EP4115061A1 - Engine with cylinder crankcase and oil return collecting channel and oil drain - Google Patents

Engine with cylinder crankcase and oil return collecting channel and oil drain

Info

Publication number
EP4115061A1
EP4115061A1 EP21711177.2A EP21711177A EP4115061A1 EP 4115061 A1 EP4115061 A1 EP 4115061A1 EP 21711177 A EP21711177 A EP 21711177A EP 4115061 A1 EP4115061 A1 EP 4115061A1
Authority
EP
European Patent Office
Prior art keywords
oil
cylinder
collecting channel
crankcase
internal combustion
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.)
Granted
Application number
EP21711177.2A
Other languages
German (de)
French (fr)
Other versions
EP4115061B1 (en
Inventor
Marco Sliwa
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
Original Assignee
Deutz AG
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 Deutz AG filed Critical Deutz AG
Publication of EP4115061A1 publication Critical patent/EP4115061A1/en
Application granted granted Critical
Publication of EP4115061B1 publication Critical patent/EP4115061B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F01M11/02—Arrangements of lubricant conduits
    • 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
    • F01M13/00—Crankcase ventilating or breathing
    • F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
    • 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
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • 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
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/02—Arrangements of lubricant conduits
    • F01M2011/023—Arrangements of lubricant conduits between oil sump and cylinder head
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/0002—Cylinder arrangements
    • F02F7/0007—Crankcases of engines with cylinders in line

Definitions

  • the invention relates to an engine with a cylinder crankcase and an oil return collecting channel and oil descents.
  • DE 102015101410 A1 discloses an internal combustion engine with a cylinder crankcase, an oil pan which is filled with oil to an oil level during operation, an oil pan upper part with at least one passage opening and at least one oil channel, which is used to return oil, in particular from the oil separation the oil pan serving oil return is assigned, known.
  • DE 100 26 113 B4 shows an internal combustion engine with an oil sump upper part which is arranged between a crankcase and an oil sump and which is held between a cylinder crankcase and an adjoining part of an oil sump.
  • An oil channel runs in such a way that the oil returned from the cylinder head is directed into the oil pan below the oil level.
  • From DE 19754008 C2 is a reciprocating internal combustion engine with a cylinder head receiving valves as gas exchange control elements and a crankcase receiving a crankshaft, in which the cylinder head and the crankcase consisting of an upper crankcase part and a lower crankcase part are braced against each other via tie rods that are in the lower, the The area of the cylinder head facing the crankcase is anchored and in the area of the crankcase lower part are braced against bearing seats forming the crankshaft, the crankcase lower part being double-walled and a bearing Has crankcase base surrounding chairs, to which an outer crankcase base is arranged at a distance and that the crankcase base is drawn in against the crankcase base in the area of the bores for the tie rods penetrating through the bearing chairs, in such a way that the screw elements associated with the tie rods lie in pocket-shaped recessed receptacles, which are limited by the bearing seats are known.
  • an oil gallery is arranged in the area of the cylinder head of the head-block unit, from which a supply bore leads to a lubricant supply channel to the bearing bush of the shaft of the exhaust gas turbocharger.
  • a lubricant supply channel In the flange of the exhaust gas turbocharger there is an overflow opening for the oil return and the sealing air discharge, which opens into the lubricant return channel.
  • the lubricant return channel which can optionally be drilled and closed by a screw plug or a core hole closure, leads back into the oil pan via the vertical part of the return line.
  • This variant has the disadvantage that the structure of the cylinder head is weakened in the area where the oil of two or more cylinders is brought together.
  • the disadvantage here is that the individual oil descents in the cylinder crankcase take up a lot of space or the structure is weakened.
  • the object of the invention is to avoid the above-mentioned disadvantages and to create a compact and stable motor.
  • FIG. 1 shows an internal combustion engine according to the invention with a view of the crankcase, which is open at the top.
  • the present design shows many functions in a small installation space, which at the same time does not weaken the structure of the cylinder head.
  • the pressureless oil (4) is transferred from the cylinder head for each cylinder (5) to the cylinder crankcase (1) in such a way that there is an oil return collecting channel (2 ) is passed.
  • An oil return gutter (2) is cast or machined into the cylinder crankcase (1).
  • the oil return collecting channel (2) brings together the unpressurized oil from the individual cylinder areas of the cylinder head, collects it and routes it to cast or mechanically processed oil descents (3), which are arranged vertically in the area of the first and last cylinder, in the direction of the oil continue tub.
  • space is created below the oil return collecting channel (2) for water channels and modules to be arranged further, such as cooling cassettes or the like, for example.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

The invention relates to an internal combustion engine, in particular a diesel internal combustion engine with a cylinder crankcase (1), at least one oil return collecting channel (2), at least one oil drain (3), in which oil (4) flows, in a pressure free manner, in the direction of the oil pan, following gravity, and at least one cylinder (5).

Description

Motor mit Zylinderkurbelgehäuse und Ölrücklaufsammelrinne und Engine with cylinder crankcase and oil return collecting channel and
Ölabstiegen Oil descents
B E S C H R E I B U N G DESCRIPTION
Die Erfindung betrifft einen Motor mit Zylinderkurbelgehäuse und Ölrücklaufsammelrinne und Ölabstiegen. The invention relates to an engine with a cylinder crankcase and an oil return collecting channel and oil descents.
Aus der DE 102015101410 A1 ist eine Brennkraftmaschine mit einem Zylinderkurbelgehäuse, einer Ölwanne, welche im Betrieb bis zu einem Öl niveau mit Öl gefüllt ist, einem Ölwannenoberteil mit zumindest einer Durchlassöffnung und einem zumindest einen Ölkanal aufweisenden, der Rückführung von Öl insbesondere aus der Ölabscheidung in die Ölwanne dienenden Ölrücklauf zugeordnet ist, bekannt. DE 102015101410 A1 discloses an internal combustion engine with a cylinder crankcase, an oil pan which is filled with oil to an oil level during operation, an oil pan upper part with at least one passage opening and at least one oil channel, which is used to return oil, in particular from the oil separation the oil pan serving oil return is assigned, known.
Die DE 100 26 113 B4 zeigt eine Brennkraftmaschine mit einem zwischen einem Kurbelraum und einer Ölwanne angeordneten Ölwannenoberteil, welches zwischen einem Zylinderkurbelgehäuse und einem daran anschließenden Teil einer Ölwanne gehalten ist. Ein Ölkanal verläuft derart, dass das vom Zylinderkopf rückgeführte Öl bis unterhalb des Ölniveaus in die Ölwanne geleitet wird. DE 100 26 113 B4 shows an internal combustion engine with an oil sump upper part which is arranged between a crankcase and an oil sump and which is held between a cylinder crankcase and an adjoining part of an oil sump. An oil channel runs in such a way that the oil returned from the cylinder head is directed into the oil pan below the oil level.
Aus der DE 19754008 C2 ist eine Hubkolbenbrennkraftmaschine mit einem als Gaswechselsteuerelemente Ventile aufnehmendem Zylinderkopf und einem eine Kurbelwelle aufnehmenden Kurbelgehäuse, bei der der Zylin derkopf und das aus einem Kurbelgehäuseoberteil und einem Kurbelgehäuseunterteil bestehende Kurbelgehäuse durchgehend über Zuganker gegeneinander verspannt sind, die in dem unteren, dem Kurbelgehäuse zugewandten Bereich des Zylinderkopfes verankert und im Bereich des Kurbelgehäuseunterteiles gegen Lageraufnahmen der Kurbelwelle bildende Lagerstühle verspannt sind, wobei das Kurbelgehäuseunterteil doppelwan dig ausgebildet ist und zur Begrenzung der Kurbelwanne einen die Lager- Stühle umschließenden Kurbelwannenboden aufweist, zu dem ein äußerer Kurbelgehäuseboden beabstandet angeordnet ist und dass der Kurbelge häuseboden im Bereich von die Lagerstühle durchsetzenden Bohrungen für die Zuganker gegen den Kurbelwannenboden eingezogen ist, derart, dass die den Zugankern zugehörigen Schraubelemente in taschenförmig einge- zogenen Aufnahmen liegen, die durch die Lagerstühle begrenzt sind, bekannt. From DE 19754008 C2 is a reciprocating internal combustion engine with a cylinder head receiving valves as gas exchange control elements and a crankcase receiving a crankshaft, in which the cylinder head and the crankcase consisting of an upper crankcase part and a lower crankcase part are braced against each other via tie rods that are in the lower, the The area of the cylinder head facing the crankcase is anchored and in the area of the crankcase lower part are braced against bearing seats forming the crankshaft, the crankcase lower part being double-walled and a bearing Has crankcase base surrounding chairs, to which an outer crankcase base is arranged at a distance and that the crankcase base is drawn in against the crankcase base in the area of the bores for the tie rods penetrating through the bearing chairs, in such a way that the screw elements associated with the tie rods lie in pocket-shaped recessed receptacles, which are limited by the bearing seats are known.
In der WO 2012175275 A1 ist im Bereich des Zylinderkopfes der Kopf- Block-Einheit eine Ölgalerie angeordnet, von welcher eine Versorgungs bohrung zu einem Schmiermittelzuführkanal zur Lagerbüchse der Welle des Abgasturboladers führt. Im Flansch des Abgasturboladers ist eine Übertrittsöffnung für den Ölrücklauf und die Sperrluftabführung angeordnet, welche in den Schmiermittelrücklaufkanal mündet. Der Schmiermittel rücklaufkanal, der gegebenenfalls gebohrt und durch eine Verschluss schraube oder einen Kernlochverschluss verschlossen sein kann, führt über den vertikalen Teil der Rücklaufleitung zurück in die Ölwanne. In WO 2012175275 A1, an oil gallery is arranged in the area of the cylinder head of the head-block unit, from which a supply bore leads to a lubricant supply channel to the bearing bush of the shaft of the exhaust gas turbocharger. In the flange of the exhaust gas turbocharger there is an overflow opening for the oil return and the sealing air discharge, which opens into the lubricant return channel. The lubricant return channel, which can optionally be drilled and closed by a screw plug or a core hole closure, leads back into the oil pan via the vertical part of the return line.
Bei der Entwicklung von Motoren wird sehr starker Wert auf die Kompaktheit gelegt. Entscheidend ist, möglichst viele Funktionen auf kleinem Bau raum darzustellen. Heutige Konstruktionen zeigen Zylinderkurbelgehäuse mit einzelnen Ölabstiegen je Zylinder, welche das drucklose Öl in dem Motorblock und später in die Ölwanne zurückfließen lassen. When developing engines, great importance is attached to compactness. It is crucial to display as many functions as possible in a small installation space. Current designs show cylinder crankcases with individual oil descents per cylinder, which allow the pressureless oil to flow back into the engine block and later into the oil pan.
Eine Alternative könnten weniger Ölabstiege und eine Zusammenfassung von drucklosen Ölvorkommen im Zylinderkopf sein. Diese Variante hat den Nachteil, dass der Zylinderkopf im Bereich der Zusammenführung des Öls von zwei oder mehreren Zylindern in seiner Struktur geschwächt wird. An alternative could be fewer oil drops and a combination of pressureless oil deposits in the cylinder head. This variant has the disadvantage that the structure of the cylinder head is weakened in the area where the oil of two or more cylinders is brought together.
Hierbei ist von Nachteil, dass die einzelnen Ölabstiege im Zylinderkurbelgehäuse sehr viel Platz in Anspruch nehmen oder die Struktur geschwächt wird. Aufgabe der Erfindung ist es, die oben genannten Nachteile zu vermeiden und einen kompakten und stabilen Motor zu schaffen. The disadvantage here is that the individual oil descents in the cylinder crankcase take up a lot of space or the structure is weakened. The object of the invention is to avoid the above-mentioned disadvantages and to create a compact and stable motor.
Gelöst wird die vorliegende Aufgabe durch einen Motor nach Anspruch 1. Die Erfindung wird nachfolgend anhand der Figur näher erläutert. Es zeigt: The present object is achieved by a motor according to claim 1. The invention is explained in more detail below with reference to the figure. It shows:
Fig. 1 eine erfindungsgemäße Brennkraftmaschine mit Blick auf das oben offene Kurbelgehäuse. 1 shows an internal combustion engine according to the invention with a view of the crankcase, which is open at the top.
Die vorliegende Konstruktion zeigt auf kleinem Bauraum viele Funktionen, die gleichzeitig die Struktur des Zylinderkopfes nicht schwächt. In der in Fig. 1 dargestellten Lösung wird das drucklose Öl (4) vom Zylinderkopf je Zylinder (5) an das Zylinderkurbelgehäuse (1) so übergeben, dass es sich in der horizontal im Bereich der Trennebene zwischen Kopf und Block angeordneten einen Ölrücklaufsammelrinne (2) übergeben wird. Somit ist die Konstruktion einer sauberen Struktur im Zylinderkopf ohne Einschränkungen möglich. In das Zylinderkurbelgehäuse (1) wird eine Ölrücklauf sammelrinne (2) eingegossen oder mechanisch bearbeitet. Die Ölrücklauf sammelrinne (2) führt das drucklose Öl aus den einzelnen Zylinderbereichen des Zylinderkopfes zusammen, sammelt es und leitet diese an gegos sene oder mechanisch bearbeitete Ölabstiege (3), die im Bereich des ersten und letzten Zylinders vertikal angeordnet sind, in Richtung der Öl wanne weiter. Hierdurch wird unterhalb der Ölrücklaufsammelrinne (2) Platz für Wasserkanäle und weiter anzuordnende Module, wie beispielsweise Kühlkassetten oder Ähnliches geschaffen. Bezugszeichenliste The present design shows many functions in a small installation space, which at the same time does not weaken the structure of the cylinder head. In the solution shown in Fig. 1, the pressureless oil (4) is transferred from the cylinder head for each cylinder (5) to the cylinder crankcase (1) in such a way that there is an oil return collecting channel (2 ) is passed. Thus, the construction of a clean structure in the cylinder head is possible without restrictions. An oil return gutter (2) is cast or machined into the cylinder crankcase (1). The oil return collecting channel (2) brings together the unpressurized oil from the individual cylinder areas of the cylinder head, collects it and routes it to cast or mechanically processed oil descents (3), which are arranged vertically in the area of the first and last cylinder, in the direction of the oil continue tub. As a result, space is created below the oil return collecting channel (2) for water channels and modules to be arranged further, such as cooling cassettes or the like, for example. List of reference symbols
1 Zylinderkurbelgehäuse1 cylinder crankcase
2 Ölrücklaufsammelrinne 3 Ölabstieg 2 Oil return collecting channel 3 Oil descent
4 druckloses Öl 4 pressureless oil
5 Zylinder 5 cylinders

Claims

A N S P R Ü C H E EXPECTATIONS
1. Brennkraftmaschine, insbesondere Dieselbrennkraftmaschine mit Zylinderkurbelgehäuse (1), wenigstens einer Ölrücklaufsammelrinne (2), wenigstens einem Ölabstieg (3), in dem druckloses Öl (4) in Richtung der Ölwan ne, der Schwerkraft folgend, abfließt sowie wenigstens einen Zylinder (5). 1. Internal combustion engine, in particular diesel internal combustion engine with cylinder crankcase (1), at least one oil return collecting channel (2), at least one oil descent (3) in which unpressurized oil (4) flows off in the direction of the oil pan, following gravity, and at least one cylinder (5 ).
2. Brennkraftmaschine nach Anspruch 1, dadurch gekennzeichnet, dass die Ölrücklaufsammelrinne (2) im Wesentlichen horizontal angeordnet ist. 2. Internal combustion engine according to claim 1, characterized in that the oil return collecting channel (2) is arranged essentially horizontally.
3. Brennkraftmaschine nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Ölrücklaufsammelrinne (2) im Wesentlichen im Bereich der Trennungsebene von Zylinderkurbelgehäuse (1) und Zylinderkopf angeordnet ist. 3. Internal combustion engine according to claim 1 or 2, characterized in that the oil return collecting channel (2) is arranged essentially in the region of the plane of separation of the cylinder crankcase (1) and the cylinder head.
4. Brennkraftmaschine nach Anspruch 1 , 2 oder 3, dadurch gekennzeichnet, dass die Ölrücklaufsammelrinne (2) im Wesent lichen im Bereich der Trennungsebene von Zylinderkurbelgehäuse (1) und Zylinderkopf angeordnet ist und sich vom ersten bis zum letzten Zylinder (5) erstreckt. 4. Internal combustion engine according to claim 1, 2 or 3, characterized in that the oil return collecting channel (2) is arranged essentially union in the region of the plane of separation of the cylinder crankcase (1) and cylinder head and extends from the first to the last cylinder (5).
5. Brennkraftmaschine nach einem oder mehreren der vorgenannten Ansprüche, dadurch gekennzeichnet, dass im Bereich des ersten und des letzten Zy linders (5) je ein vertikal angeordneter Ölabstieg (3) existiert. 5. Internal combustion engine according to one or more of the preceding claims, characterized in that there is a vertically arranged oil descent (3) in the region of the first and last Zy cylinder (5).
EP21711177.2A 2020-03-02 2021-02-25 Engine with cylinder crankcase and oil return collecting channel and oil drain Active EP4115061B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020001339.2A DE102020001339A1 (en) 2020-03-02 2020-03-02 Engine with cylinder crankcase and oil return collecting channel and oil drainage
PCT/EP2021/000021 WO2021175485A1 (en) 2020-03-02 2021-02-25 Engine with cylinder crankcase and oil return collecting channel and oil drain

Publications (2)

Publication Number Publication Date
EP4115061A1 true EP4115061A1 (en) 2023-01-11
EP4115061B1 EP4115061B1 (en) 2024-01-10

Family

ID=74870791

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21711177.2A Active EP4115061B1 (en) 2020-03-02 2021-02-25 Engine with cylinder crankcase and oil return collecting channel and oil drain

Country Status (6)

Country Link
US (1) US11808185B2 (en)
EP (1) EP4115061B1 (en)
CN (1) CN115244281A (en)
DE (1) DE102020001339A1 (en)
ES (1) ES2976060T3 (en)
WO (1) WO2021175485A1 (en)

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JPH11200943A (en) * 1998-01-12 1999-07-27 Isuzu Motors Ltd Cylinder block structure
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JP4225327B2 (en) * 2006-07-11 2009-02-18 トヨタ自動車株式会社 Oil return structure for internal combustion engine
JP5175768B2 (en) * 2009-02-25 2013-04-03 本田技研工業株式会社 Cylinder head cooling oil passage for multi-cylinder engines
TW201132846A (en) * 2010-03-23 2011-10-01 Sanyang Industry Co Ltd Lubricant channel structure for engine
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Also Published As

Publication number Publication date
CN115244281A (en) 2022-10-25
US20230115612A1 (en) 2023-04-13
ES2976060T3 (en) 2024-07-22
WO2021175485A1 (en) 2021-09-10
US11808185B2 (en) 2023-11-07
EP4115061B1 (en) 2024-01-10
DE102020001339A1 (en) 2021-09-02

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