DE102011106655A1 - Method for producing a piston for an internal combustion engine - Google Patents
Method for producing a piston for an internal combustion engine Download PDFInfo
- Publication number
- DE102011106655A1 DE102011106655A1 DE201110106655 DE102011106655A DE102011106655A1 DE 102011106655 A1 DE102011106655 A1 DE 102011106655A1 DE 201110106655 DE201110106655 DE 201110106655 DE 102011106655 A DE102011106655 A DE 102011106655A DE 102011106655 A1 DE102011106655 A1 DE 102011106655A1
- Authority
- DE
- Germany
- Prior art keywords
- salt core
- piston
- blank
- ring carrier
- ring
- 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- Withdrawn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
Images
Classifications
-
- 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
- B22C21/00—Flasks; Accessories therefor
- B22C21/12—Accessories
- B22C21/14—Accessories for reinforcing or securing moulding materials or cores, e.g. gaggers, chaplets, pins, bars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/12—Treating moulds or cores, e.g. drying, hardening
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/18—Finishing
-
- 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
- B22D19/0027—Cylinders, pistons 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
- 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)
- 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)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
Vorgeschlagen wird ein Verfahren zur Herstellung eines Kolbens (1) für einen Verbrennungsmotor mit einem nahe dem Kolbenboden (2) radial außen angeordneten Ringträger (3) und mit einem radial innerhalb des Ringträgers (3) angeordneten Kühlkanal (10), wobei der Kühlkanal (10) unter Verwendung eines Salzkerns (4) hergestellt wird. Hierbei wird ein Rohlings des Salzkerns (4') durch Pressen hergestellt, wobei an die radiale Außenfläche des Salzkerns (4) mindestens drei, gleichmäßig über den Umfang des Salzkerns (4) verteilte Distanzrippen (6a bis 6e) angeformt werden. Ein Rohlings des Ringträgers (3) und der Salzkern (4) werden in der Gießform mittels Pinolen (5, 5') derart befestigt, dass der Salzkern (4) von den Distanzrippen (6a bis 6e) auf Abstand zum Rohling des Ringträgers (3) gehalten. Anschließend wird Schmelze in die Gießform gegossen, und der Kolben (1) durch spanende Fertigungsverfahren fertiggestellt.A method is proposed for producing a piston (1) for an internal combustion engine with a ring carrier (3) arranged radially on the outside of the piston head (2) and with a cooling channel (10) arranged radially inside the ring carrier (3), wherein the cooling channel (10 ) is produced using a salt core (4). In this case, a blank of the salt core (4 ') is produced by pressing, wherein at least three, uniformly over the circumference of the salt core (4) distributed spacer ribs (6a to 6e) are integrally formed on the radial outer surface of the salt core (4). A blank of the ring carrier (3) and the salt core (4) are fixed in the mold by means of sleeves (5, 5 ') such that the salt core (4) of the spacer ribs (6a to 6e) at a distance from the blank of the ring carrier (3 ) held. Subsequently, melt is poured into the mold, and the piston (1) completed by machining manufacturing processes.
Description
Die Erfindung betrifft ein Verfahren zur Herstellung eines Kolbens für einen Verbrennungsmotor nach dem Oberbegriff des Anspruches 1.The invention relates to a method for producing a piston for an internal combustion engine according to the preamble of
Ein Kolben mit einem Ringträger und mit einem radial innerhalb des Ringträgers angeordneten Kühlkanal, wobei der Kühlkanal unter Verwendung eines löslichen Kerns hergestellt wird, ist aus dem Deutschen Patent
Diesen Nachteil des Standes der Technik zu vermeiden ist Aufgabe der vorliegenden Erfindung.To avoid this disadvantage of the prior art is the object of the present invention.
Gelöst wird die Aufgabe mit den im Kennzeichen des Hauptanspruches stehenden Merkmalen.The problem is solved with the features in the characterizing part of the main claim.
Hierbei weist der Salzkern zur Herstellung des Kühlkanals radial außen Distanzrippen auf, wodurch trotz möglicher gießtechnischer Lagetoleranzen des Salzkerns in der Gießform der Salzkern immer auf Abstand zum Ringträger gehalten wird, sodass sich zwischen dem Salzkern und dem Ringträger auch immer ein ausreichend großer über den Umfang verteilter Spalt ergibt, durch den beim Gießen des Kolbens die Schmelze ohne Widerstand fließen und damit den Ringträger umfließen kann.Here, the salt core for producing the cooling channel radially outside spacer ribs, which is held despite possible casting tolerances of the salt core in the mold of the salt core always at a distance from the ring carrier, so that between the salt core and the ring carrier always a sufficiently large distributed over the circumference Gap results, through which the melt flow during the casting of the piston without resistance and thus can flow around the ring carrier.
Ein Ausführungsbeispiel der Erfindung wird im Folgenden anhand der Zeichnungen beschrieben. Es zeigenAn embodiment of the invention will be described below with reference to the drawings. Show it
Erkennbar ist in
Es kann aber wegen gießtechnisch bedingter Lagetoleranzen des Gießkerns
Im Rahmen der Fertigstellung des Kolbens
Im vorliegenden Ausführungsbeispiel sind alle Distanzrippen
Der in
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Kolbenpiston
- 22
- Kolbenbodenpiston crown
- 33
- RingträgerRingbearer
- 44
- Salzkernsalt core
- 5, 5'5, 5 '
- PinolePinole
- 6a bis 6e6a to 6e
- DistanzrippeDistance rib
- 7, 7'7, 7 '
- Spaltgap
- 88th
- Ringnutring groove
- 9, 9'9, 9 '
- Kanalchannel
- 1010
- Kühlkanalcooling channel
- 12, 12'12, 12 '
-
Fläche des Salzkerns
4 Area of thesalt core 4
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 10218999 [0002] DE 10218999 [0002]
Claims (1)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201110106655 DE102011106655A1 (en) | 2011-07-05 | 2011-07-05 | Method for producing a piston for an internal combustion engine |
PCT/DE2012/000669 WO2013004214A1 (en) | 2011-07-05 | 2012-07-04 | Method for producing a piston for an internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201110106655 DE102011106655A1 (en) | 2011-07-05 | 2011-07-05 | Method for producing a piston for an internal combustion engine |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102011106655A1 true DE102011106655A1 (en) | 2013-01-10 |
Family
ID=46798924
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE201110106655 Withdrawn DE102011106655A1 (en) | 2011-07-05 | 2011-07-05 | Method for producing a piston for an internal combustion engine |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE102011106655A1 (en) |
WO (1) | WO2013004214A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103418752A (en) * | 2013-09-03 | 2013-12-04 | 宁夏共享集团有限责任公司 | Method for locating ultrahigh circular sand core |
DE102015220256A1 (en) * | 2015-10-19 | 2017-04-20 | Mahle International Gmbh | Method for producing a piston |
JP2020045879A (en) * | 2018-09-21 | 2020-03-26 | 日立オートモティブシステムズ株式会社 | Manufacturing method of piston of internal combustion engine |
CN112264585A (en) * | 2020-10-26 | 2021-01-26 | 湖南江滨机器(集团)有限责任公司 | Coaxial salt core installation device and coaxial salt core positioner |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4238851A1 (en) * | 1992-11-18 | 1994-05-19 | Kolbenschmidt Ag | Salt core for aluminium@ alloy piston mould - fixed in position by mounting pins locating in movable mould half |
JP2001071118A (en) * | 1999-09-06 | 2001-03-21 | Mazda Motor Corp | Inserting member and inserting method therefor |
DE10218999A1 (en) | 2002-04-27 | 2003-11-13 | Ks Kolbenschmidt Gmbh | Ring holder and profiled cooling channel for piston incorporates groove formed by casting or turning and cooling channel with thickened portions on outside of otherwise circular channel |
DE102005061075A1 (en) * | 2005-12-21 | 2007-06-28 | Mahle International Gmbh | Piston for internal combustion engine has hub cooling channels arranged in bolt hub regions close to bottom of piston and each connected to cooling channel |
DE102006024098B4 (en) * | 2006-05-23 | 2009-04-09 | Ks Kolbenschmidt Gmbh | Piston with a ring carrier-cooling channel combination |
EP1977102B1 (en) * | 2005-12-21 | 2010-05-12 | Mahle International GmbH | Piston for an internal combustion engine and method for production thereof |
DE102008063947B4 (en) * | 2008-12-19 | 2011-03-31 | Ks Kolbenschmidt Gmbh | Piston with standardized piston head with variable compression height |
US20110120299A1 (en) * | 2009-11-25 | 2011-05-26 | Gm Global Technology Operations, Inc. | Cast piston with pin bore lubrication and method of manufacturing same |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3548369B2 (en) * | 1997-02-17 | 2004-07-28 | 株式会社日立ユニシアオートモティブ | Internal combustion engine piston |
DE102007020384A1 (en) * | 2007-04-30 | 2008-11-06 | Mahle International Gmbh | Piston for an internal combustion engine, process for its preparation and ring carrier therefor |
-
2011
- 2011-07-05 DE DE201110106655 patent/DE102011106655A1/en not_active Withdrawn
-
2012
- 2012-07-04 WO PCT/DE2012/000669 patent/WO2013004214A1/en active Application Filing
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4238851A1 (en) * | 1992-11-18 | 1994-05-19 | Kolbenschmidt Ag | Salt core for aluminium@ alloy piston mould - fixed in position by mounting pins locating in movable mould half |
JP2001071118A (en) * | 1999-09-06 | 2001-03-21 | Mazda Motor Corp | Inserting member and inserting method therefor |
DE10218999A1 (en) | 2002-04-27 | 2003-11-13 | Ks Kolbenschmidt Gmbh | Ring holder and profiled cooling channel for piston incorporates groove formed by casting or turning and cooling channel with thickened portions on outside of otherwise circular channel |
DE10218999B4 (en) * | 2002-04-27 | 2005-03-03 | Ks Kolbenschmidt Gmbh | Piston with ring carrier and mold cooling channel |
DE102005061075A1 (en) * | 2005-12-21 | 2007-06-28 | Mahle International Gmbh | Piston for internal combustion engine has hub cooling channels arranged in bolt hub regions close to bottom of piston and each connected to cooling channel |
EP1977102B1 (en) * | 2005-12-21 | 2010-05-12 | Mahle International GmbH | Piston for an internal combustion engine and method for production thereof |
DE102006024098B4 (en) * | 2006-05-23 | 2009-04-09 | Ks Kolbenschmidt Gmbh | Piston with a ring carrier-cooling channel combination |
DE102008063947B4 (en) * | 2008-12-19 | 2011-03-31 | Ks Kolbenschmidt Gmbh | Piston with standardized piston head with variable compression height |
US20110120299A1 (en) * | 2009-11-25 | 2011-05-26 | Gm Global Technology Operations, Inc. | Cast piston with pin bore lubrication and method of manufacturing same |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103418752A (en) * | 2013-09-03 | 2013-12-04 | 宁夏共享集团有限责任公司 | Method for locating ultrahigh circular sand core |
CN103418752B (en) * | 2013-09-03 | 2015-07-29 | 宁夏共享集团有限责任公司 | A kind of ultrahigh circular sand core localization method |
DE102015220256A1 (en) * | 2015-10-19 | 2017-04-20 | Mahle International Gmbh | Method for producing a piston |
US10359001B2 (en) | 2015-10-19 | 2019-07-23 | Mahle International Gmbh | Method for producing a piston |
JP2020045879A (en) * | 2018-09-21 | 2020-03-26 | 日立オートモティブシステムズ株式会社 | Manufacturing method of piston of internal combustion engine |
WO2020059371A1 (en) * | 2018-09-21 | 2020-03-26 | 日立オートモティブシステムズ株式会社 | Method for manufacturing piston for internal combustion engine |
JP7011561B2 (en) | 2018-09-21 | 2022-01-26 | 日立Astemo株式会社 | Manufacturing method of piston of internal combustion engine |
CN112264585A (en) * | 2020-10-26 | 2021-01-26 | 湖南江滨机器(集团)有限责任公司 | Coaxial salt core installation device and coaxial salt core positioner |
Also Published As
Publication number | Publication date |
---|---|
WO2013004214A1 (en) | 2013-01-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R163 | Identified publications notified | ||
R005 | Application deemed withdrawn due to failure to request examination |