EP2449227B1 - Inline dual piston engine - Google Patents

Inline dual piston engine Download PDF

Info

Publication number
EP2449227B1
EP2449227B1 EP10740133.3A EP10740133A EP2449227B1 EP 2449227 B1 EP2449227 B1 EP 2449227B1 EP 10740133 A EP10740133 A EP 10740133A EP 2449227 B1 EP2449227 B1 EP 2449227B1
Authority
EP
European Patent Office
Prior art keywords
piston
combustion chamber
dual
piston engine
opening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP10740133.3A
Other languages
German (de)
French (fr)
Other versions
EP2449227A2 (en
Inventor
Andreas Ross
Helge Goldenbaum
Jan Schoke
Dirk Tschapke
Arno Pohl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fachhochschule Luebeck
Original Assignee
Fachhochschule Luebeck
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fachhochschule Luebeck filed Critical Fachhochschule Luebeck
Publication of EP2449227A2 publication Critical patent/EP2449227A2/en
Application granted granted Critical
Publication of EP2449227B1 publication Critical patent/EP2449227B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • F02B75/00—Other engines
    • F02B75/28—Engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders
    • F02B75/30—Engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders with one working piston sliding inside another
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B7/00—Machines or engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders
    • F01B7/20—Machines or engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders with two or more pistons reciprocating one within another, e.g. one piston forming cylinder of the other

Definitions

  • the invention relates to a four-stroke internal combustion engine, designed as a double-piston engine according to the inline principle, in which move in a working cylinder two nested pistons.
  • the publication DE 27 09 939 describes a double-piston engine with two pistons sliding into one another, in which the pressure in the compression chamber, the piston moves in opposite directions in the working cycle, but the torque acts in the same direction on the crankshaft.
  • the two pistons of the double piston engine thus move in synchronism in opposite directions.
  • the object of the invention is to provide an efficient internal combustion engine with a particularly simple and efficient construction.
  • the invention is based on the idea of exploiting the residual pressure, as it can be represented in a p-V diagram, by making available a larger displacement volume during the power stroke.
  • the entire working piston consists of two nested pistons, one (outer) piston 1 and the other (inner) piston 3.
  • the inner, small piston 3 sucks through the opening in the outer piston 1, the fuel-air mixture, while the outer piston 1 remains at top dead center.
  • the compaction, Fig. 1b . is also done by the small piston 3.
  • Fig. 1c the upper piston 1 is unlocked by the preferably ring-shaped locking element 2, so that the piston pair 1, 3 can be used with the entire, so enlarged piston area for converting pressure to kinetic energy.
  • the outer piston 1 is lifted by the inner piston 3 back to its original starting position, so that the locking element 2 preferably ends from a recess 6 provided on the outer piston.
  • the entire piston surface can be adjusted in this device so that the residual pressure when opening the exhaust valve can be kept much lower than the known power stroke of a four-stroke gasoline engine.
  • simulation method according to the model of the Gleichraumvones can be shown that the device can be optimized so far that when opening the exhaust valve, the residual pressure in the cylinder chamber corresponds to the ambient pressure, which increases the energy yield of the cycle.
  • the energy gain is in Fig. 2 , shown in Chart Area 8, yielding efficiency improvements of 0.14 for comparative calculations with a standard reciprocating engine.
  • the power transmission takes place with known means such as connecting rod 4, crank 5 and crank pin. 7
  • the simulation model is based on the consideration that the sum of the relative movements does not increase. It consists either between the inner piston 3 and the outer bulb 1, or between the outer bulb 1 and the engine cylinder. This inevitably results in the advantage that due to the distributed movements, the wear is divided between different parts.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Description

Die Erfindung betrifft einen Viertakt-Verbrennungskraftmotor, ausgeführt als Doppelkolbenmotor nach dem Inline-Prinzip, bei dem sich in einem Arbeitszylinder zwei ineinander gleitende Kolben bewegen.The invention relates to a four-stroke internal combustion engine, designed as a double-piston engine according to the inline principle, in which move in a working cylinder two nested pistons.

Verbrennungskraftmaschinen sind immer noch Forschungs- und Entwicklungsgegenstand trotz ihrer langen Bestandszeit und weitestgehend ausgereizten Konstruktionen.Internal combustion engines are still research and development subject despite their long inventory life and largely exhausted constructions.

Im Funktionsablauf des herkömmlichen Viertakt-Motors wird der Restdruck beim Arbeitstakt nicht ausgenutzt, sondern geht, auch bei sehr aufwändig gestalteten Abgassystemen über dieses verloren. Dieses Problem besteht nicht nur bei Motoren älterer Bauart, sondern ist auch bei technologisch hochentwickelten Verbrennungskraftmaschinen präsent. Die physikalischen Zusammenhänge sind im sogenannten p-V-Diagramm ersichtlich - siehe Fig. 2 - das auch den Stand der Technik für thermische Kreisprozesse repräsentiert.In the functional sequence of the conventional four-stroke engine, the residual pressure is not utilized during the power stroke, but is lost even in the case of very complex exhaust systems. This problem exists not only with older engines, but is also present in technologically advanced internal combustion engines. The physical relationships can be seen in the so-called pV diagram - see Fig. 2 - which also represents the state of the art for thermal cycle processes.

Bei einem Viertakt-Verbrennungsmotor (Hubkolbenmotor) arbeitet der Kreisprozess im bekannten Viererrhythmus "Ansaugen", "Verdichten", "Arbeiten" und "Ausstoßen". Bedingt durch die konstante Oberfläche des Arbeitskolbens und das erforderliche Öffnen des Auslassventils vor dem unteren Totpunkt des Kolbenhubes im Arbeitstakt verlassen noch unter Druck stehende Arbeitsgase ungenutzt für die Drehmomenterzeugung den Zylinderraum. Einen Ausweg, dieses zu umgehen, bilden verschiedene als Turbolader bekannte Verfahren.In a four-stroke internal combustion engine (reciprocating engine), the cycle process operates in the familiar four-beat rhythm of "intake", "compression", "work" and "ejection". Due to the constant surface of the working piston and the required opening of the exhaust valve before the bottom dead center of the piston stroke in the power stroke leaving pressurized working gases unused for the generation of torque, the cylinder chamber. A way around this, form various known as turbocharger methods.

Zum Stand der Technik wird die Offenlegungsschrift DE 40 06 012 A1 zur Ausnutzung des Restdruckvolumens genannt, die durch Gegenkolben eine weitestgehende Verdichtungskonstanz mit anderen positiven Nebeneffekten erreicht, indem zwei Kolben mit unterschiedlichem Kolbendurchmesser im gleichen Verbrennungsraum mit jeweils einem eigenen Kurbelantrieb arbeiten und die durch ein Getriebe miteinander verbunden sind.The prior art is the published patent application DE 40 06 012 A1 called for the utilization of the residual pressure volume, which achieved by counter-piston a largely constant compression with other positive side effects by two pistons with different piston diameter in the same combustion chamber, each with its own crank drive and are connected by a gear.

Die Offenlegungsschrift DE 27 09 939 beschreibt einen Doppelkolbenmotor mit zwei ineinander gleitende Kolben, bei dem im Arbeitstakt der Druck im Verdichtungsraum die Kolben gegenläufig bewegt, das Drehmoment aber in gleicher Richtung auf die Kurbelwelle wirkt. Die beiden Kolben des Doppelkolbenmotors bewegen sich also streng synchron gegenläufig.The publication DE 27 09 939 describes a double-piston engine with two pistons sliding into one another, in which the pressure in the compression chamber, the piston moves in opposite directions in the working cycle, but the torque acts in the same direction on the crankshaft. The two pistons of the double piston engine thus move in synchronism in opposite directions.

Gemeinsam nachteilig an beiden Offenbarungen ist der hohe konstruktive mechanische Aufwand für eine bessere Nutzung des Arbeitsvolumens durch zusätzliche Kurbelwellen, Exzenter und Laufbuchsen.A common disadvantage of both disclosures is the high design mechanical effort for a better use of the working volume by additional crankshafts, eccentrics and liners.

Aufgabe der Erfindung ist es, einen effizienten Verbrennungsmotor mit besonders einfachem und effizientem Aufbau zu schaffen.The object of the invention is to provide an efficient internal combustion engine with a particularly simple and efficient construction.

Die Aufgabe wird gelöst durch den Verbrennungsmotor mit den Merkmalen von Anspruch 1. Die Unteransprüche geben vorteilhafte konstruktive Ausgestaltungen der Erfindung wieder.The object is achieved by the internal combustion engine with the features of claim 1. The dependent claims give advantageous structural embodiments of the invention again.

Der Erfindung liegt die Idee zugrunde, den Restdruck, so wie er in einem p-V-Diagramm dargestellt werden kann, auszunutzen, indem man ein größeres Hubvolumen während des Arbeitstaktes zur Verfügung stellt.The invention is based on the idea of exploiting the residual pressure, as it can be represented in a p-V diagram, by making available a larger displacement volume during the power stroke.

Die Erfindung wird anhand der beigefügten Zeichnungen dargestellt. Dabei zeigt:

Fig. 1
einen schematischen Schnitt durch den Doppelkolben während der vier Funktionstakte,
Fig. 2
das p-V-Diagramm eines typischen Ottomotors mit Restvolumenanteil nach dem Stand der Technik.
The invention will be illustrated with reference to the accompanying drawings. Showing:
Fig. 1
a schematic section through the double piston during the four functional cycles,
Fig. 2
the pV diagram of a typical gasoline engine with residual volume fraction according to the prior art.

Der gesamte Arbeitskolben besteht aus zwei ineinander liegenden Kolben, dem einen (äußeren) Kolben 1 und dem andere (inneren) Kolben 3. Im Ansaugtakt, Fig. 1a, saugt der innere, kleine Kolben 3 durch die Öffnung im äußeren Kolben 1 das Kraftstoff-Luftgemisch an, während der äußere Kolben 1 im oberen Totpunkt verharrt. Ein solcher Kolben ist auch beschrieben in der Patentschrift US-A-2008/0245333 . Die Verdichtung, Fig. 1b, erfolgt ebenfalls durch den kleinen Kolben 3. Beim Arbeitstakt, Fig. 1c, wird der obere Kolben 1 durch das bevorzugt ringförmig ausgebildete Arretierungselement 2 entriegelt, sodass das Kolbenpaar 1, 3 mit der gesamten, also vergrößerten Kolbenfläche zur Umwandlung von Druck- auf Bewegungsenergie genutzt werden kann. Beim Arbeitsgang "Ausstoßen", Fig. 1d, wird der äußere Kolben 1 durch den inneren Kolben 3 wieder in seine ursprüngliche Ausgangslage gehoben, sodass das Arretierungselement 2 bevorzugt von einer am äußeren Kolben vorgesehenen Ausnehmung 6 endet.The entire working piston consists of two nested pistons, one (outer) piston 1 and the other (inner) piston 3. In the intake stroke, Fig. 1a , the inner, small piston 3 sucks through the opening in the outer piston 1, the fuel-air mixture, while the outer piston 1 remains at top dead center. Such a piston is also described in the patent US-A-2008/0245333 , The compaction, Fig. 1b . is also done by the small piston 3. When working, Fig. 1c , the upper piston 1 is unlocked by the preferably ring-shaped locking element 2, so that the piston pair 1, 3 can be used with the entire, so enlarged piston area for converting pressure to kinetic energy. In the operation "Ejection", Fig. 1d , the outer piston 1 is lifted by the inner piston 3 back to its original starting position, so that the locking element 2 preferably ends from a recess 6 provided on the outer piston.

Die gesamte Kolbenfläche kann bei dieser Vorrichtung so angepasst werden, dass der Restdruck beim Öffnen des Auslassventils wesentlich geringer als beim bekannten Arbeitstakt eines Viertakt-Ottomotors gehalten werden kann. Durch Simulationsverfahren nach dem Modell des Gleichraumprozesses kann gezeigt werden, dass die Vorrichtung soweit optimiert werden kann, dass beim Öffnen des Auslassventils der Restdruck im Zylinderraum dem Umgebungsdruck entspricht, was die Energieausbeute des Kreisprozesses steigert. Der Energiezugewinn ist in Fig. 2, im Diagrammbereich 8 dargestellt und ergab bei Vergleichsrechnungen mit einem Standardhubkolbenmotor Wirkungsgradverbesserungen von 0,14.The entire piston surface can be adjusted in this device so that the residual pressure when opening the exhaust valve can be kept much lower than the known power stroke of a four-stroke gasoline engine. By simulation method according to the model of the Gleichraumprozesses can be shown that the device can be optimized so far that when opening the exhaust valve, the residual pressure in the cylinder chamber corresponds to the ambient pressure, which increases the energy yield of the cycle. The energy gain is in Fig. 2 , shown in Chart Area 8, yielding efficiency improvements of 0.14 for comparative calculations with a standard reciprocating engine.

Die Kräfteübertragung erfolgt mit bekannten Mitteln wie Pleuelstange 4, Kurbelkröpfung 5 und Kurbelbolzen 7.The power transmission takes place with known means such as connecting rod 4, crank 5 and crank pin. 7

Entgegen der sich einstellenden Vermutung aus den grafischen Darstellungen der Arbeitszyklen eine Erhöhung der Reibungsverluste abzuleiten, kann durch Simulationsverfahren gezeigt werden, dass mit einer Reibungskonstanthaltung zu rechnen ist und ungleichmäßige Laufeigenschaften des Motors durch die Erfindung gedämpft werden. Das Simulationsmodell beruht auf der Überlegung, dass sich die Summe der Relativbewegungen nicht erhöht. Sie besteht entweder zwischen dem Innenkolben 3 und dem Außenkolben 1, oder zwischen dem Außenkolben 1 und dem Motorzylinder. Daraus ergibt sich zwangsläufig der Vorteil, dass sich durch die verteilten Bewegungen der Verschleiß auf unterschiedliche Teile aufteilt.Contrary to the assumption arising from the graphical representations of the working cycles to derive an increase in the friction losses, it can be shown by simulation methods that frictional stabilization is to be expected and uneven running properties of the engine are damped by the invention. The simulation model is based on the consideration that the sum of the relative movements does not increase. It consists either between the inner piston 3 and the outer bulb 1, or between the outer bulb 1 and the engine cylinder. This inevitably results in the advantage that due to the distributed movements, the wear is divided between different parts.

Zusammengefasst können die Vorteile der Erfindung in einem höheren thermischen Wirkungsgrad des Motors, in weniger zusätzlichen Teilen für einen Doppelkolbenmotor als bei bisherigen Lösungen, darin, dass die herkömmlich bekannten Verfahren zur Leistungssteigerung bei Verbrennungskraftmotoren weiterhin genutzt werden können und in einer Erhöhung der Lebensdauer an den Kolbenringen und Laufflächen durch Aufteilung der Reibung auf den Innen -und Außenkolben liegen.In summary, the advantages of the invention in a higher thermal efficiency of the engine, in fewer additional parts for a dual piston engine than in previous solutions, in that the conventionally known methods for increasing the performance of internal combustion engines can continue to be used and in an increase in the life of the piston rings and running surfaces by dividing the friction on the inner and outer pistons are.

Bezugszeichenliste:LIST OF REFERENCE NUMBERS

11 Außenkolbenouter envelope 22 Arretierungselementlocking 33 Innenkolbeninternal piston 44 Pleuelstangeconnecting rod 55 Kurbelkröpfungcrank throw 66 Ausnehmungrecess 77 Kolbenbolzenpiston pin 88th Energieflächeenergy surface

Claims (5)

  1. A dual piston engine including two pistons (1, 3) which are arranged slidably against each other within a combustion chamber, wherein
    the outer diameter of said one piston (1) approximately corresponds to the inner diameter of the combustion chamber, said one piston (1) being slidably arranged within the combustion chamber and comprising, on its side facing away from the combustion chamber, a receptacle for said other piston (3), and
    said other piston (3) is slidably arranged within the receptacle of said one piston (1) and is connected to a shaft through a connecting rod (4),
    wherein said one piston (1) comprises, on its end face facing away from said other piston (3), an opening which connects the receptacle to the combustion chamber above said one piston (1) and can be closed by said other piston (3),
    characterized in that
    said dual piston engine comprises a recess (6) arranged on the outer surface of said one piston (1), for receiving a locking element (2) arranged on the inner wall of the combustion chamber.
  2. The dual piston engine according to claim 1, comprising a locking element (2) which acts on said one piston (1) and locks the position of said one piston (1) within the combustion chamber.
  3. The dual piston engine according to claim 1, wherein the locking element (2) is a sealing element which seals the gap between said first piston (1) and the inner wall of the combustion chamber.
  4. The dual piston engine according to any one of the preceding claims, wherein said other piston (3) is conically formed on its end face facing the opening of said one piston (1), and the opening is formed complementarily thereto.
  5. The dual piston engine according to any one of the preceding claims, wherein said one and said other piston (1, 3) form an even surface when the opening of said one piston (1) is closed by said other piston (3).
EP10740133.3A 2009-07-03 2010-06-14 Inline dual piston engine Not-in-force EP2449227B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200910031860 DE102009031860A1 (en) 2009-07-03 2009-07-03 Inline double piston engine
PCT/DE2010/000660 WO2011000342A2 (en) 2009-07-03 2010-06-14 Inline dual piston engine

Publications (2)

Publication Number Publication Date
EP2449227A2 EP2449227A2 (en) 2012-05-09
EP2449227B1 true EP2449227B1 (en) 2013-04-24

Family

ID=43257759

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10740133.3A Not-in-force EP2449227B1 (en) 2009-07-03 2010-06-14 Inline dual piston engine

Country Status (3)

Country Link
EP (1) EP2449227B1 (en)
DE (1) DE102009031860A1 (en)
WO (1) WO2011000342A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012004981A1 (en) * 2012-03-14 2013-09-19 Fachhochschule Lübeck Control for an inline double piston engine
US8893671B2 (en) * 2012-08-22 2014-11-25 Jack R. Taylor Full expansion internal combustion engine with co-annular pistons
CN104632381A (en) * 2015-01-07 2015-05-20 吕建伟 Automobile double-piston transfiguration type engine
CN106014626A (en) * 2016-07-12 2016-10-12 魏伯卿 Multistage sleeve cylinder change device of variable cylinder engine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR652172A (en) * 1928-01-28 1929-03-05 Improvements to internal combustion engines
DE2709939A1 (en) 1977-03-08 1978-09-14 Horst Lubbe Double acting engine with telescopic pistons - has profiled spigot through one crown controlling inflow to between piston chamber
US4164916A (en) * 1978-08-07 1979-08-21 Wuerfel Robert P Variable displacement arrangement in four cycle, reciprocating, internal combustion engine
JPS6336030A (en) * 1985-12-27 1988-02-16 Watanabe Kikai Kogyo Kk Internal combustion engine provided with double piston
DE4006012A1 (en) 1990-02-26 1991-09-05 Horst Dipl Ing Pehlemann IC engine with variable compression space - has auxiliary cylinder connected to each main cylinder
US7438028B1 (en) * 2007-04-05 2008-10-21 Edward Lawrence Warren Four stroke engine with a fuel saving sleeve

Also Published As

Publication number Publication date
WO2011000342A3 (en) 2011-03-17
DE102009031860A1 (en) 2011-01-13
WO2011000342A2 (en) 2011-01-06
EP2449227A2 (en) 2012-05-09

Similar Documents

Publication Publication Date Title
DE60225451T2 (en) DIVIDED FOUR-STORE COMBUSTION ENGINE
DE69022434T2 (en) INTERNAL COMBUSTION ENGINE.
DE60018609T2 (en) Piston engine with balancing and charging
EP2449227B1 (en) Inline dual piston engine
DE212012000008U1 (en) Engine with internal combustion
DE212012000010U1 (en) Engine with internal combustion
DE112017002489T5 (en) Double crankshaft engine
DE1451690A1 (en) Rotary piston power or working machine
DE102015002385A1 (en) Twin crank planetary gear for Atkinson engine
DE102014220937B4 (en) Drive device for driving a high-pressure fuel pump and high-pressure fuel pump
DE102007039912A1 (en) Asynchronous power generator with free-piston engine
DE4312954A1 (en) Kinematics on reciprocating piston engine
DE202013009627U1 (en) Coaxial piston engine with one or more cylinders, with a respective double-acting piston
DE19654994C2 (en) Apparatus for mutual conversion of rotational motion to reciprocal motion
DE3152567A1 (en) Internal combustion engine
DE3921581A1 (en) IC engine with double acting piston - has its piston rod attached to crosshead
DE3920620A1 (en) ROTATION MACHINE
DE3710706A1 (en) Crank mechanism of a reciprocating piston type internal combustion engine
DE60120568T2 (en) Isochore internal combustion engine
DE102011113525A1 (en) Method for increasing effective pressure in piston combustion engine of passenger car, involves forming recess by arrangement of part relative to axles, where moment of excluding material for formation of recess and moment of part are same
DE3137979A1 (en) Lever piston engine
DE2513380A1 (en) Low weight oil engine of short stroke - has light alloy housing with one injector for two cylinders
DE102007005228B4 (en) Motor with a piston with a rectangular cross section
EP3118410A1 (en) Reciprocating piston engine
DE102011100351B4 (en) Reciprocating engine with periodically changing piston stroke

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20120103

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 608768

Country of ref document: AT

Kind code of ref document: T

Effective date: 20130515

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502010003088

Country of ref document: DE

Effective date: 20130627

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20130424

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130804

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130424

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130424

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130824

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130725

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130724

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130826

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130424

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130424

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130424

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130424

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130424

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130724

BERE Be: lapsed

Owner name: FACHHOCHSCHULE LUBECK

Effective date: 20130630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130424

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130424

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130424

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130424

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130424

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130424

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130424

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130630

26N No opposition filed

Effective date: 20140127

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130614

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502010003088

Country of ref document: DE

Effective date: 20140127

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20140614

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130424

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140630

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140614

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130424

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130424

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130424

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20100614

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130614

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 7

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 608768

Country of ref document: AT

Kind code of ref document: T

Effective date: 20150614

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150614

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 8

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130424

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 502010003088

Country of ref document: DE

Representative=s name: BOEHMERT & BOEHMERT ANWALTSPARTNERSCHAFT MBB -, DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 502010003088

Country of ref document: DE

Owner name: TECHNISCHE HOCHSCHULE LUEBECK, DE

Free format text: FORMER OWNER: FACHHOCHSCHULE LUEBECK, 23562 LUEBECK, DE

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20190305

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20190603

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20190510

Year of fee payment: 10

Ref country code: SE

Payment date: 20190503

Year of fee payment: 10

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502010003088

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210101

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200615

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200614