DE19528409A1 - Method for mfg. cylindrical crank with housing for internal combustion engines - involves cylindrical sleeve case which is opened by use of magnetic fields, sleeve contains magnet coil which produces strong magnetic impulse - Google Patents
Method for mfg. cylindrical crank with housing for internal combustion engines - involves cylindrical sleeve case which is opened by use of magnetic fields, sleeve contains magnet coil which produces strong magnetic impulseInfo
- Publication number
- DE19528409A1 DE19528409A1 DE1995128409 DE19528409A DE19528409A1 DE 19528409 A1 DE19528409 A1 DE 19528409A1 DE 1995128409 DE1995128409 DE 1995128409 DE 19528409 A DE19528409 A DE 19528409A DE 19528409 A1 DE19528409 A1 DE 19528409A1
- Authority
- DE
- Germany
- Prior art keywords
- cylinder
- cylindrical
- internal combustion
- sleeve
- magnet coil
- 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- Withdrawn
Links
- 238000002485 combustion reaction Methods 0.000 title claims description 4
- 238000000034 method Methods 0.000 title abstract 2
- 239000000853 adhesive Substances 0.000 claims abstract description 10
- 230000001070 adhesive effect Effects 0.000 claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910001092 metal group alloy Inorganic materials 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B11/00—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding
- F16B11/006—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding by gluing
-
- 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
- F02F7/0085—Materials for constructing engines or their parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/02—Light metals
- F05C2201/021—Aluminium
Abstract
Description
Die Erfindung betrifft ein Herstellverfahren für ein Zylinderkurbelgehäuse einer Brennkraftmaschine mit eingeklebten Zylinderbüchsen. Ein derartiges Zylinderkurbelgehäuse ist aus der DE-OS 21 40 378 bekannt.The invention relates to a manufacturing method for a cylinder crankcase an internal combustion engine with glued-in cylinder liners. Such a thing Cylinder crankcase is known from DE-OS 21 40 378.
Die Verwendung von separaten Zylinderbüchsen ist insbesondere bei Zylin derkurbelgehäusen aus Aluminium-Legierungen oder allgemein Leichtme tall-Legierungen besonders vorteilhaft, da durch geeignete Auswahl des Materials für die Zylinderbüchsen eine optimale Laufflächengestaltung für die in den Zylindern geführten Kolben erzielbar ist, ohne daß aufwendige Beschichtungen der Aluminium-Legierung oder Leichtmetall-Legierung er forderlich sind. Jedoch stellt das übliche Eingießen von Zylinderbüchsen in Kurbelgehäuse aus Leichtmetall-Legierungen einen relativ hohen Ferti gungsaufwand dar. Demgegenüber einfacher wäre es, die Zylinderbüchsen in das Kurbelgehäuse einzukleben.The use of separate cylinder liners is particularly important with Zylin crankcase made of aluminum alloys or in general Leichtme tall alloys particularly advantageous because by appropriate selection of Materials for the cylinder liners an optimal tread design for the pistons guided in the cylinders can be achieved without expensive Coatings of aluminum alloy or light metal alloy are required. However, the usual pouring of cylinder liners into Crankcase made of light metal alloys a relatively high ferti The cylinder liners would be simpler glued into the crankcase.
Hierfür ein besonders vorteilhaftes Fer tigungsverfahren aufzuzeigen, ist Aufgabe der vorliegenden Erfindung. For this a particularly advantageous Fer To demonstrate the production process is the object of the present invention.
Zur Lösung dieser Aufgabe ist vorgesehen, daß das Verpressen der Klebe verbindung durch Aufweiten der Zylinderbüchsen mittels eines Magnetfeldes erfolgt. Vorteilhafte Weiterbildungen sind Inhalt der Unteransprüche.To solve this problem it is provided that the pressing of the adhesive connection by expanding the cylinder liners using a magnetic field he follows. Advantageous further developments are the content of the subclaims.
Die Klebetechnologie, insbesondere in Verbindung mit Aluminium-Werkstof fen, ist heute so weit fortgeschritten, daß auch im Rahmen einer Großserien fertigung Zylinderbüchsen mit Kurbelgehäusen standfest und zuverlässig verklebt werden können, jedoch muß dafür Sorge getragen werden, daß beim Verkleben in der Klebezone ein ausreichend hoher Anpreßdruck auf gebracht wird. Hierzu schlägt die Erfindung vor, die Zylinderbüchse kurzzei tig mittels eines Magnetfeldes aufzuweiten. Äußerst zufriedenstellende Er gebnisse wurden mit Zylinderbüchsen erzielt, deren Wandstärke im Bereich zwischen 0,2 mm und 0,5 mm lag und die kurzzeitig im magnetischen Fluß aufgeweitet wurden. Hierzu kann auf einfache Weise eine Magnetspule in die in das Zylinderkurbelgehäuse eingesetzte Zylinderbüchse eingehängt werden. Durch Aufbringen eines starken Magnetimpulses über einer Zeit spanne im Millisekundenbereich erfolgt ein nahezu ebenso kurzzeitiges Aufweiten der Zylinderbüchse, wodurch diese mit ausreichend hoher An preßkraft gegen die Zylinderwand des Zylinderkurbelgehäuses gepreßt wird. Diese hohe Anpreßkraft reicht aus, die sichere und dauerfeste Klebeverbin dung zwischen Zylinderbüchse und Zylinderkurbelgehäuse herzustellen, wozu selbstverständlich die einander zugewandten Kontaktflächen vor dem Einsetzen der Zylinderbüchse in das Zylinderkurbelgehäuse mit einem ge eigneten Klebstoff beschichtet wurden.The adhesive technology, especially in connection with aluminum material fen is so advanced today that even in the context of large series manufacture cylinder liners with crankcases stable and reliable can be glued, but care must be taken that when gluing in the adhesive zone, a sufficiently high contact pressure brought. To this end, the invention proposes the cylinder liner briefly expand using a magnetic field. Extremely satisfactory Results were achieved with cylinder liners, the wall thickness of which is in the range was between 0.2 mm and 0.5 mm and briefly in the magnetic flux have been expanded. For this purpose, a magnetic coil can easily be placed in the cylinder liner inserted in the cylinder crankcase will. By applying a strong magnetic pulse over time range in the millisecond range is almost as short Widening of the cylinder liner, causing it to be sufficiently high pressing force is pressed against the cylinder wall of the cylinder crankcase. This high contact pressure is sufficient, the safe and durable adhesive bond between the cylinder liner and the cylinder crankcase, why the contact surfaces facing each other of course Insert the cylinder liner into the cylinder crankcase with a ge suitable adhesive were coated.
Auch unter Berücksichtigung der vorgeschlagenen geringen Wandstärke für die Zylinderbüchse empfiehlt es sich, diese im wesentlichen vollflächig mit dem Aluminium-Zylinderkurbelgehäuse zu verkleben. Abweichend vom oben zitierten bekannten Stand der Technik liegt somit keine nasse Zylinder büchse vor. Dies ist jedoch aufgrund der guten Wärmeleitfähigkeit des für das Zylinderkurbelhäuse vorgesehenen Aluminiums unproblematisch. Aus dem gleichen Grunde halten sich auch die Anforderungen für den verwende ten Klebstoff in vertretbarem Rahmen, da die Wandtemperatur üblicherweise stets unter 200°C bleibt. Im übrigen stellt aufgrund der großen Klebefläche bei im wesentlichen vollflächiger Verklebung die Klebefestigkeit auch nur ein zweitrangiges Problem dar. Besonders vorteilhaft macht sich hingegen die dünne Wandstärke der Zylinderbüchsen im Hinblick auf das Gewicht der Brennkraftmaschine bemerkbar. Ferner zeichnet sich ein erfindungsgemäß hergestelltes Brennkraftmaschinen-Kurbelgehäuse durch äußerst kompakte Bauweise aus. Stets können mit den in den Patentansprüchen aufgelisteten Merkmalen auf einfache Weise sicher und zuverlässig Zylinderbüchsen in Zylinderkurbelgehäuse eingeklebt werden.Also taking into account the proposed small wall thickness for it is advisable to use the cylinder liner essentially over the entire surface to glue the aluminum cylinder crankcase. Different from the above The known prior art cited is therefore not a wet cylinder rifle before. However, this is due to the good thermal conductivity of the the cylinder crankcase provided aluminum unproblematic. Out for the same reason, the requirements for the user ten adhesive in an acceptable range, since the wall temperature is usually always stays below 200 ° C. Otherwise, due to the large adhesive surface with essentially full-surface bonding, the adhesive strength is only one is a secondary problem. The thin wall thickness of the cylinder liners in terms of the weight of the Internal combustion engine noticeable. Furthermore, according to the invention Engine crankcase produced by extremely compact Construction. You can always use those listed in the claims Features in a simple way safe and reliable cylinder liners in Cylinder crankcase are glued.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1995128409 DE19528409A1 (en) | 1995-08-02 | 1995-08-02 | Method for mfg. cylindrical crank with housing for internal combustion engines - involves cylindrical sleeve case which is opened by use of magnetic fields, sleeve contains magnet coil which produces strong magnetic impulse |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1995128409 DE19528409A1 (en) | 1995-08-02 | 1995-08-02 | Method for mfg. cylindrical crank with housing for internal combustion engines - involves cylindrical sleeve case which is opened by use of magnetic fields, sleeve contains magnet coil which produces strong magnetic impulse |
Publications (1)
Publication Number | Publication Date |
---|---|
DE19528409A1 true DE19528409A1 (en) | 1997-02-06 |
Family
ID=7768525
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1995128409 Withdrawn DE19528409A1 (en) | 1995-08-02 | 1995-08-02 | Method for mfg. cylindrical crank with housing for internal combustion engines - involves cylindrical sleeve case which is opened by use of magnetic fields, sleeve contains magnet coil which produces strong magnetic impulse |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE19528409A1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2035956A1 (en) * | 1970-07-20 | 1972-01-27 | Hohenzollern Huettenverwalt | Method for fastening sliding metal liners in the cylinder bores of piston engines |
EP0230866A1 (en) * | 1985-12-05 | 1987-08-05 | FIAT AUTO S.p.A. | Glueing process of cylinder liners to crankcase of an internal combustion engine |
DE4244502C1 (en) * | 1992-12-30 | 1994-03-17 | Bruehl Aluminiumtechnik | Cylinder crankcase and method for its manufacture |
-
1995
- 1995-08-02 DE DE1995128409 patent/DE19528409A1/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2035956A1 (en) * | 1970-07-20 | 1972-01-27 | Hohenzollern Huettenverwalt | Method for fastening sliding metal liners in the cylinder bores of piston engines |
EP0230866A1 (en) * | 1985-12-05 | 1987-08-05 | FIAT AUTO S.p.A. | Glueing process of cylinder liners to crankcase of an internal combustion engine |
DE4244502C1 (en) * | 1992-12-30 | 1994-03-17 | Bruehl Aluminiumtechnik | Cylinder crankcase and method for its manufacture |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8139 | Disposal/non-payment of the annual fee |