EP0682574A1 - Motorblock mit eingegossener kanalanordnung und verfahren zu seiner herstellung - Google Patents
Motorblock mit eingegossener kanalanordnung und verfahren zu seiner herstellungInfo
- Publication number
- EP0682574A1 EP0682574A1 EP95903271A EP95903271A EP0682574A1 EP 0682574 A1 EP0682574 A1 EP 0682574A1 EP 95903271 A EP95903271 A EP 95903271A EP 95903271 A EP95903271 A EP 95903271A EP 0682574 A1 EP0682574 A1 EP 0682574A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pipe system
- casting
- engine block
- cast
- channel arrangement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/02—Arrangements of lubricant conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- 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
-
- 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
Definitions
- the invention relates to an engine block cast from metal with at least one channel arrangement, preferably for the lubricant supply of bearing points.
- Components made of steel, gray or spheroidal cast iron or other casting alloys are known, for the production of hydraulic flow channels correspondingly short pipe sections in the Insert the casting mold before introducing the melt and pour the metal around it accordingly.
- the tubes used for this must be of two-part cross-section, only the outer tube having to be made of simple steel, while alloy steel, chromium-nickel steel or similarly expensive materials are used for the inner tube part. This is the only way to ensure that the outer tube piece melts in whole or in part during the casting process, thus creating a material connection between the casting and the outer tube part and, at the same time, an improved connection with the inner tube part is also achieved. Deformations of the inner tube part are, however, reliably excluded by the fact that it is protected from melting.
- the object of the invention is to create an engine block with a completely cast channel arrangement.
- This object is achieved according to the invention with an engine block cast from metal with at least one channel arrangement, preferably for the lubricant supply to bearing points, in which the channel arrangement is formed in each case by a prefabricated pipe system which is at least part of its channel length dependent on the metallic see material is overmolded.
- the particular advantage of this arrangement according to the invention is that the complete channel arrangement is formed by pipes, specifically by a prefabricated pipe system. For the casting process, it is only necessary to insert a single additional component in the form of a "pipe spider” or "pipe harp" into the casting mold.
- Such a prefabricated pipe system in the form of a "pipe harp" can consist, for example, of a main channel which runs through the engine block in the axial direction and from which branch subchannels branch in each case, which lead to the individual bearing points, for example the crankshaft.
- connection end can be led out of the engine block with a predetermined length and thus a much greater freedom for the sub ⁇ Bring of additional units, such as oil filters, oil pumps, or the like. Is given in the engine compartment.
- additional units such as oil filters, oil pumps, or the like.
- a sand with a binder is preferably provided here, which burns under the influence of the casting process and then by blowing out and, if appropriate, subsequent spherical rays can be removed. It is possible to provide an outer diameter of approximately 10 mm for a main channel and the subchannels branching off to the individual crankshaft bearing points can have an outer diameter of, for example, 6 to 8 mm.
- the invention provides that the channel arrangement be provided by a coherent, in its intended course prefabricated pipe system is formed, which is filled with a flowable, preferably hardenable foundry molding material and then inserted and / or partially molded into the casting mold, in which the parts of the pipe system not enclosed by the molding material of the casting mold are then cast around with the molten metal and then, after the casting has been formed, the molding material is removed from the pipe system which is now cast in.
- the advantage of this method is that the desired channel arrangement can be inserted and / or partially molded into the casting mold with a handle, so to speak, using a preformed pipe system made of single-wall pipes. This reduces the number of additional steps for inserting pipes to a minimum in the area of manufacturing the foundry mold, since the pipe system is inserted as a "pipe spider" or "pipe harp".
- the pipe system is made of normal steel, for example St 12-03, and is provided with a coating of a non-ferrous metal. Copper or tin or other suitable non-ferrous metals are suitable as non-ferrous metals. This non-ferrous metal coating has practically no meaning for the casting process itself, but only serves to prevent rusting of the outer surface of the pipe system.
- the wall thickness of those pipes of the pipe system which are surrounded by the casting material is matched to the greatest wall thickness of the casting in the enclosure area.
- Wall thicknesses of the casting a wall thickness of, for example, 2 mm is sufficient for the pipe to be poured in, in connection with the molding material filling of the pipe system, to prevent complete melting during the casting.
- the pipe system is composed of partial pieces, the individual partial pieces being tightly connected to one another at their mutual connection points.
- This tight connection can be made, for example, by welding.
- FIG. 1 is a schematic plan view of a four-cylinder engine block made of gray cast iron or nodular cast iron with a crankshaft with five bearings;
- Fig. 2 shows a vertical section. the line
- FIG. 3 is an enlarged view of the detail x in FIG. 2nd
- FIG. 1 of an engine block 1 cast from gray cast iron for a four-cylinder engine shows the cylinders 2 and the webs 3 between the individual cylinders 2, in which the bearings for the crankshaft are fastened.
- a main channel 6 runs in a lateral projection 5 for the lubricant supply to the bearing points of the crankshaft bearing, from which two channels 7 branch off to the individual bearing points.
- the main channel 6 and the branching subchannels 7 are now formed in one piece as a prefabricated pipe system and have the shape of a "pipe harp". As can be seen from the sectional view in FIG. 2, the subchannels 7 do not run in a straight line between the
- Main channel 6 and the web 3 for the crankshaft bearing are curved so that the mouth 8 for the bearing point with an intended direction of rotation of the crankshaft according to the arrow 9 open into a non-loaded part of the bearing.
- the subchannel 7 also runs partially outside the casting material, this part then being embedded in the molding material of the casting mold.
- the free ends of the pipe system are each dimensioned so long that they protrude from the finished casting and, accordingly, can be inserted into corresponding core marks in the casting mold and held there for the casting process.
- each orifice holes are machined, in which a corresponding drawing Process the hole is provided with an outwardly shaped collar 10.
- the correspondingly preformed tube of the subchannel 7 is then plugged onto this collar 10 and welded tightly to the tube of the main channel 6.
- Simple steel for example steel quality St 12-03, can be used for the pipes.
- GG 25 nodular cast iron GG V40 and similar material are particularly suitable as the casting material.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Manufacture Of Motors, Generators (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Exhaust Silencers (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4341040 | 1993-12-02 | ||
DE4341040A DE4341040A1 (de) | 1993-12-02 | 1993-12-02 | Motorblock mit eingegossener Kanalanordnung und Verfahren zu seiner Herstellung |
PCT/EP1994/003874 WO1995015236A1 (de) | 1993-12-02 | 1994-11-23 | Motorblock mit eingegossener kanalanordnung und verfahren zu seiner herstellung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0682574A1 true EP0682574A1 (de) | 1995-11-22 |
EP0682574B1 EP0682574B1 (de) | 1999-01-20 |
Family
ID=6503975
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95903271A Expired - Lifetime EP0682574B1 (de) | 1993-12-02 | 1994-11-23 | Verfahren zur herstellung eines motorblocks mit eingegossener kanalanordnung |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0682574B1 (de) |
AT (1) | ATE175911T1 (de) |
DE (2) | DE4341040A1 (de) |
ES (1) | ES2128034T3 (de) |
WO (1) | WO1995015236A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7387102B2 (en) | 2002-11-26 | 2008-06-17 | Fritz Winter Eisengiesserei Gmbh & Co. Kg | Cast part for an internal combustion engine |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10304971C5 (de) * | 2002-11-26 | 2008-06-12 | Fritz Winter Eisengiesserei Gmbh & Co. Kg | Gegossenes Bauteil für eine Brennkraftmaschine |
GB2349592A (en) | 1999-05-07 | 2000-11-08 | Perkins Engines Co Ltd | Cylinder block and method of fabrication thereof |
DE10340157B4 (de) * | 2003-09-01 | 2008-10-02 | Audi Ag | Vorrichtung zur Medienführung in einem Zylinderkurbelgehäuse |
FR2905615B1 (fr) * | 2006-09-08 | 2009-08-21 | Peugeot Citroen Automobiles Sa | Procede de realisation d'au moins une partie du circuit d'huile d'un bloc-moteur de moteur a combustion interne et bloc-moteur obtenu par un tel procede |
DE102006055304B4 (de) * | 2006-11-23 | 2012-03-08 | Daimler Ag | Zylinderköpfe und Zylinderkurbelgehäuse mit komplex verlaufenden Führungskanälen für Flüssigkeiten und deren Herstellung |
DE102011054055B3 (de) * | 2011-09-29 | 2012-09-27 | Benteler Automobiltechnik Gmbh | Druckwellenlader mit Hybridgehäuse |
DE102017106066A1 (de) | 2017-03-21 | 2017-05-11 | FEV Europe GmbH | Kurbelgehäuse und Zylinderkopf für eine Hubkolbenmaschine |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB879287A (en) * | 1958-12-24 | 1961-10-11 | Schmidt Gmbh Karl | Method of encasting elongated curved pipes and pipe systems |
JPS5573455A (en) * | 1978-11-28 | 1980-06-03 | Keiichiro Miyazaki | Pipe body insert casting method weld-combining straight pipe and bend |
JPS56117863A (en) * | 1980-02-19 | 1981-09-16 | Toyota Motor Corp | Method for manufacturing oil hole of hollow crank shaft |
US4450886A (en) * | 1980-07-14 | 1984-05-29 | Nakamura Kinzoku Kogyosho, Inc. | Method of producing suction manifolds for automobile engines |
DE3129391C1 (de) * | 1981-07-25 | 1982-11-04 | Estel Hoesch Werke Ag, 4600 Dortmund | Verfahren zur Herstellung von Gusskoerpern mit eingegossenen Rohren aus Stahl |
JPS5979019A (ja) * | 1982-10-28 | 1984-05-08 | Hino Motors Ltd | シリンダ・ブロツク |
JPS60184460A (ja) * | 1984-03-02 | 1985-09-19 | Daihatsu Motor Co Ltd | アルミパイプの鋳ぐるみ方法 |
-
1993
- 1993-12-02 DE DE4341040A patent/DE4341040A1/de not_active Withdrawn
-
1994
- 1994-11-23 ES ES95903271T patent/ES2128034T3/es not_active Expired - Lifetime
- 1994-11-23 EP EP95903271A patent/EP0682574B1/de not_active Expired - Lifetime
- 1994-11-23 DE DE59407703T patent/DE59407703D1/de not_active Expired - Fee Related
- 1994-11-23 WO PCT/EP1994/003874 patent/WO1995015236A1/de active IP Right Grant
- 1994-11-23 AT AT95903271T patent/ATE175911T1/de not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO9515236A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7387102B2 (en) | 2002-11-26 | 2008-06-17 | Fritz Winter Eisengiesserei Gmbh & Co. Kg | Cast part for an internal combustion engine |
Also Published As
Publication number | Publication date |
---|---|
ES2128034T3 (es) | 1999-05-01 |
DE59407703D1 (de) | 1999-03-04 |
WO1995015236A1 (de) | 1995-06-08 |
ATE175911T1 (de) | 1999-02-15 |
DE4341040A1 (de) | 1995-06-08 |
EP0682574B1 (de) | 1999-01-20 |
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