EP0483134B1 - Internal combustion engine - Google Patents
Internal combustion engine Download PDFInfo
- Publication number
- EP0483134B1 EP0483134B1 EP89908691A EP89908691A EP0483134B1 EP 0483134 B1 EP0483134 B1 EP 0483134B1 EP 89908691 A EP89908691 A EP 89908691A EP 89908691 A EP89908691 A EP 89908691A EP 0483134 B1 EP0483134 B1 EP 0483134B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder
- combustion engine
- internal
- engine according
- cooling
- 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.)
- Expired - Lifetime
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Classifications
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- 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
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/11—Thermal or acoustic insulation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P3/06—Arrangements for cooling pistons
- F01P3/08—Cooling of piston exterior only, e.g. by jets
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- 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
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- 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
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
Definitions
- An internal combustion engine with circulation cooling according to DE-PS 33 14 543 which cools the cylinder head and the cylinder in the top dead center region of the piston. Cooling and heating should be in balance.
- the circulation cooling is incorporated into the cylinder and cylinder head or provided in the castings. This means that these parts have to be labor-intensive to manufacture or that the castings become more expensive.
- An internal combustion engine is known from US Pat. No. 4,729,347, the cylinders of which are air-cooled in the lower region and the cylinder heads of which are fluid-cooled by a large number of complicated channels. Since the cylinder head material is welded to the cylinder, cooling in this area cannot be carried out through the cooling channels normally machined into the cylinder wall, but an extra ring channel must be created around the cylinder with the help of a separate cylinder jacket.
- the aim of the invention is to improve an internal combustion engine according to the preamble of the main claim in such a way that it is easy to set up, can be built compactly, the individual parts can be manufactured easily and inexpensively, and in thermal terms the cooling function of uniform cooling corresponding to the heating of the Cylinder can be perceived.
- the solution is to dispense with the incorporation of cooling channels for circulating cooling in the cylinder.
- An uncomplicated component is to be used to form the cooling space on the cylinder in the top dead center area of the piston. Such a component should also be able to form the circulation cooling in the cylinder head.
- the component that makes this possible is a sleeve that is slipped over the cylinder. This sleeve can also overlap the cylinder head, so that the cylinder head is placed in this sleeve on the cylinder.
- a heat and sound insulation sleeve is applied to the lower part of the cylinder, so that external thermal influences do not affect the even thermal image of the cylinder.
- This component also has a sound-insulating effect, which can be desirable for free-standing cylinders.
- the cylinder head can be manufactured as simple components without additional processing; in the case of castings, these can be manufactured core-free with regard to circulation cooling. Cooling is ensured in the critical areas of the valve seat and upper piston reversal point. Due to the smaller cross-section of the circulation cooling chamber, which can be minimized to about a tenth in comparison to castings, the cooling can be made effective since a higher circulation speed of the coolant is achieved, or less coolant has to be circulated.
- the sleeve as a component for circulation cooling is not mechanically stressed, since the cap screws do not introduce any forces into it, and is thermally uncritical, since it only takes on the temperature of the coolant at all points, so sealing it is also unproblematic.
- the invention is primarily intended to be used in engines which simultaneously use the lubricating oil as a cooling medium. In this case, there are very simple cycles, the mixing of the oils in the head is not harmful, nor is there a slight leak at the cylinder / head / oil space separation point.
- the cooling sleeve and insulating sleeve can lie within the circumference given by the cap screws without the cap screws being located at a great distance from the cylinder and thus no bending forces being introduced into the head or crankcase.
- the space of the circulating cooling which absorbs the cooling liquid is formed by the easily mountable and removable sleeve, one end of which is sealed to the head and the other end to the cylinder.
- the space formed by the cylinder, head and sleeve can be annular by unscrewing the head plate and the upper outer diameter of the cylinder.
- the sleeve can overlap the cylinder and head or protrude into the head by inserting an annular groove or sit bluntly on the underside of the head.
- the sleeve can be formed from sheet metal or can be designed as a turned part.
- the space of the circulation cooling which receives the cooling liquid can completely enclose the enclosed parts of the head and cylinder, that is to say without ribs or webs.
- both the uniformity of the flow and its speed can be determined will.
- the sealing points can be placed in this construction so that they are neither thermally nor mechanically stressed.
- the thermal and acoustic insulation on the lower cylinder part can be a sleeve, a tubular component or a foamed mass. Further details can be found in the claims.
- the image shows a section of the cross section of an internal combustion engine in the area around the cylinder liner (11). It sits on a collar (21) on the crankcase (20) and is firmly clamped to the cylinder head (10) by means of the tie rod (19) shown here offset.
- the end of the cylinder liner (11) facing the cylinder head (10) is completely surrounded by a coolant jacket (1) in the area of the sealing part (8) of the piston, which does not allow internal cooling of the cylinder liner (11), as is the cylinder head (10 ) in the area of the head plate enclosing the valve seats.
- a cooling sleeve (2) encompassing the components, which rests on the cylinder head (10) via a sealing point (6) and on the cylinder sleeve (11) via a sealing point (7).
- the coolant passes through connection (13) into an annular groove (4) and flows through an annular gap to the annular collecting groove (5) in the cylinder head (10) and from there via bore (14) and (15) in the valve web to further components to be cooled in the cylinder head (10) or to the radiator.
- the dimensioning of the annular gap ensures that the coolant is evenly distributed over the circumference of the components and that the flow rate is high.
- the heat and sound insulation sleeve (16) is cuff-like with screws (18) mounted over the uncooled part of the cylinder liner (11) and separated from it by an insulating intermediate layer (17).
- Both sleeves (2) and (16) do not protrude beyond the largest cylinder liner diameter (12) on the collar (21) neither in the area of the tie rods (19) nor in the area of the neighboring cylinder liner.
- the inner diameter (3) of the cylinder liner (11) can therefore be over 88% of the cylinder distance.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
Description
Es ist eine Brennkraftmaschine mit Umlaufkühlung nach DE-PS 33 14 543 bekannt, welche den Zylinderkopf und im oberen Totpunktbereich des Kolbens den Zylinder kühlt. Kühlung und Aufheizung sollen sich in einem Gleichgewicht befinden. Die Umlaufkühlung ist hierbei in den Zylinder und Zylinderkopf eingearbeitet oder in den Gußteilen vorgesehen. Dadurch ergibt sich, daß diese Teile arbeitsaufwendig hergestellt werden müssen oder sich die Gußteile verteuern. Aus der US-PS 4,729,347 ist eine Verbrennungsmaschine bekannt, deren Zylinder im unteren Bereich luftgekühlt sind und deren Zylinderköpfe durch eine Vielzahl komplizierter Kanäle fluidgekühlt sind. Da das Zylinderkopfmaterial mit dem Zylinder verschweißt ist, kann in diesem Bereich die Kühlung nicht durch die normalerweise in die Zylinderwand eingearbeiteten Kühlkanäle vorgenommen werden, sondern es muß mit Hilfe einer separaten Zylinderumhüllung ein extra Ringkanal um den Zylinder geschaffen werden.An internal combustion engine with circulation cooling according to DE-PS 33 14 543 is known which cools the cylinder head and the cylinder in the top dead center region of the piston. Cooling and heating should be in balance. The circulation cooling is incorporated into the cylinder and cylinder head or provided in the castings. This means that these parts have to be labor-intensive to manufacture or that the castings become more expensive. An internal combustion engine is known from US Pat. No. 4,729,347, the cylinders of which are air-cooled in the lower region and the cylinder heads of which are fluid-cooled by a large number of complicated channels. Since the cylinder head material is welded to the cylinder, cooling in this area cannot be carried out through the cooling channels normally machined into the cylinder wall, but an extra ring channel must be created around the cylinder with the help of a separate cylinder jacket.
Ziel der Erfindung ist es, eine Brennkraftmaschine nach dem Oberbegriff des Hauptanspruchs dahingehend zu verbessern, daß sie einfach aufbaubar ist, kompakt gebaut werden kann, die einzelnen Teile einfach und günstig gefertigt werden können und in thermischer Hinsicht die Kühlfunktion einer gleichmäßigen Kühlung entsprechend der Aufheizung des Zylinders wahrgenommen werden kann.The aim of the invention is to improve an internal combustion engine according to the preamble of the main claim in such a way that it is easy to set up, can be built compactly, the individual parts can be manufactured easily and inexpensively, and in thermal terms the cooling function of uniform cooling corresponding to the heating of the Cylinder can be perceived.
Die Lösung besteht darin, auf die Einarbeitung von Kühlkanälen für die Umlaufkühlung im Zylinder zu verzichten. Darüber hinaus auf die Einarbeitung von Kühlkanälen im Zylinderkopf zu verzichten. Es soll ein unkompliziertes Bauteil zur Bildung des Kühlraumes am Zylinder im oberen Totpunktbereich des Kolbens verwendet werden. Ein solches Bauteil soll auch in der Lage sein, die Umlaufkühlung im Zylinderkopf zu bilden. Das Bauteil, das dies ermöglicht, ist eine Hülse, die über den Zylinder gestülpt wird. Diese Hülse kann auch auf den Zylinderkopf übergreifen, so daß der Zylinderkopf in diese Hülse auf den Zylinder aufgesetzt wird. Weiter wird zur Wahrnehmung der thermischen Ausgewogenheit des Zylinders vor allem bei freistehenden Zylindern eine Wärme- und Schalldämmhülse auf den unteren Teil des Zylinders aufgebracht, damit äußere thermische Einflüsse das gleichmäßige Wärmebild des Zylinders nicht beeinflussen. Dieses Bauteil hat gleichzeitig schallisolierende Wirkung, die bei freistehenden Zylindern erwünscht sein kann.The solution is to dispense with the incorporation of cooling channels for circulating cooling in the cylinder. In addition to the incorporation of cooling channels in the Dispense with cylinder head. An uncomplicated component is to be used to form the cooling space on the cylinder in the top dead center area of the piston. Such a component should also be able to form the circulation cooling in the cylinder head. The component that makes this possible is a sleeve that is slipped over the cylinder. This sleeve can also overlap the cylinder head, so that the cylinder head is placed in this sleeve on the cylinder. Furthermore, to perceive the thermal balance of the cylinder, especially in free-standing cylinders, a heat and sound insulation sleeve is applied to the lower part of the cylinder, so that external thermal influences do not affect the even thermal image of the cylinder. This component also has a sound-insulating effect, which can be desirable for free-standing cylinders.
Die Vorteile aus diesem Aufbau der Brennkraftmaschine ergeben sich wie folgt: Die Zylinder resp. der Zylinderkopf können ohne zusätzliche Bearbeitung als einfache Bauteile hergestellt werden, im Falle von Gußteilen können diese bezüglich der Umlaufkühlung kernlos hergestellt werden. Die Kühlung in den kritischen Bereichen von Ventilsitz und oberen Kolbenumkehrpunkt ist gewährleistet. Durch den geringeren Querschnitt des Umlaufkühlraumes, der im Vergleich zu Gußteilen etwa auf ein Zehntel minimiert werden kann, kann die Kühlung effektiviert werden, da eine höhere Umlaufgeschwindigkeit des Kühlmittels erreicht wird, respektive weniger Kühlmittel umgewälzt werden muß.The advantages of this structure of the internal combustion engine result as follows: the cylinder head can be manufactured as simple components without additional processing; in the case of castings, these can be manufactured core-free with regard to circulation cooling. Cooling is ensured in the critical areas of the valve seat and upper piston reversal point. Due to the smaller cross-section of the circulation cooling chamber, which can be minimized to about a tenth in comparison to castings, the cooling can be made effective since a higher circulation speed of the coolant is achieved, or less coolant has to be circulated.
Durch die durch die Hülse erreichten engeren Querschnitte der Umlaufkühlung kann eine engere Zusammenstellung der Zylinder untereinander erreicht werden. Letzteres fällt bei vielzylindrigen Brennkraftmaschinen ins Gewicht oder es erlaubt eine Vergrößerung der Zylinderbohrungen bei gleicher Baugröße von Brennkraftmaschine.Due to the narrower cross-sections of the circulation cooling achieved by the sleeve, a closer arrangement of the cylinders with one another can be achieved. The latter is important for multi-cylinder internal combustion engines or it allows the cylinder bores to be enlarged for the same size of internal combustion engine.
Die Hülse als Bauteil zur Umlaufkühlung ist mechanisch nicht belastet, da die Kopfschrauben keine Kräfte in diese einleiten, und thermisch unkritisch, da sie an allen Stellen nur die Temperatur des Kühlmittels annimmt, insofern auch deren Abdichtung unproblematisch ist.The sleeve as a component for circulation cooling is not mechanically stressed, since the cap screws do not introduce any forces into it, and is thermally uncritical, since it only takes on the temperature of the coolant at all points, so sealing it is also unproblematic.
Die Erfindung soll in erster Linie zur Anwendung kommen bei Motoren, die das Schmieröl gleichzeitig als Kühlmedium einsetzen. In diesem Fall ergeben sich sehr einfache Kreisläufe, die Vermischung der Öle im Kopf ist nicht schädlich, ebensowenig eine geringe Undichtheit an der Trennstelle Zylinder/Kopf/Ölraum.The invention is primarily intended to be used in engines which simultaneously use the lubricating oil as a cooling medium. In this case, there are very simple cycles, the mixing of the oils in the head is not harmful, nor is there a slight leak at the cylinder / head / oil space separation point.
Durch die Verwendung der Wärme- und Schalldämmhülse ist neben den Vorteilen der Schalldämmung der besondere Vorteil der Wärmedämmung des unteren Zylinderteils bei freistehenden Zylinder gegeben, um bei kalten Außentemperaturen im unteren Zylinderbereich dennoch die Temperaturen zu erreichen, die auch im oberen Zylinderbereich herrschen. Dies ist notwendig für die Dichtheit des Kolbens gegenüber der inneren Zylinderwand, um den Zylinder nicht konisch honen zu müssen.By using the heat and sound insulation sleeve, in addition to the advantages of sound insulation, there is the special advantage of thermal insulation of the lower cylinder part in free-standing cylinders, in order to still achieve the temperatures that prevail in the upper cylinder area in cold outside temperatures in the lower cylinder area. This is necessary for the tightness of the piston against the inner cylinder wall, so that the cylinder does not have to be tapered.
Zu bemerken ist auch, daß durch diese kompakte Bauart Kühlhülse und Dämmhülse innerhalb des durch die Kopfschrauben gegebenen Umfanges liegen kann, ohne daß die Kopfschrauben in großer Entfernung vom Zylinder liegen und somit keine Biegekräfte in Kopf oder Kurbelgehäuse eingeleitet werden.It should also be noted that due to this compact design, the cooling sleeve and insulating sleeve can lie within the circumference given by the cap screws without the cap screws being located at a great distance from the cylinder and thus no bending forces being introduced into the head or crankcase.
Zu möglichen Ausbildungen der Brennkraftmaschine und ihrer Teile sei noch folgendes gesagt:The following may be said about possible designs of the internal combustion engine and its parts:
Der die Kühlflüssigkeit aufnehmende Raum der Umlaufkühlung wird von der leicht montier- und demontierbaren Hülse gebildet, deren eines Ende am Kopf und deren anderes Ende am Zylinder abgedichtet ist. Der durch Zylinder, Kopf und Hülse gebildete Raum kann ringförmig sein durch Freidrehen der Kopfplatte und des oberen Zylinderaußendurchmessers. Die Hülse kann Zylinder und Kopf übergreifen oder durch Einstich einer Ringnut in den Kopf hineinragen oder stumpf auf der Kopfunterseite aufsitzen. Die Hülse kann aus Blech geformt oder auch als Drehteil ausgebildet sein. Der die Kühlflüssigkeit aufnehmende Raum der Umlaufkühlung kann die umschlossenen Teile von Kopf und Zylinder vollständig, das heißt ohne Rippen oder Stege umschließen.The space of the circulating cooling which absorbs the cooling liquid is formed by the easily mountable and removable sleeve, one end of which is sealed to the head and the other end to the cylinder. The space formed by the cylinder, head and sleeve can be annular by unscrewing the head plate and the upper outer diameter of the cylinder. The sleeve can overlap the cylinder and head or protrude into the head by inserting an annular groove or sit bluntly on the underside of the head. The sleeve can be formed from sheet metal or can be designed as a turned part. The space of the circulation cooling which receives the cooling liquid can completely enclose the enclosed parts of the head and cylinder, that is to say without ribs or webs.
Durch Bemessung des Spaltes zwischen Zylinderaußendurchmesser und Hülseninnendurchmesser kann sowohl die Gleichmäßigkeit der Umströmung wie deren Geschwindigkeit festgelegt werden. Die Dichtstellen können bei dieser Konstruktion so gelegt werden, daß sie weder thermisch noch mechanisch beansprucht sind.By dimensioning the gap between the outer diameter of the cylinder and the inner diameter of the sleeve, both the uniformity of the flow and its speed can be determined will. The sealing points can be placed in this construction so that they are neither thermally nor mechanically stressed.
Die Wärme- und Schalldämmung am unteren Zylinderteil kann eine Manschette, ein rohrförmiges Bauteil oder auch eine aufgeschäumte Masse sein. Weitere Einzelheiten sind den Ansprüchen zu entnehmen.The thermal and acoustic insulation on the lower cylinder part can be a sleeve, a tubular component or a foamed mass. Further details can be found in the claims.
Es folgt ein Ausführungsbeispiel:An embodiment follows:
Das Bild zeigt ausschnittsweise den Querschnitt eines Verbrennungsmotors im Bereich um die Zylinderbuchse (11). Diese sitzt über einem Bund (21) auf dem Kurbelgehäuse (20) auf und über den - hier versetzt gezeichneten - Zuganker (19) fest mit Zylinderkopf (10) verspannt.The image shows a section of the cross section of an internal combustion engine in the area around the cylinder liner (11). It sits on a collar (21) on the crankcase (20) and is firmly clamped to the cylinder head (10) by means of the tie rod (19) shown here offset.
Das dem Zylinderkopf (10) zugewandte Ende der Zylinderbuchse (11) wird im Bereich der Dichtpartie (8) des Kolbens, die eine innere Kühlung der Zylinderbuchse (11) nicht ermöglicht, vollständing von einem Kühlmittelmantel (1) umgeben, ebenso der Zylinderkopf (10) im Bereich der die Ventilsitze einschließenden Kopfplatte. Das wird erreicht durch eine bauteilumschließende Kühlhülse (2), die über Dichtstelle (6) am Zylinderkopf (10) anliegt und über Dichtstelle (7) an der Zylinderbuchse (11). Das Kühlmittel tritt über Anschluß (13) in eine Ringnut (4) und fließt über einen Ringspalt zur Ringsammelnut (5) im Zylinderkopf (10) und von dort über Bohrung (14) und (15) im Ventilsteg zu weiteren zu kühlenden Bauteilen im Zylinderkopf (10) oder zum Kühler. Die Bemessung des Ringspaltes sorgt für die gleichmäßige Verteilung des Kühlmittels über den Bauteile-Umfang sowie für hohe Strömungsgeschwindigkeit. Die Wärme- und Schalldämmungshülse (16) ist manschettenartig mit Schrauben (18) über den ungekühlten Teil der Zylinderbuchse (11) montiert und durch eine isolierende Zwischenlage (17) von dieser getrennt.The end of the cylinder liner (11) facing the cylinder head (10) is completely surrounded by a coolant jacket (1) in the area of the sealing part (8) of the piston, which does not allow internal cooling of the cylinder liner (11), as is the cylinder head (10 ) in the area of the head plate enclosing the valve seats. This is achieved by a cooling sleeve (2) encompassing the components, which rests on the cylinder head (10) via a sealing point (6) and on the cylinder sleeve (11) via a sealing point (7). The coolant passes through connection (13) into an annular groove (4) and flows through an annular gap to the annular collecting groove (5) in the cylinder head (10) and from there via bore (14) and (15) in the valve web to further components to be cooled in the cylinder head (10) or to the radiator. The dimensioning of the annular gap ensures that the coolant is evenly distributed over the circumference of the components and that the flow rate is high. The heat and sound insulation sleeve (16) is cuff-like with screws (18) mounted over the uncooled part of the cylinder liner (11) and separated from it by an insulating intermediate layer (17).
Beide Hülsen (2) und (16) ragen weder im Bereich der Zuganker (19) noch im Bereich zur Nachbarzylinderbuchse über den größten Zylinderbuchsendurchmesser (12) am Bund (21) hinaus. Der innere Durchmesser (3) der Zylinderbuchse (11) kann deshalb über 88 % des Zylinderabstandes betragen.Both sleeves (2) and (16) do not protrude beyond the largest cylinder liner diameter (12) on the collar (21) neither in the area of the tie rods (19) nor in the area of the neighboring cylinder liner. The inner diameter (3) of the cylinder liner (11) can therefore be over 88% of the cylinder distance.
Claims (13)
- Internal-combustion engine of high unit output with a cooling circuit for the cylinder head 10 and cylinders in the region of top dead centre of the pistons, and with internal piston cooling by oil spraying in the lower region of the cylinders, characterized thereby, that where cylinder barrels 11 without built-in cooling channels and cast cylinder heads without a cooling core 10 are used, easily mount-and detachable jackets 2 are mounted over the cylinder barrels. The jacket end is sealed on the cylinder head 10 and the cylinder barrel 11, while the jackets 2 limits the chambers 1,4 for the accumulation of cooling liquid for the cooling circuit.
- Internal-combustion engine according to claim 1, characterized thereby, that the cylinder head 10 is placed flush on the cylinder barrel.
- Internal-combustion engine according to claim 1, characterized thereby, that mountable, individual components are used as cylinder barrels 11.
- Internal-combustion engine according to one or several of the preceding claims, characterized thereby, that cylinder barrels 11 of steel tubing or castings are used.
- Internal-combustion engine according to one or several of the preceding claims, characterized thereby, that free-standing cylinder barrels 11 are used.
- Internal-combustion engine according to one or several of the preceding claims, characterized thereby, that the jacket 2 is provided with a seal 6,7 at both the cylinder barrel 11 and the head 10.
- Internal-combustion engine according to one or several of the preceding claims, characterized thereby, that the outer diameter of the cylinder barrel 11 is reduced in the region of the jacket 2 so that the jacket is flush with the remainder of the outer wall of the cylinder barrel 11.
- Internal-combustion engine according to one or several of the preceding claims, characterized thereby, that the jacket 2 overlaps both the region of the cylinder barrel at top dead centre of the piston and the valve seat region of the cylinder head 10.
- Internal-combustion engine according to one or several of the preceding claims, characterized thereby, that the lower part of the cooling chamber defined by the jacket 2 has a larger cross section than the overlying part.
- Internal-combustion engine according to the preamble of claim 1, characterized thereby, that the cylinder barrel 11 is provided with a protective acoustical and/or thermal liner 16 in the lower region.
- Internal-combustion engine according to claim 10, characterized thereby, that the liner 16 is a tubular component which is pushed onto the cylinder barrel.
- Internal-combustion engine according to claim 10 characterized thereby, that the liner 16 is wrapped around the barrel, and appropriately secured.
- Internal-combustion engine according to claim 10, characterized thereby, that the liner 16 is fixed to the barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT89908691T ATE90774T1 (en) | 1988-07-29 | 1989-07-28 | COMBUSTION ENGINE. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3825961 | 1988-07-29 | ||
| DE3825961 | 1988-07-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0483134A1 EP0483134A1 (en) | 1992-05-06 |
| EP0483134B1 true EP0483134B1 (en) | 1993-06-16 |
Family
ID=6359921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP89908691A Expired - Lifetime EP0483134B1 (en) | 1988-07-29 | 1989-07-28 | Internal combustion engine |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5239949A (en) |
| EP (1) | EP0483134B1 (en) |
| AU (1) | AU3988689A (en) |
| BR (1) | BR8907587A (en) |
| DE (1) | DE58904755D1 (en) |
| WO (1) | WO1990001632A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005026599B4 (en) * | 2005-06-09 | 2007-07-12 | Man Diesel Se | Internal combustion engine |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7299770B2 (en) * | 2006-04-10 | 2007-11-27 | Thorpe Douglas G | Evaporative in-cylinder cooling |
| US7255067B1 (en) | 2006-04-10 | 2007-08-14 | Thorpe Douglas G | Evaporative in-cylinder cooling |
| CN105649747B (en) * | 2016-01-06 | 2018-08-07 | 潍柴动力股份有限公司 | A kind of automatically controlled piston cooling nozzle control method and system |
| DE102018009442B3 (en) * | 2018-12-01 | 2020-04-16 | Otto-Von-Guericke-Universität Magdeburg | Cylinder assembly and method of cooling the cylinder assembly |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE133985C (en) * | ||||
| US1413372A (en) * | 1919-10-06 | 1922-04-18 | Andres George Samuel | Cylinder construction |
| US2500085A (en) * | 1943-08-13 | 1950-03-07 | Milliken Humphreys | Engine |
| US2736300A (en) * | 1951-06-05 | 1956-02-28 | Gen Motors Corp | Engine cylinder construction |
| FR1587405A (en) * | 1968-10-01 | 1970-03-20 | ||
| US3882842A (en) * | 1974-01-28 | 1975-05-13 | Caterpillar Tractor Co | Cylinder liner support |
| GB2069046A (en) * | 1980-02-07 | 1981-08-19 | Leyland Vehicles | Internal combustion engine cylinder oil cooling |
| DE3134771C2 (en) * | 1981-09-02 | 1983-10-20 | Deutsche Forschungs- und Versuchsanstalt für Luft- und Raumfahrt e.V., 5300 Bonn | Cylinder liner for internal combustion piston engines |
| AT379869B (en) * | 1983-03-29 | 1986-03-10 | Avl Verbrennungskraft Messtech | TWO-STROKE COMBUSTION ENGINE |
| DE3314543A1 (en) * | 1983-04-21 | 1984-10-25 | Ludwig Ing.(grad.) 8543 Hilpoltstein Elsbett | Common internal and external cooling of an internal-combustion engine |
| DE3326320C2 (en) * | 1983-07-21 | 1990-10-04 | Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart | Piston internal combustion engine with a wet cylinder liner inserted into a cylinder crankcase |
| US4895111A (en) * | 1984-03-13 | 1990-01-23 | Elsbett L | Engine cooling system |
| US4542719A (en) * | 1984-07-25 | 1985-09-24 | Teledyne Industries, Inc. | Engine cooling system |
| DE3613099A1 (en) * | 1986-04-18 | 1987-10-29 | Audi Ag | Method for the thermal insulation of the cylinder walls of a water-cooled cylinder block of a reciprocating piston internal combustion engine |
| DE3633513A1 (en) * | 1986-10-02 | 1988-04-14 | Kloeckner Humboldt Deutz Ag | Air-cooled internal combustion engine |
| US4729347A (en) * | 1986-10-27 | 1988-03-08 | Schmitz Donald L | Internal combustion chamber |
| US4796572A (en) * | 1987-06-01 | 1989-01-10 | The United States Of America As Represented By The Secretary Of The Army | Combustion chamber liner |
| US4926801A (en) * | 1987-12-22 | 1990-05-22 | Mack Trucks, Inc. | Wet/dry cylinder liner for high output engines |
| US4867119A (en) * | 1988-10-21 | 1989-09-19 | Caterpillar Inc. | Engine piston assembly and forged piston member therefor having a cooling recess |
-
1989
- 1989-07-28 EP EP89908691A patent/EP0483134B1/en not_active Expired - Lifetime
- 1989-07-28 US US07/646,782 patent/US5239949A/en not_active Expired - Fee Related
- 1989-07-28 BR BR898907587A patent/BR8907587A/en not_active IP Right Cessation
- 1989-07-28 WO PCT/DE1989/000496 patent/WO1990001632A1/en active IP Right Grant
- 1989-07-28 AU AU39886/89A patent/AU3988689A/en not_active Abandoned
- 1989-07-28 DE DE8989908691T patent/DE58904755D1/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005026599B4 (en) * | 2005-06-09 | 2007-07-12 | Man Diesel Se | Internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| DE58904755D1 (en) | 1993-07-22 |
| EP0483134A1 (en) | 1992-05-06 |
| WO1990001632A1 (en) | 1990-02-22 |
| BR8907587A (en) | 1991-07-30 |
| AU3988689A (en) | 1990-03-05 |
| US5239949A (en) | 1993-08-31 |
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