EP1828587B1 - Mehrteiliger, gekühlter kolben für einen verbrennungsmotor - Google Patents
Mehrteiliger, gekühlter kolben für einen verbrennungsmotor Download PDFInfo
- Publication number
- EP1828587B1 EP1828587B1 EP05816542A EP05816542A EP1828587B1 EP 1828587 B1 EP1828587 B1 EP 1828587B1 EP 05816542 A EP05816542 A EP 05816542A EP 05816542 A EP05816542 A EP 05816542A EP 1828587 B1 EP1828587 B1 EP 1828587B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston
- cooling duct
- cover
- cooling channel
- 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.)
- Expired - Fee Related
Links
- 238000002485 combustion reaction Methods 0.000 title claims description 6
- 238000001816 cooling Methods 0.000 claims description 63
- 230000001154 acute effect Effects 0.000 claims description 2
- 238000004080 punching Methods 0.000 claims description 2
- 238000005553 drilling Methods 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000005352 clarification Methods 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000284 resting effect 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
-
- 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
Definitions
- the invention relates to a multi-part cooled piston according to the preamble of claim.
- a multi-part, cooled piston of the above type is disclosed in the publication DE 102 57 022 known.
- a molded into the piston upper part of the cooling channel is closed by a piston lower part.
- the disadvantage here is that for this purpose, the lower piston part in the region of the cooling channel must have a special shape, which leads to a significant increase in the cost of piston production.
- pistons made in this way have a relatively large weight.
- the cooling channel cover is installed absolutely secure against rotation in the piston by a tongue is punched in the radially linear portion of a plate spring-shaped cooling channel cover, and this tongue is slightly bent, so that they are molded into a recess formed in the piston outer side can intervene.
- FIG. 1 a multi-part, cooled piston 1 is shown, which consists of a piston upper part 2 with a combustion bowl 3 in the piston head 30 and an annular wall 4 with ring portion 5 in the radially outer piston region and a piston lower part 6, a box-shaped piston shaft 7 and two associated pin bosses 8, each with a pin bore 9 for receiving a piston pin, not shown in the figure.
- the piston upper part 2 has an outer annular cooling channel 10 and an inner cooling channel 11 arranged concentrically therewith, wherein the outer cooling channel 10 is closed by a plate spring-like, slightly conically shaped and formed as a one-piece, closed ring cooling channel cover 12, not shown in the figures Having openings for introducing and discharging cooling oil.
- the outer cooling channel 10 is connected via at least one overflow channel 13 with the inner cooling channel 11. This overflow channel 13 may be formed as a bore.
- the inner cooling channel 11 has at least one drain hole 14, via which the cooling oil can run out of the inner cooling channel 11.
- the upper piston part 2 is mounted on an upper bearing surface 16 of an annular hub support 17 of the lower piston part 6 via an annular bearing surface 15, which is arranged on the underside of the piston upper part 2 facing away from the combustion bowl 3.
- the piston upper part 2 On the underside facing away from the combustion bowl 3, the piston upper part 2 has a bolt 19 arranged centrally and coaxially with the piston axis 18, the end 20 of which is provided with a thread 21.
- a radially inward to the hub support 17 adjacent region 22 of the piston lower part 6, which defines the inner cooling channel 11 together with the upper piston part 2, is formed relatively thin-walled and is provided in its center with a coaxial with the piston axis 18 arranged bore 23, the one on the thread 21 of the bolt 19 matching Internal thread 24 has.
- the upper piston part 2 is made of steel and can either be forged or manufactured by continuous casting.
- the piston bottom 6 is preferably forged from steel.
- the closed cooling channel 10 is closed by the plate-spring-like cooling channel cover 12, so that it can be seen that the radially outer region 12 'of the cooling channel cover 12 in a radially inner, stepped recess 27 which is formed in the hub-facing end face 26 of the annular wall 4, and that the radially inner region 12 "of the cooling channel cover 12 rests on a projection 29 integrally formed on the hub support 17. Further, it can be seen that the inner region 12" of the cooling channel cover 12 has a hub-bent tongue 25 which projects into a radially outward direction in the Protrusion 29 incorporated recess 28 engages to thereby achieve a backup of the cooling channel cover 12 against rotation during assembly and engine operation.
- FIGS. 3 to 6 show in plan view a part of the cooling channel cover 12, in the inner region 12 "of two juxtaposed punched 31 and 32, the tongue 25 is formed, which, as Fig. 4 , A sectional view of the cooling channel cover 12 along the line CC in Fig. 3 , is bent away from the imaginary plane formed by the cooling channel cover 12 and includes an acute angle ⁇ with the inner portion 12 "of the cooling channel cover 12.
- FIG. 5 A partial section through the hub support 17 (without representation of the cooling channel cover 12) along the line AA in Fig. 2 , Shows shape and arrangement of the molded in the radial outer side of the hub support 17 recess 28 for receiving the tongue 25th
- the plate spring-shaped cooling channel cover 12 is placed on the piston lower part such that, as in Fig. 6 is shown, the tongue 25 engages in the recess 28.
- the upper piston part 2 is screwed onto the lower piston part 6, wherein the threaded bolt 19 of the piston upper part 2 is screwed into the threaded bore 23 of the region 22.
- the elasticity of the relatively thin-walled region 22 causes it to deform like a disk spring when the upper and lower piston parts 2, 6 are screwed together and bulges the inner center of the region 22, which is provided with the threaded bore 23, in the direction of the piston upper part 2.
- the conical shape of the cooling channel cover 12 is more pronounced in the relaxed state than in the installed state.
- the taper of the cooling channel cover 12 is reduced, that is, the shape of the cooling channel cover 12 is flatter, and in the cooling channel cover 12th a bias voltage is generated, which ensures after the final assembly of the piston 1, that the cooling channel cover 12 partially rests firmly in the recess 27 of the end face 26 and partly on the projection 29, and that a secure and firm installation of the cooling channel cover 12 in the piston 1 also at ensures fast reciprocating movements of the piston 1, which are common in engine operation.
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)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004057624A DE102004057624A1 (de) | 2004-11-30 | 2004-11-30 | Mehrteiliger, gekühlter Kolben für einen Verbrennungsmotor |
PCT/DE2005/002143 WO2006058524A1 (de) | 2004-11-30 | 2005-11-28 | Mehrteiliger, gekühlter kolben für einen verbrennungsmotor |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1828587A1 EP1828587A1 (de) | 2007-09-05 |
EP1828587B1 true EP1828587B1 (de) | 2010-02-10 |
Family
ID=35966440
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05816542A Expired - Fee Related EP1828587B1 (de) | 2004-11-30 | 2005-11-28 | Mehrteiliger, gekühlter kolben für einen verbrennungsmotor |
Country Status (6)
Country | Link |
---|---|
US (1) | US7743745B2 (ja) |
EP (1) | EP1828587B1 (ja) |
JP (1) | JP5026983B2 (ja) |
BR (1) | BRPI0518704A2 (ja) |
DE (2) | DE102004057624A1 (ja) |
WO (1) | WO2006058524A1 (ja) |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005041409A1 (de) * | 2005-09-01 | 2007-03-08 | Mahle International Gmbh | Zweiteiliger Kolben für einen Verbrennungsmotor |
DE102005042003A1 (de) * | 2005-09-05 | 2007-03-08 | Mahle International Gmbh | Gebauter, flüssigkeitsgekühlter Kolben |
DE102006002949A1 (de) * | 2006-01-21 | 2007-08-02 | Ks Kolbenschmidt Gmbh | Kühlkanalkolben für eine Brennkraftmaschine |
DE102006045728A1 (de) * | 2006-09-27 | 2008-04-03 | Mahle International Gmbh | Einteiliger Kolben für einen Verbrennungsmotor |
DE102007027162A1 (de) | 2007-06-13 | 2008-12-18 | Mahle International Gmbh | Zweiteiliger Kolben für einen Verbrennungsmotor |
DE102007031400A1 (de) * | 2007-07-05 | 2009-01-08 | Ks Kolbenschmidt Gmbh | Einteiliger Kühlkanalkolben mit zwei miteinander verschraubten Kolbenteilen |
JP4510061B2 (ja) * | 2007-09-18 | 2010-07-21 | 理研鍛造株式会社 | 内燃機関用ピストンの製造方法 |
FR2925604A1 (fr) * | 2007-12-19 | 2009-06-26 | Renault Sas | Chambre de combustion pour moteur thermique a injection directe suralimente |
DE102008055848A1 (de) * | 2008-11-04 | 2010-05-06 | Ks Kolbenschmidt Gmbh | Kühlkanalkolben einer Brennkraftmaschine mit einem Verschlusselement, das den Kühlkanal verschließt |
DE102008056203A1 (de) * | 2008-11-06 | 2010-05-12 | Mahle International Gmbh | Mehrteiliger Kolben für einen Verbrennungsmotor und Verfahren zu seiner Herstellung |
DE102008062219A1 (de) * | 2008-12-13 | 2010-06-17 | Mahle International Gmbh | 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 |
US9010296B2 (en) * | 2010-06-29 | 2015-04-21 | Kolbenschmidt K. K. | Piston for spark-ignition engine |
WO2012010285A1 (de) * | 2010-07-19 | 2012-01-26 | Ks Kolbenschmidt Gmbh | Verfahren zur herstellung eines kühlkanalkolbens für brennkraftmaschinen und derart hergestellter kolben |
US9856820B2 (en) * | 2010-10-05 | 2018-01-02 | Mahle International Gmbh | Piston assembly |
DE102010056218A1 (de) * | 2010-12-24 | 2012-06-28 | Mahle International Gmbh | Kolben für einen Verbrennungsmotor |
DE102010056220A1 (de) * | 2010-12-24 | 2012-06-28 | Mahle International Gmbh | Kolben für einen Verbrennungsmotor |
DE102011013113A1 (de) * | 2011-03-04 | 2012-09-06 | Mahle International Gmbh | Kolben für einen Verbrennungsmotor und Verfahren zu seiner Herstellung |
US9464592B2 (en) * | 2011-04-18 | 2016-10-11 | Achates Power, Inc. | Piston thermal management in an opposed-piston engine |
DE102011106559A1 (de) * | 2011-07-05 | 2013-01-10 | Mahle International Gmbh | Kolben für einen Verbrennungsmotor |
DE102011119525A1 (de) * | 2011-11-26 | 2013-05-29 | Mahle International Gmbh | Kolben für einen Verbrennungsmotor |
DE102012014192A1 (de) * | 2012-07-18 | 2014-01-23 | Mahle International Gmbh | Kolben für einen Verbrennungsmotor |
DE102012213558A1 (de) * | 2012-08-01 | 2014-02-06 | Mahle International Gmbh | Kolben |
US9228480B2 (en) | 2014-06-06 | 2016-01-05 | Mahle Industries, Incorporated | Piston crown cooling gallery insert |
DE102014015947A1 (de) * | 2014-10-30 | 2016-05-19 | Mahle International Gmbh | Kühlkanalabdeckung sowie mit einer Kühlkanalabdeckung versehener Kolben |
DE102016114954A1 (de) * | 2015-08-11 | 2017-02-16 | Ks Kolbenschmidt Gmbh | Verfahren zur Herstellung eines Monoblock-Kolbens und Monoblock-Kolben |
FR3040745B1 (fr) * | 2015-09-04 | 2018-07-13 | Soc De Motorisations Aeronautiques | Ensemble pour moteur a combustion interne comprenant un piston et une plaque de fermeture d'une galerie de refroidissement du piston |
JP2017089471A (ja) * | 2015-11-09 | 2017-05-25 | いすゞ自動車株式会社 | スチールピストン、スチールピストンの冷却方法、及びスチールピストンの製造方法 |
DE102016225635A1 (de) * | 2016-12-20 | 2018-06-21 | Mahle International Gmbh | Kolben einer Brennkraftmaschine |
DE102018201556A1 (de) * | 2018-02-01 | 2019-08-01 | Volkswagen Aktiengesellschaft | Hubkolben für eine Hubkolbenbrennkraftmaschine und Verwendung eines Hubkolbens in einer Hubkolbenbrennkraftmaschine |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD252638A1 (de) * | 1986-09-17 | 1987-12-23 | Ifa Motorenwerke | Spritzoelgekuehlter eisenkolben fuer hubkolbenbrennkraftmaschinen |
DE3719469A1 (de) * | 1987-06-11 | 1988-12-29 | Mahle Gmbh | Gebauter fluessigkeitsgekuehlter kolben fuer verbrennungsmotoren |
DE3830033C2 (de) * | 1987-11-30 | 1998-05-07 | Mahle Gmbh | Gebauter, ölgekühlter Tauchkolben für Verbrennungsmotoren |
IT1240526B (it) * | 1990-07-31 | 1993-12-17 | Borgo Nova S.P.A. | Perfezionamento relativo a pistoni, in genere. |
DE4039754A1 (de) * | 1990-12-13 | 1992-06-17 | Mahle Gmbh | Mehrteiliger, gekuehlter kolben fuer verbrennungsmotoren |
DE4039751A1 (de) * | 1990-12-13 | 1992-06-17 | Mahle Gmbh | Mehrteililger, gekuehlter kolben fuer verbrennungsmotoren |
DE4137126A1 (de) * | 1991-07-25 | 1993-05-13 | Mahle Gmbh | Mehrteiliger, gekuehlter kolben fuer verbrennungsmotoren |
DE4208037C2 (de) * | 1992-03-13 | 1998-03-26 | Mahle Gmbh | Mehrteiliger, gekühlter Kolben für Verbrennungsmotoren |
DE4446726A1 (de) * | 1994-12-24 | 1996-06-27 | Mahle Gmbh | Verfahren zur Herstellung eines einteiligen Kühlkanalkolbens |
DE19926568A1 (de) * | 1999-06-11 | 2000-12-14 | Mahle Gmbh | Gekühlter Kolben für Verbrennungsmotoren |
DE19960913A1 (de) * | 1999-12-17 | 2001-06-21 | Mahle Gmbh | Untere Abdeckung eines Kühlraumes für Kolben von Verbrennungsmotoren |
DE10210570A1 (de) | 2002-03-09 | 2003-09-18 | Mahle Gmbh | Mehrteiliger gekühlter Kolben für einen Verbrennungsmotor |
DE10221561A1 (de) * | 2002-05-15 | 2004-01-08 | Mahle Gmbh | Gekühlter Kolben für einen Verbrennungsmotor |
US6701875B2 (en) * | 2002-05-31 | 2004-03-09 | Cummins Inc. | Internal combustion engine with piston cooling system and piston therefor |
DE10244511A1 (de) * | 2002-09-25 | 2004-04-15 | Mahle Gmbh | Mehrteiliger gekühlter Kolben für einen Verbrennungsmotor |
DE10257022A1 (de) * | 2002-12-06 | 2004-06-17 | Mahle Gmbh | Mehrteiliger gekühlter Kolben für einen Verbrennungsmotor |
US6938604B2 (en) * | 2003-10-06 | 2005-09-06 | Mahle Gmbh | Cooling channel cover for a one-piece piston of an internal combustion engine |
-
2004
- 2004-11-30 DE DE102004057624A patent/DE102004057624A1/de not_active Withdrawn
-
2005
- 2005-11-28 JP JP2007543694A patent/JP5026983B2/ja not_active Expired - Fee Related
- 2005-11-28 EP EP05816542A patent/EP1828587B1/de not_active Expired - Fee Related
- 2005-11-28 WO PCT/DE2005/002143 patent/WO2006058524A1/de active Application Filing
- 2005-11-28 DE DE502005009010T patent/DE502005009010D1/de active Active
- 2005-11-28 US US11/791,777 patent/US7743745B2/en not_active Expired - Fee Related
- 2005-11-28 BR BRPI0518704-4A patent/BRPI0518704A2/pt not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JP2008522088A (ja) | 2008-06-26 |
JP5026983B2 (ja) | 2012-09-19 |
DE502005009010D1 (de) | 2010-03-25 |
US20080121204A1 (en) | 2008-05-29 |
US7743745B2 (en) | 2010-06-29 |
EP1828587A1 (de) | 2007-09-05 |
WO2006058524A1 (de) | 2006-06-08 |
DE102004057624A1 (de) | 2006-06-01 |
BRPI0518704A2 (pt) | 2008-12-02 |
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