DE102004027582A1 - Internal combustion engine with an exhaust gas turbocharger - Google Patents
Internal combustion engine with an exhaust gas turbocharger Download PDFInfo
- Publication number
- DE102004027582A1 DE102004027582A1 DE102004027582A DE102004027582A DE102004027582A1 DE 102004027582 A1 DE102004027582 A1 DE 102004027582A1 DE 102004027582 A DE102004027582 A DE 102004027582A DE 102004027582 A DE102004027582 A DE 102004027582A DE 102004027582 A1 DE102004027582 A1 DE 102004027582A1
- Authority
- DE
- Germany
- Prior art keywords
- exhaust gas
- turbine
- internal combustion
- combustion engine
- phi
- 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.)
- Withdrawn
Links
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
- 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
- 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
- F02B37/24—Control of the pumps by using pumps or turbines with adjustable guide vanes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Supercharger (AREA)
Abstract
Eine Brennkraftmaschine weist einen Abgasturbolader auf, dessen Abgasturbine in der Weise dimensioniert ist, dass das Verhältnis von einem gegebenen motorspezifischen Durchsatzparameter zu einem turbinenspezifischen Stopfdurchsatzparameter in einem definierten Wertebereich liegt.An internal combustion engine has an exhaust gas turbocharger whose exhaust gas turbine is dimensioned in such a way that the ratio of a given engine-specific throughput parameter to a turbine-specific plug flow rate parameter lies within a defined value range.
Description
Die Erfindung bezieht sich auf eine Brennkraftmaschine mit einem Abgasturbolader nach dem Oberbegriff des Anspruches 1.The The invention relates to an internal combustion engine with an exhaust gas turbocharger according to the preamble of claim 1.
In
der Druckschrift
Bei der Dimensionierung von Abgasturboladern für Brennkraftmaschinen muss generell zwei gegensätzlichen Kriterien Rechnung getragen werden. Einerseits ist man bestrebt, möglichst kleine Lader zu verwenden, die sich aufgrund ihrer geringeren Massenträgheit durch ein besseres Ansprechverhalten insbesondere im unteren Last-/Drehzahlbereich sowie im transienten Bereich auszeichnen und bei denen die Pumpgrenze des Verdichters zugunsten kleinerer Massenströme verschoben ist. Andererseits werden aus Wirkungsgradgründen bevorzugt größere Abgasturbolader eingesetzt, die sich durch eine zugunsten höherer Massendurchsätze verschobene Stopfgrenze auszeichnen. Insbesondere für Abgasturbinen ist eine hohe Stopfgrenze erstrebenswert, um einen unzulässig hohen Anstieg des Abgasgegendrucks zu vermeiden.at the dimensioning of exhaust gas turbochargers for internal combustion engines must generally two opposing Criteria are taken into account. On the one hand, one strives preferably to use small loaders, due to their lower inertia due to a better response especially in the lower load / speed range as well in the transient region and where the surge line of the compressor is shifted in favor of smaller mass flows. on the other hand be for efficiency reasons preferably larger turbocharger used, which is shifted by one in favor of higher mass flow rates Mark the stuffing limit. In particular for exhaust gas turbines is a high Stopfgrenze desirable to an inadmissibly high increase in exhaust back pressure to avoid.
Der Erfindung liegt das Problem zugrunde, mit einfachen Maßnahmen eine Brennkraftmaschine mit einem in einem weiten Betriebsbereich nutzbaren Abgasturbolader zu schaffen. Der Verdichter des Abgasturboladers soll sich insbesondere durch eine niedrige Pumpgrenze auszeichnen, außerdem sollen hohe Abgasmassenströme zu bewältigen sein.Of the Invention is based on the problem with simple measures an internal combustion engine with one in a wide operating range usable turbocharger to create. The compressor of the exhaust gas turbocharger should be characterized in particular by a low surge limit, Furthermore should high exhaust gas mass flows to manage something be.
Dieses Problem wird erfindungsgemäß mit den Merkmalen des Anspruches 1 gelöst. Die Unteransprüche geben zweckmäßige Weiterbildungen an.This Problem is inventively with the Characteristics of claim 1 solved. The dependent claims give expedient further education at.
Bei der erfindungsgemäßen Brennkraftmaschine mit Abgasturbolader ist ein die Turbine überbrückender Bypass im Abgasstrang vorgesehen, wobei im Bypass ein einstellbares Bypassventil angeordnet ist, über das der Durchfluss durch den Bypass steuerbar ist. Des Weiteren kann eine Dimensionierungs regel für die Abgasturbine als Funktion eines vom Motor im Nennleistungspunkt benötigten Durchsatzparameters sowie eines turbinenspezifischen Stopfdurchsatzparameters angegeben werden. Das Verhältnis dieser Durchsatzparameter muss in einem Wertebereich zwischen 1,05 und 1,50 liegen, um dem Erfordernis nach bestmöglicher Dimensionierung Rechnung zu tragen. Bei dieser Dimensionierung übersteigt der motorspezifische Durchsatzparameter, der das Gesamtschluckverhalten der Brennkraftmaschine in deren Nennpunkt bezeichnet, den turbinenspezifischen Stopfdurchsatzparameter der Abgasturbine zumindest um den Faktor 1,05 und maximal um den Faktor 1,50. In Motorbetriebsbereichen mit hoher Last und Drehzahl, in denen ein hoher Abgasmassenstrom erzeugt wird, welcher aufgrund der zu kleinen Turbine zu hohen Abgasgegendrücken führen würde, wird eine Abblasung über den Bypass durchgeführt, wodurch sichergestellt ist, dass der Abgasgegendruck einen maximal zulässigen Grenzwert nicht übersteigt. Zugleich ist der Abgasturbolader aber klein genug ausgelegt und besitzt ein verhältnismäßig kleines Massenträgheitsmoment, dass ein schnelles Ansprechen des Abgasturboladers insbesondere bereits bei niedrigen Lasten und Drehzahlen der Brennkraftmaschine sowie im transienten Übergangsbereich sichergestellt ist. Derartige, klein dimensionierte Abgasturbolader weisen eine zugunsten kleinerer Massenströme verschobene Pumpgrenze auf. Außerdem ist bei niedrigen Durchsätzen der Wirkungsgrad verbessert, welcher sich bei Volllast bei zugleich niedriger Motordrehzahl sowie bei Instationärvorgängen positiv auswirkt.at the internal combustion engine according to the invention with turbocharger is a turbine bridging bypass in the exhaust system provided, wherein arranged in the bypass an adjustable bypass valve is over that the flow through the bypass is controllable. Furthermore can a sizing rule for the exhaust gas turbine as a function a flow rate parameter required by the engine at rated power point and a turbine-specific Stopfdurchsatzparameters indicated become. The relationship this throughput parameter must be in a range between 1.05 and 1.50 are in line with the requirement for the best possible sizing to wear. In this dimensioning exceeds the engine-specific Throughput parameters, the total absorption behavior of the internal combustion engine in their nominal point, the turbine-specific Stopfdurchsatzparameter the exhaust gas turbine at least by a factor of 1.05 and at most by the Factor 1.50. In engine operating ranges with high load and speed, in which a high exhaust gas mass flow is generated, which due to The too small turbine would lead to high exhaust back pressures, is a blow over the Bypass performed, which ensures that the exhaust back pressure a maximum permissible Limit does not exceed. At the same time, the exhaust gas turbocharger is designed to be small enough and owns a relatively small Inertia, that a quick response of the exhaust gas turbocharger in particular even at low loads and speeds of the internal combustion engine as well as in the transient transition region is ensured. Such, small-sized exhaust gas turbocharger have a pumping limit shifted in favor of smaller mass flows. Furthermore is at low flow rates the Improved efficiency, which at full load at the same time low engine speed as well as during instationary operations has a positive effect.
Die erfindungsgemäße Kombination von Brennkraftmaschine und Abgasturbolader eignet sich insbesondere für Lader, deren Abgasturbine mit einer variablen Turbinengeometrie zur veränderlichen Einstellung des wirksamen Turbineneintrittsquerschnittes ausgestattet ist. In diesem Fall bezieht sich der turbinenspezifische Stopfdurchsatzparameter auf die maximale Öffnungsstellung der variablen Turbinengeometrie, bei der ein maximal möglicher Durchfluss durch die Turbine möglich ist. Die variable Turbinengeometrie ermöglicht nicht nur in der befeuerten Antriebsbetriebsweise, sondern im unbefeuerten Motorbremsbetrieb eine optimierte Betriebsweise. Im Motorbremsbetrieb wird die variable Turbinengeometrie in eine den wirksamen Turbineneintrittsquerschnitt reduzierende Staustellung versetzt, wodurch ein erhöhter Abgasgegendruck aufgebaut wird, gegen den die Brennkraftmaschine Ausschubarbeit verrichten muss.The inventive combination of internal combustion engine and turbocharger is particularly suitable for superchargers whose exhaust gas turbine is equipped with a variable turbine geometry for variable adjustment of the effective turbine inlet cross-section. In this case, the turbine specific plug flow rate parameter refers to the maximum open position of the variable turbine geometry, which allows maximum possible flow through the turbine. The variable turbine geometry enables not only in the fired drive mode, but in the unfired engine Brake operation an optimized mode of operation. In engine braking operation, the variable turbine geometry is displaced into a stowage position which reduces the effective turbine inlet cross section, whereby an increased exhaust back pressure is built up, against which the internal combustion engine must perform exhaust work.
Des Weiteren kann es vorteilhaft sein, den Verdichter des Abgasturboladers mit einer variablen Verdichtergeometrie zur veränderlichen Einstellung des wirksamen Verdichtereintrittsquerschnitts auszustatten. Über die Einstellung der variablen Verdichtergeometrie kann die Pumpgrenze im Verdichterkennfeld zugunsten kleinerer Massenströme verschoben werden, was für eine Steigerung der Ladedrücke bei niedrigen Motordrehzahlen ausgenutzt werden kann.Of Furthermore, it may be advantageous to the compressor of the exhaust gas turbocharger with a variable compressor geometry for variable adjustment of the equip effective compressor inlet cross section. About the Setting the variable compressor geometry can be the surge line shifted in the compressor map in favor of smaller mass flows become, what for an increase in boost pressures can be exploited at low engine speeds.
Bei einem vorteilhaften Verfahren zum Betrieb einer Brennkraftmaschine mit einem Abgasturbolader, welcher entsprechend der vorgenannten Beziehung für das Verhältnis von motorspezifischem Durchsatzparameter zu turbinenspezifischem Stopfdurchsatzparameter dimensioniert ist, wird der Ladedruck im Ansaugtrakt der Brennkraftmaschine gemessen und das Bypassventil zur Umgehung der Abgasturbine für den Fall geöffnet, dass der Ladedruck einen Grenzwert überschreitet. Für diese, auf dem Ladedruck basierende Einstellung werden lediglich Drucksensoren im Ansaugtrakt stromab des Verdichters benötigt, darüber hinaus sind keine weiteren Sensoren erforderlich.at an advantageous method for operating an internal combustion engine with an exhaust gas turbocharger, which corresponds to the aforementioned Relationship for The relationship from engine-specific throughput parameter to turbine-specific Stopfdurchsatzparameter is dimensioned, the boost pressure in Intake tract of the internal combustion engine measured and the bypass valve to bypass the exhaust gas turbine for open the case, that the boost pressure exceeds a limit. For this, boost pressure based settings are just pressure sensors in the intake tract downstream of the compressor needed, moreover, are no other sensors required.
Weitere Vorteile und zweckmäßige Ausführungen sind den weiteren Ansprüchen, der Figurenbeschreibung und den Zeichnungen zu entnehmen. Es zeigen:Further Advantages and expedient designs are the further claims, the figure description and the drawings. Show it:
Die
in
Der
Verdichter
Die
im Verdichter
Im
Abgasstrang
Stromab
der Abgasturbine
Über eine
Steuer- und Regeleinheit
Gemäß einer
alternativen Ausführung
besitzt der Abgasturbolader
Als
Dimensionierungsregel für
die Abgasturbine
Bei
einer Auslegung der Abgasturbine
Das
in
Eingezeichnet
ist auch der turbinenspezifische Stopfdurchsatzparameter PHIT,Stopf der Abgasturbine
Im
Wertebereich zwischen dem turbinenspezifischen Stopfdurchsatzparameter
PHIT,Stopf und dem darüber liegenden motorspezifischen
Durchsatzparameter PHIMot,Nenn ist die Abgasturbine
Die
Einstellung sowohl der variablen Turbinengeometrie
Claims (6)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004027582A DE102004027582A1 (en) | 2004-06-05 | 2004-06-05 | Internal combustion engine with an exhaust gas turbocharger |
PCT/EP2005/005718 WO2005121524A1 (en) | 2004-06-05 | 2005-05-27 | Internal combustion engine comprising an exhaust-gas turbocharger |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004027582A DE102004027582A1 (en) | 2004-06-05 | 2004-06-05 | Internal combustion engine with an exhaust gas turbocharger |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102004027582A1 true DE102004027582A1 (en) | 2005-12-22 |
Family
ID=34970862
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE102004027582A Withdrawn DE102004027582A1 (en) | 2004-06-05 | 2004-06-05 | Internal combustion engine with an exhaust gas turbocharger |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE102004027582A1 (en) |
WO (1) | WO2005121524A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007025077A1 (en) * | 2007-05-30 | 2008-12-04 | Volkswagen Ag | Internal combustion engine operating method, involves selecting one of combinations of waste gate-positions and variable turbine geometry positions, which has best-possible exhaust gas turbocharger-efficiency, for operating point of engine |
DE102007054998A1 (en) | 2007-11-17 | 2009-05-20 | Volkswagen Ag | Internal-combustion engine i.e. petrol engine, has waste gate that is designed such that resulting flow is included within output of engine and guided without development of exhaust counter-pressure at turbine |
WO2009077033A1 (en) * | 2007-12-14 | 2009-06-25 | Daimler Ag | Internal combustion engine and method for controlling an internal combustion engine in a motor vehicle |
WO2019206629A1 (en) * | 2018-04-24 | 2019-10-31 | Volkswagen Aktiengesellschaft | Method for operating a gas-operated internal combustion engine having variable turbine geometry turbocharger |
WO2019206628A1 (en) * | 2018-04-24 | 2019-10-31 | Volkswagen Aktiengesellschaft | Method for operating an internal combustion engine which is operated by gas, with a vtg supercharger |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0075360A1 (en) * | 1981-09-22 | 1983-03-30 | BBC Aktiengesellschaft Brown, Boveri & Cie. | Supercharging process for internal-combustion engines by a turbocharger with variable exhaust swallow capacity, and internal-combustion engine working according to this process |
DE3941715A1 (en) * | 1989-12-18 | 1991-06-20 | Porsche Ag | EXHAUST TURBOCHARGER FOR AN INTERNAL COMBUSTION ENGINE |
DE4445489A1 (en) * | 1994-12-20 | 1996-06-27 | Audi Ag | Exhaust gas turbocharger |
DE10152804A1 (en) * | 2001-10-25 | 2003-05-08 | Daimler Chrysler Ag | Internal combustion engine with exhaust gas turbocharger and exhaust feedback, has ratio of sizes of exhaust gas turbine flow channels defined depending on total stroke volume of engine |
DE10152803A1 (en) * | 2001-10-25 | 2003-05-15 | Daimler Chrysler Ag | Internal combustion engine with an exhaust gas turbocharger and an exhaust gas recirculation device |
DE10213897A1 (en) * | 2002-03-28 | 2003-10-09 | Daimler Chrysler Ag | Variable turbocharger |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19825920B4 (en) * | 1998-06-10 | 2008-07-03 | Daimler Ag | Method for operating a supercharged internal combustion engine |
DE19843026C2 (en) * | 1998-09-19 | 2001-02-08 | Daimler Chrysler Ag | Internal combustion engine and method for controlling a bypass valve in the exhaust gas turbocharger of an internal combustion engine |
-
2004
- 2004-06-05 DE DE102004027582A patent/DE102004027582A1/en not_active Withdrawn
-
2005
- 2005-05-27 WO PCT/EP2005/005718 patent/WO2005121524A1/en active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0075360A1 (en) * | 1981-09-22 | 1983-03-30 | BBC Aktiengesellschaft Brown, Boveri & Cie. | Supercharging process for internal-combustion engines by a turbocharger with variable exhaust swallow capacity, and internal-combustion engine working according to this process |
DE3941715A1 (en) * | 1989-12-18 | 1991-06-20 | Porsche Ag | EXHAUST TURBOCHARGER FOR AN INTERNAL COMBUSTION ENGINE |
DE4445489A1 (en) * | 1994-12-20 | 1996-06-27 | Audi Ag | Exhaust gas turbocharger |
DE10152804A1 (en) * | 2001-10-25 | 2003-05-08 | Daimler Chrysler Ag | Internal combustion engine with exhaust gas turbocharger and exhaust feedback, has ratio of sizes of exhaust gas turbine flow channels defined depending on total stroke volume of engine |
DE10152803A1 (en) * | 2001-10-25 | 2003-05-15 | Daimler Chrysler Ag | Internal combustion engine with an exhaust gas turbocharger and an exhaust gas recirculation device |
DE10213897A1 (en) * | 2002-03-28 | 2003-10-09 | Daimler Chrysler Ag | Variable turbocharger |
Non-Patent Citations (4)
Title |
---|
PUCHER,Helmut: Aufladung von Verbrennungsmotoren, expert verlag, Sindelfingen, 1985, Kontakt & Studium, Bd.133, Maschinentechnik, ISBN 3-88508-981-5, S.139- 140,149-153 * |
PUCHER,Helmut: Aufladung von Verbrennungsmotoren, expert verlag, Sindelfingen, 1985, Kontakt & Studium, Bd.133, Maschinentechnik, ISBN 3-88508-981-5, S.139- 140,149-153; |
RAUTENBERG,Manfred (Hrsg.): Aufladung von Verbrennungsmotoren, Entwicklung, Regelung und Stand der Technik, (Referate der Fachtagung, Aufladung von Verbrennungsmotoren v. 12./13. Nov. 1990 im Haus der Technik, Essen), Braunschweig (u.a.): Vieweg, 1990 (Fortschritte der Fahrzeugtechnik, Bd.6), ISBN 3-528-06404-8, S.207,221-232 * |
RAUTENBERG,Manfred (Hrsg.): Aufladung von Verbrennungsmotoren, Entwicklung, Regelung und Stand der Technik, (Referate der Fachtagung, Aufladung von Verbrennungsmotoren v. 12./13. Nov. 1990 im Haus der Technik, Essen), Braunschweig (u.a.): Vieweg, 1990 (Fortschritte der Fahrzeugtechnik, Bd.6), ISBN 3-528-06404-8, S.207,221-232; |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007025077A1 (en) * | 2007-05-30 | 2008-12-04 | Volkswagen Ag | Internal combustion engine operating method, involves selecting one of combinations of waste gate-positions and variable turbine geometry positions, which has best-possible exhaust gas turbocharger-efficiency, for operating point of engine |
DE102007025077B4 (en) * | 2007-05-30 | 2017-10-05 | Volkswagen Ag | Method for operating an internal combustion engine |
DE102007054998A1 (en) | 2007-11-17 | 2009-05-20 | Volkswagen Ag | Internal-combustion engine i.e. petrol engine, has waste gate that is designed such that resulting flow is included within output of engine and guided without development of exhaust counter-pressure at turbine |
WO2009077033A1 (en) * | 2007-12-14 | 2009-06-25 | Daimler Ag | Internal combustion engine and method for controlling an internal combustion engine in a motor vehicle |
US8312720B2 (en) | 2007-12-14 | 2012-11-20 | Daimler A G | Method for controlling an engine braking device of an internal combustion engine and internal combustion engine for a motor vehicle |
WO2019206629A1 (en) * | 2018-04-24 | 2019-10-31 | Volkswagen Aktiengesellschaft | Method for operating a gas-operated internal combustion engine having variable turbine geometry turbocharger |
WO2019206628A1 (en) * | 2018-04-24 | 2019-10-31 | Volkswagen Aktiengesellschaft | Method for operating an internal combustion engine which is operated by gas, with a vtg supercharger |
Also Published As
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WO2005121524A1 (en) | 2005-12-22 |
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OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
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Owner name: DAIMLERCHRYSLER AG, 70327 STUTTGART, DE |
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Owner name: DAIMLER AG, 70327 STUTTGART, DE |
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