EP3379045B1 - Device for optimising the lubricating oil side heating behaviour of a combustion engine and method for operating a combustion engine - Google Patents

Device for optimising the lubricating oil side heating behaviour of a combustion engine and method for operating a combustion engine Download PDF

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Publication number
EP3379045B1
EP3379045B1 EP18000200.8A EP18000200A EP3379045B1 EP 3379045 B1 EP3379045 B1 EP 3379045B1 EP 18000200 A EP18000200 A EP 18000200A EP 3379045 B1 EP3379045 B1 EP 3379045B1
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EP
European Patent Office
Prior art keywords
sump
combustion engine
oil
internal combustion
additional
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.)
Active
Application number
EP18000200.8A
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German (de)
French (fr)
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EP3379045A1 (en
Inventor
Joachim Joisten-Pieritz
Martin Kopiniok
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.)
Deutz AG
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Deutz AG
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/0004—Oilsumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
    • F01M5/02—Conditioning lubricant for aiding engine starting, e.g. heating
    • F01M5/021—Conditioning lubricant for aiding engine starting, e.g. heating by heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
    • F01M5/02—Conditioning lubricant for aiding engine starting, e.g. heating
    • F01M5/021—Conditioning lubricant for aiding engine starting, e.g. heating by heating
    • F01M2005/023—Oil sump with partition for facilitating heating of oil during starting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/0004—Oilsumps
    • F01M2011/0037—Oilsumps with different oil compartments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/0004—Oilsumps
    • F01M2011/0037—Oilsumps with different oil compartments
    • F01M2011/0045—Oilsumps with different oil compartments for controlling the oil temperature

Definitions

  • the invention relates to an oil pan for an internal combustion engine with a main oil pan and at least one additional oil tank, the additional oil tank having at least one valve system which communicates with the main oil pan, the valve system having at least one actuator which moves the valve system as a function of the oil temperature in such a way that at Reaching an operating temperature of the auxiliary oil tank is connected to the main oil pan.
  • Such an oil pan is, for example, from DE10245357A1 known.
  • This oil sump includes the entire volume of oil that is available to supply oil to the internal combustion engine.
  • the EP 1878884 B1 shows an oil collecting device for an internal combustion engine.
  • EP 1 806 483 B1 describes an oil pan having a first chamber open to an object lubricated by oil and a second chamber adjacent to the first chamber.
  • a partition wall is provided between the chambers.
  • a communication opening which can be closed by a cover element, is arranged in the partition wall.
  • the object of the present invention is to develop a device that enables faster heating of the lubricating oil circuit in the warm-up phase of the engine.
  • the new solution consists of a device in the sump that allows the lubricating oil circuit to be centralized during the warm-up phase, so that there is only a small quantity of oil in circulation, which can be heated quickly and from the quantity of cold oil in the sump and its more negative Heat capacity is thermally separated.
  • the surrounding, cold lubricating oil which is located in the surrounding oil pan, is automatically integrated into the oil circuit by a valve system.
  • the advantage here is that the engine can be warmed up much more quickly on the oil side. There is a significant reduction in friction and thus significant fuel savings in the warm-up phase of the engine.
  • Pistons and cylinder tubes are charged with warm oil more quickly, the engine combustion can reach the design point more quickly and thus generate lower emissions in the cold-running phase.
  • the heating of the lubricating oil circuit can be decoupled from the water circuit, which leads to a further reduction in friction when the oil cooler is bypassed in the warm-up phase of the engine. Faster heating of the engine leads to a significant reduction in wear during the warm-up phase of the engine.
  • figure 1 shows an oil pan with an additional container.
  • the oil pan 1 is equipped with a central, low-volume additional oil reservoir 2, which is equipped with an intake port 3 to supply the engine-side lubricating oil pump and which is connected via a valve system 4, 5 to the main oil pan surrounding it, depending on the lubricating oil temperature by an actuator 6 can be coupled or decoupled.
  • this additional container 2 can also be thermally insulated so that the heating process is implemented more quickly.
  • the additional oil tank is filled with warmed oil dripping from the crankcase via the oil drip tray 8.
  • the additional oil tank 2 is connected to the residual volume of the main oil pan 1 by the valve 5 by the actuator 6 .
  • the actuator 6 can be controlled electromechanically, electrohydraulically, electromagnetically, hydraulically, pneumatically, mechanically or thermally via a wax cartridge or shape memory spring or a bimetallic spring.
  • the actuator can be controlled with a control unit or be self-regulating (e.g.: shape memory spring).
  • the valve of the valve system 4 is not absolutely necessary for the function of the apparatus if the cooling effect during hot operation, which is caused by a Insulation of the additional oil tank 2 is restricted, is sufficient.
  • the additional oil tank 2 When the engine is first filled with lubricating oil or when the oil is changed, the additional oil tank 2 is filled by an automatically acting fill level valve 7, which decouples the additional oil tank 2 from the main oil pan 1 when it is full.
  • this filling level valve 7 can function as a safety valve in the event of a malfunction of the actuator 6 or the valves of the valve system 4, 5, so that engine damage due to a malfunction can be reliably ruled out.

Description

Die Erfindung betrifft eine Ölwanne für eine Brennkraftmaschine mit einer Hauptölwanne und wenigstens einem Zusatzölbehälter, wobei der Zusatzölbehälter wenigstens ein Ventilsystem aufweist, das mit der Hauptölwanne kommuniziert, wobei das Ventilsystem wenigstens einen Aktuator aufweist, der das Ventilsystem in Abhängigkeit der Öltemperatur derart bewegt, dass bei Erreichen einer Betriebstemperatur der Zusatzölbehälter mit der Hauptölwanne verbunden ist.The invention relates to an oil pan for an internal combustion engine with a main oil pan and at least one additional oil tank, the additional oil tank having at least one valve system which communicates with the main oil pan, the valve system having at least one actuator which moves the valve system as a function of the oil temperature in such a way that at Reaching an operating temperature of the auxiliary oil tank is connected to the main oil pan.

Eine solche Ölwanne ist zum Beispiel aus der DE 10245357 A1 bekannt.Such an oil pan is, for example, from DE10245357A1 known.

Bisher wird der Schmierölbedarf einer Verbrennungskraftmaschine aus einem Ölsumpf, der sich zumeist in einer Ölwanne befindet, gedeckt. Dieser Ölsumpf umfasst das gesamte Ölvolumen, das zur Ölversorgung der Verbrennungskraftmaschine vorhanden ist.So far, the lubricating oil requirement of an internal combustion engine has been covered from an oil sump, which is usually located in an oil pan. This oil sump includes the entire volume of oil that is available to supply oil to the internal combustion engine.

Aus der WO 2008142078 A2 ist ein Verfahren und eine Vorrichtung für ein Ölkreislaufmanagement in einer Verbrennungskraftmaschine bekannt.From the WO 2008142078 A2 a method and a device for oil circuit management in an internal combustion engine are known.

Weiter ist aus der DE 1034401 A1 ein Verfahren zum Temperieren eines Verbrennungsmotors und Kühlsystem für einen Verbrennungsmotor bekannt.Next is from the DE 1034401 A1 a method for tempering an internal combustion engine and cooling system for an internal combustion engine is known.

Die EP 1878884 B1 zeigt eine Ölauffangvorrichtung für eine Brennkraftmaschine.The EP 1878884 B1 shows an oil collecting device for an internal combustion engine.

In der EP 717175 wird eine Anordnung zum Fördern und Kühlen des Schmieröls von Verbrennungsmotoren offenbart.In the EP 717175 an arrangement for conveying and cooling the lubricating oil of internal combustion engines is disclosed.

In der US 8136488 B2 ist ein Kühlsystem eines Fahrzeugs dargestellt.In the US8136488B2 a cooling system of a vehicle is shown.

Weiter offenbart die EP 2154341 B1 eine Ölwanne für eine Brennkraftmaschine.Next revealed the EP 2154341 B1 an oil pan for an internal combustion engine.

EP 1 806 483 B1 beschreibt eine Ölpfanne, die eine erste Kammer, die zu einem durch Öl geschmiertes Objekt hin offen ist, und eine zweite Kammer, die benachbart zur ersten Kammer ist, aufweist. Zwischen den Kammern ist eine Trennwand vorgesehen. In der Trennwand ist eine Kommunikationsöffnung angeordnet, die durch ein Deckelelement verschließbar ist. EP 1 806 483 B1 describes an oil pan having a first chamber open to an object lubricated by oil and a second chamber adjacent to the first chamber. A partition wall is provided between the chambers. A communication opening, which can be closed by a cover element, is arranged in the partition wall.

Eine große Ölwanne mit einem großen Ölvolumen, insbesondere eine massive Gussölwanne, verhindert ein schnelles Aufheizen des Ölkreislaufes.A large oil pan with a large oil volume, especially a solid cast oil pan, prevents the oil circuit from heating up quickly.

Dies ist jedoch zur Reibleistungsminimierung und zur Senkung der Emissionen des Motors in der Warmlaufphase notwendig.However, this is necessary to minimize friction loss and to reduce emissions from the engine in the warm-up phase.

Aufgabe der vorliegenden Erfindung ist es, eine Vorrichtung zu entwickeln, die ein schnelleres Aufheizen des Schmierölkreislaufes in der Warmlaufphase des Motors ermöglicht.The object of the present invention is to develop a device that enables faster heating of the lubricating oil circuit in the warm-up phase of the engine.

Die Aufgabe wird durch eine Ölwanne mit den Merkmalen des Anspruchs 1 gelöst. Ausführungsbeispiele ergeben sich aus den abhängigen Ansprüchen.The object is achieved by an oil pan with the features of claim 1. Exemplary embodiments result from the dependent claims.

Die neue Lösung besteht aus einer Vorrichtung in der Ölwanne, die es ermöglicht, den Schmierölkreislauf in der Warmlaufphase zu zentralisieren, so dass sich nur eine kleine Ölmenge im Umlauf befindet, die schnell erwärmt werden kann und von der kalten Ölmenge in der Ölwanne und deren negativer Wärmekapazität thermisch getrennt ist. Sobald die optimale Betriebstemperatur in diesem kleinen Kreislauf überschritten ist, wird automatisch durch ein Ventilsystem das umgebende, kalte Schmieröl, welches sich in der umgebenden Ölwanne befindet, in den Ölkreislauf eingebunden.The new solution consists of a device in the sump that allows the lubricating oil circuit to be centralized during the warm-up phase, so that there is only a small quantity of oil in circulation, which can be heated quickly and from the quantity of cold oil in the sump and its more negative Heat capacity is thermally separated. As soon as the optimal operating temperature in this small circuit is exceeded, the surrounding, cold lubricating oil, which is located in the surrounding oil pan, is automatically integrated into the oil circuit by a valve system.

Hierbei ist von Vorteil, dass ein deutlich schnelleres, ölseitiges Aufwärmen des Motors möglich ist. Eine deutliche Reibleistungsreduzierung und somit eine signifikante Kraftstoffeinsparung in der Warmlaufphase des Motors erfolgt.The advantage here is that the engine can be warmed up much more quickly on the oil side. There is a significant reduction in friction and thus significant fuel savings in the warm-up phase of the engine.

Kolben und Zylinderrohre werden schneller mit warmem Öl beaufschlagt, die motorische Verbrennung kann schneller den Auslegungspunkt erreichen und somit geringere Emissionen in der Kaltlaufphase erzeugen. Die Erwärmung des Schmierölkreislaufs kann vom Wasserkreislauf entkoppelt werden, was zu einer weiteren Reibleistungsreduzierung bei einer Umgehung des Ölkühlers in der Warmlaufphase des Motors führt. Ein schnelleres Aufheizen des Motors führt zu einer deutlichen Verschleißreduzierung in der Warmlaufphase des Motors.Pistons and cylinder tubes are charged with warm oil more quickly, the engine combustion can reach the design point more quickly and thus generate lower emissions in the cold-running phase. The heating of the lubricating oil circuit can be decoupled from the water circuit, which leads to a further reduction in friction when the oil cooler is bypassed in the warm-up phase of the engine. Faster heating of the engine leads to a significant reduction in wear during the warm-up phase of the engine.

Weitere erfindungsgemäße Vorteile sind den Unteransprüchen zu entnehmen.Further advantages according to the invention can be found in the dependent claims.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung des Ausführungsbeispiels.Further features and advantages of the invention result from the following description of the exemplary embodiment.

Figur 1 zeigt eine Ölwanne mit Zusatzbehälter. figure 1 shows an oil pan with an additional container.

In Figur 1 wird die Ölwanne 1 mit einem zentralen, mit geringem Volumen ausgelegten Zusatzölbehälter 2 ausgerüstet, der zur Versorgung der motorseitigen Schmierölpumpe mit einem Ansaugstutzen 3 ausgerüstet ist und der über ein Ventilsystem 4, 5 mit der ihn umgebenden Hauptölwanne in Abhängigkeit von der vorliegenden Schmieröltemperatur durch einen Aktuator 6 gekoppelt oder entkoppelt werden kann. Dieser Zusatzbehälter 2 kann zusätzlich zur umgebenden Ölwanne noch thermisch isoliert ausgeführt sein, damit der Aufheizvorgang schneller realisiert wird. Der Zusatzölbehälter wird bei kaltem Motor mit angewärmtem, aus dem Kurbelgehäuse abtropfendem Öl über das Ölauffangblech 8 gefüllt. Bei Erreichen der Betriebstemperatur wird durch den Aktuator 6 der Zusatzölbehälter 2 mit dem Restvolumen der Hauptölwanne 1 durch das Ventil 5 verbunden. Gleichzeitig wird durch das Ventil 4 das Ölauffangblech vom Zusatzölbehälter 2 entkoppelt, so dass sich das aus dem Kurbelgehäuseraum abtropfende warme Schmieröl in die Hauptölwanne 1 ergießt. Der Aktuator 6 kann elektromechanisch, elektrohydraulisch, elektromagnetisch, hydraulisch, pneumatisch, mechanisch oder thermisch über eine Wachspatrone oder Formgedächtnisfeder bzw. eine Bimetallfeder angesteuert werden.In figure 1 the oil pan 1 is equipped with a central, low-volume additional oil reservoir 2, which is equipped with an intake port 3 to supply the engine-side lubricating oil pump and which is connected via a valve system 4, 5 to the main oil pan surrounding it, depending on the lubricating oil temperature by an actuator 6 can be coupled or decoupled. In addition to the surrounding oil pan, this additional container 2 can also be thermally insulated so that the heating process is implemented more quickly. When the engine is cold, the additional oil tank is filled with warmed oil dripping from the crankcase via the oil drip tray 8. When the operating temperature is reached, the additional oil tank 2 is connected to the residual volume of the main oil pan 1 by the valve 5 by the actuator 6 . Simultaneously the oil collecting plate is decoupled from the additional oil tank 2 by the valve 4, so that the warm lubricating oil dripping from the crankcase chamber pours into the main oil pan 1. The actuator 6 can be controlled electromechanically, electrohydraulically, electromagnetically, hydraulically, pneumatically, mechanically or thermally via a wax cartridge or shape memory spring or a bimetallic spring.

(Die Ansteuerung des Aktuators kann sowohl mit einem Steuergerät erfolgen, als auch selbstregelnd (z. B.: Formgedächtnisfeder) sein.) Das Ventil des Ventilsystems 4 ist für die Funktion der Apparatur nicht zwangsläufig notwendig, wenn die Kühlwirkung bei Heißbetrieb, die durch eine Isolation des Zusatzölbehälters 2 eingeschränkt ist, ausreichend ist.(The actuator can be controlled with a control unit or be self-regulating (e.g.: shape memory spring).) The valve of the valve system 4 is not absolutely necessary for the function of the apparatus if the cooling effect during hot operation, which is caused by a Insulation of the additional oil tank 2 is restricted, is sufficient.

Für den Fall der Erstbefüllung des Motors mit Schmieröl, oder bei einem Ölwechsel, wird die Befüllung des Zusatzölbehälters 2 durch ein selbsttätig wirkendes Füllstandsventil 7 sichergestellt, welches den Zusatzölbehälter 2 im gefüllten Zustand von der Hauptölwanne 1 entkoppelt. Außerdem kann dieses Füllstandsventil 7 als Sicherheitsventil fungieren, falls es zu einer Fehlfunktion des Aktuators 6 oder der Ventile des Ventilsystems 4, 5 kommt, so dass ein Motorschaden aufgrund eine Fehlfunktion sicher ausgeschlossen werden kann.When the engine is first filled with lubricating oil or when the oil is changed, the additional oil tank 2 is filled by an automatically acting fill level valve 7, which decouples the additional oil tank 2 from the main oil pan 1 when it is full. In addition, this filling level valve 7 can function as a safety valve in the event of a malfunction of the actuator 6 or the valves of the valve system 4, 5, so that engine damage due to a malfunction can be reliably ruled out.

BezugszeichenlisteReference List

11
Ölwanne / HauptölwanneOil pan / main oil pan
22
Zusatzölbehälterauxiliary oil reservoir
33
Ansaugstutzenintake manifold
44
Ventilsystemvalve system
55
Ventilsystemvalve system
66
Aktuatoractuator
77
Füllstandsventillevel valve
88th
Ölauffangblechoil pan

Claims (6)

  1. Sump for an internal combustion engine, having a main sump and at least one additional oil container (2), wherein the additional oil container (2) has at least one valve system (4, 5) which communicates with the main sump (1),
    wherein the valve system (4, 5) has at least one actuator (6), which moves the valve system (4, 5) as a function of the oil temperature in such a way that when an operating temperature is reached, the additional oil container (2) is connected to the main sump (1),
    characterized in that at least one oil collecting plate (8) is arranged above the additional oil container (2), and in that the actuator (6) further moves the valve system (4, 5) as a function of the oil temperature in such a way that when the operating temperature is reached, the oil collecting plate (8) is uncoupled from the additional oil container (2).
  2. Sump for an internal combustion engine according to Claim 1,
    characterized in that the additional oil container (2) is arranged substantially in the sump (1).
  3. Sump for an internal combustion engine according to one or more of the preceding claims,
    characterized in that the additional container (2) is thermally insulated with respect to the surrounding sump.
  4. Sump for an internal combustion engine according to one or more of the preceding claims,
    characterized in that the additional oil container (2) has at least one intake connector (3) used to supply the lubricating oil pump.
  5. Sump for an internal combustion engine according to one or more of the preceding claims,
    characterized in that the additional oil container (2) has at least one filling level valve (7) communicating with the sump (1).
  6. Sump for an internal combustion engine according to one or more of the preceding claims, characterized in that the actuator (6) is actuated electromechanically, electrohydraulically, electromagnetically, hydraulically, pneumatically, mechanically or thermally via, for example, a wax cartridge or a shape-memory spring or a bimetal spring.
EP18000200.8A 2017-03-24 2018-03-01 Device for optimising the lubricating oil side heating behaviour of a combustion engine and method for operating a combustion engine Active EP3379045B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017002840.0A DE102017002840A1 (en) 2017-03-24 2017-03-24 Device for optimizing the lubricating oil side heating behavior of an internal combustion engine and method for operating an internal combustion engine

Publications (2)

Publication Number Publication Date
EP3379045A1 EP3379045A1 (en) 2018-09-26
EP3379045B1 true EP3379045B1 (en) 2023-05-10

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Application Number Title Priority Date Filing Date
EP18000200.8A Active EP3379045B1 (en) 2017-03-24 2018-03-01 Device for optimising the lubricating oil side heating behaviour of a combustion engine and method for operating a combustion engine

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DE (1) DE102017002840A1 (en)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1034401B (en) 1954-09-30 1958-07-17 Eberhardt Geb Trenching machine
DE2817743C2 (en) * 1978-04-22 1986-04-30 Audi AG, 8070 Ingolstadt Device for regulating the lubricating oil temperature of an internal combustion engine with an oil container
DE3235292C2 (en) * 1982-09-23 1986-01-09 Waldemar 8700 Würzburg Gontscharow Internal combustion engine for a motor vehicle
DE4444276A1 (en) 1994-12-13 1996-06-20 Jenbacher Energiesysteme Ag Arrangement for conveying and cooling the lubricating oil of internal combustion engines
DE10245357B4 (en) * 2002-09-27 2013-11-14 Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr Method and device for controlling the temperature of engine oil
US8066100B2 (en) * 2004-10-05 2011-11-29 Toyota Jidosha Kabushiki Kaisha Oil pan and lubricating device
DE102006020951A1 (en) 2005-07-28 2007-02-01 Audi Ag Cooling system for a vehicle and method for operating a cooling system
DE102006032794A1 (en) 2006-07-14 2008-01-17 Dr.Ing.H.C. F. Porsche Ag Oil catcher for an internal combustion engine
DE102007024129A1 (en) 2007-05-24 2008-12-04 Continental Automotive Gmbh Method and apparatus for oil circulation management in an internal combustion engine
DE202008010865U1 (en) 2008-08-14 2010-01-07 Mann+Hummel Gmbh oil pan
JP5983344B2 (en) * 2012-11-20 2016-08-31 トヨタ自動車株式会社 VEHICLE CONTROL DEVICE AND VEHICLE HAVING THE SAME

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Publication number Publication date
DE102017002840A1 (en) 2018-09-27
EP3379045A1 (en) 2018-09-26

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