DE102006045729A1 - Internal combustion engine's piston for racing motor, has piston head partially consists of fiber-reinforced connection body provided with two partial bodies, which together form circulating coolant duct and/or annular groove - Google Patents
Internal combustion engine's piston for racing motor, has piston head partially consists of fiber-reinforced connection body provided with two partial bodies, which together form circulating coolant duct and/or annular groove Download PDFInfo
- Publication number
- DE102006045729A1 DE102006045729A1 DE200610045729 DE102006045729A DE102006045729A1 DE 102006045729 A1 DE102006045729 A1 DE 102006045729A1 DE 200610045729 DE200610045729 DE 200610045729 DE 102006045729 A DE102006045729 A DE 102006045729A DE 102006045729 A1 DE102006045729 A1 DE 102006045729A1
- Authority
- DE
- Germany
- Prior art keywords
- piston
- annular groove
- fiber
- piston head
- together form
- 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- Withdrawn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
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
- B22C9/105—Salt cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
- B22C9/108—Installation of cores
-
- 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
- B22D19/02—Casting in, on, or around objects which form part of the product for making reinforced articles
-
- 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
- F02F2200/00—Manufacturing
- F02F2200/04—Forging of engine parts
-
- 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
- F02F2200/00—Manufacturing
- F02F2200/06—Casting
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft einen Kolben für einen Verbrennungsmotor mit einem Kolbenkopf und einem Kolbenschaft, wobei der Kolbenkopf zumindest teilweise aus einem faserverstärkten Verbundkörper besteht. Die vorliegende Erfindung betrifft ferner ein Verfahren zur Herstellung eines solchen Kolbens.The The present invention relates to a piston for an internal combustion engine a piston head and a piston shaft, wherein the piston head at least partially made of a fiber-reinforced composite body consists. The present invention further relates to a method for producing such a piston.
Gattungsgemäße Kolben
sind beispielsweise aus der
Problematisch hierbei ist, dass zur Herstellung des faserverstärkten Verbundmaterials zunächst ein Grünling aus dem Fasermaterial und einem Bindemittel hergestellt und in die gewünschte Form gepresst wird. Dann wird der Grünling gebrannt oder gesintert, wobei das Bindemittel ausgebrannt wird und eine poröse sog. Preform entsteht. Diese Preform wird mit einer Metallschmelze infiltriert, wobei das Fasermaterial mit dem geschmolzenen Metall interagiert und der faserverstärkte Verbundkörper entsteht. Dieses Herstellungsverfahren erlaubt es nicht, den Grünling einer aufwendigen Formgebung zu unterziehen, weil er beim Brennen bzw. Sintern seine Kontur und Form zum Teil erheblich verändern kann. Daher können bisher nur einfach geformte Vollkörper aus faserverstärktem Verbundmaterial in einen Kolben integriert werden.Problematic here is that for the production of the fiber-reinforced composite material first Greenfinch made of the fiber material and a binder and into the desired shape is pressed. Then the green is fired or sintered, whereby the binder is burned out and a porous one so-called preform arises. This preform comes with a molten metal infiltrated, the fiber material with the molten metal interacts and the fiber reinforced Composite body arises. This manufacturing process does not allow the green of a to undergo elaborate shaping, because he burns or Sintering can change its contour and shape in some significant ways. Therefore, you can previously only simply shaped solid body made of fiber-reinforced composite material be integrated into a piston.
Der vorliegenden Erfindung liegt somit die Aufgabe zugrunde, einen gattungsgemäßen Kolben bzw. ein Verfahren zu seiner Herstellung derart weiterzubilden, dass auch komplex geformte Bauteile integriert sind.Of the The present invention is therefore based on the object, a generic piston or to develop a method for its production such that Also complex shaped components are integrated.
Zur Lösung dieser Aufgabe wird ein Kolben mit den Merkmalen des Patentanspruchs 1 sowie ein Verfahren mit den Merkmalen des Patentanspruchs 6 vorgeschlagen. Erfindungsgemäß ist vorgesehen, dass der Verbundkörper aus mindestens zwei Teilkörpern besteht, die zusammen einen umlaufenden Kühlkanal und/oder eine Ringnut ausbilden. Das erfindungsgemäße Verfahren zeichnet sich durch die folgenden Verfahrensschritte aus:
- – Mischen mindestens eines Fasermaterials und eines Bindemittels,
- – Formen mindestens zweier Grünlinge derart, dass ihre Form mindestens zwei Teilkörpern entspricht, welche zusammen einen umlaufenden Kühlkanal und/oder eine Ringnut ausbilden,
- – Brennen der getrockneten Grünlinge zur Herstellung poröser Preforms,
- – Einlegen der Preforms in eine Gießform für den Kolben, wobei sie einen Salzkern und/oder einen Ringträger aufnehmen,
- – Einbringen einer Metallschmelze in die Gießform, wobei die Preforms mit der Metallschmelze infiltriert werden,
- – Entfernen des Salzkerns.
- Mixing at least one fibrous material and a binder,
- Shaping at least two green bodies in such a way that their shape corresponds to at least two partial bodies, which together form a circumferential cooling channel and / or an annular groove,
- Firing the dried green compacts to produce porous preforms,
- Inserting the preforms in a mold for the piston, receiving a salt core and / or a ring carrier,
- Introducing a molten metal into the casting mold, wherein the preforms are infiltrated with the molten metal,
- - Remove the salt core.
Der erfindungsgemäße Kolben zeichnet sich dadurch aus, dass sowohl ein umlaufender Kühlkanal als auch eine Ringnut in den Kolbenkopf integriert werden können, obwohl der Kolbenkopf ganz oder teilweise aus einem faserverstärkten Verbundmaterial besteht. Dies ist dadurch möglich, dass der zumindest teilweise aus einem faserverstärkten Verbundmaterial bestehende Kolbenkopf in mindestens zwei Teilkörper aufgeteilt ist. Die beiden Teilkörper können zusammen einen umlaufenden Kühlkanal bzw. eine außen am Kolbenkopf umlaufende Ringnut bilden. Aufgrund der Tatsache, dass der Kolbenkopf in zumindest einer horizontalen Ebene in mindestens zwei Teilkörper unterteilt ist, wird das Problem umgangen, dass bei der Herstellung der Preform ggf. eine Form- und/oder Konturveränderung unterliegen kann. Bei der Infiltrierung der Preform innerhalb der Gießform für den Kolben wird nämlich aufgrund der Abmessungen der Gießform wieder die gewünschte Kontur des herzustellenden Kolbens erzielt. Gleichzeitig kann in die Gießform je nach Wunsch ein Salzkern für den Kühlkanal eingelegt werden.Of the piston according to the invention is characterized by the fact that both a circumferential cooling channel as well as an annular groove can be integrated into the piston head, though the piston head wholly or partly made of a fiber-reinforced composite material consists. This is possible by that at least partially made of a fiber-reinforced composite material existing piston head is divided into at least two part body. The two partial body can together a circumferential cooling channel or an outside forming annular groove on the piston head. Due to the fact, that the piston head in at least one horizontal plane in at least two part bodies is divided, the problem is bypassed that in the production the preform may possibly undergo a change in shape and / or contour. In the Infiltration of the preform within the mold for the piston is in fact due the dimensions of the mold again the desired one Contour of the produced piston achieved. At the same time in the mold as desired, a salt core for the cooling channel be inserted.
Der erfindungsgemäße Kolben vereinigt somit die Vorteile eines faserverstärkten Verbundkörpers mit einem gekühlten Kolben, der ggf. eine durch einen Ringträger verstärkte Ringnut aufweisen kann. Der erfindungsgemäße Kolben kann bei geringer Bauhöhe mit besonders geringem Gewicht ausgeführt sein. Er ist äußerst temperaturbeständig und daher insbesondere für Rennsport-Motoren geeignet.Of the piston according to the invention thus combines the advantages of a fiber-reinforced composite body with a chilled Piston, which may optionally have a reinforced by a ring carrier annular groove. Of the piston according to the invention can at low height be designed with very low weight. He is extremely temperature resistant and therefore in particular for Racing motors suitable.
Vorteilhafte Weiterbildungen ergeben sich aus den Unteransprüchen.advantageous Further developments emerge from the subclaims.
Bei einer besonders bevorzugten Ausführungsform ist in die Ringnut ein Ringträger, bspw. ein aus Niresist-Material bestehender Ringträger, aufgenommen. Damit wird die Temperaturbeständigkeit des erfindungsgemäßen Kolbens weiter verbessert.at a particularly preferred embodiment is in the annular groove a ring carrier, For example, consisting of Niresist material ring carrier recorded. This is the temperature resistance of the piston according to the invention further improved.
Zur Gewichtsersparnis kann der erfindungsgemäße Kolben insbesondere aus einem Leichtmetallwerkstoff, bspw. auf der Basis von Aluminium, bestehen. Das verwendete Fasermaterial, bspw. auf der Basis von Aluminium und/oder Silizium, ist bspw. ein keramisches Fasermaterial.to Weight savings, the piston according to the invention in particular a light metal material, for example based on aluminum, consist. The fiber material used, for example. On the basis of Aluminum and / or silicon, for example, is a ceramic fiber material.
Der Kolbenboden des erfindungsgemäßen Kolbens kann eine Verbrennungsmulde aufweisen, die in mindestens einem der Teilkörper ausgebildet ist. Hieraus wird deutlich, dass der individuellen Ausgestaltung des Kolbenbodens eines erfindungsgemäßen Kolbens keine konstruktiven Grenzen gesetzt sind, obwohl er ganz oder teilweise aus faserverstärktem Verbundmaterial besteht.The piston head of the piston according to the invention may have a combustion bowl which is formed in at least one of the partial bodies. From this it becomes clear that the individual Aus Design of the piston crown of a piston according to the invention are set no constructive limits, although it consists wholly or partly of fiber-reinforced composite material.
Beim Gießen des erfindungsgemäßen Kolbens ist insbesondere ein Druckgießverfahren oder Flüssigpressverfahren geeignet, bei dem das geschmolzene Metall unter Druck in die Gießform eingebracht wird.At the to water of the piston according to the invention is in particular a die casting process or liquid pressing process suitable in which the molten metal is introduced under pressure into the mold becomes.
Ausführungsbeispiele der vorliegenden Erfindung werden im Folgenden anhand der beigefügten Zeichnungen erläutert. Es zeigen in einer schematischen, nicht maßstabsgetreuen Darstellung:embodiments The present invention will be described below with reference to the accompanying drawings explained. In a schematic, not to scale representation:
Wie
aus den
Obzwar
in der Darstellung gemäß den
Aus
den
Die
beiden Teilkörper
Auch
im Ausführungsbeispiel
gemäß
Die
Herstellung eines Kolbens mit einem Kolbenkopf
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200610045729 DE102006045729A1 (en) | 2006-09-27 | 2006-09-27 | Internal combustion engine's piston for racing motor, has piston head partially consists of fiber-reinforced connection body provided with two partial bodies, which together form circulating coolant duct and/or annular groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200610045729 DE102006045729A1 (en) | 2006-09-27 | 2006-09-27 | Internal combustion engine's piston for racing motor, has piston head partially consists of fiber-reinforced connection body provided with two partial bodies, which together form circulating coolant duct and/or annular groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102006045729A1 true DE102006045729A1 (en) | 2008-04-03 |
Family
ID=39134208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE200610045729 Withdrawn DE102006045729A1 (en) | 2006-09-27 | 2006-09-27 | Internal combustion engine's piston for racing motor, has piston head partially consists of fiber-reinforced connection body provided with two partial bodies, which together form circulating coolant duct and/or annular groove |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE102006045729A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008031864A1 (en) * | 2008-07-05 | 2010-01-07 | Mahle International Gmbh | Insert for piston of internal combustion engine i.e. diesel engine, has supporting and cavity base parts that are arranged radially at distance from each other and connected with one another by covers, such that cooling channel is formed |
| DE102008031862A1 (en) * | 2008-07-05 | 2010-01-07 | Mahle International Gmbh | Insert for piston of combustion engine, particularly diesel engines, has circulating fire land, circulating ring portion and circulating cooling duct, where piston head is provided with piston base having combustion recess |
| CN103846409A (en) * | 2012-12-04 | 2014-06-11 | 中国兵器工业第五二研究所 | Preparation method of marine fiber reinforced composite material piston provided with cooling oil chamber |
| WO2017176935A1 (en) * | 2016-04-05 | 2017-10-12 | Federal-Mogul Llc | Piston with thermally insulating insert and method of construction thereof |
| CN111535936A (en) * | 2020-06-29 | 2020-08-14 | 安徽江淮汽车集团股份有限公司 | Engine piston |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0178747A1 (en) * | 1984-05-30 | 1986-04-23 | Ae Plc | The manufacture of pistons |
| EP0162602B1 (en) * | 1984-05-01 | 1988-06-29 | Ae Plc | Reinforced pistons |
| JPS63215363A (en) * | 1987-02-28 | 1988-09-07 | Aisin Seiki Co Ltd | Production of piston for internal combustion engine |
| EP0143330B1 (en) * | 1983-10-26 | 1988-12-21 | Ae Plc | Reinforced pistons |
| JPH02104950A (en) * | 1988-10-14 | 1990-04-17 | Nissan Motor Co Ltd | Piston for internal combustion engine |
| JPH02169846A (en) * | 1988-12-20 | 1990-06-29 | Izumi Ind Ltd | Manufacture of piston for internal combustion engine |
| DE3932562A1 (en) * | 1989-09-29 | 1991-04-11 | Kolbenschmidt Ag | DEVICE FOR PRODUCING LIGHT METAL PISTON FOR INTERNAL COMBUSTION ENGINES |
| EP0209090B1 (en) * | 1985-07-12 | 1991-08-21 | Toyota Jidosha Kabushiki Kaisha | Production of pistons having a cavity |
| DE4016723A1 (en) * | 1990-05-24 | 1991-11-28 | Kolbenschmidt Ag | PISTON CONNECTING ROD ARRANGEMENT |
| EP0412660B1 (en) * | 1989-08-10 | 1993-10-06 | Isuzu Motors Limited | Heat-insulating piston |
| DE69724035T2 (en) * | 1996-05-20 | 2004-02-19 | Yamaha Hatsudoki K.K., Iwata | Method of manufacturing a piston for an internal combustion engine |
| WO2004105980A1 (en) * | 2003-05-29 | 2004-12-09 | Kolbenschmidt K.K. | Apparatus and method of producing fiber-reinforced aluminum alloy piston |
-
2006
- 2006-09-27 DE DE200610045729 patent/DE102006045729A1/en not_active Withdrawn
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0143330B1 (en) * | 1983-10-26 | 1988-12-21 | Ae Plc | Reinforced pistons |
| EP0162602B1 (en) * | 1984-05-01 | 1988-06-29 | Ae Plc | Reinforced pistons |
| EP0178747A1 (en) * | 1984-05-30 | 1986-04-23 | Ae Plc | The manufacture of pistons |
| EP0209090B1 (en) * | 1985-07-12 | 1991-08-21 | Toyota Jidosha Kabushiki Kaisha | Production of pistons having a cavity |
| JPS63215363A (en) * | 1987-02-28 | 1988-09-07 | Aisin Seiki Co Ltd | Production of piston for internal combustion engine |
| JPH02104950A (en) * | 1988-10-14 | 1990-04-17 | Nissan Motor Co Ltd | Piston for internal combustion engine |
| JPH02169846A (en) * | 1988-12-20 | 1990-06-29 | Izumi Ind Ltd | Manufacture of piston for internal combustion engine |
| EP0412660B1 (en) * | 1989-08-10 | 1993-10-06 | Isuzu Motors Limited | Heat-insulating piston |
| DE3932562A1 (en) * | 1989-09-29 | 1991-04-11 | Kolbenschmidt Ag | DEVICE FOR PRODUCING LIGHT METAL PISTON FOR INTERNAL COMBUSTION ENGINES |
| DE4016723A1 (en) * | 1990-05-24 | 1991-11-28 | Kolbenschmidt Ag | PISTON CONNECTING ROD ARRANGEMENT |
| DE69724035T2 (en) * | 1996-05-20 | 2004-02-19 | Yamaha Hatsudoki K.K., Iwata | Method of manufacturing a piston for an internal combustion engine |
| WO2004105980A1 (en) * | 2003-05-29 | 2004-12-09 | Kolbenschmidt K.K. | Apparatus and method of producing fiber-reinforced aluminum alloy piston |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008031864A1 (en) * | 2008-07-05 | 2010-01-07 | Mahle International Gmbh | Insert for piston of internal combustion engine i.e. diesel engine, has supporting and cavity base parts that are arranged radially at distance from each other and connected with one another by covers, such that cooling channel is formed |
| DE102008031862A1 (en) * | 2008-07-05 | 2010-01-07 | Mahle International Gmbh | Insert for piston of combustion engine, particularly diesel engines, has circulating fire land, circulating ring portion and circulating cooling duct, where piston head is provided with piston base having combustion recess |
| CN103846409A (en) * | 2012-12-04 | 2014-06-11 | 中国兵器工业第五二研究所 | Preparation method of marine fiber reinforced composite material piston provided with cooling oil chamber |
| CN103846409B (en) * | 2012-12-04 | 2016-03-23 | 中国兵器科学研究院宁波分院 | A kind of preparation method of marine fiber reinforced composite material piston with cooling oil cavity |
| WO2017176935A1 (en) * | 2016-04-05 | 2017-10-12 | Federal-Mogul Llc | Piston with thermally insulating insert and method of construction thereof |
| CN108884780A (en) * | 2016-04-05 | 2018-11-23 | 费德罗-莫格尔动力系统有限责任公司 | Piston with thermally insulating insert and method of construction thereof |
| US10428760B2 (en) | 2016-04-05 | 2019-10-01 | Tenneco Inc. | Piston with thermally insulating insert and method of construction thereof |
| CN111535936A (en) * | 2020-06-29 | 2020-08-14 | 安徽江淮汽车集团股份有限公司 | Engine piston |
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| Date | Code | Title | Description |
|---|---|---|---|
| OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
| R012 | Request for examination validly filed |
Effective date: 20130926 |
|
| R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |