CN CN200910129005A patent/CN101532419A/en active Pending
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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 |
DE2543120C2 (en) * | 1975-04-24 | 1982-12-30 | L'Etat Français représenté par le Délégué Général pour l'Armement, 75997 Paris | Internal combustion engine charged by means of an exhaust gas turbocharger |
DE2701272C2 (en) | 1976-01-15 | 1984-03-22 | Jean Neuilly-Sur-Seine Melchior | 2-stroke combustion engine |
WO1985002655A1 (en) * | 1983-12-13 | 1985-06-20 | James Lenaham | Internal combustion engine |
US4995348A (en) * | 1985-11-06 | 1991-02-26 | Melchior Jean F | Two-stroke internal combustion engines and process for operating said engines |
WO1998029648A1 (en) * | 1996-12-31 | 1998-07-09 | Douglas Ayres | Internal combustion engines utilizing variable compression complete unit charge air/fuel injection or transference |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11358461B2 (en) | 2018-09-11 | 2022-06-14 | Kawasaki Jukogyo Kabushiki Kaisha | Electricity generation system and propulsion apparatus including the same |
CN111896067A (en) * | 2020-08-05 | 2020-11-06 | 中车青岛四方车辆研究所有限公司 | Air cylinder, volume measurement system and volume measurement method |
EP4253738A1 (en) | 2022-03-31 | 2023-10-04 | Martin Buchberger | Method for operating a cyclically driven piston motor |
WO2023187057A1 (en) | 2022-03-31 | 2023-10-05 | Martin Buchberger | Method for operating a cyclically driven piston engine |
Also Published As
Publication number | Publication date |
---|---|
KR20090098667A (en) | 2009-09-17 |
FI20095214A (en) | 2009-09-14 |
AT506447B1 (en) | 2010-08-15 |
CN101532419A (en) | 2009-09-16 |
FI20095214A0 (en) | 2009-03-04 |
AT506447A1 (en) | 2009-09-15 |
JP2009222060A (en) | 2009-10-01 |
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