WO2000020747A1 - Kolben mit kolbengrundkörper aus geschmiedetem stahl und einem kühlkanal - Google Patents
Kolben mit kolbengrundkörper aus geschmiedetem stahl und einem kühlkanal Download PDFInfo
- Publication number
- WO2000020747A1 WO2000020747A1 PCT/DE1999/003104 DE9903104W WO0020747A1 WO 2000020747 A1 WO2000020747 A1 WO 2000020747A1 DE 9903104 W DE9903104 W DE 9903104W WO 0020747 A1 WO0020747 A1 WO 0020747A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- piston
- base body
- hub
- cooling channel
- piston base
- Prior art date
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
- F02F3/0015—Multi-part pistons
- F02F3/0023—Multi-part pistons the parts being bolted or screwed together
-
- 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
- F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
- F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
- F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
- F02B23/0696—W-piston bowl, i.e. the combustion space having a central projection pointing towards the cylinder head and the surrounding wall being inclined towards the cylinder wall
-
- 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
-
- 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
- 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
- F05C2201/04—Heavy metals
- F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
- F05C2201/0448—Steel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Definitions
- Piston with piston base made of forged steel and a cooling channel
- the invention relates to a piston with a piston base made of forged steel and a cooling channel according to the preamble of claim 1.
- Such a piston and a method for its production is known from DE 44 46 726 AI.
- the problem with such pistons is that the ring band is only connected to the piston base body via the piston head and, as a result, the ring band represents a region susceptible to deformation.
- the invention is therefore concerned with the problem of minimizing deformation in the region of the ring band in the case of generic pistons.
- the inventive design - at least part of the ring band and the piston crown is formed by a component welded to the piston base body by two welds - the rigidity of the ring section is significantly increased.
- the box-shaped shaft can be in the pressure-counter pressure direction either - as shown in the drawings - be separated from the ring band by a recess or it can be connected to this and thus also to the peripheral wall 10.
- a piston made of cast iron is known from WO 80/02308, in which the upper part and the hub part are welded to one another and which has a circumferential rib above the hubs, but this is not welded to the upper part and has no stiffening function.
- a piston is known in which parts of the ring band and a radially outer part of the piston crown are formed by a welded part.
- this measure serves only to form a cooling channel, i. H. to solve a problem which, in the generic state of the art, is usually already solved by closing the cooling channel produced by machining by means of a metal sheet.
- a piston is also known in which an upper part made of heat-resistant steel and a lower part made of extruded steel are welded.
- Fig. 1 a piston according to the invention, cut on one side in the pin direction
- Fig. 2 shows the piston according to the invention of FIG. 1, cut on one side in the DR-GDR direction
- Fig. 3 shows another piston according to the invention, cut on one side in the pin direction
- Fig. 4 the piston acc. Fig. 3, cut on one side in the DR-GDR direction.
- the piston 1 consists of a piston base body 2 and a component 3 welded to it, which contains part of the ring section and the top land and part of the piston crown 5.
- the ring section and the top land are designated together with the reference number 4.
- a combustion bowl 6 is arranged in the piston crown 5.
- the piston base body consists of the hubs, which have a hub bore 7, the hub supports 8 and the connecting walls 9 between the hubs, a circumferential wall 10 which is formed radially outside the hubs and the connecting walls 9 between the hubs and the piston head 5 and which is formed above the hub bores 7 with the combustion bowl 6.
- the circumferential wall 10 extends from the hubs or the connecting walls between the hub supports radially outwards and obliquely upwards.
- the weld seams are arranged as an axial seam in the radially outer area of the piston crown and as a radial seam in the area of the ring band between groove II and groove III.
- the box-shaped shaft 11 can either be connected only to the hubs or additionally to the ring band 4.
- the peripheral wall 10 essentially forms a lower boundary of a cooling duct 12 and the welded-in component 3 essentially forms a radially outer boundary of the cooling duct 12.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR9913378-4A BR9913378A (pt) | 1998-10-07 | 1999-09-24 | Pistão com corpo básico de pistão de aço forjado e com um canal de refrigeração |
JP2000574826A JP2002526714A (ja) | 1998-10-07 | 1999-09-24 | 鍛造されたスチールから成るピストン基体と冷却通路とを有したピストン |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19846152.6 | 1998-10-07 | ||
DE19846152A DE19846152A1 (de) | 1998-10-07 | 1998-10-07 | Kolben mit Kolbengrundkörper aus geschmiedetem Stahl und einem Kühlkanal |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000020747A1 true WO2000020747A1 (de) | 2000-04-13 |
Family
ID=7883672
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1999/003104 WO2000020747A1 (de) | 1998-10-07 | 1999-09-24 | Kolben mit kolbengrundkörper aus geschmiedetem stahl und einem kühlkanal |
Country Status (6)
Country | Link |
---|---|
US (1) | US6026777A (de) |
JP (1) | JP2002526714A (de) |
KR (1) | KR100643420B1 (de) |
BR (1) | BR9913378A (de) |
DE (1) | DE19846152A1 (de) |
WO (1) | WO2000020747A1 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004515714A (ja) * | 2000-12-20 | 2004-05-27 | マーレ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | 直噴式ディーゼル機関用の冷却通路を備えたピストン |
KR100823845B1 (ko) * | 2001-02-13 | 2008-04-21 | 말레 게엠베하 | 다수편 피스톤을 위한 하부부분 |
CN103732352A (zh) * | 2011-07-12 | 2014-04-16 | 马勒国际公司 | 内燃机活塞及其制造方法 |
DE102022102051A1 (de) | 2022-01-28 | 2023-08-03 | Ks Kolbenschmidt Gmbh | Kolbenrohling, Kolben und Verfahren |
Families Citing this family (54)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19747944A1 (de) * | 1997-10-30 | 1999-05-06 | Mahle Gmbh | Kolben mit zentralem Kühlraum |
DE19846496A1 (de) * | 1998-10-09 | 2000-04-13 | Mahle Gmbh | Kolben für einen Verbrennungsmotor |
JP2000220520A (ja) * | 1999-01-27 | 2000-08-08 | Komatsu Ltd | 内燃機関のピストン |
US6327962B1 (en) * | 1999-08-16 | 2001-12-11 | Caterpillar Inc. | One piece piston with supporting piston skirt |
US6223701B1 (en) * | 1999-08-16 | 2001-05-01 | Caterpillar Inc. | Cooled one piece piston and method |
US6286414B1 (en) * | 1999-08-16 | 2001-09-11 | Caterpillar Inc. | Compact one piece cooled piston and method |
DE10013395C1 (de) * | 2000-03-17 | 2001-08-02 | Ks Kolbenschmidt Gmbh | Verfahren zur Herstellung eines einteiligen Kühlkanalkolbens, insbesondere für einen Dieselmotor, sowie ein danach hergestellter einteiliger Kühlkanalkolben |
DE10040486C2 (de) * | 2000-08-18 | 2002-10-31 | Ks Kolbenschmidt Gmbh | Stahlkolben |
DE10047258C2 (de) * | 2000-09-23 | 2003-02-06 | Ks Kolbenschmidt Gmbh | Kolben mit sich am Basisteil abstützenden und angeschweißtem Ringabschnitt |
US6840155B2 (en) * | 2000-10-18 | 2005-01-11 | Federal-Mogul World Wide, Inc. | Multi-axially forged piston |
DE10106435A1 (de) * | 2001-02-13 | 2002-08-14 | Bayerische Motoren Werke Ag | Kolben, insbesondere für eine Brennkraftmaschine |
US6526871B1 (en) * | 2001-08-24 | 2003-03-04 | Federal-Mogul World Wide, Inc. | Monobloc piston for diesel engines |
US6862976B2 (en) | 2001-10-23 | 2005-03-08 | Federal-Mogul World Wide, Inc. | Monobloc piston |
US6703577B2 (en) * | 2002-06-10 | 2004-03-09 | Sauer-Danfoss Inc. | Method of making closed cavity pistons |
US8276563B2 (en) * | 2002-06-28 | 2012-10-02 | Cummins, Inc. | Internal combustion engine piston |
US6868817B2 (en) * | 2002-12-13 | 2005-03-22 | International Engine Intellectual Property Company, Llc | Simplified combustion chamber |
EP1452250B1 (de) * | 2003-03-01 | 2008-11-12 | KS Kolbenschmidt GmbH | Herstellungsverfahren für einen Kühlkanalkolben mit umformbarem Bund |
DE10311150A1 (de) * | 2003-03-14 | 2004-09-23 | Mahle Gmbh | Verfahren zur Herstellung eines geschmiedeten Kolbens für einen Verbrennungsmotor |
DE10311149A1 (de) * | 2003-03-14 | 2004-09-23 | Mahle Gmbh | Verfahren zur Herstellung eines geschmiedeten Kolbens für einen Verbrennungsmotor |
DE10325914B4 (de) * | 2003-06-07 | 2012-08-02 | Mahle Gmbh | Kolben für einen Verbrennungsmotor |
DE102004031513A1 (de) * | 2004-06-30 | 2006-01-26 | Ks Kolbenschmidt Gmbh | Verfahren zur Herstellung eines Kühlkanalkolbens für eine Brennkraftmaschine |
US7104183B2 (en) * | 2004-07-07 | 2006-09-12 | Karl Schmidt Unisia, Inc. | One-piece steel piston |
US6997158B1 (en) * | 2004-10-07 | 2006-02-14 | International Engine Intellectual Property Company, Llc | Diesel combustion chamber |
DE102004057558A1 (de) * | 2004-11-30 | 2006-06-01 | Mahle International Gmbh | Kolben für einen Verbrennungsmotor |
ITPR20040084A1 (it) * | 2004-12-03 | 2005-03-03 | B R D Di Bocchi Ing Giuseppe & | Pistone per motori a combustione interna. |
US20070074695A1 (en) * | 2005-10-04 | 2007-04-05 | Mahle Technology, Inc. | Piston having improved cooling characteristics |
PL1984613T3 (pl) * | 2006-02-17 | 2018-04-30 | Ks Kolbenschmidt Gmbh | Wieloczęściowy tłok stalowy do silnika spalinowego z kanałem chłodzącym |
US20070283917A1 (en) * | 2006-06-12 | 2007-12-13 | Lapp Michael T | Piston for a combustion engine |
US20070295299A1 (en) * | 2006-06-12 | 2007-12-27 | Mahle Technology, Inc. | Piston for a combustion engine |
DE102007027162A1 (de) | 2007-06-13 | 2008-12-18 | Mahle International Gmbh | Zweiteiliger Kolben für einen Verbrennungsmotor |
DE102007044106A1 (de) * | 2007-09-15 | 2009-03-19 | Mahle International Gmbh | Zweiteiliger Kolben für einen Verbrennungsmotor |
KR101554759B1 (ko) * | 2007-12-20 | 2015-09-21 | 말레 인터내셔널 게엠베하 | 내연 기관용 피스톤에 링 부재를 고정하기 위한 방법 |
US8146560B2 (en) * | 2008-11-05 | 2012-04-03 | Mahle International Gmbh | Multi-part piston for an internal combustion engine and method for its production |
DE102008055911A1 (de) * | 2008-11-05 | 2010-05-06 | Mahle International Gmbh | Mehrteiliger Kolben für einen Verbrennungsmotor sowie Verfahren zu seiner Herstellung |
DE102008055908A1 (de) * | 2008-11-05 | 2010-05-06 | Mahle International Gmbh | Mehrteiliger Kolben für einen Verbrennungsmotor |
US8807109B2 (en) * | 2009-11-06 | 2014-08-19 | Federal-Mogul Corporation | Steel piston with cooling gallery and method of construction thereof |
US9970384B2 (en) * | 2009-11-06 | 2018-05-15 | Federal-Mogul Llc | Steel piston with cooling gallery and method of construction thereof |
DE102010025508A1 (de) | 2010-06-29 | 2011-12-29 | Mahle International Gmbh | Kolben für einen Verbrennungsmotor |
US9856820B2 (en) * | 2010-10-05 | 2018-01-02 | Mahle International Gmbh | Piston assembly |
DE102011013141A1 (de) | 2011-03-04 | 2012-09-06 | Mahle International Gmbh | Verfahren zur Herstellung eines Kolbens für einen Verbrennungsmotor |
DE102011013067A1 (de) | 2011-03-04 | 2012-09-06 | Mahle International Gmbh | Verfahren zur Herstellung eines Kolbens für einen Verbrennungsmotor |
US8973484B2 (en) | 2011-07-01 | 2015-03-10 | Mahle Industries Inc. | Piston with cooling gallery |
US8955486B2 (en) * | 2012-02-10 | 2015-02-17 | Federal Mogul Corporation | Piston with enhanced cooling gallery |
DE102012008945A1 (de) * | 2012-05-05 | 2013-11-07 | Mahle International Gmbh | Kolben für einen Verbrennungsmotor |
DE102012014200A1 (de) * | 2012-07-18 | 2014-05-15 | Mahle International Gmbh | Kolben für einen Verbrennungsmotor |
CN104662277B (zh) * | 2012-09-27 | 2019-06-18 | Ks科尔本施密特有限公司 | 内燃机的两件式结构的活塞 |
DE102013014345A1 (de) * | 2013-03-18 | 2014-10-02 | Mahle International Gmbh | Verfahren zur Herstellung eines Kolbens für einen Verbrennungsmotor und mittels dieses Verfahrens hergestellter Kolben |
RU2540194C1 (ru) * | 2013-09-25 | 2015-02-10 | Российская Федерация, от имени которой выступает Министерство промышленности и торговли Российской Федерации (Минпромторг России) | Поршень форсированного дизельного двигателя |
US9759156B2 (en) | 2015-03-04 | 2017-09-12 | Mahle International Gmbh | Asymmetric piston |
EP3452712A1 (de) | 2016-05-04 | 2019-03-13 | KS Kolbenschmidt GmbH | Kolben |
CN106285999A (zh) * | 2016-08-09 | 2017-01-04 | 山东滨州渤海活塞股份有限公司 | 整体式内燃机用钢活塞、内燃机、交通工具及制造方法 |
CN109931178B (zh) * | 2017-12-19 | 2021-10-15 | 强莉莉 | 一种活塞及其成型方法 |
US10926362B2 (en) | 2018-12-13 | 2021-02-23 | Caterpillar Inc. | Remanufactured engine piston and method |
GB2590701B (en) | 2019-12-27 | 2022-06-22 | Caterpillar Motoren Gmbh & Co | Piston for an internal combustion engine |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1949581A1 (de) * | 1969-10-01 | 1971-04-08 | Schmidt Gmbh Karl | Kolben fuer Verbrennungskraftmaschinen |
FR2238372A5 (de) * | 1973-07-19 | 1975-02-14 | Dampers |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD130368A1 (de) * | 1977-03-22 | 1978-03-22 | Goetz Sobisch | Kolben fuer verbrennungsmotoren |
DE2832970A1 (de) * | 1978-07-27 | 1980-02-07 | Schmidt Gmbh Karl | Gebauter, fluessigkeitsgekuehlter kolben fuer brennkraftmaschinen |
WO1980002308A1 (en) * | 1979-04-23 | 1980-10-30 | Caterpillar Tractor Co | Oil cooled piston |
DE2919638A1 (de) * | 1979-05-16 | 1980-11-20 | Schmidt Gmbh Karl | Kolben fuer brennkraftmaschinen |
DE3032671A1 (de) * | 1980-08-29 | 1982-03-18 | Alcan Aluminiumwerk Nürnberg GmbH, 6000 Frankfurt | Kolben fuer brennkraftmaschinen |
US4517930A (en) * | 1982-09-28 | 1985-05-21 | Kawasaki Jukogyo Kabushiki Kaisha | Piston of combustion engine |
FR2575227B1 (fr) * | 1984-12-20 | 1988-12-23 | Semt | Piston a structure allegee, notamment pour un moteur a combustion interne |
IT1240526B (it) * | 1990-07-31 | 1993-12-17 | Borgo Nova S.P.A. | Perfezionamento relativo a pistoni, in genere. |
JPH0454954U (de) * | 1990-09-14 | 1992-05-12 | ||
BR9005376A (pt) * | 1990-10-18 | 1992-06-16 | Metal Leve Sa | Embolo bipartido com fechamento postico de galeria e processo para sua obtencao |
BR9005370A (pt) * | 1990-10-18 | 1992-06-16 | Metal Leve Sa | Processo de fabricacao de embolo refrigerado |
DE4446726A1 (de) * | 1994-12-24 | 1996-06-27 | Mahle Gmbh | Verfahren zur Herstellung eines einteiligen Kühlkanalkolbens |
DE19501416A1 (de) * | 1995-01-19 | 1996-07-25 | Kolbenschmidt Ag | Geschmiedeter oder gegossener Kolbenkopf eines mehrteiligen Kolbens |
FI102559B1 (fi) * | 1995-03-09 | 1998-12-31 | Waertsilae Nsd Oy Ab | Polttomoottorin mäntäyksikkö |
-
1998
- 1998-10-07 DE DE19846152A patent/DE19846152A1/de not_active Withdrawn
-
1999
- 1999-01-21 US US09/234,750 patent/US6026777A/en not_active Expired - Lifetime
- 1999-09-24 WO PCT/DE1999/003104 patent/WO2000020747A1/de active IP Right Grant
- 1999-09-24 JP JP2000574826A patent/JP2002526714A/ja active Pending
- 1999-09-24 KR KR1020017004353A patent/KR100643420B1/ko not_active IP Right Cessation
- 1999-09-24 BR BR9913378-4A patent/BR9913378A/pt not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1949581A1 (de) * | 1969-10-01 | 1971-04-08 | Schmidt Gmbh Karl | Kolben fuer Verbrennungskraftmaschinen |
FR2238372A5 (de) * | 1973-07-19 | 1975-02-14 | Dampers |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004515714A (ja) * | 2000-12-20 | 2004-05-27 | マーレ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | 直噴式ディーゼル機関用の冷却通路を備えたピストン |
KR100823845B1 (ko) * | 2001-02-13 | 2008-04-21 | 말레 게엠베하 | 다수편 피스톤을 위한 하부부분 |
CN103732352A (zh) * | 2011-07-12 | 2014-04-16 | 马勒国际公司 | 内燃机活塞及其制造方法 |
DE102022102051A1 (de) | 2022-01-28 | 2023-08-03 | Ks Kolbenschmidt Gmbh | Kolbenrohling, Kolben und Verfahren |
US12078247B2 (en) | 2022-01-28 | 2024-09-03 | Ks Kolbenschmidt Gmbh | Piston blank, piston and method |
Also Published As
Publication number | Publication date |
---|---|
DE19846152A1 (de) | 2000-04-13 |
BR9913378A (pt) | 2001-07-24 |
KR100643420B1 (ko) | 2006-11-10 |
KR20010080018A (ko) | 2001-08-22 |
JP2002526714A (ja) | 2002-08-20 |
US6026777A (en) | 2000-02-22 |
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