EP3242009B1 - Internal combustion engine comprising a cylinder crankcase and a connection housing - Google Patents

Internal combustion engine comprising a cylinder crankcase and a connection housing Download PDF

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Publication number
EP3242009B1
EP3242009B1 EP17000589.6A EP17000589A EP3242009B1 EP 3242009 B1 EP3242009 B1 EP 3242009B1 EP 17000589 A EP17000589 A EP 17000589A EP 3242009 B1 EP3242009 B1 EP 3242009B1
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EP
European Patent Office
Prior art keywords
crankcase
internal combustion
combustion engine
cover
gear case
Prior art date
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Application number
EP17000589.6A
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German (de)
French (fr)
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EP3242009A1 (en
Inventor
Marco Sliwa
Thomas Werner
Werner Lemme
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Deutz AG
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Deutz AG
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Application filed by Deutz AG filed Critical Deutz AG
Priority to PL17000589T priority Critical patent/PL3242009T3/en
Publication of EP3242009A1 publication Critical patent/EP3242009A1/en
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Publication of EP3242009B1 publication Critical patent/EP3242009B1/en
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Classifications

    • 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
    • F02F11/00—Arrangements of sealings in combustion engines 
    • F02F11/002—Arrangements of sealings in combustion engines  involving cylinder heads
    • 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
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • F02F1/4264—Shape or arrangement of intake or exhaust channels in cylinder heads of exhaust channels
    • 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
    • F02F11/00—Arrangements of sealings in combustion engines 
    • 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
    • F02F7/0065—Shape of casings for other machine parts and purposes, e.g. utilisation purposes, safety
    • F02F7/0073—Adaptations for fitting the engine, e.g. front-plates or bell-housings
    • 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
    • F02F7/0065—Shape of casings for other machine parts and purposes, e.g. utilisation purposes, safety
    • F02F7/0073—Adaptations for fitting the engine, e.g. front-plates or bell-housings
    • F02F2007/0075—Front covers
    • 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
    • F02F7/0065—Shape of casings for other machine parts and purposes, e.g. utilisation purposes, safety
    • F02F7/0073—Adaptations for fitting the engine, e.g. front-plates or bell-housings
    • F02F2007/0078—Covers for belt transmissions

Definitions

  • the invention relates to an internal combustion engine with a cylinder crankcase and a connection housing.
  • crankcase for an internal combustion engine, in which the crankcase is cuboid with a rectangular cross-section, the base of the cuboid approximately corresponding to the lateral projection in the area of the cylinder heads, the crankcase has a chamber which extends from the longitudinal side of the crankcase into the interior of the Crankcase has and the chamber is formed from the two end walls, part of the base and a wall delimiting the crankshaft space.
  • the DE 102 20 838 C1 discloses an internal combustion engine with a crankcase, a crankshaft and a camshaft for controlling at least one inlet and outlet valve and an oil pump for delivering lubricating oil to the consumers, with an oil pressure control valve downstream of the oil pump to limit the oil pressure, the valve body of which is held in place by a spring element in Closing direction can be acted upon, the valve body releasing an opening depending on the oil flow rate and / or the oil temperature, which can be connected to the suction side of the oil pump, wherein the crankcase is provided with an inclined parting plane.
  • the DE 10 2013 020 944 A1 discloses a crankcase according to the preamble of claim 1.
  • the object of the invention is to develop it further.
  • crankcase for an internal combustion engine is created, with at least one oil pan flange and a one-piece crankshaft, with at least one end face of the crankcase, on which the wheel drive is arranged, for example, having a machining of the sealing surface towards the timing case cover, which in a Angle of about 4 ° to the vertical with respect to the oil pan flange surface is arranged.
  • the advantage here is that the overall length of the crankcase is reduced, which also has an impact on costs.
  • crankcase has a cover or a gear case that is releasably attached to the processing of the sealing surface for the gear case cover, which is arranged at an angle of about 4° to the vertical with respect to the oil pan flange surface.
  • the length of the motor is crucial in order to keep the devices in which this motor is to be installed compact.
  • a criterion for the engine length is the cylinder crankcase and the attachment of the oil pan or its sealing to the cylinder crankcase.
  • the gear drive is a co-determinant for the oil sump sealing surface and thus for the engine length.
  • the cylinder crankcase (1) has a sealed passage (2) for the gear wheel to the camshaft mounted in the cylinder head.
  • the other gears on the crankcase side are covered by a cover/gear case (3).
  • the oil pan seal is then made via the crankcase and the cover.
  • the seal-converted balcony to the cylinder head can be dispensed with by forming a cover/wheel case that seals both the cylinder head and the oil pan.
  • the tolerance problem that arises from this, namely the height of the cylinder crankcase must correspond to the height of this gear case, since on the other hand a sealing crack occurs on one of the two surfaces to be sealed, has not yet been solved.
  • crankshaft due to the surrounding edge of the cylinder block, is so short that it has to be equipped with extension components that bridge the passage through the cylinder block wall, in order to establish the connection with e.g. B. gears, flywheel and other attachments.
  • the present solution makes it possible to reduce the overall length of the engine without having to accept the disadvantages of the multi-part crankshaft.
  • This is achieved by machining the sealing surface for the timing case cover on the side of the cylinder crankcase on which the gear train is arranged, which is at an angle, e.g. B. 4 °, based on the perpendicular to the oil pan sealing surface, takes place that is chosen is that the passage 2 of the gear wheel required to the cylinder head remains sealed and the cylinder crankcase becomes steadily shorter towards the oil pan/oil pan sealing surface 4.
  • the sealing counter-contour 5 that is now locally missing on the oil pan is then formed by the gear case cover, which has the complementary angle to the surface of the cylinder crankcase .
  • the timing case cover is designed here in one piece 6 or in two pieces 7 with the connection housing.
  • the fastening screws and the centering of the connection housing/wheel housing are designed in such a way, advantageously parallel to the longitudinal axis of the crankshaft, that the housing is aligned with the center of the crankshaft.
  • a gradation of the screw-on slugs, which results from the machining bevel, is possible 8.
  • An alternative for the fastening screws is to design the centering hole parallel to the longitudinal axis of the crankshaft and the fastening screws perpendicular to the sealing surface.
  • a cylinder crankcase 1 with a passage for the gear wheel to the camshaft 2 is shown.
  • a in 1 The cover/gear case 3 (not shown) would rest against the machining of the sealing surface for the gear case cover 4 , with the gear case cover 3 (not shown) having a sealing counter-contour on the gear case cover 5 .
  • the timing case covers can be in one piece (6) or in two pieces (7).
  • the gradation of the screw-on slugs 8, resulting from the processing slope according to 1 results is in 2 shown.
  • the oil pan sealing surface 9 is arranged at the lower end of the crankcase 1 .
  • An exhaust gas recirculation (EGR) channel 10 is arranged in the upper area of the crankcase 1 .
  • EGR exhaust gas recirculation
  • EGR cooler mount 11 At the same level, to the left of EGR duct 10, is the EGR cooler mount 11. Below the EGR duct 10 and the EGR cooler mount 11 is the starter mount 12. According to the invention, it is located diagonally above the EGR duct on one end face of the Crankcase 1 a nose-like Accumulation of material in the area where the gear wheel passes through to the camshaft 13, which is adjacent to the cylinder head gasket surface 14.
  • the cover or gear box 3 shows a cylinder crankcase 1 with a passage for the gear wheel to the camshaft 2.
  • the cover or gear box 3 is located on the in 1 illustrated processing of the sealing surface to the timing case cover 4, wherein the timing case cover 3 has a sealing counter-contour on the timing case cover 5, which is in the Figures 6a and 6b to be shown.
  • the gear case cover can be in one piece 6 or in two pieces 7, which is also in the Figures 6a and 6b you can see.
  • the gradation of the screw-on slugs 8, resulting from the processing slope according to 1 results is in 2 shown and is used to connect the cylinder crankcase 1 and gear case cover 3.
  • the oil pan sealing surface 9 is arranged at the lower end of the crankcase 1.
  • An exhaust gas recirculation (EGR) channel 10 is arranged in the upper area of the crankcase 1 below the cylinder head gasket surface 14 .
  • EGR exhaust gas recirculation
  • the EGR cooler mount 11 At the same height, to the left of EGR channel 10 and below the cylinder head gasket surface 14, is the EGR cooler mount 11.
  • the starter mount 12 Below the EGR channel 10 and the EGR cooler mount 11 is the starter mount 12. Diagonally above the EGR channel on one On the front side of the crankcase 1 there is a nose-like accumulation of material in the area where the gear wheel passes through to the camshaft 13 , which adjoins the cylinder head gasket surface 14 .
  • Figure 4a 1 is a plan view of the crankcase 1 according to FIG 1 from below onto the split oil pan sealing surface 9 with the crankshaft 19 mounted (shrunk).
  • Figure 4b shows a plan view of the crankcase 1 according to FIG 1 from below onto the closed oil pan sealing surface 9 with a built (screwed) crankshaft 18 revealed.
  • figure 5 a represents a plan view of the crankcase according to FIG Figure 4a , b from below onto the oil pan sealing surface 9 with the mounted timing case cover 3, which is in two parts 7, and with a split oil pan flange.
  • Figure 5b Figure 1 shows a plan view of the crankcase according to Figure 4a , b from below onto the oil pan sealing surface 9 without the gear case cover 3 mounted and with the oil pan flange 9 closed.
  • the gear case cover 3 has a sealing counter-contour on the gear case cover 5, which is in the Figures 6a and 6b to be shown.
  • the timing case covers can be in one piece 6 or in two pieces 7 .

Description

Die Erfindung betrifft eine Brennkraftmaschine mit einem Zylinderkurbelgehäuse und einem Anschlussgehäuse.The invention relates to an internal combustion engine with a cylinder crankcase and a connection housing.

Aus der EP 1 006 273 A2 ist ein Kurbelgehäuse für eine Brennkraftmaschine offenbart, bei der das Kurbelgehäuse quaderförmig mit rechteckigem Querschnitt ausgeführt ist, hierbei die Grundseite des Quaders näherungsweise der seitlichen Ausladung im Bereich der Zylinderköpfe entspricht, das Kurbelgehäuse eine Kammer aufweist, diese von der Längsseite des Kurbelgehäuses in das Innere des Kurbelgehäuse weist und die Kammer aus den beiden Stirnwänden, einem Teil der Grundfläche und einer den Kurbelwellenraum begrenzenden Wand gebildet wird.From the EP 1 006 273 A2 discloses a crankcase for an internal combustion engine, in which the crankcase is cuboid with a rectangular cross-section, the base of the cuboid approximately corresponding to the lateral projection in the area of the cylinder heads, the crankcase has a chamber which extends from the longitudinal side of the crankcase into the interior of the Crankcase has and the chamber is formed from the two end walls, part of the base and a wall delimiting the crankshaft space.

Die DE 102 20 838 C1 offenbart eine Brennkraftmaschine mit einem Kurbelgehäuse, einer Kurbelwelle und einer Nockenwelle zur Steuerung mindestens eines Ein- und Auslassventils sowie einer Ölpumpe zur Förderung von Schmieröl zu den Verbrauchern, wobei ausgangsseitig der Ölpumpe zur Begrenzung des Öldrucks ein Öldruckregelventil nachgeschaltet ist, dessen Ventilkörper durch ein Federelement in Schließrichtung beaufschlagbar ist, wobei der Ventilkörper in Abhängigkeit von der Ölfördermenge und/oder der Öltemperatur eine Öffnung freigibt, die mit der Saugseite der Ölpumpe verbindbar ist, wobei das Kurbelgehäuse mit einer schrägen Teilungsebene versehen ist. Die DE 10 2013 020 944 A1 offenbart ein Kurbelgehäuse gemäss dem Oberbegriff des Anspruchs 1.the DE 102 20 838 C1 discloses an internal combustion engine with a crankcase, a crankshaft and a camshaft for controlling at least one inlet and outlet valve and an oil pump for delivering lubricating oil to the consumers, with an oil pressure control valve downstream of the oil pump to limit the oil pressure, the valve body of which is held in place by a spring element in Closing direction can be acted upon, the valve body releasing an opening depending on the oil flow rate and / or the oil temperature, which can be connected to the suction side of the oil pump, wherein the crankcase is provided with an inclined parting plane. the DE 10 2013 020 944 A1 discloses a crankcase according to the preamble of claim 1.

Ausgehend vom oben beschriebenen Stand der Technik liegt der Erfindung die Aufgabe zugrunde, diesen weiterzuentwickeln.Proceeding from the prior art described above, the object of the invention is to develop it further.

Die Aufgabe wird dadurch gelöst, dass ein Kurbelgehäuse für eine Brennkraftmaschine geschaffen wird, mit wenigstens einem Ölwannenflansch und einteiliger Kurbelwelle, wobei wenigstens eine Stirnseite des Kurbelgehäuses, an der beispielsweise der Rädertrieb angeordnet ist, eine Bearbeitung der Dichtfläche zum Räderkastendeckel hin aufweist, die in einem Winkel von etwa 4° zur Senkrechten bezüglich der Ölwannenflanschfläche angeordnet ist. Hierbei ist von Vorteil, dass sich die Länge des Kurbelgehäuses insgesamt verringert, was auch Auswirkungen auf die Kosten hat.The object is achieved in that a crankcase for an internal combustion engine is created, with at least one oil pan flange and a one-piece crankshaft, with at least one end face of the crankcase, on which the wheel drive is arranged, for example, having a machining of the sealing surface towards the timing case cover, which in a Angle of about 4 ° to the vertical with respect to the oil pan flange surface is arranged. The advantage here is that the overall length of the crankcase is reduced, which also has an impact on costs.

Weiter ist vorgesehen, dass das Kurbelgehäuse einen Deckel beziehungsweise einen Räderkasten aufweist, der auf der Bearbeitung der Dichtfläche zum Räderkastendeckel, die in einem Winkel von etwa 4° zur Senkrechten bezüglich der Ölwannenflanschfläche angeordnet ist, lösbar befestigt angeordnet ist.It is also provided that the crankcase has a cover or a gear case that is releasably attached to the processing of the sealing surface for the gear case cover, which is arranged at an angle of about 4° to the vertical with respect to the oil pan flange surface.

Andere erfindungsgemäße Ausgestaltungen ergeben sich aus den Unteransprüchen.Other configurations according to the invention result from the dependent claims.

In den Zeichnungen werden bevorzugte Ausführungsbeispiele dargestellt, es zeigen:

Fig. 1
eine Seitenansicht eines Kurbelgehäuses mit 4° Schräge für den Räderkasten
Fig. 2
Bearbeitung der Dichtfläche zum Räderkastendeckel samt Gewindebohrungen zur Aufnahme des SAE-Gehäuses
Fig. 3
Seitenansicht eines Kurbelgehäuses mit 4° Schräge mit Räderkasten gemäß Fig.1
Fig. 4a, b
Draufsicht auf das Kurbelgehäuse gemäß Fig. 1 von unten auf die Ölwannendichtungsfläche mit montierter Kurbelwelle
Fig. 5a, b
Draufsicht auf das Kurbelgehäuse gemäß Fig. 4 von unten auf die Ölwannendichtungsfläche mit montiertem Räderkastendeckel
Fig. 6a
einteiligen Räderkastendeckel
Fig. 6b
zweiteiligen Räderkastendeckel
Preferred exemplary embodiments are shown in the drawings, showing:
1
a side view of a crankcase with a 4° slant for the gear housing
2
Machining of the sealing surface for the timing case cover, including threaded holes for accommodating the SAE housing
3
Side view of a crankcase with a 4° slant with gear box according to Fig.1
Fig. 4a, b
Top view of the crankcase according to 1 from below onto the oil pan sealing surface with the crankshaft fitted
Fig. 5a, b
Top view of the crankcase according to 4 from below onto the oil sump sealing surface with mounted timing case cover
Figure 6a
one-piece timing case cover
Figure 6b
two-piece timing case cover

Bei der Entwicklung von Brennkraftmaschinen wird großer Wert auf die Kompaktheit dieser Motoren gelegt. Insbesondere die Länge des Motors ist entscheidend, um die Geräte, in die dieser Motor eingebaut werden soll, kompakt zu halten. Ein Kriterium für die Motorlänge ist das Zylinderkurbelgehäuse und die Anbringung der Ölwanne bzw. deren Abdichtung zum Zylinderkurbelgehäuse. Insbesondere bei Motoren mit oben liegender Nockenwelle und Antrieb dieser mittels Zahnräder ist mitbestimmend für die Ölwannendichtfläche und damit für die Motorlänge der Zahnradtrieb.When developing internal combustion engines, great importance is attached to the compactness of these engines. In particular, the length of the motor is crucial in order to keep the devices in which this motor is to be installed compact. A criterion for the engine length is the cylinder crankcase and the attachment of the oil pan or its sealing to the cylinder crankcase. Particularly in engines with an overhead camshaft and these being driven by gears, the gear drive is a co-determinant for the oil sump sealing surface and thus for the engine length.

Das Zylinderkurbelgehäuse (1) hat für das Zahnrad zur im Zylinderkopf gelagerten Nockenwelle einen abgedichteten Durchtritt (2). Die anderen kurbelgehäuseseitigen Zahnräder werden über einen Deckel/Räderkasten (3) abgedeckt. Die Ölwannendichtung erfolgt dann über das Kurbelgehäuse und den Deckel. Es gibt Lösungen, bei denen auf den dichtungsumbauten Balkon zum Zylinderkopf verzichtet werden kann, in dem man einen Deckel/Räderkasten ausbildet, der sowohl zum Zylinderkopf, als auch zur Ölwanne abdichtet. Das Toleranzproblem, das daraus entsteht, nämlich die Höhe des Zylinderkurbelgehäuses muss der Höhe dieses Räderkastens entsprechen, da andererseits ein Dichtsprung an einer der beiden abzudichtenden Flächen entsteht, ist bisher nicht gelöst. Es gibt Konstruktionen, die ein Kurbelgehäuse aufweist, das mit einem unten umlaufenden Rand versehen ist. Letztere Lösung baut sehr kurz, hat aber den Nachteil, dass die Kurbelwelle, bedingt durch den umlaufenden Rand des Zylinderkurbelgehäuses, so kurz baut, dass diese mit Verlängerungsbauteilen, die den Durchtritt durch die Zylinderkurbelgehäusewand überbrücken, bestückt werden muss, um die Verbindung mit z. B. Zahnräder, Schwungrad und weiteren Anbauteilen zu ermöglichen.The cylinder crankcase (1) has a sealed passage (2) for the gear wheel to the camshaft mounted in the cylinder head. The other gears on the crankcase side are covered by a cover/gear case (3). The oil pan seal is then made via the crankcase and the cover. There are solutions in which the seal-converted balcony to the cylinder head can be dispensed with by forming a cover/wheel case that seals both the cylinder head and the oil pan. The tolerance problem that arises from this, namely the height of the cylinder crankcase must correspond to the height of this gear case, since on the other hand a sealing crack occurs on one of the two surfaces to be sealed, has not yet been solved. There are constructions that have a crankcase that is provided with a peripheral rim at the bottom. The latter solution is very short, but has the disadvantage that the crankshaft, due to the surrounding edge of the cylinder block, is so short that it has to be equipped with extension components that bridge the passage through the cylinder block wall, in order to establish the connection with e.g. B. gears, flywheel and other attachments.

Die vorliegende Lösung ermöglicht es, die Baulänge des Motors zu verringern, ohne die Nachteile der mehrteiligen Kurbelwelle in Kauf nehmen zu müssen. Dies wird erreicht, indem an der Seite des Zylinderkurbelgehäuses, an der der Rädertrieb angeordnet ist, eine Bearbeitung der Dichtfläche zum Räderkastendeckel durchgeführt ist, die unter einem Winkel, z. B. 4°, bezogen auf die Senkrechte zur Ölwannendichtfläche, erfolgt, der so gewählt ist, dass der zum Zylinderkopf erforderliche Durchtritt 2 des Zahnrades abgedichtet bleibt und das Zylinderkurbelgehäuse zur Ölwanne/Ölwannendichtfläche hin stetig kürzer wird 4. Die jetzt an der Ölwanne örtlich fehlende Dichtgegenkontur 5 wird dann von dem Räderkastendeckel gebildet, der den Komplementärwinkel zur Fläche des Zylinderkurbelgehäuses aufweist. Der Räderkastendeckel ist hier einteilig 6 oder zweiteilig 7 mit dem Anschlussgehäuse ausgebildet. Die Befestigungsschrauben und die Zentrierungen des Anschlussgehäuses/Räderkasten sind so ausgebildet, vorteilhafterweise parallel zur Kurbelwellenlängsachse, dass die Fluchtung des Gehäuses zur Mitte Kurbelwelle gegeben ist. Eine Stufung der Anschraubbutzen, die sich aus der Bearbeitungsschräge ergibt, ist möglich 8. Eine Alternative der Befestigungsschrauben ist, die Zentrierbohrung parallel zur Kurbelwellenlängsachse auszubilden und die Befestigungsschrauben senkrecht zur Dichtfläche. Dadurch ist ebenso eine genaue Zentrierung möglich und beim Anschraubvorgang entsteht winkelbedingt keine Querkraft, die eine Verschiebung der Bauteile untereinander bewirken kann und somit die Genauigkeit Anschlussgehäuse zu Mitte Kurbelwelle negativ beeinflussen könnte.The present solution makes it possible to reduce the overall length of the engine without having to accept the disadvantages of the multi-part crankshaft. This is achieved by machining the sealing surface for the timing case cover on the side of the cylinder crankcase on which the gear train is arranged, which is at an angle, e.g. B. 4 °, based on the perpendicular to the oil pan sealing surface, takes place that is chosen is that the passage 2 of the gear wheel required to the cylinder head remains sealed and the cylinder crankcase becomes steadily shorter towards the oil pan/oil pan sealing surface 4. The sealing counter-contour 5 that is now locally missing on the oil pan is then formed by the gear case cover, which has the complementary angle to the surface of the cylinder crankcase . The timing case cover is designed here in one piece 6 or in two pieces 7 with the connection housing. The fastening screws and the centering of the connection housing/wheel housing are designed in such a way, advantageously parallel to the longitudinal axis of the crankshaft, that the housing is aligned with the center of the crankshaft. A gradation of the screw-on slugs, which results from the machining bevel, is possible 8. An alternative for the fastening screws is to design the centering hole parallel to the longitudinal axis of the crankshaft and the fastening screws perpendicular to the sealing surface. As a result, precise centering is also possible and during the screwing process there is no lateral force due to the angle, which can cause the components to shift among themselves and thus negatively affect the accuracy of the connection housing to the center of the crankshaft.

In Fig. 1 wird ein Zylinderkurbelgehäuse 1 mit einem Durchtritt für das Zahnrad zur Nockenwelle 2 dargestellt. Ein in Fig. 1 nicht dargestellter Deckel/Räderkasten 3 würde an der Bearbeitung der Dichtfläche zum Räderkastendeckel 4 anliegen, wobei der nicht dargestellte Räderkastendeckel 3 eine Dichtgegenkontur am Räderkastendeckel 5 aufweist. Die Räderkastendeckel können einteilig (6) oder zweiteilig (7) sein. Die Stufung der Anschraubbutzen 8, die sich aus der Bearbeitungsschräge gemäß Fig. 1 ergibt, ist in Fig. 2 dargestellt. Die Ölwannendichtungsfläche 9 ist am unteren Ende des Kurbelgehäuses 1 angeordnet. Im oberen Bereich des Kurbelgehäuses 1 ist ein Abgasrückführungs(AGR)-Kanal 10 angeordnet. Auf gleicher Höhe, links von AGR-Kanal 10 befindet sich die AGR-Kühleraufnahme 11. Unter dem AGR-Kanal 10 und der AGR-Kühleraufnahme 11 befindet sich die Anlasseraufnahme 12. Erfindungsgemäss befindet sich schäg oberhalb des AGR-Kanals an der einen Stirnseite des Kurbelgehäuses 1 eine nasenartige Materialansammlung im Bereich des Durchtritts des Zahnrads zur Nockenwelle 13, die an die Zylinderkopfdichtungsfläche 14 angrenzt.In 1 a cylinder crankcase 1 with a passage for the gear wheel to the camshaft 2 is shown. a in 1 The cover/gear case 3 (not shown) would rest against the machining of the sealing surface for the gear case cover 4 , with the gear case cover 3 (not shown) having a sealing counter-contour on the gear case cover 5 . The timing case covers can be in one piece (6) or in two pieces (7). The gradation of the screw-on slugs 8, resulting from the processing slope according to 1 results is in 2 shown. The oil pan sealing surface 9 is arranged at the lower end of the crankcase 1 . An exhaust gas recirculation (EGR) channel 10 is arranged in the upper area of the crankcase 1 . At the same level, to the left of EGR duct 10, is the EGR cooler mount 11. Below the EGR duct 10 and the EGR cooler mount 11 is the starter mount 12. According to the invention, it is located diagonally above the EGR duct on one end face of the Crankcase 1 a nose-like Accumulation of material in the area where the gear wheel passes through to the camshaft 13, which is adjacent to the cylinder head gasket surface 14.

Fig. 3 zeigt ein Zylinderkurbelgehäuse 1 mit einem Durchtritt für das Zahnrad zur Nockenwelle 2. Der Deckel bzw. Räderkasten 3 liegt an der in Fig. 1 dargestellten Bearbeitung der Dichtfläche zum Räderkastendeckel 4 an, wobei der Räderkastendeckel 3 eine Dichtgegenkontur am Räderkastendeckel 5 aufweist, die in den Fig. 6a und 6b gezeigt werden. Die Räderkastendeckel können einteilig 6 oder zweiteilig 7 sein, was ebenfalls in den Fig. 6a und 6b zu sehen ist. Die Stufung der Anschraubbutzen 8, die sich aus der Bearbeitungsschräge gemäß Fig. 1 ergibt, ist in Fig. 2 dargestellt und dient der Verbindung von Zylinderkurbelgehäuse 1 und Räderkastendeckel 3. Die Ölwannendichtungsfläche 9 ist am unteren Ende des Kurbelgehäuses 1 angeordnet. Im oberen Bereich des Kurbelgehäuses 1 ist ein Abgasrückführungs(AGR)-Kanal 10 unterhalb der Zylinderkopfdichtungsfläche 14 angeordnet. Auf gleicher Höhe, links von AGR-Kanal 10 und unterhalb der Zylinderkopfdichtungsfläche 14 befindet sich die AGR-Kühleraufnahme 11. Unter dem AGR-Kanal 10 und der AGR-Kühleraufnahme 11 befindet sich die Anlasseraufnahme 12. Schräg oberhalb des AGR-Kanals an der einen Stirnseite des Kurbelgehäuses 1 befindet sich eine nasenartige Materialansammlung im Bereich des Durchtritts des Zahnrads zur Nockenwelle 13, die an die Zylinderkopfdichtungsfläche 14 angrenzt. 3 shows a cylinder crankcase 1 with a passage for the gear wheel to the camshaft 2. The cover or gear box 3 is located on the in 1 illustrated processing of the sealing surface to the timing case cover 4, wherein the timing case cover 3 has a sealing counter-contour on the timing case cover 5, which is in the Figures 6a and 6b to be shown. The gear case cover can be in one piece 6 or in two pieces 7, which is also in the Figures 6a and 6b you can see. The gradation of the screw-on slugs 8, resulting from the processing slope according to 1 results is in 2 shown and is used to connect the cylinder crankcase 1 and gear case cover 3. The oil pan sealing surface 9 is arranged at the lower end of the crankcase 1. An exhaust gas recirculation (EGR) channel 10 is arranged in the upper area of the crankcase 1 below the cylinder head gasket surface 14 . At the same height, to the left of EGR channel 10 and below the cylinder head gasket surface 14, is the EGR cooler mount 11. Below the EGR channel 10 and the EGR cooler mount 11 is the starter mount 12. Diagonally above the EGR channel on one On the front side of the crankcase 1 there is a nose-like accumulation of material in the area where the gear wheel passes through to the camshaft 13 , which adjoins the cylinder head gasket surface 14 .

In Fig. 4a wird eine Draufsicht auf das Kurbelgehäuse 1 gemäß Fig. 1 von unten auf die geteilte Ölwannendichtungsfläche 9 mit montierter (geschrumpft) Kurbelwelle 19 offenbart.In Figure 4a 1 is a plan view of the crankcase 1 according to FIG 1 from below onto the split oil pan sealing surface 9 with the crankshaft 19 mounted (shrunk).

Fig. 4b zeigt eine Draufsicht auf das Kurbelgehäuse 1 gemäß Fig. 1 von unten auf die geschlossene Ölwannendichtungsfläche 9 mit gebauter (geschraubt) Kurbelwelle 18 offenbart. Figure 4b shows a plan view of the crankcase 1 according to FIG 1 from below onto the closed oil pan sealing surface 9 with a built (screwed) crankshaft 18 revealed.

Fig. 5 a stellt eine Draufsicht auf das Kurbelgehäuse gemäß Fig. 4a, b von unten auf die Ölwannendichtungsfläche 9 mit montiertem Räderkastendeckel 3, der zweiteilig 7 ist, sowie mit geteiltem Ölwannenflansch dar. figure 5 a represents a plan view of the crankcase according to FIG Figure 4a , b from below onto the oil pan sealing surface 9 with the mounted timing case cover 3, which is in two parts 7, and with a split oil pan flange.

Fig. 5 b stellt eine Draufsicht auf das Kurbelgehäuse gemäß Fig. 4a, b von unten auf die Ölwannendichtungsfläche 9 ohne montiertem Räderkastendeckel 3 mit geschlossenem Ölwannenflansch 9 dar. Figure 5b Figure 1 shows a plan view of the crankcase according to Figure 4a , b from below onto the oil pan sealing surface 9 without the gear case cover 3 mounted and with the oil pan flange 9 closed.

In Fig. 6a und 6b weist der Räderkastendeckel 3 eine Dichtgegenkontur am Räderkastendeckel 5 auf, die in den Fig. 6a und 6b gezeigt werden. Die Räderkastendeckel können einteilig 6 oder zweiteilig 7 sein.In Figures 6a and 6b the gear case cover 3 has a sealing counter-contour on the gear case cover 5, which is in the Figures 6a and 6b to be shown. The timing case covers can be in one piece 6 or in two pieces 7 .

BezugszeichenReference sign

11
Zylinderkurbelgehäusecylinder crankcase
22
Durchtritt für das Zahnrad zur NockenwellePassage for the gear to the camshaft
33
Deckel/Räderkastendeckelcover/wheel case cover
44
Bearbeitung der Dichtfläche zum Deckel/RäderkastendeckelMachining of the sealing surface for the cover/wheel housing cover
55
Dichtgegenkontur am Deckel/RäderkastendeckelSealing contour on the cover/wheel case cover
66
Räderkastendeckel einteiligOne-piece timing case cover
77
Räderkastendeckel zweiteiligTwo-piece timing case cover
88th
Stufung der Anschraubbutzen, die sich aus der Bearbeitungsschräge ergibtStepping of the screw-on slugs, which results from the processing bevel
99
Ölwannendichtungsflächeoil pan sealing surface
1010
AGR-KanalEGR channel
1111
AGR-KühleraufnahmeEGR cooler intake
1212
Anlasseraufnahmestarter mount
1313
nasenartige Materialansammlung im Bereich des Durchtritts des Zahnrads zur NockenwelleNose-like accumulation of material in the area where the gear wheel passes through to the camshaft
1414
Zylinderkopfdichtungsflächecylinder head gasket surface
1515
Dichtungsfläche AGR-KühlerSealing surface EGR cooler
1818
gebaute/geschraubte Kurbelwelle für ein Zylinderkurbelgehäuse mit geschlossenem Ölwannenflanschbuilt/bolted crankshaft for a cylinder crankcase with closed oil pan flange
1919
geschrumpfte Kurbelwelle für ein Zylinderkurbelgehäuse mit geteiltem ÖlflanschShrunk crankshaft for a cylinder crankcase with a split oil flange

Claims (9)

  1. Crankcase for an internal combustion engine having at least one oil sump flange and a single-piece crankshaft, wherein at least one end side of the crankcase, at which, for example, the gear drive is arranged, has a machined face of the sealing surface facing towards the cover/gear case cover, which machined face is arranged at an angle of approximately 4° to the perpendicular with respect to the oil sump flange surface, characterized in that, on the side facing towards the gear case, approximately in the region of the leadthrough of the toothed gear to the camshaft (2), a lug-like material accumulation (13) is arranged on the cylinder head gasket side (14), which is situated opposite the oil sump flange side (9) of the crankcase.
  2. Crankcase for an internal combustion engine according to Claim 1, characterized in that said crankcase has a cover/gear case (3) which is arranged in a detachably fastened manner to the machined face of the sealing surface with respect to the gear case cover, which machined face is arranged at an angle of approximately 4° to the perpendicular with respect to the oil sump flange surface.
  3. Crankcase for an internal combustion engine according to Claim 1, characterized in that the cover/gear case (3) is fastened to the crankcase by means of the threaded bores 8, which are arranged in the crankcase, and the corresponding screws.
  4. Crankcase for an internal combustion engine according to one or more of the preceding claims, characterized in that the cover/gear case (3) has a corresponding machined face of the sealing surface, with an angle of approximately 4° to the perpendicular with respect to the oil sump flange surface, for the purposes of sealed connection to the end side of the crankcase (1) .
  5. Crankcase for an internal combustion engine according to one or more of the preceding claims, characterized in that the crankcase (1) has at least one integrated exhaust-gas recirculation cooler (11).
  6. Crankcase for an internal combustion according to one or more of the preceding claims,
    characterized in that the crankcase (1) has at least one exhaust-gas recirculation channel (10).
  7. Crankcase for an internal combustion engine according to one or more of the preceding claims, characterized in that the lug-like material accumulation (13) is arranged substantially between the upper delimitation of the EGR channel (10) and the cylinder head gasket side.
  8. Crankcase for an internal combustion engine according to one or more of the preceding claims, characterized in that the machined face of the sealing surface facing towards the gear case cover (4), which machined face is arranged at an angle of approximately 4° to the perpendicular with respect to the oil sump flange surface of the crankcase (9), is arranged between the oil sump flange surface and the lug-like material accumulation (13).
  9. Internal combustion engine having a cylinder crankcase and a connection housing according to one or more of the preceding claims.
EP17000589.6A 2016-05-04 2017-04-07 Internal combustion engine comprising a cylinder crankcase and a connection housing Active EP3242009B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL17000589T PL3242009T3 (en) 2016-05-04 2017-04-07 Internal combustion engine comprising a cylinder crankcase and a connection housing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016005388.7A DE102016005388A1 (en) 2016-05-04 2016-05-04 Internal combustion engine with a cylinder crankcase and a connection housing

Publications (2)

Publication Number Publication Date
EP3242009A1 EP3242009A1 (en) 2017-11-08
EP3242009B1 true EP3242009B1 (en) 2022-01-19

Family

ID=58501252

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17000589.6A Active EP3242009B1 (en) 2016-05-04 2017-04-07 Internal combustion engine comprising a cylinder crankcase and a connection housing

Country Status (4)

Country Link
EP (1) EP3242009B1 (en)
DE (1) DE102016005388A1 (en)
ES (1) ES2907653T3 (en)
PL (1) PL3242009T3 (en)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08151955A (en) * 1994-11-29 1996-06-11 Daihatsu Motor Co Ltd Seal structure for cylinder head
JP3633098B2 (en) * 1996-04-08 2005-03-30 スズキ株式会社 Chain cover mounting structure for internal combustion engines
DE19855562C1 (en) 1998-12-02 2000-05-31 Mtu Friedrichshafen Gmbh Crankcase
DE10220838C1 (en) 2002-05-08 2003-12-18 Porsche Ag Internal combustion engine
DE102004023540A1 (en) * 2004-05-13 2005-12-01 Deutz Ag Internal combustion engine has distribution pipe constructed in one piece with cylinder head and may be constructed in one piece with fresh gas line
DE102004049030B4 (en) * 2004-10-08 2008-09-11 Audi Ag Arrangement of a timing case cover
DE102005059006A1 (en) * 2005-12-08 2007-06-14 Deutz Ag Exhaust gas recirculation (EGR) system for loaded- or suction-type internal combustion (IC) engine, directly connects exhaust gas cooler with control valve housing, with coolant line connection located in-between
DE102013213773A1 (en) * 2012-07-19 2014-01-23 GM Global Technology Operations, LLC (n.d. Ges. d. Staates Delaware) Housing for internal combustion engine, has asymmetric surface areas arranged around circular edge, where each asymmetric surface area exhibits surface outline, which differs from surface outlines of other surface area
DE102013020944A1 (en) * 2013-12-12 2014-08-14 Daimler Ag Internal combustion engine for motor car, has first sealing surface for sealing against steering box cover and second sealing surface for sealing against crankshaft housing, where sealing surfaces include inner angle

Also Published As

Publication number Publication date
EP3242009A1 (en) 2017-11-08
DE102016005388A1 (en) 2017-11-09
PL3242009T3 (en) 2022-05-09
ES2907653T3 (en) 2022-04-25

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