DE7212560U - Heavy metal ring carrier for pistons - Google Patents
Heavy metal ring carrier for pistonsInfo
- Publication number
- DE7212560U DE7212560U DE7212560U DE7212560DU DE7212560U DE 7212560 U DE7212560 U DE 7212560U DE 7212560 U DE7212560 U DE 7212560U DE 7212560D U DE7212560D U DE 7212560DU DE 7212560 U DE7212560 U DE 7212560U
- Authority
- DE
- Germany
- Prior art keywords
- ring
- ring carrier
- heavy metal
- carrier according
- cooling channel
- 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
Links
- 239000000969 carrier Substances 0.000 title claims description 20
- 229910001385 heavy metal Inorganic materials 0.000 title claims description 14
- 238000001816 cooling Methods 0.000 claims description 16
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 238000004873 anchoring Methods 0.000 claims description 3
- 239000002826 coolant Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 238000004381 surface treatment Methods 0.000 claims description 2
- 238000005266 casting Methods 0.000 description 2
- 241000282898 Sus scrofa Species 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000001771 impaired Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910001234 light alloy Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
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
- F02F3/00—Pistons
- F02F3/16—Pistons having cooling means
- F02F3/20—Pistons having cooling means the means being a fluid flowing through or along piston
- F02F3/22—Pistons having cooling means the means being a fluid flowing through or along piston the fluid being liquid
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Description
t ■ · I ·t ■ I
Alcan Aluminiumwerke: GmbH in Göttingen-WeendeAlcan Aluminumwerke: GmbH in Göttingen-Weende
Ringträger aus Schwermetall für KolbenHeavy metal ring carrier for pistons
Die Neuerung bezieht sich auf Ringträger aus Schwermetall für gekühlte Kolben aus Leichtmetall. Leichtmetallkolben mit einem Ringträger aus Schwermetall und hinter diesem Ringträger liegenden Kühlkanälen sind in mehreren Ausführungsformen bekannt. Beispielsweise werden nach dem OT-GM 1 725 II7 in den Kolben mehrteilige Glieder eingegossen« die zwischen sich Aussparungen in Form von Kühlkanälen bilden. Solche mehrteiligen Ringträger bereiten jedoch beim GieSen der Kolben Schwierigkeiten, weil die Verankerung mehrerer exakt zusammenpassender Teile beim GuB der Kolben nicht leicht ist. Auch wird eine wirksameThe innovation relates to ring carriers made of heavy metal for cooled pistons made of light metal. Light alloy pistons with a ring carrier made of heavy metal and cooling channels located behind this ring carrier are in several Embodiments known. For example, according to OT-GM 1 725 II7, multi-part links are cast into the piston « the cutouts between them in the form of cooling channels form. However, such multi-part ring carriers cause difficulties when casting the piston because the Anchoring several exactly fitting parts in the GuB of the piston is not easy. Also being effective
-2--2-
• · ·
• · φ • · ·
• · φ
Kühlung des Kolbenkopfes durch die Dicke der Einlagen aus Schwermetall beeinträchtigt.Cooling of the piston head through the thickness of the inserts from heavy metal impaired.
Die Neuerung bezweckt, diese Nachtelle zu beheben und erreicht dies dadurch, daß der Ringträger aus einem einstückigen, vorzugsweise gegossenen Ring und einem mit der Innenseite oder Unterseite dieses Ringes starr verbundenen ringrohrförmigen Kühlkanal besteht. Dieser Kühlkanal ist vorzugsweise aus Blech gefertigt und mit dem einstückigen Ring verschwelet.The aim of the innovation is to remedy this disadvantage and achieves this in that the ring carrier from a one-piece, preferably cast ring and one with the inside or underside of this ring there is rigidly connected annular tubular cooling channel. This cooling channel is preferably made of sheet metal and smoldered with the one-piece ring.
Zweckmäßig bestehen der massive einstückige Ring und der ringrohrförmige Kühlkanal aus dem gleichen Werkstoff oder weisen zumindest die gleiche Wärmedehnung auf. Durch entsprechende Auswahl der Legierungen kann auch die lineare Wärmedehnung des Kolbenwerkstcffs derjenigen des Ringträgers weitgehend angepaßt sein, um Spannungen beiden thermischen Wechselwirkungen des Kolbenbodens zu vermeiden. Hierdurch wird beim Schrumpfen des Kolbenwerkstoffs nach dem Gießen das Auftreten von Rissen an den Übergangsstellen zwischen der Schwermetalleinlage und den stärkeren Partien des Kolbenkopfes vermieden.The massive one-piece ring and the annular tubular cooling duct are expediently made of the same Material or have at least the same thermal expansion. By appropriate selection of the alloys the linear thermal expansion of the piston material can also be largely adapted to that of the ring carrier To avoid stresses both thermal interactions of the piston crown. This will help when shrinking of the piston material after casting, the appearance of cracks at the transition points between the heavy metal insert and avoided the thicker parts of the piston head.
Ein weiterer Vorteil besteht darin, daß die verhältnismäßig dünne Wand des ringrohrförmigen Kühlkanals aus Blech eine gute Wärmeableitung begünstigt. Dieses Ringrohr kann einen ringsum laufenden Schlitz aufweisen, dessen Ränder mit dem 3chwernseta7<.lring verschweißt sind, so daß die Innenwand des Kühlkanals teils von den Schwer· metallring und teils von dem Blech gebildet ist. An seiner Unterseite hat der Ringrohrkanal Öffnungen, die mit den Zu- und Ableitungen des Kühlmittels im Kolbenschaft fluchten.Another advantage is that the relatively thin wall of the annular tubular cooling channel made of sheet metal favors good heat dissipation. This The ring tube can have a slot running all around, the edges of which are welded to the heavy duty ring, so that the inner wall of the cooling duct is partly covered by the heavy metal ring and is partly formed by the sheet metal. The ring pipe channel has openings on its underside, which with align the coolant inlet and outlet lines in the piston skirt.
Zur Verbesserung des Wärmeübergangs sind die Außenflächen des Schwermetallringes und des damit verbundenen Ringrohres zweckmäßig durch Oberflächenbehandlung, z.B. nach dem Al-Fin-Verfahren, zur fugenlosen Verankerung im Kolbenwerkstoff vorbereitet.The outer surfaces are to improve the heat transfer the heavy metal ring and the ring tube connected to it, expediently by surface treatment, e.g. according to the Al-Fin process, prepared for seamless anchoring in the piston material.
In der Zeichnung sind zwei Ausführungsbeispiele von nach der Neuerung ausgebildeten Ringträgern dargestellt.In the drawing, two exemplary embodiments of ring carriers designed according to the innovation are shown.
Fig. 1 zeigt die Innenansicht eines sonkrecht geschnittenen Ringträgers.Fig. 1 shows the inside view of a perpendicular section Ring bearer.
Pig. 2 ist ein Axialschnitt durch einen Kolben mit eingegossenem Ringträger.Pig. 2 is an axial section through a piston with a cast-in ring carrier.
Bei dem in Fig» 1 gezeichneten Beispiel besteht der ringrohrförmige Kühlkanal 2 av«; einem eingerollten Siechstreifen. Das Ringrohr hat eli^n x-ingsum laufenden Schlitz 6, dessen Ränder mit dem Schwermetallring 1 verschweißt sind.In the example shown in FIG. 1, there is an annular tubular cooling channel 2 av "; a curled sick streak. The ring tube has eli ^ n x -ingsum running slit 6, the edges of which are welded to the heavy metal ring 1.
Bei dem in Fig. 2 dargestellten Leichtmetallkolben 4, dessen Kopf einen Brennraum 5 aufweist, ist der Ringträger 8 mit angeschweißtem ringrohrförmigem Kühlkanal 2 in einer der Flg. 1 entsprechenden Weise ausgebildet. Man erkennt Jedoch in Fig. 2 eine öffnung 7 an der Unterseite des Kühlkanals 2, welche mit der im Kolbenschaft verlaufenden Zuleitung 3 für das Kühlmittel fluchtet.In the case of the light metal piston 4 shown in FIG. 2, the head of which has a combustion chamber 5, the ring carrier 8 with a welded-on annular tubular cooling channel 2 is in one of the panels. 1 trained in a corresponding manner. However, in FIG. 2 one recognizes an opening 7 on the underside of the cooling channel 2, which is aligned with the supply line 3 for the coolant running in the piston skirt.
Claims (6)
Publications (1)
Publication Number | Publication Date |
---|---|
DE7212560U true DE7212560U (en) | 1972-06-29 |
Family
ID=1279302
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE7212560U Expired DE7212560U (en) | Heavy metal ring carrier for pistons |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE7212560U (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2624412A1 (en) * | 1976-05-31 | 1977-12-15 | Alcan Aluminiumwerke | METHOD OF MANUFACTURING PISTONS WITH A RING CHANNEL |
DE19722053A1 (en) * | 1997-05-27 | 1998-12-03 | Ks Kolbenschmidt Gmbh | Piston for IC engine with direct fuel injection |
DE19750021A1 (en) * | 1997-11-12 | 1999-05-20 | Mahle Gmbh | Cooled ring carrier |
DE19821316A1 (en) * | 1998-05-13 | 1999-11-18 | Mahle Gmbh | Ring carrier for a piston of an internal combustion engine |
DE19825848A1 (en) * | 1998-06-10 | 1999-12-16 | Ks Kolbenschmidt Gmbh | Cooling channel piston for an internal combustion motor |
DE19940440A1 (en) * | 1999-08-26 | 2001-03-08 | Ks Kolbenschmidt Gmbh | Piston for internal combustion engine; has closed circular ring support and component that forms cooling channel, which is arranged radially inside ring support and has one or more openings |
WO2002040202A1 (en) * | 2000-11-18 | 2002-05-23 | Mahle Gmbh | Method of producing by casting a piston with a cooled ring carrier |
WO2002055912A1 (en) | 2001-01-11 | 2002-07-18 | Mahle Gmbh | Method for producing a ring support with a sheet metal cooling channel welded thereon |
DE10007616B4 (en) * | 2000-02-18 | 2008-08-28 | Federal-Mogul Nürnberg GmbH | Ring carrier with cooling channel |
-
0
- DE DE7212560U patent/DE7212560U/en not_active Expired
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2624412A1 (en) * | 1976-05-31 | 1977-12-15 | Alcan Aluminiumwerke | METHOD OF MANUFACTURING PISTONS WITH A RING CHANNEL |
DE19722053A1 (en) * | 1997-05-27 | 1998-12-03 | Ks Kolbenschmidt Gmbh | Piston for IC engine with direct fuel injection |
DE19722053C2 (en) * | 1997-05-27 | 2002-10-24 | Ks Kolbenschmidt Gmbh | Pistons for an internal combustion engine |
US6105540A (en) * | 1997-11-12 | 2000-08-22 | Mahle Gmbh | Cooled ring carrier assembly |
DE19750021A1 (en) * | 1997-11-12 | 1999-05-20 | Mahle Gmbh | Cooled ring carrier |
DE19821316A1 (en) * | 1998-05-13 | 1999-11-18 | Mahle Gmbh | Ring carrier for a piston of an internal combustion engine |
DE19825848A1 (en) * | 1998-06-10 | 1999-12-16 | Ks Kolbenschmidt Gmbh | Cooling channel piston for an internal combustion motor |
DE19940440A1 (en) * | 1999-08-26 | 2001-03-08 | Ks Kolbenschmidt Gmbh | Piston for internal combustion engine; has closed circular ring support and component that forms cooling channel, which is arranged radially inside ring support and has one or more openings |
DE19940440C2 (en) * | 1999-08-26 | 2003-10-09 | Ks Kolbenschmidt Gmbh | Pistons, in particular for an internal combustion engine |
DE10007616B4 (en) * | 2000-02-18 | 2008-08-28 | Federal-Mogul Nürnberg GmbH | Ring carrier with cooling channel |
WO2002040202A1 (en) * | 2000-11-18 | 2002-05-23 | Mahle Gmbh | Method of producing by casting a piston with a cooled ring carrier |
WO2002055912A1 (en) | 2001-01-11 | 2002-07-18 | Mahle Gmbh | Method for producing a ring support with a sheet metal cooling channel welded thereon |
US7003878B2 (en) | 2001-01-11 | 2006-02-28 | Mahle Gmbh | Method for producing a ring support with a sheet metal cooling channel welded thereon |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE4112889C2 (en) | Process for producing a piston head with cooling for a multi-part, articulated piston for internal combustion engines, and piston head produced thereafter | |
DE69101349T2 (en) | Reciprocating piston. | |
DE3721021C2 (en) | ||
DE2624412C3 (en) | Process for the production of pistons with an annular channel | |
WO2009049611A1 (en) | Piston for an internal combustion engine | |
DE3008330A1 (en) | LIQUID-COOLED PISTON FOR INTERNAL COMBUSTION ENGINES | |
DE2726273A1 (en) | PISTONS FOR COMBUSTION MACHINERY AND THE PROCESS FOR THEIR MANUFACTURING | |
DE7212560U (en) | Heavy metal ring carrier for pistons | |
DE3827008C2 (en) | ||
DE2644661A1 (en) | PISTON | |
DE3780132T2 (en) | METHOD FOR PRODUCING METALLIC PRODUCTS FROM POWDER BY MEANS OF HOT-ISOSTATIC PRINTING USING CERAMIC CORES. | |
EP0870103B1 (en) | Piston with cooling channel | |
DE60117516T2 (en) | Die-casting piston for cold chamber die casting machine | |
DE4438703C2 (en) | Light alloy pistons with cooling channel for internal combustion engines | |
DE19722053A1 (en) | Piston for IC engine with direct fuel injection | |
DE2636436A1 (en) | ROTARY LISTON ENGINE COOLING | |
DE1097210B (en) | Pistons for internal combustion engines | |
DE2238335A1 (en) | PISTON WITH A PISTON RING HOLDER | |
DE2410140A1 (en) | Light alloy pistons for IC engines - have inset piston ring holders of truncated cone design | |
DE2337592A1 (en) | LINING FOR A ROTARY LISTON MACHINE | |
DE3514913C2 (en) | ||
DE827273C (en) | Light metal cylinders for internal combustion engines, compressors, etc. like | |
DE2411840A1 (en) | PISTONS FOR COMBUSTION ENGINES | |
DE958614C (en) | Light metal cylinder with cast barrel for internal combustion engines | |
DE3518497A1 (en) | Liquid-cooled piston |