EP2486263B1 - Piston pour moteur à combustion interne, et moteur à combustion interne comportant un piston - Google Patents
Piston pour moteur à combustion interne, et moteur à combustion interne comportant un piston Download PDFInfo
- Publication number
- EP2486263B1 EP2486263B1 EP10752751.7A EP10752751A EP2486263B1 EP 2486263 B1 EP2486263 B1 EP 2486263B1 EP 10752751 A EP10752751 A EP 10752751A EP 2486263 B1 EP2486263 B1 EP 2486263B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston
- recess
- internal combustion
- combustion engine
- lower edge
- 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.)
- Active
Links
- 238000002485 combustion reaction Methods 0.000 title claims description 14
- 238000001816 cooling Methods 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 4
- 230000007423 decrease Effects 0.000 claims description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
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
Definitions
- the invention relates to a piston for an internal combustion engine and an internal combustion engine with a piston.
- a piston for an internal combustion engine in which at the lower edge of the piston shaft in the direction of the piston axis, that is formed in the axial direction notch is present. This serves to receive a cooling oil nozzle or a supply line for this purpose, in particular in the lower dead center of the piston.
- the FR 2 644 517 A1 relates to a piston for an internal combustion engine having an interior defined by shaft wall portions which abut the cylinder walls in use and connecting walls formed therebetween, in which interior there is provided a tubular feed line for cooling oil and for receiving a cooling oil nozzle.
- the object of the invention is to provide a piston for an internal combustion engine and an internal combustion engine equipped therewith, in which increased flexibility with regard to different positions of cooling oil nozzles is realized.
- this has at its in use position usually lower, that is, the piston head, which limits the combustion chamber, opposite edge on at least one recess formed in the radial direction.
- the "interior space" of the piston defined by shaft wall portions which abut against the cylinder walls in use and the connecting walls therebetween is widened in the radial direction.
- This extension when viewed in the axial direction, results in a bulge or bulge on the outside of the connecting wall or walls in which the recess is usually formed. This is especially true if the wall thickness in the region of the recess is substantially the same as adjacent thereto. Independently of this, however, even with a reduced wall thickness on the inside, the described recess or niche can be formed, which creates additional space for different positions of cooling oil nozzles.
- the recess or niche described allows additional cooling oil positions, so that the usability of the piston according to the invention improved, and the cost of the same is increased.
- existing piston tools can be rebuilt to form the recess according to the invention without having to use new components.
- a calculation by means of finite elements has revealed the fundamental feasibility of the piston according to the invention.
- the recess is formed with a depth in the radial direction, which decreases starting from the lower edge in the direction of the piston axis.
- the material thickness at the recess defining portion is approximately equal to the portions adjacent to the recess.
- indentations or the like at the lower edge of the piston can advantageously be avoided in that, as is preferred, the lower edge of the piston in the region of the recess is approximately at the same level as adjacent thereto.
- the invention further describes an internal combustion engine, which has at least one cooling oil nozzle in addition to the previously described piston.
- a value of two millimeters or more is currently preferred, to take into account the operating conditions and certain tolerances.
- the figure shows a perspective bottom view of the piston according to the invention.
- the figure shows a piston 10 according to the invention from its underside opposite the piston head 12.
- the lower edge of the piston 10 is formed here by the respective lower edge of skirt wall sections 14 and connecting walls 16 between the shaft wall sections 14.
- a connecting wall in addition to a piston pin bore 18, there is a recess 20 formed in the radial direction.
- the connecting wall 16 is in a substantially constant wall thickness and / or in the axial direction at a largely constant level edge in the radial Direction slightly bulged, so that on the inside, that is, to the opposite connecting wall 16 out, a recess or niche is created.
- a cooling oil nozzle can be accommodated even when the position is changed, so that the possible use of the piston according to the invention improves in an economically favorable manner.
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)
Claims (6)
- Piston (10) pour un moteur à combustion interne, présentant au moins un évidement (20) sur son bord inférieur opposé au fond du piston (12), caractérisé en ce que l'évidement est formé dans la direction radiale et en ce que la profondeur de l'évidement (20) diminue depuis le bord inférieur du piston (10) vers l'axe du piston.
- Piston selon la revendication 1, caractérisé en ce que l'épaisseur de matériau du segment limitrophe de l'évidement (20) est sensiblement égale à l'épaisseur de matériau dans l'environnement de l'évidement (20).
- Piston selon la revendication 1 ou 2, caractérisé en ce que le bord inférieur du piston (10) dans la région de l'évidement (20) est sensiblement au même niveau que dans l'environnement de l'évidement (20).
- Piston selon l'une des revendications précédentes, caractérisé en ce que l'évidement (20) présente sur le bord inférieur du piston (10) une profondeur comprise entre environ 1 et 3 mm dans la direction radiale.
- Piston selon l'une des revendications précédentes, caractérisé en ce qu'au moins un évidement (20) est formé sur le côté de détente du piston (10).
- Moteur à combustion interne, avec au moins un piston (10) selon au moins une des revendications précédentes et au moins un gicleur d'huile de refroidissement, l'espacement entre le gicleur d'huile de refroidissement et la limite de l'évidement (20) étant préférentiellement égal ou supérieur à environ 2 mm.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL10752751T PL2486263T5 (pl) | 2009-10-07 | 2010-09-01 | Tłok dla silnika spalinowego i silnik spalinowy z tłokiem |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009045437A DE102009045437A1 (de) | 2009-10-07 | 2009-10-07 | Kolben für einen Verbrennungsmotor und Verbrennungsmotor mit einem Kolben |
PCT/EP2010/062799 WO2011042264A1 (fr) | 2009-10-07 | 2010-09-01 | Piston pour moteur à combustion interne, et moteur à combustion interne comportant un piston |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2486263A1 EP2486263A1 (fr) | 2012-08-15 |
EP2486263B1 true EP2486263B1 (fr) | 2015-11-04 |
EP2486263B2 EP2486263B2 (fr) | 2019-08-28 |
Family
ID=43086964
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10752751.7A Active EP2486263B2 (fr) | 2009-10-07 | 2010-09-01 | Piston pour moteur à combustion interne, et moteur à combustion interne comportant un piston |
Country Status (8)
Country | Link |
---|---|
US (1) | US20120260869A1 (fr) |
EP (1) | EP2486263B2 (fr) |
JP (1) | JP5859967B2 (fr) |
DE (1) | DE102009045437A1 (fr) |
ES (1) | ES2559507T5 (fr) |
HU (1) | HUE028228T2 (fr) |
PL (1) | PL2486263T5 (fr) |
WO (1) | WO2011042264A1 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015124748A1 (fr) * | 2014-02-21 | 2015-08-27 | Ks Kolbenschmidt Gmbh | Piston sans espace de refroidissement fermé pour moteurs à combustion interne comportant au moins une buse d'huile de refroidissement par cylindre et un procédé de refroidissement de ce piston |
US10871125B2 (en) | 2015-11-02 | 2020-12-22 | Ks Kolbenschmidt Gmbh | Optimized hub support |
CN109312688A (zh) | 2016-05-04 | 2019-02-05 | Ks科尔本施密特有限公司 | 活塞 |
DE102018203226A1 (de) | 2018-03-05 | 2019-09-05 | Federal-Mogul Nürnberg GmbH | Kolben für einen Verbrennungsmotor |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3917755A1 (de) | 1988-05-31 | 1990-01-18 | Atsugi Motor Parts Co Ltd | Kolben fuer eine brennkraftmaschine |
DE102004056769A1 (de) | 2004-11-24 | 2006-06-01 | Federal-Mogul Nürnberg GmbH | Kolben für einen Verbrennungsmotor und Kombination eines Kolbens mit einer Öleinspritzanordnung |
DE102005041002A1 (de) | 2005-08-29 | 2007-03-01 | Ks Kolbenschmidt Gmbh | Leichtbaukolben |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE898827C (de) * | 1951-06-08 | 1953-12-03 | Mahle Kg | Ovaler Brennkraftmaschinenkolben, insbesondere Leichtmetallkolben |
US4280455A (en) * | 1978-01-30 | 1981-07-28 | Fuji Jukogyo Kabushiki Kaisha | Internal combustion engine |
DE3639806A1 (de) * | 1986-11-21 | 1988-05-26 | Kolbenschmidt Ag | Leichtmetallkolben fuer brennkraftmaschinen |
DE3717767A1 (de) * | 1987-05-26 | 1988-12-08 | Mahle Gmbh | Kuehlbarer tauchkolben fuer verbrennungsmotoren |
DE3732927A1 (de) * | 1987-09-30 | 1989-04-13 | Mahle Gmbh | Kuehlbarer tauchkolben fuer verbrennungsmotoren |
DE4007992A1 (de) * | 1989-03-20 | 1990-09-27 | Avl Verbrennungskraft Messtech | Mehrteiliger kolben fuer brennkraftmaschinen |
DE4434994C2 (de) * | 1994-09-30 | 1998-02-19 | Porsche Ag | Kolben für Brennkraftmaschinen |
JP3091141B2 (ja) * | 1996-09-27 | 2000-09-25 | 川崎重工業株式会社 | 内燃機関用ピストン |
JP3548451B2 (ja) * | 1999-02-22 | 2004-07-28 | 本田技研工業株式会社 | ピストンのピン孔構造 |
WO2001073275A1 (fr) * | 2000-03-28 | 2001-10-04 | Federal-Mogul Corporation | Piston à grande puissance pourvu d'un déflecteur d'huile |
NL1021673C1 (nl) † | 2002-10-17 | 2004-04-20 | Mecal Applied Mechanics B V | Verbeterde naaf voor een windturbine. |
US7086354B2 (en) * | 2003-10-29 | 2006-08-08 | Deere & Company | Cooling nozzle mounting arrangement |
DE102004023773B3 (de) † | 2004-05-11 | 2005-11-17 | Repower Systems Ag | Windenergieanlage |
US7406941B2 (en) | 2004-07-21 | 2008-08-05 | Federal - Mogul World Wide, Inc. | One piece cast steel monobloc piston |
JP4337741B2 (ja) * | 2005-01-19 | 2009-09-30 | トヨタ自動車株式会社 | 内燃機関用ピストン |
GB2428452B (en) * | 2005-07-20 | 2011-02-23 | Ford Global Tech Llc | Oil spray system for an internal combustion engine |
KR20080063269A (ko) * | 2005-08-29 | 2008-07-03 | 카에스 콜벤슈미트 게엠베하 | 경량 피스톤 |
JP4580328B2 (ja) * | 2005-11-29 | 2010-11-10 | 日野自動車株式会社 | エンジンの潤滑構造 |
US8047123B2 (en) * | 2007-12-07 | 2011-11-01 | Mahle Engine Components Usa, Inc. | Cooling gallery insert for a piston |
-
2009
- 2009-10-07 DE DE102009045437A patent/DE102009045437A1/de not_active Withdrawn
-
2010
- 2010-09-01 HU HUE10752751A patent/HUE028228T2/en unknown
- 2010-09-01 JP JP2012532517A patent/JP5859967B2/ja not_active Expired - Fee Related
- 2010-09-01 WO PCT/EP2010/062799 patent/WO2011042264A1/fr active Application Filing
- 2010-09-01 EP EP10752751.7A patent/EP2486263B2/fr active Active
- 2010-09-01 PL PL10752751T patent/PL2486263T5/pl unknown
- 2010-09-01 US US13/499,973 patent/US20120260869A1/en not_active Abandoned
- 2010-09-01 ES ES10752751T patent/ES2559507T5/es active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3917755A1 (de) | 1988-05-31 | 1990-01-18 | Atsugi Motor Parts Co Ltd | Kolben fuer eine brennkraftmaschine |
DE102004056769A1 (de) | 2004-11-24 | 2006-06-01 | Federal-Mogul Nürnberg GmbH | Kolben für einen Verbrennungsmotor und Kombination eines Kolbens mit einer Öleinspritzanordnung |
DE102005041002A1 (de) | 2005-08-29 | 2007-03-01 | Ks Kolbenschmidt Gmbh | Leichtbaukolben |
Also Published As
Publication number | Publication date |
---|---|
JP2013507556A (ja) | 2013-03-04 |
US20120260869A1 (en) | 2012-10-18 |
EP2486263A1 (fr) | 2012-08-15 |
JP5859967B2 (ja) | 2016-02-16 |
DE102009045437A1 (de) | 2011-04-14 |
WO2011042264A1 (fr) | 2011-04-14 |
ES2559507T3 (es) | 2016-02-12 |
HUE028228T2 (en) | 2016-12-28 |
ES2559507T5 (es) | 2020-04-15 |
EP2486263B2 (fr) | 2019-08-28 |
PL2486263T4 (pl) | 2019-11-29 |
PL2486263T5 (pl) | 2019-11-29 |
PL2486263T3 (pl) | 2016-04-29 |
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