EP3036419A1 - Anordnung aus einem kolben und einer anspritzdüse für einen verbrennungsmotor - Google Patents
Anordnung aus einem kolben und einer anspritzdüse für einen verbrennungsmotorInfo
- Publication number
- EP3036419A1 EP3036419A1 EP14777501.9A EP14777501A EP3036419A1 EP 3036419 A1 EP3036419 A1 EP 3036419A1 EP 14777501 A EP14777501 A EP 14777501A EP 3036419 A1 EP3036419 A1 EP 3036419A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston
- assembly according
- cooling channel
- beam splitter
- cooling oil
- 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.)
- Granted
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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P3/06—Arrangements for cooling pistons
- F01P3/08—Cooling of piston exterior only, e.g. by jets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P3/06—Arrangements for cooling pistons
- F01P3/10—Cooling by flow of coolant through pistons
Definitions
- the present invention relates to an assembly of a piston and a Anspritzdüse for cooling oil for an internal combustion engine, wherein the piston has a piston head and a piston skirt, wherein the piston head has a piston bottom with a bottom, a circumferential ring portion and in the region of the ring part a circumferential cooling channel with at least a feed opening for cooling oil, wherein the injection nozzle is provided below the piston skirt,
- the cooling of the piston takes place by the injection with cooling oil from the piston shaft end in the direction of the at least one feed opening for cooling oil in the cooling channel.
- the cooling oil penetrates into the cooling channel and causes there in a known per se cooling of the piston, in particular in the region of the piston head.
- DE 10 2006 056 011 A1 proposes providing two injection nozzles for cooling oil, of which one is the supply of the Cooling channel with cooling oil and the other for cooling the underside of the piston crown is used.
- the object of the present invention is to further develop a generic piston so that a technically simple and reliable An moussekühlung is achieved.
- the solution is that the piston on the underside of the piston head adjacent to the at least one feed opening for cooling oil has a beam splitter for cooling oil and that the injection nozzle is arranged below the beam splitter and aligned with the beam splitter.
- the inventively provided beam splitter causes at least temporarily a portion of the output from the only provided Anspritzdüse cooling oil jet is directed in the direction of the underside of the piston head, while the remaining part enters the cooling channel.
- the assembly according to the invention thus represents a technically simple solution for reliable Anspritzkühlung.
- the beam splitter causes during the entire stroke movement in engine operation, a division of the cooling oil jet in a directed towards the cooling channel and a directed to the underside of the piston crown partial beam.
- a particularly preferred embodiment provides that the central axis of the injection nozzle encloses an acute angle with the central axis of the piston. This oblique position of the injection nozzle causes, in engine operation, when the piston is at the top or bottom dead center, the entire cooling oil jet is passed into the cooling channel, while the division of the cooling oil jet is approximately in the middle region of the stroke.
- the inventively provided beam splitter thus crosses exactly during each up and down stroke the cooling oil jet and causes the division of the cooling oil jet in each one directed towards the cooling channel and directed to the underside of the piston crown sub-beam.
- the beam splitter has a substantially V-shaped cross section to form an edge, which is arranged starting from the central axis outwards in the direction of the cooling channel.
- the inventively provided beam splitter may be integrally formed with the piston head or as a separate, fixedly connected to the piston head component.
- the beam splitter has a first guide surface and a second guide surface, wherein the first guide surface is assigned to the cooling channel and the second guide surface is assigned to the underside of the piston head. It is particularly advantageous here when the first guide surface steadily merges into an inner wall of the cooling channel and / or the second guide surface continuously into the underside of the piston head. In this way, a particularly reliable cooling of the underside of the piston crown is achieved.
- the assembly according to the invention can be realized with all piston types, in particular with one-piece piston, piston of two or more interconnected components, box piston, piston with closed cooling channel and piston with downwardly open, closed with a closure element cooling channel, in particular piston with thermally decoupled piston shaft.
- FIG. 4 shows the piston according to FIG. 1 during a stroke movement according to FIG
- Figures 1 and 2 show an embodiment of a piston 10 for a structural unit 100 according to the invention.
- the piston 10 may be a one-piece cast or forged piston or a multi-piece joined piston.
- the piston 10 may be made of an iron-based material and / or a light metal material.
- Figures 1 and 2 show an example of a one-piece box piston 10 with downwardly open and closed with a separate closure member 18 cooling channel 17 and with a thermally decoupled piston shaft 21st
- the piston 10 has a piston head 11 with a combustion bowl 14 having a piston head 13, a peripheral land 15 and a peripheral ring portion 16 with annular grooves for receiving piston rings (not shown).
- a circumferential cooling channel 17 is provided, which is formed open at the bottom and closed with a separate closure element 18, which has at least one feed opening 19 for cooling oil.
- the piston 10 also has a thermally decoupled piston shaft 21 with piston hubs 22 and hub bores 23 for receiving a piston pin (not shown).
- the piston bosses 22 are connected in a manner known per se via hub connections to the piston head 11.
- the piston hubs 22 are connected to each other via running surfaces 24a, 24b.
- the piston head 13 has in the interior of the piston 10 on an underside 13 a, which is provided according to the invention with a beam splitter 25.
- the beam splitter 25 is arranged in the vicinity of the at least one feed opening 19 for cooling oil and, in the exemplary embodiment, has a substantially V-shaped cross section.
- the edge 25a of the beam splitter 25 is aligned, starting from the central axis M of the piston 10, outward in the direction of the cooling channel 17.
- the beam splitter 25 is formed integrally with the underside 13a of the piston head 13 in the exemplary embodiment and has a first guide surface 26 and a second guide surface 27 for cooling oil.
- the first guide surface 26 merges substantially continuously into an inner wall 17a of the cooling channel 17.
- the second guide surface 27 is in the embodiment substantially continuously in the bottom 13 a of the piston head 13 via.
- FIGS. 3 a to 3 c and 4 show an assembly 100 according to the invention in different stages of engine operation with a piston 10 according to FIGS and 2 and a Anspritzdüse 30 for cooling oil from which a cooling oil jet 31 exits.
- FIG. 3a illustrates the situation at top dead center
- FIG. 3c illustrates the situation at bottom dead center
- FIG. 3b illustrates the situation in a middle stroke position between the top dead center and the bottom dead center.
- the injection nozzle 30 is fixedly arranged in the crankcase in such a way that it is aligned with the beam splitter 25.
- the central axis A of the injection nozzle 30 is arranged so that it forms an acute angle ⁇ with the central axis M of the piston 10. This has the consequence that the piston 10 during a complete stroke from top dead center to bottom dead center and vice versa in each case once crosses the cooling oil jet 31.
- the cooling oil jet 31 In each case at the top and bottom dead center of the cooling oil jet 31 enters directly into the cooling channel 17, wherein it is guided past the beam splitter 25.
- the cooling oil jet 31 In the respective middle stroke position between the upper and the lower dead center, the cooling oil jet 31 impinges on the beam splitter 25 with the result that, as shown enlarged in FIG.
- the Anspritzdüse 30 may also be arranged so that its central axis A is aligned parallel to the central axis M of the piston 10, as indicated in Figure 4.
- the cooling oil jet 31 is divided in each phase of the lifting movement of the piston 10 into two partial beams 31a, 31b, which are respectively directed to the underside 13a of the piston head 13 and into the cooling channel 17.
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)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201310013962 DE102013013962A1 (de) | 2013-08-23 | 2013-08-23 | Baueinheit aus einem Kolben und einer Anspritzdüse für einen Verbrennungsmotor |
PCT/DE2014/000421 WO2015024551A1 (de) | 2013-08-23 | 2014-08-22 | Anordnung aus einem kolben und einer anspritzdüse für einen verbrennungsmotor |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3036419A1 true EP3036419A1 (de) | 2016-06-29 |
EP3036419B1 EP3036419B1 (de) | 2018-04-11 |
Family
ID=51655530
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14777501.9A Not-in-force EP3036419B1 (de) | 2013-08-23 | 2014-08-22 | Anordnung aus einem kolben und einer anspritzdüse für einen verbrennungsmotor |
Country Status (6)
Country | Link |
---|---|
US (1) | US9951715B2 (de) |
EP (1) | EP3036419B1 (de) |
JP (1) | JP6386048B2 (de) |
CN (1) | CN105579682B (de) |
DE (1) | DE102013013962A1 (de) |
WO (1) | WO2015024551A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3108133A1 (de) * | 2014-02-21 | 2016-12-28 | KS Kolbenschmidt GmbH | Kolben mit einem strömungsgünstige ölführungsflächen aufweisenden offenem kühlraum sowie ein verfahren zur kühlung dieses kolbens |
DE102020000381A1 (de) | 2020-01-23 | 2021-07-29 | Daimler Ag | Kolben für eine Hubkolbenmaschine eines Kraftfahrzeugs, insbesondere elnes Kraftwagens |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3018552B1 (fr) * | 2014-03-14 | 2019-07-05 | IFP Energies Nouvelles | Moteur a combustion a injection directe de combustible a allumage par compression comprenant des moyens de refroidissement du piston. |
DE102014005364A1 (de) | 2014-04-11 | 2015-10-29 | Mahle International Gmbh | Baueinheit aus einem Kolben und einer Ölspritzdüse für einen Verbrennungsmotor |
DE102014010528A1 (de) | 2014-07-18 | 2016-02-18 | Mahle International Gmbh | Pleuel sowie Baueinheit aus einem Kolben und einem Pleuel |
DE102016223530A1 (de) * | 2016-11-28 | 2018-05-30 | Federal-Mogul Nürnberg GmbH | Stahlkolben für einen Verbrennungsmotor |
JP2019052604A (ja) * | 2017-09-15 | 2019-04-04 | スズキ株式会社 | 内燃機関 |
DE102018220193A1 (de) | 2018-11-23 | 2020-05-28 | Mahle International Gmbh | Ölzuführelement und Kolben einer Brennkraftmaschine |
DE102020210907A1 (de) | 2020-08-28 | 2022-03-03 | Mahle International Gmbh | Kolben für eine Brennkraftmaschine |
DE102020006344A1 (de) | 2020-10-15 | 2022-04-21 | Daimler Ag | Gekühlter Kolben für eine Verbrennungskraftmaschine |
CH718247A1 (de) * | 2021-01-11 | 2022-07-15 | Liebherr Machines Bulle Sa | Brennkraftmaschine mit Düsenanordnung zur Kühlung und Schmierung der Kolben-Pleuel-Baugruppe. |
Family Cites Families (29)
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JPS6329104B2 (de) * | 1979-04-23 | 1988-06-10 | Kyatapiraa Inc | |
US4286505A (en) * | 1979-04-23 | 1981-09-01 | Caterpillar Tractor Co. | Oil cooled piston |
JPS588733U (ja) * | 1981-07-09 | 1983-01-20 | 厚木自動車部品株式会社 | ピストン |
DE3625492A1 (de) * | 1986-07-28 | 1988-02-04 | Kloeckner Humboldt Deutz Ag | Mehrteiliger kolben fuer eine brennkraftmaschine |
DE3717767A1 (de) | 1987-05-26 | 1988-12-08 | Mahle Gmbh | Kuehlbarer tauchkolben fuer verbrennungsmotoren |
JPS63202720U (de) * | 1987-06-20 | 1988-12-27 | ||
DE3739899A1 (de) | 1987-11-25 | 1989-06-08 | Elsbett L | Verbesserung des motorischen waermehaushaltes einer verbrennungskraftmaschine und dazugehoeriger zylinderkopf |
JP2520384Y2 (ja) | 1989-12-29 | 1996-12-18 | 株式会社ユニシアジェックス | 内燃機関用ピストンの冷却装置 |
DE4331649A1 (de) | 1993-09-17 | 1995-03-23 | Kloeckner Humboldt Deutz Ag | Kolbenkühlung einer Brennkraftmaschine |
DE4340891A1 (de) * | 1993-12-01 | 1995-06-08 | Mahle Gmbh | Hubkolben für Verbrennungsmotoren aus insbesondere Leichtmetall |
DE4446726A1 (de) * | 1994-12-24 | 1996-06-27 | Mahle Gmbh | Verfahren zur Herstellung eines einteiligen Kühlkanalkolbens |
US5595145A (en) * | 1995-05-31 | 1997-01-21 | Kabushiki Kaisha Komatsu Seisakusho | Cooling structure of diesel engine piston |
DE19703001C2 (de) * | 1997-01-28 | 1998-12-03 | Alcan Gmbh | Flüssigkeitsgekühlter Kolben |
JPH11132101A (ja) * | 1997-10-29 | 1999-05-18 | Komatsu Ltd | 内燃機関用ピストンの冷却装置 |
DE19926567A1 (de) * | 1999-06-11 | 2000-12-14 | Mahle Gmbh | Gekühlter Kolben für Verbrennungsmotoren |
DE19935399A1 (de) | 1999-07-30 | 2001-02-01 | Ks Kolbenschmidt Gmbh | Kolben für einen Verbrennungsmotor |
WO2001073275A1 (en) * | 2000-03-28 | 2001-10-04 | Federal-Mogul Corporation | Heavy duty piston having oil splash deflector |
US6609485B2 (en) * | 2001-03-29 | 2003-08-26 | International Engine Intellectual Property Company, Llc | Piston pin bushing cooler |
US6701875B2 (en) | 2002-05-31 | 2004-03-09 | Cummins Inc. | Internal combustion engine with piston cooling system and piston therefor |
DE10325917A1 (de) * | 2003-06-07 | 2005-03-31 | Mahle Gmbh | Kolben für einen Verbrennungsmotor und Gießverfahren zu dessen Herstellung |
US7086354B2 (en) * | 2003-10-29 | 2006-08-08 | Deere & Company | Cooling nozzle mounting arrangement |
JP2007146819A (ja) * | 2005-11-30 | 2007-06-14 | Komatsu Ltd | エンジン用ピストンおよびエンジン用ピストンの冷却方法 |
US7240643B1 (en) * | 2006-04-13 | 2007-07-10 | Cummins, Inc. | Piston cooling nozzle and positioning method for an internal combustion engine |
DE102006056011A1 (de) | 2006-11-28 | 2008-05-29 | Ks Kolbenschmidt Gmbh | Kühlkanalvarianten für Kolben |
DE102006056013A1 (de) * | 2006-11-28 | 2008-05-29 | Ks Kolbenschmidt Gmbh | Kühlkanalkolben |
EP2310649A4 (de) * | 2008-07-03 | 2012-07-04 | Volvo Lastvagnar Ab | Kolben für eine brennkraftmaschine |
US8511261B2 (en) * | 2010-02-23 | 2013-08-20 | Honda Motor Co., Ltd. | Piston cooling device |
DE102010045221B4 (de) * | 2010-09-13 | 2017-10-05 | Daimler Ag | Stahlkolben für Verbrennungsmotoren |
US9856820B2 (en) * | 2010-10-05 | 2018-01-02 | Mahle International Gmbh | Piston assembly |
-
2013
- 2013-08-23 DE DE201310013962 patent/DE102013013962A1/de not_active Withdrawn
-
2014
- 2014-08-22 WO PCT/DE2014/000421 patent/WO2015024551A1/de active Application Filing
- 2014-08-22 CN CN201480053638.XA patent/CN105579682B/zh not_active Expired - Fee Related
- 2014-08-22 JP JP2016535345A patent/JP6386048B2/ja not_active Expired - Fee Related
- 2014-08-22 EP EP14777501.9A patent/EP3036419B1/de not_active Not-in-force
- 2014-08-22 US US14/913,660 patent/US9951715B2/en active Active
Non-Patent Citations (1)
Title |
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See references of WO2015024551A1 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3108133A1 (de) * | 2014-02-21 | 2016-12-28 | KS Kolbenschmidt GmbH | Kolben mit einem strömungsgünstige ölführungsflächen aufweisenden offenem kühlraum sowie ein verfahren zur kühlung dieses kolbens |
DE102020000381A1 (de) | 2020-01-23 | 2021-07-29 | Daimler Ag | Kolben für eine Hubkolbenmaschine eines Kraftfahrzeugs, insbesondere elnes Kraftwagens |
Also Published As
Publication number | Publication date |
---|---|
JP2016532814A (ja) | 2016-10-20 |
JP6386048B2 (ja) | 2018-09-05 |
US20160208734A1 (en) | 2016-07-21 |
CN105579682A (zh) | 2016-05-11 |
CN105579682B (zh) | 2018-07-03 |
EP3036419B1 (de) | 2018-04-11 |
DE102013013962A1 (de) | 2015-02-26 |
US9951715B2 (en) | 2018-04-24 |
WO2015024551A1 (de) | 2015-02-26 |
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