EP1336746A1 - Cylinder block and pressure casting method for its fabrication - Google Patents
Cylinder block and pressure casting method for its fabrication Download PDFInfo
- Publication number
- EP1336746A1 EP1336746A1 EP02100142A EP02100142A EP1336746A1 EP 1336746 A1 EP1336746 A1 EP 1336746A1 EP 02100142 A EP02100142 A EP 02100142A EP 02100142 A EP02100142 A EP 02100142A EP 1336746 A1 EP1336746 A1 EP 1336746A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder block
- cylinder
- water jacket
- block core
- core
- 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.)
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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
- F02F1/00—Cylinders; Cylinder heads
- F02F1/02—Cylinders; Cylinder heads having cooling means
- F02F1/10—Cylinders; Cylinder heads having cooling means for liquid cooling
- F02F1/14—Cylinders with means for directing, guiding or distributing liquid stream
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/0009—Cylinders, pistons
-
- 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
- F02F1/108—Siamese-type cylinders, i.e. cylinders cast together
-
- 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
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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
- F02B75/00—Other engines
- F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
- F02B75/18—Multi-cylinder engines
- F02B2075/1804—Number of cylinders
- F02B2075/1816—Number of cylinders four
-
- 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
- F02F2001/106—Cylinders; Cylinder heads having cooling means for liquid cooling using a closed deck, i.e. the water jacket is not open at the block top face
Definitions
- the invention relates to a cylinder block of the closed-deck type, containing one cast cylinder block core with at least one cylinder and a water jacket.
- the invention further relates to a method for producing such Cylinder block.
- From DE 28 36 810 A1 is a cylinder block made in light metal die casting known from the so-called closed-deck type.
- the cylinder block has several Cylinder for receiving the piston of an internal combustion engine, the cylinder are surrounded by a water jacket for cooling.
- the execution of the Cylinder blocks in the closed-deck form state that the water jacket is facing up is closed - except for possible smaller openings.
- the water jackets for cylinder blocks extend from open-deck type up to the top of the cylinder block, so that this from later mounted cylinder head must also be covered and sealed. This Sealing is usually very prone to failure and expensive.
- cylinder blocks have of the open-deck type a structurally lower stability and Stiffness.
- Theoretically is from DE 28 36 810 A1 also a die-cast process Embodiment of a cylinder block of the closed-deck type known, at which the water jacket is open on the underside towards the crankcase.
- an object of the present invention was an option that can be used in practice for producing a cylinder block of the closed-deck type in the die casting process.
- the closed-deck type cylinder block of the present invention includes a cast one Cylinder block core with at least one cylinder and with a water jacket.
- the cylinder block is characterized in that the cylinder block core does not surround the water jacket on the outside facing away from the cylinder.
- the water jacket is therefore not on it Narrow side up (open deck) or down (DE 28 36 810 A1) open, but this is more or less completely open to the outside.
- This allows the cylinder block core to be manufactured in a die casting process which enables cost-effective mass production of the cylinder block becomes.
- the cylinder block has the advantages of the closed-deck type, So a simpler and better sealing of the cylinder by the cylinder head as well as greater rigidity of the cylinder block.
- the one facing away from the cylinder Side can additionally or alternatively also by reinforcing ribs be designed so that by the combustion pressure and / or by screw forces occurring cylinder deformations are reduced.
- the cylinder block preferably has one connected to the cylinder block core Cover on which the water jacket on the side facing away from the cylinder closes.
- the cover consists of one Material consists of good heat conduction properties with high stability having.
- the cover can be a water jacket be shaped or profiled in such a way that the flow and / or the heat distribution in the water jacket is optimized.
- the cover By being a relative large side wall surface of the water jacket through the separate cover is formed, it is possible to give this surface an optimal shape, without the manufacturing limitations of a cast manufacturing process to be subject.
- the water jacket of the cylinder block preferably extends over the top approx. 20 to 50% of the height of the cylinder. This is the main area of focus the heat of combustion, so that good cooling is important here.
- the cylinder block core comprises in one piece also a crankcase, which surrounds the crankshaft.
- the cylinder block core advantageously consists of a light metal, which can be aluminum in particular.
- the invention further relates to a method for producing a cylinder block of the type explained above, which is characterized in that the cylinder block core is produced in a die casting process. Furthermore, the side open water jacket through corresponding projections in the die casting mold trained, or this is from the completion of the die casting process the castings obtained.
- Advantageous in this manufacturing process is the use of a die casting process, which is an inexpensive mass production allowed.
- a cylinder block core is used side cover of the water jacket connected. This connection can in particular done by screwing. Because the water jacket on its open side is closed by its own cover and not how in the case of open-deck forms that have to be closed by the cylinder head, the Design of the corresponding interfaces optimal in relation to the (smaller) Requirements of a water jacket seal are made.
- the figures show a one-piece cylinder block core 1 of a four-cylinder in-line engine.
- the cylinder block core 1 has four in contact with each other ("Siamese") cylinder 2, at the lower end of which a crankcase 4 is attached is.
- Siamese cylinder 2
- On the outward-facing side surfaces of the cylinder is a cavity a water jacket 3 is formed, the top 7 of which is shot.
- at the cylinder block core 1 is therefore one of the closed deck Type, which by a higher stability and less problems with the sealing is characterized by the cylinder head (not shown).
- the water jacket 3 is open to the side of the cylinder block core 1 educated. This makes it possible to die-cast the cylinder block core 1 to manufacture and at the same time to realize the closed-deck shape.
- the Formation of the cavities of the water jacket 3 can be done by appropriate Protrusions are made in the die. Alternatively, the water jacket can be removed Completion of the die casting milled into the cylinder block core from the side become.
- boreholes 8 with an internal thread are provided on the side in the cylinder block core, over each of which a cover 9 (only one is shown in FIGS. 2 and 3) made of sheet metal or another suitable material onto the water coats can be screwed on.
- This cover 9 is preferably on their inside shaped and designed so that these the water flow and optimizes the heat distribution.
- the sectional view of Figure 2 also shows the between two cylinders 2 located chambers 6 of the water jacket and the screw holes 5 running parallel to the cylinders 2 for the cylinder head.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
Description
Die Erfindung betrifft einen Zylinderblock vom closed-deck Typ, enthaltend einen gegossenen Zylinderblockkern mit mindestens einem Zylinder und einem Wassermantel. Ferner betrifft die Erfindung ein Verfahren zur Herstellung eines derartigen Zylinderblocks.The invention relates to a cylinder block of the closed-deck type, containing one cast cylinder block core with at least one cylinder and a water jacket. The invention further relates to a method for producing such Cylinder block.
Aus der DE 28 36 810 A1 ist ein im Leichtmetall-Druckguß hergestellter Zylinderblock vom sogenannten closed-deck Typ bekannt. Der Zylinderblock weist mehrere Zylinder zur Aufnahme der Kolben einer Brennkraftmaschine auf, wobei die Zylinder zur Kühlung von einem Wassermantel umgeben sind. Die Ausführung des Zylinderblocks in der closed-deck Form besagt, daß der Wassermantel nach oben hin - bis auf eventuelle kleinere Durchlässe - geschlossen ist.From DE 28 36 810 A1 is a cylinder block made in light metal die casting known from the so-called closed-deck type. The cylinder block has several Cylinder for receiving the piston of an internal combustion engine, the cylinder are surrounded by a water jacket for cooling. The execution of the Cylinder blocks in the closed-deck form state that the water jacket is facing up is closed - except for possible smaller openings.
Im Gegensatz hierzu erstrecken sich die Wassermäntel bei Zylinderblöcken vom open-deck Typ bis zur Oberseite des Zylinderblockes, so daß diese vom später aufgesetzten Zylinderkopf mit abgedeckt und gedichtet werden müssen. Diese Abdichtung ist in der Regel sehr störanfällig und aufwendig. Weiterhin weisen Zylinderblöcke vom open-deck Typ eine strukturell bedingte geringere Stabilität und Steifigkeit auf. Da jedoch die Herstellung eines Zylinderblockes vom closed-deck Typ im Druckgußverfahren große Probleme bereitet, werden mit diesem Verfahren bisher fast ausschließlich Zylinderblöcke vom open-deck Typ hergestellt. Theoretisch ist indes aus der DE 28 36 810 A1 auch eine im Druckgußverfahren hergestellte Ausführungsform eines Zylinderblockes vom closed-deck Typ bekannt, bei der der Wassermantel an der Unterseite zum Kurbelgehäuse hin offen ist.In contrast, the water jackets for cylinder blocks extend from open-deck type up to the top of the cylinder block, so that this from later mounted cylinder head must also be covered and sealed. This Sealing is usually very prone to failure and expensive. Furthermore, cylinder blocks have of the open-deck type a structurally lower stability and Stiffness. However, since the manufacture of a cylinder block from the closed deck Type in the die casting process causes great problems with this process So far, almost exclusively cylinder blocks of the open-deck type have been manufactured. Theoretically is from DE 28 36 810 A1 also a die-cast process Embodiment of a cylinder block of the closed-deck type known, at which the water jacket is open on the underside towards the crankcase.
Vor diesem Hintergrund bestand eine Aufgabe der vorliegenden Erfindung darin, eine in der Praxis anwendbare Möglichkeit zur Herstellung eines Zylinderblockes vom closed-deck Typ im Druckgußverfahren bereitzustellen. Against this background, an object of the present invention was an option that can be used in practice for producing a cylinder block of the closed-deck type in the die casting process.
Diese Aufgabe wird durch einen Zylinderblock mit den Merkmalen des Anspruchs
1 sowie durch ein Verfahren mit den Merkmalen des Anspruchs 9 gelöst.This object is achieved by a cylinder block with the features of the
Vorteilhafte Ausgestaltungen sind in den Unteransprüchen enthalten.Advantageous refinements are contained in the subclaims.
Der erfindungsgemäße Zylinderblock vom closed-deck Typ enthält einen gegossenen Zylinderblockkern mit mindestens einem Zylinder und mit einem Wassermantel. Der Zylinderblock ist dadurch gekennzeichnet, daß der Zylinderblockkern den Wassermantel an der vom Zylinder abgewandten Außenseite nicht umgibt.The closed-deck type cylinder block of the present invention includes a cast one Cylinder block core with at least one cylinder and with a water jacket. The cylinder block is characterized in that the cylinder block core does not surround the water jacket on the outside facing away from the cylinder.
Bei dem vorgeschlagenen Zylinderblock ist somit der Wassermantel nicht an seiner Schmalseite nach oben (open-deck) oder nach unten (DE 28 36 810 A1) hin offen, sondern dieser ist mehr oder weniger vollständig zur Außenseite hin offen. Dies erlaubt es, den Zylinderblockkern in einem Druckgußverfahren herzustellen, wodurch eine kostengünstige Massenproduktion des Zylinderblockes möglich wird. Gleichzeitig weist der Zylinderblock die Vorteile des closed-deck Typs auf, also eine einfachere und bessere Abdichtung der Zylinder durch den Zylinderkopf sowie eine größere Steifigkeit des Zylinderblocks.In the proposed cylinder block, the water jacket is therefore not on it Narrow side up (open deck) or down (DE 28 36 810 A1) open, but this is more or less completely open to the outside. This allows the cylinder block core to be manufactured in a die casting process which enables cost-effective mass production of the cylinder block becomes. At the same time, the cylinder block has the advantages of the closed-deck type, So a simpler and better sealing of the cylinder by the cylinder head as well as greater rigidity of the cylinder block.
Bei einer weiteren vorteilhaften Ausgestaltung der Erfindung wird die vom Zylinder abgewandte Seite, also die im Wasser befindliche Seite so gestaltet, daß eine verbesserte Kühlung, z. B. durch Kühlrippen, erfolgen kann. Die vom Zylinder abgewandte Seite kann zusätzlich oder alternativ auch durch Verstärkungsrippen so gestaltet werden, daß die durch den Verbrennungsdruck und/oder durch Schraubenkräfte auftretenden Zylinderverformungen verringert werden.In a further advantageous embodiment of the invention, the cylinder facing away, so the side in the water designed so that a improved cooling, e.g. B. can be done by cooling fins. The one facing away from the cylinder Side can additionally or alternatively also by reinforcing ribs be designed so that by the combustion pressure and / or by screw forces occurring cylinder deformations are reduced.
Vorzugsweise weist der Zylinderblock eine mit dem Zylinderblockkern verbundene Abdeckung auf, welche den Wassermantel an der vom Zylinder abgewandten Seite verschließt. Durch diese Abdeckung wird somit die aus herstellungstechnischen Gründen im Gußverfahren offen zu lassende Seite des Wassermantels verschlossen. Da die betreffende Seite weder extremen Druck noch extremen Temperaturbelastungen ausgesetzt ist, sind an die Abdeckung keine außergewöhnlich hohen Anforderungen zu stellen. Vorteilhaft ist es jedoch, wenn die Abdeckung aus einem Werkstoff besteht, der bei hoher Stabilität gute Wärmeleitungseigenschaften aufweist.The cylinder block preferably has one connected to the cylinder block core Cover on which the water jacket on the side facing away from the cylinder closes. Through this cover, the manufacturing technology For reasons of casting, the side of the water jacket to be left open is closed. Because the page in question is neither extreme pressure nor extreme temperature loads exposed to the cover are not exceptionally high To make demands. However, it is advantageous if the cover consists of one Material consists of good heat conduction properties with high stability having.
Gemäß einer Weiterbildung der Erfindung kann die Abdeckung zum Wassermantel hin derart geformt beziehungsweise profiliert sein, daß die Strömung und/oder die Wärmeverteilung im Wassermantel optimiert wird. Dadurch, daß eine verhältnismäßig große seitliche Wandfläche des Wassermantels durch die separate Abdeckung gebildet wird, ist es möglich, dieser Fläche eine optimale Form zu verleihen, ohne dabei den fertigungstechnischen Grenzen eines gußtechnischen Herstellungsverfahrens unterworfen zu sein.According to a development of the invention, the cover can be a water jacket be shaped or profiled in such a way that the flow and / or the heat distribution in the water jacket is optimized. By being a relative large side wall surface of the water jacket through the separate cover is formed, it is possible to give this surface an optimal shape, without the manufacturing limitations of a cast manufacturing process to be subject.
Der Wassermantel des Zylinderblockes erstreckt sich vorzugsweise über die oberen ca. 20 bis 50% der Höhe des Zylinders. In diesem Bereich entsteht schwerpunktmäßig die Verbrennungswärme, so daß es hier auf eine gute Kühlung ankommt.The water jacket of the cylinder block preferably extends over the top approx. 20 to 50% of the height of the cylinder. This is the main area of focus the heat of combustion, so that good cooling is important here.
Gemäß einer bevorzugten Ausgestaltung des Zylinderblockes umfaßt der Zylinderblockkern einstückig auch ein Kurbelgehäuse, welches die Kurbelwelle umgibt.According to a preferred embodiment of the cylinder block, the cylinder block core comprises in one piece also a crankcase, which surrounds the crankshaft.
Weiterhin besteht der Zylinderblockkern vorteilhafterweise aus einem Leichtmetall, bei dem es sich insbesondere um Aluminium handeln kann.Furthermore, the cylinder block core advantageously consists of a light metal, which can be aluminum in particular.
Die Erfindung betrifft ferner ein Verfahren zur Herstellung eines Zylinderblockes der vorstehend erläuterten Art, welches dadurch gekennzeichnet ist, daß der Zylinderblockkern in einem Druckgußverfahren hergestellt wird. Ferner wird der seitlich offene Wassermantel durch entsprechende Vorsprünge in der Druckgußform ausgebildet, oder dieser wird aus dem nach Abschluß des Druckgußverfahrens erhaltenen Gießling herausgearbeitet. Vorteilhaft bei diesem Herstellungsverfahren ist der Einsatz eines Druckgußverfahrens, welches eine kostengünstige Massenherstellung erlaubt. The invention further relates to a method for producing a cylinder block of the type explained above, which is characterized in that the cylinder block core is produced in a die casting process. Furthermore, the side open water jacket through corresponding projections in the die casting mold trained, or this is from the completion of the die casting process the castings obtained. Advantageous in this manufacturing process is the use of a die casting process, which is an inexpensive mass production allowed.
Gemäß einer Weiterbildung des Verfahrens wird mit dem Zylinderblockkern eine seitliche Abdeckung des Wassermantels verbunden. Diese Verbindung kann insbesondere durch Verschrauben geschehen. Dadurch, daß der Wassermantel an seiner offenen Seite durch eine eigene Abdeckung geschlossen wird und nicht wie bei open-deck Formen vom Zylinderkopf verschlossen werden muß, kann die Ausgestaltung der entsprechenden Grenzflächen optimal in Bezug auf die (geringeren) Anforderungen einer Wassermanteldichtung vorgenommen werden.According to a further development of the method, a cylinder block core is used side cover of the water jacket connected. This connection can in particular done by screwing. Because the water jacket on its open side is closed by its own cover and not how in the case of open-deck forms that have to be closed by the cylinder head, the Design of the corresponding interfaces optimal in relation to the (smaller) Requirements of a water jacket seal are made.
Die Erfindung wird nachfolgend anhand der Figuren beispielhaft näher erläutert.
Es zeigen:
- Fig. 1
- perspektivisch den Zylinderblockkern eines erfindungsgemäßen Zylinderblockes,
- Fig. 2
- einen Schnitt entlang der Linie II-II von
Figur 1, und - Fig. 3
- einen Schnitt entlang der Linie III-III von
Figur 1.
Show it:
- Fig. 1
- perspective the cylinder block core of a cylinder block according to the invention,
- Fig. 2
- a section along the line II-II of Figure 1, and
- Fig. 3
- a section along the line III-III of Figure 1.
Die Figuren zeigen einen einstückigen Zylinderblockkern 1 eines Vierzylinder-Reihenmotors.
Der Zylinderblockkern 1 weist vier miteinander in Kontakt stehende
("siamesische") Zylinder 2 auf, an deren unterem Ende ein Kurbelgehäuse 4 angesetzt
ist. An den nach außen weisenden Seitenflächen der Zylinder ist als Hohlraum
ein Wassermantel 3 ausgebildet, dessen Oberseite 7 geschossen ist. Bei
dem Zylinderblockkern 1 handelt es sich also um einen solchen vom closed-deck
Typ, welcher durch eine höhere Stabilität und geringere Probleme bei der Abdichtung
durch den Zylinderkopf (nicht dargestellt) gekennzeichnet ist.The figures show a one-piece
Der Wassermantel 3 ist erfindungsgemäß zur Seite des Zylinderblockkerns 1 offen
ausgebildet. Hierdurch wird es möglich, den Zylinderblockkern 1 im Druckgußverfahren
herzustellen und gleichzeitig die closed-deck Form zu verwirklichen. Die
Ausbildung der Hohlräume des Wassermantels 3 kann dabei durch entsprechende
Vorsprünge in der Druckgußform erfolgen. Alternativ kann der Wassermantel nach
Fertigstellung des Druckgusses von der Seite her in den Zylinderblockkern eingefräst
werden.According to the invention, the
Weiterhin sind seitlich im Zylinderblockkern Bohrlöcher 8 mit Innengewinde vorgesehen,
über welche je eine Abdeckung 9 (nur eine ist in den Figuren 2 und 3 dargestellt)
aus Metallblech oder einem anderen geeigneten Material auf die Wassermäntel
aufgeschraubt werden kann. Vorzugsweise ist diese Abdeckung 9 an
ihrer Innenseite so geformt und derart ausgebildet, daß diese den Wasserfluß und
die Wärmeverteilung optimiert. Die Schnittansicht von Figur 2 zeigt ferner die zwischen
zwei Zylindern 2 befindlichen Kammern 6 des Wassermantels sowie die
parallel zu den Zylindern 2 verlaufenden Schraubenlöcher 5 für den Zylinderkopf.Furthermore,
Claims (10)
dadurch gekennzeichnet, daß
der Zylinderblockkern (1) den Wassermantel (3) an der vom Zylinder (2) abgewandten Außenseite nicht umgibt.Cylinder block of the closed-deck type, comprising a cast cylinder block core (1) with at least one cylinder (2) and a water jacket (3),
characterized in that
the cylinder block core (1) does not surround the water jacket (3) on the outside facing away from the cylinder (2).
dadurch gekennzeichnet, daß
der Zylinderblockkern (1) im Druckgußverfahren hergestellt ist.Cylinder block according to claim 1,
characterized in that
the cylinder block core (1) is made by die casting.
dadurch gekennzeichnet, daß
der Zylinderblockkern (1) an der vom Zylinder (2) abgewandten Außenseite Verstärkungs- und/oder Kühlrippen aufweist.Cylinder block according to claim 1 or 2,
characterized in that
the cylinder block core (1) has reinforcing and / or cooling fins on the outside facing away from the cylinder (2).
dadurch gekennzeichnet, daß
er eine mit dem Zylinderblockkern (1) verbundene Abdeckung (9) aufweist, welche den Wassermantel (3) an der vom Zylinder (2) abgewandten Außenseite verschließt. Cylinder block according to claim 1, 2 or 3,
characterized in that
it has a cover (9) connected to the cylinder block core (1) which closes the water jacket (3) on the outside facing away from the cylinder (2).
dadurch gekennzeichnet, daß
die Abdeckung (9) zum Wassermantel (3) hin so geformt ist, dass die Strömung im Wassermantel und/oder die Wärmeverteilung optimiert wird.Cylinder block according to claim 4,
characterized in that
the cover (9) towards the water jacket (3) is shaped such that the flow in the water jacket and / or the heat distribution is optimized.
dadurch gekennzeichnet, daß
der Wassermantel (3) sich über die oberen 20 bis 50% der Zylinderhöhe erstreckt.Cylinder block according to one of claims 1 to 5,
characterized in that
the water jacket (3) extends over the upper 20 to 50% of the cylinder height.
dadurch gekennzeichnet, daß
der Zylinderblockkern (1) ein Kurbelgehäuse (4) umfasst.Cylinder block according to one of claims 1 to 6,
characterized in that
the cylinder block core (1) comprises a crankcase (4).
dadurch gekennzeichnet, daß
der Zylinderblockkern (1) aus Leichtmetall, vorzugsweise aus Aluminium besteht.Cylinder block according to at least one of claims 1 to 7,
characterized in that
the cylinder block core (1) consists of light metal, preferably aluminum.
dadurch gekennzeichnet, daß
der Zylinderblockkern (1) im Druckgussverfahren hergestellt wird, und daß der seitlich offene Wassermantel (3) durch die Druckgußform ausgespart und/oder aus dem erhaltenen Gießling herausgearbeitet wird. Method for producing a cylinder block according to one of claims 1 to 8,
characterized in that
the cylinder block core (1) is produced in the die casting process, and that the laterally open water jacket (3) is cut out by the die casting mold and / or is worked out of the casting obtained.
dadurch gekennzeichnet, daß
mit dem Zylinderblockkern (1) eine seitliche Abdeckung (9) des Wassermantels (3) verbunden, vorzugsweise verschraubt wird.Method according to claim 9,
characterized in that
with the cylinder block core (1) a side cover (9) of the water jacket (3) is connected, preferably screwed.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02100142A EP1336746A1 (en) | 2002-02-19 | 2002-02-19 | Cylinder block and pressure casting method for its fabrication |
US10/248,796 US6886505B2 (en) | 2002-02-19 | 2003-02-19 | Cylinder block and die-casting method for producing same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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EP02100142A EP1336746A1 (en) | 2002-02-19 | 2002-02-19 | Cylinder block and pressure casting method for its fabrication |
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EP1336746A1 true EP1336746A1 (en) | 2003-08-20 |
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ID=27619179
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EP02100142A Withdrawn EP1336746A1 (en) | 2002-02-19 | 2002-02-19 | Cylinder block and pressure casting method for its fabrication |
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EP (1) | EP1336746A1 (en) |
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US10443470B2 (en) | 2014-11-21 | 2019-10-15 | Cummins Emission Solutions, Inc. | Nitrogen oxide signal multiplexing system |
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JP4262564B2 (en) * | 2003-10-10 | 2009-05-13 | 日産自動車株式会社 | Internal combustion engine cylinder block |
US7216612B2 (en) * | 2005-08-05 | 2007-05-15 | Yamaha Hatsudoki Kabushiki Kaisha | Internal combustion engine having cylinder formed with water jacket and vehicle provided with the same |
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US8820389B1 (en) | 2012-10-31 | 2014-09-02 | Brunswick Corporation | Composite core for the casting of engine head decks |
US10371087B2 (en) | 2015-08-11 | 2019-08-06 | Exco Engineering | Die cast closed deck engine block manufacture |
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CN104812511A (en) * | 2012-11-27 | 2015-07-29 | 卡明斯公司 | Stabilized engine casting core assembly |
CN104812511B (en) * | 2012-11-27 | 2017-03-01 | 卡明斯公司 | Stable electromotor casting core assembly |
US9856818B2 (en) | 2012-11-27 | 2018-01-02 | Cummins Inc. | Stabilized engine casting core assembly, method for making an engine body, and engine body formed thereby |
US11002217B2 (en) | 2012-11-27 | 2021-05-11 | Cummins Inc. | Stabilized engine casting core assembly, method for making an engine body, and engine body formed thereby |
US10443470B2 (en) | 2014-11-21 | 2019-10-15 | Cummins Emission Solutions, Inc. | Nitrogen oxide signal multiplexing system |
Also Published As
Publication number | Publication date |
---|---|
US6886505B2 (en) | 2005-05-03 |
US20030172884A1 (en) | 2003-09-18 |
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