EP2507496A1 - Internal combustion engine having a cylinder head and a cylinder block - Google Patents

Internal combustion engine having a cylinder head and a cylinder block

Info

Publication number
EP2507496A1
EP2507496A1 EP10781711A EP10781711A EP2507496A1 EP 2507496 A1 EP2507496 A1 EP 2507496A1 EP 10781711 A EP10781711 A EP 10781711A EP 10781711 A EP10781711 A EP 10781711A EP 2507496 A1 EP2507496 A1 EP 2507496A1
Authority
EP
European Patent Office
Prior art keywords
internal combustion
flange
oil pump
combustion engine
crankcase
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Withdrawn
Application number
EP10781711A
Other languages
German (de)
French (fr)
Inventor
Helmut Melde-Tuczai
Christof Knollmayr
Andreas Zurk
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.)
AVL List GmbH
Original Assignee
AVL List GmbH
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 AVL List GmbH filed Critical AVL List GmbH
Publication of EP2507496A1 publication Critical patent/EP2507496A1/en
Withdrawn legal-status Critical Current

Links

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
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/0002—Cylinder arrangements
    • F02F7/0007—Crankcases of engines with cylinders in line
    • 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
    • F01M1/00—Pressure lubrication
    • F01M1/02—Pressure lubrication using lubricating pumps
    • 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 
    • F02F1/002—Integrally formed cylinders and 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 
    • F02F1/02—Cylinders; Cylinder heads  having cooling means
    • F02F1/10—Cylinders; Cylinder heads  having cooling means for liquid cooling
    • F02F1/16—Cylinder liners of wet type
    • 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
    • F02F1/4285—Shape or arrangement of intake or exhaust channels in cylinder heads of both intake and exhaust channel
    • 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
    • F01M1/00—Pressure lubrication
    • F01M1/02—Pressure lubrication using lubricating pumps
    • F01M2001/0284—Pressure lubrication using lubricating pumps mounting of the pump

Definitions

  • the invention relates to an internal combustion engine having a cylinder head and a cylinder block, wherein a crankcase is attached to the cylinder block, wherein the crankcase has at least one oil pump.
  • head-cylinder block units are also referred to as a monobloc.
  • the head-block unit usually includes a one-piece crankcase.
  • internal combustion engines with multi-part crankcases are known, wherein in each case a crankcase part and bearing bracket for the crankshaft bearing are molded together in one piece. This component is also referred to as a "bed plate”.
  • monoblock internal combustion engines individual storage chairs have been used with individual bearing brackets to allow the necessary accessibility for the machining of the cylinder bores.
  • the object of the invention is to reduce the processing effort in an internal combustion engine of the type mentioned.
  • a simple attachment with little processing effort can be achieved if the flange is connected to the mounting wall via at least a first screw and the oil pump to the flange via at least a second screw, wherein preferably the second screws are longer than the first screws.
  • the oil pump is arranged on an inner surface of the mounting wall, wherein preferably the flange is arranged on an outer surface of the mounting wall, wherein the first and second screws can be inserted into corresponding screw holes from the flange side.
  • the oil pump is attached via the flange on the second part of the crankcase.
  • This flange is formed so that the first screws for the pump and the second screws for the flange are on the same side, namely the outside of the crankcase.
  • the flange is pressed onto the clamping surface of the first part of the crankcase with the short first screws and the oil pump is pulled by the long second screws onto the face of the flange.
  • the processing cost can be significantly reduced.
  • the crankcase consists of a subsequent to the head block unit first part and a subsequent to the first part of the second part, wherein the first and second part in a the axis of a crankshaft-containing plane, preferably normal to the Cylinder axes are divided, preferably first and / or second part forming at least one main bearing for the crankshaft.
  • the oil pump is arranged in the second part of the crankcase. Alternatively, however, an arrangement in the first part is possible.
  • FIG. 1 shows an internal combustion engine according to the invention in a section along the line I-I in FIG. 2;
  • Fig. 2 shows the internal combustion engine in a section along the line II-II in
  • Figure 5 shows the internal combustion engine according to the invention in a section along the line V-V in Fig. 1.
  • Fig. 6 shows the internal combustion engine in a view according to the line VI-VI in
  • FIGS. 1 to 4 show an internal combustion engine 1 with a cylinder head 2 and a cylinder block 3, wherein the cylinder head 2 and cylinder block 3 are made in one piece with a head block unit 4.
  • a crankcase 10 which consists of an upper first part 7 and a lower second part 8.
  • the cylinder liners 9 are screwed into the head block unit 4. Alternatively, it is also conceivable to form the cylinder liners 9 integrally with the head block unit 4.
  • Head block unit 4, first part 7 and second part 8 of the crankcase 10 may be made of different materials.
  • a particularly lightweight crankcase 10 can be realized when all components are made of light metal.
  • the distance between the individual cylinders results from the condition that a complete mounting bevel 13 must be formed for the O-ring seal 11 of the cooling water chamber 12. In the case of the integral cylinder liner, the cylinder pitch becomes smaller.
  • the two-part crankcase 10 may accommodate at least one mass balance shaft 20, at least one injection pump drive shaft, and / or at least one oil pump 30.
  • the outlet conduits 14 can be integrated into the head block unit 4. Furthermore, at least partially, the inlet lines 15 and the inlet header 16 can be integrated into the head block unit 4. Particularly in the case of a gasoline engine, long supply pipes 17 (“ram pipes”) may be accommodated in the cylinder head cover 18 and the head block unit 4. The inlet header 16 is in this case at a lower position.
  • ram pipes long supply pipes
  • the mass balance shaft 20 can be integrated into the first part 7.
  • the position of the mass balance shaft 20 is found so that the balancing weights 21 of the mass balance shaft 20 can rotate with sufficient distance from the envelope 22 of the connecting rod not shown, wherein the axis 20a of the mass balance shaft 20 is not necessarily in the plane ⁇ of the axis 19a of the crankshaft 19 must lie.
  • the bearing bores 23 are accommodated in flange bushings 24. These are fastened with flange screws 25 in the first part 7.
  • a trained as a dowel pin first pin 26 on the straight connecting line 27 between the axis 19a of the crankshaft 19 and the axis 20a of the mass balance shaft 20 is respectively at a precisely defined distance to the axis 19a of the crankshaft 19 in the region of the end faces 5 of the first Part 7 arranged.
  • the first pin 26 is guided in a bore 6 of the flange bushing 24 and holds the necessary distance for the engagement of the two gears 28, 29 for driving the mass balance shaft 20 through the crankshaft 19th
  • the machining of the surface 30 for the attachment of the Flanschbuchsen 24 in the first part 7 can be done from the outside.
  • a corresponding recess 31 for receiving the flange bushings 24 is provided in the head block unit 4.
  • a second pin 32 is provided with two flattenings 33 in its cross section in order to ensure the parallelism of the mass balance shaft 20 to the crankshaft 19.
  • the two flats 33 are aligned parallel to the connecting line 27 between the axis 19a of the crankshaft 19 and the axis 20a of the mass balance shaft 20.
  • the flange bushing 24 has a guide opening 39 corresponding to the second pin 32. As a result, the flange bush 24 can be pivoted about the first pin 26 without disadvantages for the tooth engagement of the two gears 28, 29 occur.
  • the receiving bores 34 for the main bearings 35 of the crankshaft 19 and the bearing bores 23 in the flange bushings 24 can be processed independently of the head-block unit 4 in one clamping.
  • the drive of the mass balance shaft 20 can be made instead of the gears 28, 29 with a chain.
  • the mass balance shaft 20 can also be designed to drive an injection pump 36.
  • the mass balance shaft 20 has for this purpose a cam 37, which acts on the drive plunger 38 of the injection pump 36.
  • the position of the cam 37 is freely selectable and, as an alternative to the symmetrical arrangement shown in FIG. 5, can also be provided in the area of the flywheel-side bearing.
  • an oil pump 40 can also be arranged in the crankcase 10, that is to say either in the first part 7 or in the second part 8.
  • Fig. 7 shows an embodiment in which the oil pump 40 is positioned in the second part 8.
  • the drive of the oil pump 40 via the crankshaft 19 through the drive gear 41.
  • a flange 43 is inserted into a mounting wall 42 of the second part 8.
  • the flange 43 is fastened via short first screws 44 to the mounting wall 42 of the second part 8.
  • Long second screws 45 pull the oil pump 40 against the front side 46 of the flange 43.
  • the oil pump 40 is not pressed by internal screws to the second part 8, but by the outer second screw ben 45 pulled against the end face 46 of the flange 43.
  • the screws 44, 45 for the attachment of the flange 43 and the oil pump 40 are arranged on the same externally accessible side of the crankcase 10.
  • the drive of the oil pump 40 may alternatively take place via the drive gear 41 via a chain, not shown.

Landscapes

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

Abstract

The invention relates to an internal combustion engine (1) having a cylinder head (2) and a cylinder block (3), wherein a crankcase (10) is fastened to the cylinder block (3), wherein the crankcase (10) comprises at least one oil pump (40). In order to reduce the manufacturing effort, according to the invention, the oil pump is disposed in the crankcase (10), wherein the oil pump (40) is connected to a flange (43), and wherein the flange (43) is attached to a mounting wall (42) of the crankcase (10).

Description

Brennkraftmaschine mit einem Zylinderkopf und einem Zylinderblock  Internal combustion engine with a cylinder head and a cylinder block
Die Erfindung betrifft eine Brennkraftmaschine mit einem Zylinderkopf und einem Zylinderblock, wobei am Zylinderblock ein Kurbelgehäuse befestigt ist, wobei das Kurbelgehäuse zumindest eine Ölpumpe aufweist. The invention relates to an internal combustion engine having a cylinder head and a cylinder block, wherein a crankcase is attached to the cylinder block, wherein the crankcase has at least one oil pump.
Es ist bekannt, Zylinderkopf und Zylinderblock als Einheit auszuführen. Derartige Kopf-Zylinder-Block-Einheiten werden auch als Monoblock bezeichnet. An die Kopf-Block-Einheit schließt üblicherweise ein einteiliges Kurbelgehäuse an. Weiters sind Brennkraftmaschinen mit mehrteiligen Kurbelgehäusen bekannt, wobei jeweils ein Kurbelgehäuseteil und Lagerbügel für die Kurbelwellenlagerung in einem Stück zusammengegossen sind . Diese Komponente wird auch als "bed plate" bezeichnet. Bei Monoblock-Brennkraftmaschinen wurden bisher einzelne Lagerstühle mit einzelnen Lagerbügeln eingesetzt, um die nötige Zugänglichkeit für die Bearbeitung der Zylinderbohrungen zu ermöglichen. It is known to perform cylinder head and cylinder block as a unit. Such head-cylinder block units are also referred to as a monobloc. The head-block unit usually includes a one-piece crankcase. Furthermore, internal combustion engines with multi-part crankcases are known, wherein in each case a crankcase part and bearing bracket for the crankshaft bearing are molded together in one piece. This component is also referred to as a "bed plate". In monoblock internal combustion engines individual storage chairs have been used with individual bearing brackets to allow the necessary accessibility for the machining of the cylinder bores.
Aus der GB 2 425 570 B ist eine Brennkraftmaschine mit Zylinderkopf und Zylinderblock bekannt, wobei Zylinderkopf und Zylinderblock integral ausgeführt sind . From GB 2 425 570 B an internal combustion engine with cylinder head and cylinder block is known, wherein cylinder head and cylinder block are made integral.
Aus der JP 2000-337117 A ist es bekannt, eine ein integriertes Regelventil aufweisende Ölpumpe mit Schrauben von außen am Kurbelgehäuse zu befestigen. Dabei wird die Montageöffnung öldicht vom Flansch der Ansaugleitung mitverschlossen. Nachteilig ist, dass relativ viele zu bearbeitende Flächen vorliegen. From JP 2000-337117 A it is known to fasten an integrated control valve having an oil pump with screws from the outside to the crankcase. The mounting hole is sealed in oil-tight from the flange of the suction line. The disadvantage is that there are relatively many surfaces to be processed.
Aufgabe der Erfindung ist es, bei einer Brennkraftmaschine der eingangs genannten Art den Bearbeitungsaufwand zu vermindern. The object of the invention is to reduce the processing effort in an internal combustion engine of the type mentioned.
Erfindungsgemäß wird dies dadurch erreicht, dass die Ölpumpe im Kurbelgehäuse angeordnet ist, wobei die Ölpumpe mit einem Flansch verbunden ist, und wobei der Flansch an einer Montagewand des Kurbelgehäuses befestigt ist. According to the invention this is achieved in that the oil pump is arranged in the crankcase, wherein the oil pump is connected to a flange, and wherein the flange is fixed to a mounting wall of the crankcase.
Eine einfache Befestigung mit kleinem Bearbeitungsaufwand lässt sich erzielen, wenn der Flansch mit der Montagewand über zumindest eine erste Schraube und die Ölpumpe mit dem Flansch über zumindest eine zweite Schraube verbunden ist, wobei vorzugsweise die zweiten Schrauben länger sind als die ersten Schrauben. A simple attachment with little processing effort can be achieved if the flange is connected to the mounting wall via at least a first screw and the oil pump to the flange via at least a second screw, wherein preferably the second screws are longer than the first screws.
Besonders vorteilhaft ist es, wenn die Ölpumpe an einer Innenfläche der Montagewand angeordnet ist, wobei vorzugsweise der Flansch an einer Außenfläche der Montagewand angeordnet ist, wobei die ersten und zweiten Schrauben in entsprechende Schraubenbohrungen von der Flanschseite her einsetzbar sind . Die Ölpumpe ist dabei über den Flansch am zweiten Teil des Kurbelgehäuses befestigt. Dieser Flansch ist so ausgebildet, dass die ersten Schrauben für die Pumpe und die zweiten Schrauben für den Flansch auf derselben Seite, nämlich der Außenseite des Kurbelgehäuses liegen. Der Flansch wird mit den kurzen ersten Schrauben an die Aufspannfläche des ersten Teils des Kurbelgehäuses ge- presst und die Ölpumpe von den langen zweiten Schrauben auf die Stirnfläche des Flansches gezogen. Der Vorteil dieser Anordnung besteht darin, dass nur eine Bearbeitung der Aufspannfläche und der Zentrierbohrung für den Flansch von außen nötig ist, um die Ölpumpe im Inneren des Unterteils einzubauen. It is particularly advantageous if the oil pump is arranged on an inner surface of the mounting wall, wherein preferably the flange is arranged on an outer surface of the mounting wall, wherein the first and second screws can be inserted into corresponding screw holes from the flange side. The oil pump is attached via the flange on the second part of the crankcase. This flange is formed so that the first screws for the pump and the second screws for the flange are on the same side, namely the outside of the crankcase. The flange is pressed onto the clamping surface of the first part of the crankcase with the short first screws and the oil pump is pulled by the long second screws onto the face of the flange. The advantage of this arrangement is that only one processing of the clamping surface and the center hole for the flange from the outside is necessary to install the oil pump in the interior of the lower part.
Besonders bei Brennkraftmaschinen mit einer aus Zylinderkopf und Zylinderblock gebildeten einteiligen Kopf-Block-Einheit lässt sich der Bearbeitungsaufwand wesentlich reduzieren. Vorzugsweise ist dabei weiters vorgesehen, dass das Kurbelgehäuse aus einem an die Kopf-Block-Einheit anschließenden ersten Teil und einem an den ersten Teil anschließenden zweiten Teil besteht, wobei erster und zweiter Teil in einer die Achse einer Kurbelwelle beinhaltenden Ebene, vorzugsweise normal auf die Zylinderachsen, geteilt sind, wobei vorzugsweise erster und/oder zweiter Teil zumindest ein Hauptlager für die Kurbelwelle ausbilden. Vorzugsweise ist die Ölpumpe dabei im zweiten Teil des Kurbelgehäuses angeordnet. Alternativ dazu ist aber auch eine Anordnung im ersten Teil möglich. Especially in internal combustion engines with a one-piece head-block unit formed from cylinder head and cylinder block, the processing cost can be significantly reduced. Preferably, it is further provided that the crankcase consists of a subsequent to the head block unit first part and a subsequent to the first part of the second part, wherein the first and second part in a the axis of a crankshaft-containing plane, preferably normal to the Cylinder axes are divided, preferably first and / or second part forming at least one main bearing for the crankshaft. Preferably, the oil pump is arranged in the second part of the crankcase. Alternatively, however, an arrangement in the first part is possible.
Die Erfindung wird im Folgenden anhand der Figuren näher erläutert. Es zeigen : The invention will be explained in more detail below with reference to FIGS. Show it :
Fig. 1 eine erfindungsgemäße Brennkraftmaschine in einem Schnitt gemäß der Linie I-I in Fig . 2; 1 shows an internal combustion engine according to the invention in a section along the line I-I in FIG. 2;
Fig. 2 die Brennkraftmaschine in einem Schnitt gemäß der Linie II-II in Fig. 2 shows the internal combustion engine in a section along the line II-II in
Fig . 1;  Fig. 1;
Fig. 3 die Brennkraftmaschine in einem Schnitt gemäß der Linie III-III in Fig. 3, the internal combustion engine in a section along the line III-III in
Fig . 1;  Fig. 1;
Fig. 4 die Brennkraftmaschine in einer Draufsicht; 4 shows the internal combustion engine in a plan view;
Fig. 5 die erfindungsgemäße Brennkraftmaschine in einem Schnitt gemäß der Linie V-V in Fig. 1; Figure 5 shows the internal combustion engine according to the invention in a section along the line V-V in Fig. 1.
Fig. 6 die Brennkraftmaschine in einer Ansicht gemäß der Linie VI-VI in Fig. 6 shows the internal combustion engine in a view according to the line VI-VI in
Fig . 5; und  Fig. 5; and
Fig. 7 die Brennkraftmaschine in einem weiteren Schnitt durch das Kurbelgehäuse gemäß der Linie VII-VII in Fig . 6. Die Fig. 1 bis Fig. 4 zeigen eine Brennkraftmaschine 1 mit einem Zylinderkopf 2 und einem Zylinderblock 3, wobei Zylinderkopf 2 und Zylinderblock 3 einstückig zu einer Kopf-Block-Einheit 4 ausgeführt sind . An die Kopf-Block-Einheit 4 schließt ein Kurbelgehäuse 10 an, welches aus einem oberen ersten Teil 7 und einem unteren zweiten Teil 8 besteht. Die Zylinderlaufbuchsen 9 sind in die Kopf- Block-Einheit 4 eingeschraubt. Alternativ dazu ist es auch denkbar, die Zylinderlaufbuchsen 9 integral mit der Kopf-Block-Einheit 4 auszubilden. 7 shows the internal combustion engine in a further section through the crankcase according to the line VII-VII in FIG. 6th FIGS. 1 to 4 show an internal combustion engine 1 with a cylinder head 2 and a cylinder block 3, wherein the cylinder head 2 and cylinder block 3 are made in one piece with a head block unit 4. To the head-block unit 4 includes a crankcase 10, which consists of an upper first part 7 and a lower second part 8. The cylinder liners 9 are screwed into the head block unit 4. Alternatively, it is also conceivable to form the cylinder liners 9 integrally with the head block unit 4.
Kopf-Block-Einheit 4, erster Teil 7 und zweiter Teil 8 des Kurbelgehäuses 10 können aus verschiedenen Werkstoffen bestehen. Ein besonders leichtes Kurbelgehäuse 10 kann realisiert werden, wenn alle Komponenten aus Leichtmetall gefertigt werden. Alternativ dazu ist es auch denkbar, die Kopf-Block-Einheit 4 und den ersten Teil 7 aus Leichtmetall herzustellen, hingegen die Zylinderlaufbuchsen 9 und den hoch belasteten zweiten Teil 8 aus Grauguss zu fertigen. Der Abstand zwischen den einzelnen Zylindern ergibt sich aus der Bedingung, dass für die O- Ringabdichtung 11 des Kühlwasserraums 12 eine vollständige Montage-Fase 13 ausgebildet werden muss. Im Fall der integralen Zylinderlaufbuchse wird der Zylinderabstand kleiner. Das zweiteilige Kurbelgehäuse 10 kann zumindest eine Massenausgleichwelle 20, zumindest eine Einspritzpumpenantriebswelle und/oder zumindest eine Ölpumpe 30 aufnehmen. Head block unit 4, first part 7 and second part 8 of the crankcase 10 may be made of different materials. A particularly lightweight crankcase 10 can be realized when all components are made of light metal. Alternatively, it is also conceivable to manufacture the head block unit 4 and the first part 7 made of light metal, however, to manufacture the cylinder liners 9 and the highly loaded second part 8 of gray iron. The distance between the individual cylinders results from the condition that a complete mounting bevel 13 must be formed for the O-ring seal 11 of the cooling water chamber 12. In the case of the integral cylinder liner, the cylinder pitch becomes smaller. The two-part crankcase 10 may accommodate at least one mass balance shaft 20, at least one injection pump drive shaft, and / or at least one oil pump 30.
Wie aus den Fig . 1 bis Fig. 4 ersichtlich ist, können die Auslassleitungen 14 in die Kopf-Block-Einheit 4 integriert werden. Weiters können zumindest teilweise auch die Einlassleitungen 15 und der Einlasssammler 16 in die Kopf-Block-Einheit 4 integriert werden. Insbesondere im Falle eines Benzinmotors können lange Zuführleitungen 17 ("ram pipes") im Zylinderkopfdeckel 18 und der Kopf-Block-Einheit 4 untergebracht sein. Der Einlasssammler 16 liegt in diesem Fall an einer tieferen Position. As shown in FIGS. 1 to 4, the outlet conduits 14 can be integrated into the head block unit 4. Furthermore, at least partially, the inlet lines 15 and the inlet header 16 can be integrated into the head block unit 4. Particularly in the case of a gasoline engine, long supply pipes 17 ("ram pipes") may be accommodated in the cylinder head cover 18 and the head block unit 4. The inlet header 16 is in this case at a lower position.
Wie aus den Fig. 1, Fig . 5 und Fig. 6 ersichtlich ist, kann die Massenausgleichswelle 20 in den ersten Teil 7 integriert werden. Dabei wird die Position der Massenausgleichswelle 20 so gefunden, dass die Ausgleichsgewichte 21 der Massenausgleichswelle 20 mit genügend Abstand von der Einhüllenden 22 der nicht weiter dargestellten Pleuelstange rotieren können, wobei die Achse 20a der Massenausgleichswelle 20 nicht unbedingt in der Ebene ε der Achse 19a der Kurbelwelle 19 liegen muss. Damit die Bearbeitung der Lagerbohrungen 23 unabhängig von der Kopf-Block-Einheit 4 erfolgen kann, werden die Lagerbohrungen 23 in Flanschbuchsen 24 untergebracht. Diese werden mit Flanschschrauben 25 im ersten Teil 7 befestigt. Ein als Passstift ausgebildeter erster Stift 26 auf der geraden Verbindungslinie 27 zwischen der Achse 19a der Kurbelwelle 19 und der Achse 20a der Massenausgleichswelle 20 ist jeweils in genau definierter Entfernung zur Achse 19a der Kurbelwelle 19 im Bereich der Stirnseiten 5 des ersten Teils 7 angeordnet. Der erste Stift 26 ist in einer Bohrung 6 der Flanschbuchse 24 geführt und hält den nötigen Abstand für den Eingriff der beiden Zahnräder 28, 29 zum Antrieb der Massenausgleichswelle 20 durch die Kurbelwelle 19. As is apparent from FIGS. 1, FIG. 5 and 6, the mass balance shaft 20 can be integrated into the first part 7. The position of the mass balance shaft 20 is found so that the balancing weights 21 of the mass balance shaft 20 can rotate with sufficient distance from the envelope 22 of the connecting rod not shown, wherein the axis 20a of the mass balance shaft 20 is not necessarily in the plane ε of the axis 19a of the crankshaft 19 must lie. In order for the machining of the bearing bores 23 to take place independently of the head-block unit 4, the bearing bores 23 are accommodated in flange bushings 24. These are fastened with flange screws 25 in the first part 7. A trained as a dowel pin first pin 26 on the straight connecting line 27 between the axis 19a of the crankshaft 19 and the axis 20a of the mass balance shaft 20 is respectively at a precisely defined distance to the axis 19a of the crankshaft 19 in the region of the end faces 5 of the first Part 7 arranged. The first pin 26 is guided in a bore 6 of the flange bushing 24 and holds the necessary distance for the engagement of the two gears 28, 29 for driving the mass balance shaft 20 through the crankshaft 19th
Die Bearbeitung der Fläche 30 für die Befestigung der Flanschbuchsen 24 im ersten Teil 7 kann von außen erfolgen. In der Kopf-Block-Einheit 4 ist eine entsprechende Ausnehmung 31 zur Aufnahme der Flanschbuchsen 24 vorgesehen. The machining of the surface 30 for the attachment of the Flanschbuchsen 24 in the first part 7 can be done from the outside. In the head block unit 4, a corresponding recess 31 for receiving the flange bushings 24 is provided.
Weiters ist im Bereich der Stirnseite 5 des ersten Teils 7 ein zweiter Stift 32 mit zwei Abflachungen 33 in seinem Querschnitt vorgesehen, um die Parallelität der Massenausgleichswelle 20 zur Kurbelwelle 19 sicherzustellen. Dabei sind die beiden Abflachungen 33 parallel zur Verbindungslinie 27 zwischen den der Achse 19a der Kurbelwelle 19 und der Achse 20a der Massenausgleichswelle 20 ausgerichtet. Die Flanschbuchse 24 weist eine mit dem zweiten Stift 32 korrespondierende Führungsöffnung 39 auf. Dadurch kann die Flanschbuchse 24 um den ersten Stift 26 geschwenkt werden, ohne dass Nachteile für den Zahneingriff der beiden Zahnräder 28, 29 auftreten. Furthermore, in the region of the front side 5 of the first part 7, a second pin 32 is provided with two flattenings 33 in its cross section in order to ensure the parallelism of the mass balance shaft 20 to the crankshaft 19. The two flats 33 are aligned parallel to the connecting line 27 between the axis 19a of the crankshaft 19 and the axis 20a of the mass balance shaft 20. The flange bushing 24 has a guide opening 39 corresponding to the second pin 32. As a result, the flange bush 24 can be pivoted about the first pin 26 without disadvantages for the tooth engagement of the two gears 28, 29 occur.
Auf diese Weise können die Aufnahmebohrungen 34 für die Hauptlager 35 der Kurbelwelle 19 und die Lagerbohrungen 23 in den Flanschbuchsen 24 unabhängig von der Kopf-Block-Einheit 4 in einer Aufspannung bearbeitet werden. In this way, the receiving bores 34 for the main bearings 35 of the crankshaft 19 and the bearing bores 23 in the flange bushings 24 can be processed independently of the head-block unit 4 in one clamping.
Der Antrieb der Massenausgleichswelle 20 kann anstelle der Zahnräder 28, 29 auch mit einer Kette erfolgen. The drive of the mass balance shaft 20 can be made instead of the gears 28, 29 with a chain.
Wie aus der Fig . 5 zu entnehmen ist, kann die Massenausgleichswelle 20 auch zum Antrieb einer Einspritzpumpe 36 ausgebildet sein. Die Massenausgleichswelle 20 weist dazu einen Nocken 37 auf, welcher auf den Antriebsstößel 38 der Einspritzpumpe 36 einwirkt. Die Position des Nockens 37 ist frei wählbar und kann alternativ zu der in Fig. 5 dargestellten symmetrischen Anordnung auch im Bereich des schwungradseitigen Lagers vorgesehen sein. As shown in FIG. 5, the mass balance shaft 20 can also be designed to drive an injection pump 36. The mass balance shaft 20 has for this purpose a cam 37, which acts on the drive plunger 38 of the injection pump 36. The position of the cam 37 is freely selectable and, as an alternative to the symmetrical arrangement shown in FIG. 5, can also be provided in the area of the flywheel-side bearing.
Weiters kann in das Kurbelgehäuse 10, also entweder im ersten Teil 7 oder im zweiten Teil 8, auch eine Ölpumpe 40 angeordnet sein. Furthermore, an oil pump 40 can also be arranged in the crankcase 10, that is to say either in the first part 7 or in the second part 8.
Fig . 7 zeigt eine Ausführung, bei der die Ölpumpe 40 im zweiten Teil 8 positioniert ist. Der Antrieb der Ölpumpe 40 erfolgt über die Kurbelwelle 19 durch das Antriebszahnrad 41. Zur Befestigung der Ölpumpe 40 wird in eine Montagewand 42 des zweiten Teils 8 ein Flansch 43 eingesetzt. Der Flansch 43 ist dabei über kurze erste Schrauben 44 an der Montagewand 42 des zweiten Teils 8 befestigt. Lange zweite Schrauben 45 ziehen die Ölpumpe 40 gegen die Stirnseite 46 des Flansches 43. Somit wird die Ölpumpe 40 nicht von innenliegenden Schrauben an den zweiten Teil 8 gepresst, sondern durch die außenliegenden zweiten Schrau- ben 45 gegen die Stirnseite 46 des Flansches 43 gezogen. Die Schrauben 44, 45 für die Befestigung des Flansches 43 und der Ölpumpe 40 sind dabei auf derselben von außen zugänglichen Seite des Kurbelgehäuses 10 angeordnet. Fig. 7 shows an embodiment in which the oil pump 40 is positioned in the second part 8. The drive of the oil pump 40 via the crankshaft 19 through the drive gear 41. To attach the oil pump 40, a flange 43 is inserted into a mounting wall 42 of the second part 8. The flange 43 is fastened via short first screws 44 to the mounting wall 42 of the second part 8. Long second screws 45 pull the oil pump 40 against the front side 46 of the flange 43. Thus, the oil pump 40 is not pressed by internal screws to the second part 8, but by the outer second screw ben 45 pulled against the end face 46 of the flange 43. The screws 44, 45 for the attachment of the flange 43 and the oil pump 40 are arranged on the same externally accessible side of the crankcase 10.
Der Vorteil dieser Anordnung besteht darin, dass nur eine Bearbeitung der Aufspannfläche 47 und der Zentrierbohrung 48 für den Flansch 43 von außen nötig ist, um die Ölpumpe 40 im Inneren des Kurbelgehäuses 10 einzubauen. The advantage of this arrangement is that only one machining of the clamping surface 47 and the center hole 48 for the flange 43 from the outside is necessary to install the oil pump 40 in the interior of the crankcase 10.
Der Antrieb der Ölpumpe 40 kann alternativ zum Antrieb über das Antriebszahnrad 41 auch über eine nicht weiter dargestellte Kette erfolgen. The drive of the oil pump 40 may alternatively take place via the drive gear 41 via a chain, not shown.

Claims

P A T E N T A N S P R Ü C H E PATENT APPLICATIONS
1. Brennkraftmaschine (1) mit einem Zylinderkopf (2) und einem Zylinderblock (3), wobei am Zylinderblock (3) ein Kurbelgehäuse (10) befestigt ist, wobei das Kurbelgehäuse (10) zumindest eine Ölpumpe (40) aufweist, dadurch gekennzeichnet, dass die Ölpumpe im Kurbelgehäuse (10) angeordnet ist, wobei die Ölpumpe (40) mit einem Flansch (43) verbunden ist, und wobei der Flansch (43) an einer Montagewand (42) des Kurbelgehäuses (10) befestigt ist. 1. internal combustion engine (1) with a cylinder head (2) and a cylinder block (3), wherein on the cylinder block (3) a crankcase (10) is fixed, wherein the crankcase (10) has at least one oil pump (40), characterized in that the oil pump is arranged in the crankcase (10), the oil pump (40) being connected to a flange (43), and the flange (43) being fastened to a mounting wall (42) of the crankcase (10).
2. Brennkraftmaschine (1) nach Anspruch 1, dadurch gekennzeichnet, dass der Flansch (42) mit der Montagewand (43) über zumindest eine erste Schraube (44) und die Ölpumpe (40) mit dem Flansch (42) über zumindest eine zweite Schraube (45) verbunden ist, wobei vorzugsweise die zweiten Schrauben (45) länger sind als die ersten Schrauben (44). 2. Internal combustion engine (1) according to claim 1, characterized in that the flange (42) with the mounting wall (43) via at least a first screw (44) and the oil pump (40) with the flange (42) via at least a second screw (45), wherein preferably the second screws (45) are longer than the first screws (44).
3. Brennkraftmaschine (1) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Ölpumpe (40) an einer Innenfläche der Montagewand (42) angeordnet ist. 3. Internal combustion engine (1) according to claim 1 or 2, characterized in that the oil pump (40) is arranged on an inner surface of the mounting wall (42).
4. Brennkraftmaschine (1) nach Anspruch 3, dadurch gekennzeichnet, dass der Flansch (43) an einer Außenfläche der Montagewand (42) angeordnet ist, wobei die ersten und zweiten Schrauben (44, 45) von der Flanschseite her montierbar sind. 4. Internal combustion engine (1) according to claim 3, characterized in that the flange (43) on an outer surface of the mounting wall (42) is arranged, wherein the first and second screws (44, 45) are mountable from the flange side.
5. Brennkraftmaschine (1) nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, dass die erste Schraube (44) in einer ersten Gewindebohrung der Montagewand (42) und die zweite Schraube (45) die Montagewand (42) zwischen Flansch (43) und Ölpumpe (40) durchsetzend in einer zweiten Gewindebohrung der Ölpumpe (40) eingeschraubt ist. 5. Internal combustion engine (1) according to one of claims 2 to 4, characterized in that the first screw (44) in a first threaded bore of the mounting wall (42) and the second screw (45), the mounting wall (42) between flange (43) and oil pump (40) passing through in a second threaded bore of the oil pump (40) is screwed.
6. Brennkraftmaschine (1) nach, einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass Zylinderkopf (2) und Zylinderblock (3) einstückig als Kopf-Block-Einheit (4) ausgeführt sind . 6. Internal combustion engine (1) according to one of claims 1 to 5, characterized in that the cylinder head (2) and cylinder block (3) are made in one piece as a head-block unit (4).
7. Brennkraftmaschine (1) nach Anspruch 6, dadurch gekennzeichnet, dass das Kurbelgehäuse (10) aus einem an die Kopf-Block-Einheit (4) anschließenden ersten Teil (7) und einem an den ersten Teil (7) anschließenden zweiten Teil (8) besteht, wobei erster und zweiter Teil (7, 8) in einer die Achse (19a) einer Kurbelwelle (19) beinhaltenden Ebene (ε), vorzugsweise normal auf die Zylinderachsen, geteilt sind . 7. Internal combustion engine (1) according to claim 6, characterized in that the crankcase (10) consists of a to the head block unit (4) adjoining the first part (7) and to the first part (7) adjoining the second part ( 8), wherein the first and second part (7, 8) in a the axis (19 a) of a crankshaft (19) containing plane (ε), preferably normal to the cylinder axes, are divided.
8. Brennkraftmaschine (1) nach Anspruch 7, dadurch gekennzeichnet, dass die Ölpumpe (40) im zweiten Teil (8) angeordnet ist. 8. Internal combustion engine (1) according to claim 7, characterized in that the oil pump (40) in the second part (8) is arranged.
EP10781711A 2009-12-03 2010-11-25 Internal combustion engine having a cylinder head and a cylinder block Withdrawn EP2507496A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT19202009A AT507477B1 (en) 2009-12-03 2009-12-03 Combustion engine with a cylinder head and a cylinder block
PCT/EP2010/068179 WO2011067155A1 (en) 2009-12-03 2010-11-25 Internal combustion engine having a cylinder head and a cylinder block

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EP2507496A1 true EP2507496A1 (en) 2012-10-10

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EP10781711A Withdrawn EP2507496A1 (en) 2009-12-03 2010-11-25 Internal combustion engine having a cylinder head and a cylinder block

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US (1) US8776758B2 (en)
EP (1) EP2507496A1 (en)
CN (1) CN102667123B (en)
AT (1) AT507477B1 (en)
WO (1) WO2011067155A1 (en)

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AT511072B1 (en) * 2011-06-22 2012-09-15 Avl List Gmbh INTERNAL COMBUSTION ENGINE WITH AT LEAST ONE CYLINDER

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AT507477A2 (en) 2010-05-15
US8776758B2 (en) 2014-07-15
CN102667123A (en) 2012-09-12
US20120260883A1 (en) 2012-10-18
CN102667123B (en) 2014-12-10
AT507477B1 (en) 2011-07-15
WO2011067155A1 (en) 2011-06-09
AT507477A3 (en) 2010-09-15

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