EP1738066A1 - Kühlkanalabdeckung für einen kolben eines verbrennungsmotors - Google Patents
Kühlkanalabdeckung für einen kolben eines verbrennungsmotorsInfo
- Publication number
- EP1738066A1 EP1738066A1 EP05737984A EP05737984A EP1738066A1 EP 1738066 A1 EP1738066 A1 EP 1738066A1 EP 05737984 A EP05737984 A EP 05737984A EP 05737984 A EP05737984 A EP 05737984A EP 1738066 A1 EP1738066 A1 EP 1738066A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston
- spring plate
- radially
- cooling duct
- internal combustion
- 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
- 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
Definitions
- the invention relates to a cooling duct cover for a piston of an internal combustion engine according to the preamble of claim 1.
- cooling channel cover consisting of two semicircular disc spring halves
- both axially and radially directed forces are exerted on the annular wall 24.
- These forces are maximum at the butt ends of the disc spring halves, so that the axial forces in this area lead to a non-sinusoidal deformation of the piston ring grooves, which the piston rings housed therein cannot follow, which in particular increases the oil consumption of an internal combustion engine equipped with the piston in question.
- the radially directed and maximum forces at the abutting ends of the plate spring halves lead here to an oval cross-section deformation of the ring wall 24, which entails the risk of piston seizures.
- the invention is based on the problem of avoiding the disadvantages of the prior art mentioned.
- a useful embodiment of the invention is the subject of the dependent claim.
- FIG. 1 shows a spring plate according to the prior art for closing the cooling channel of a piston for an internal combustion engine in section
- FIG. 2 shows a spring plate according to the present invention in plan view
- FIG. 3 shows the spring plate according to the invention in section along the line III-III in FIG 2 and Fig. 4, the spring plate according to the invention after installation in a piston.
- Figures 2 and 4 show an annular spring plate 1 for closing the cooling channel 20 of a piston 8 for an internal combustion engine, which consists of two semicircular spring plate halves 2 and 3.
- Each of the two spring plate halves 2, 3 has a molded part 4 and 5, the purpose of which is to secure the spring plate 1 installed in the piston 8 against rotation.
- each of the two spring plate halves 2, 3 is provided with an opening 6 and 7 in order to introduce or discharge oil into the cooling channel.
- Fig. 3 shows a section through the spring plate 1 along the line III-IH in Fig. 2. The formation 4 and the opening 7 can be seen.
- the spring plate 1 has the shape of a flat funnel in the relaxed state.
- the spring plate 1 is shown after installation in the piston 8. It can be seen that the spring plate 1 has a flat position, i.e. that it has undergone a torsion with respect to the funnel-shaped position shown in FIG. 3.
- the torsional stress generated in this way in the spring plate 1 has the effect that its radially inner edge region 16 on the top of the piston head side, forming a first support 10, of a radially outward projection 17 of the piston base body 14 and its radially outer edge region 18 on one of a step-shaped recess 19 of the underside 15 of the ring section 13 facing away from the piston crown rests under pre-tension, and that the spring plate 1 is fixed in the piston 8.
- the spring plate 1 has an outer radius 11 (FIG. 2) which is dimensioned such that a gap 12 (FIG. 4) is formed between the spring plate 1 and the piston 8. This ensures that damage to the spring plate 1 and the piston 8 in the area of the gap 12 is avoided in the case of relative movements between the piston 8 and the spring plate 1. In addition, the areas of the supports 9 and 10 are so large that there is minimal wear here in the case of relative movements between the piston 8 and the spring plate 1.
- the two spring plate halves 2 and 3 are placed on the underside 15 of the ring section 13 facing away from the piston crown, are exposed on their radial inside to an axial force acting in the direction of the piston crown 21 and thereby set in torsion so far that the radially inner edge region 16 of the spring plate halves 2, 3 comes to lie above the first support 10. Then the spring plate halves 2, 3 are pushed into their position shown in FIG. 4 by means of a radially inward force.
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
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004019011A DE102004019011A1 (de) | 2004-04-20 | 2004-04-20 | Kühlkanalabdeckung für einen Kolben eines Verbrennungsmotors |
PCT/DE2005/000717 WO2005103473A1 (de) | 2004-04-20 | 2005-04-19 | Kühlkanalabdeckung für einen kolben eines verbrennungsmotors |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1738066A1 true EP1738066A1 (de) | 2007-01-03 |
EP1738066B1 EP1738066B1 (de) | 2018-01-24 |
Family
ID=34965970
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05737984.4A Active EP1738066B1 (de) | 2004-04-20 | 2005-04-19 | Kühlkanalabdeckung für einen kolben eines verbrennungsmotors |
Country Status (8)
Country | Link |
---|---|
US (1) | US7415959B2 (de) |
EP (1) | EP1738066B1 (de) |
JP (1) | JP4598059B2 (de) |
KR (1) | KR101246395B1 (de) |
CN (1) | CN1977103A (de) |
BR (1) | BRPI0510067B1 (de) |
DE (1) | DE102004019011A1 (de) |
WO (1) | WO2005103473A1 (de) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8347842B2 (en) * | 2008-02-19 | 2013-01-08 | Federal-Mogul Corporation | Coolable piston for internal combustion engine |
US7762227B2 (en) * | 2008-02-19 | 2010-07-27 | Federal Mogul Corporation | Coolable piston for internal combustion engine |
DE102008055848A1 (de) * | 2008-11-04 | 2010-05-06 | Ks Kolbenschmidt Gmbh | Kühlkanalkolben einer Brennkraftmaschine mit einem Verschlusselement, das den Kühlkanal verschließt |
US8601996B2 (en) * | 2009-05-08 | 2013-12-10 | Caterpillar Inc. | Single piece piston body for an internal combustion engine |
US9464592B2 (en) * | 2011-04-18 | 2016-10-11 | Achates Power, Inc. | Piston thermal management in an opposed-piston engine |
CN102330584B (zh) * | 2011-08-05 | 2012-12-19 | 无锡开普动力有限公司 | 一种用于往复活塞式内燃机活塞连杆的冷却润滑结构 |
DE102011115847A1 (de) | 2011-10-13 | 2013-04-18 | Daimler Ag | Kühlkanalkolben und Verfahren zu dessen Herstellung |
DE102012014195A1 (de) | 2012-07-18 | 2014-01-23 | Mahle International Gmbh | Kolben für einen Verbrennungsmotor |
US9243709B2 (en) | 2013-03-14 | 2016-01-26 | Mahle International Gmbh | Welded piston assembly |
CN104214002A (zh) * | 2013-05-22 | 2014-12-17 | 艾克莫特公司 | 用于活塞的热障 |
DE102013009164A1 (de) * | 2013-05-31 | 2014-12-04 | Mahle International Gmbh | Kolben für einen Verbrennungsmotor |
DE102014015947A1 (de) | 2014-10-30 | 2016-05-19 | Mahle International Gmbh | Kühlkanalabdeckung sowie mit einer Kühlkanalabdeckung versehener Kolben |
DE102021200419A1 (de) | 2021-01-18 | 2022-07-21 | Mahle International Gmbh | Kolben für eine Brennkraftmaschine |
US11946434B1 (en) | 2023-02-08 | 2024-04-02 | Innio Jenbacher Gmbh & Co Og | System and method for enclosing piston cooling gallery |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE252638C (de) | ||||
DD252638A1 (de) * | 1986-09-17 | 1987-12-23 | Ifa Motorenwerke | Spritzoelgekuehlter eisenkolben fuer hubkolbenbrennkraftmaschinen |
BR9005371A (pt) | 1990-10-18 | 1992-06-16 | Metal Leve Sa | Processo de fabricacao de embolo com galeria de refrigeracao |
DE4039751A1 (de) | 1990-12-13 | 1992-06-17 | Mahle Gmbh | Mehrteililger, gekuehlter kolben fuer verbrennungsmotoren |
JP3224389B2 (ja) * | 1990-12-13 | 2001-10-29 | 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 | 内燃機関用の多部分から構成された冷却式ピストン |
DE4208037C2 (de) | 1992-03-13 | 1998-03-26 | Mahle Gmbh | Mehrteiliger, gekühlter Kolben für Verbrennungsmotoren |
DE4430137B4 (de) * | 1994-08-25 | 2004-07-22 | Mahle Gmbh | Mehrteiliger, gekühlter Kolben für Verbrennungsmotoren |
DE4446726A1 (de) * | 1994-12-24 | 1996-06-27 | Mahle Gmbh | Verfahren zur Herstellung eines einteiligen Kühlkanalkolbens |
KR970044451A (ko) * | 1995-12-30 | 1997-07-26 | 전성원 | 차량용 피스톤의 냉각장치 |
KR970044443A (ko) * | 1995-12-30 | 1997-07-26 | 전성원 | 차량용 피스톤의 냉각 장치 |
DE19720958B4 (de) * | 1997-05-17 | 2007-07-26 | Mahle Gmbh | Mehrteiliger, gekühlter Kolben für Verbrennungsmotoren |
JP3873157B2 (ja) * | 1997-11-13 | 2007-01-24 | カシオ計算機株式会社 | 電子カメラ装置および撮像方法 |
DE19926567A1 (de) * | 1999-06-11 | 2000-12-14 | Mahle Gmbh | Gekühlter Kolben für Verbrennungsmotoren |
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 |
US6401595B1 (en) * | 2000-10-18 | 2002-06-11 | Caterpillar Inc. | Piston for an internal combustion engine and method of assembly |
DE10132446A1 (de) * | 2001-07-04 | 2003-01-30 | Ks Kolbenschmidt Gmbh | Kolben, bestehend aus zusammengeschweißtem Ober- und Unterteil |
US6532913B1 (en) * | 2001-11-27 | 2003-03-18 | Caterpillar Inc | Piston cooling fin |
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 |
US6938604B2 (en) * | 2003-10-06 | 2005-09-06 | Mahle Gmbh | Cooling channel cover for a one-piece piston of an internal combustion engine |
-
2004
- 2004-04-20 DE DE102004019011A patent/DE102004019011A1/de not_active Withdrawn
-
2005
- 2005-04-19 US US11/578,876 patent/US7415959B2/en active Active
- 2005-04-19 EP EP05737984.4A patent/EP1738066B1/de active Active
- 2005-04-19 KR KR1020067023476A patent/KR101246395B1/ko active IP Right Grant
- 2005-04-19 CN CNA2005800128606A patent/CN1977103A/zh active Pending
- 2005-04-19 WO PCT/DE2005/000717 patent/WO2005103473A1/de active Application Filing
- 2005-04-19 BR BRPI0510067A patent/BRPI0510067B1/pt active IP Right Grant
- 2005-04-19 JP JP2007508723A patent/JP4598059B2/ja active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2005103473A1 * |
Also Published As
Publication number | Publication date |
---|---|
KR101246395B1 (ko) | 2013-03-21 |
CN1977103A (zh) | 2007-06-06 |
KR20070009683A (ko) | 2007-01-18 |
BRPI0510067A (pt) | 2007-10-16 |
JP4598059B2 (ja) | 2010-12-15 |
WO2005103473A1 (de) | 2005-11-03 |
JP2007533904A (ja) | 2007-11-22 |
BRPI0510067B1 (pt) | 2018-09-04 |
US20070209614A1 (en) | 2007-09-13 |
DE102004019011A1 (de) | 2005-11-17 |
US7415959B2 (en) | 2008-08-26 |
EP1738066B1 (de) | 2018-01-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1738066A1 (de) | Kühlkanalabdeckung für einen kolben eines verbrennungsmotors | |
EP1960653B1 (de) | Zweiteiliger kolben für einen verbrennungsmotor | |
EP2680989B1 (de) | Verfahren zur herstellung eines kolbens für einen verbrennungsmotor | |
EP2027381B1 (de) | Mehrteiliger gekühlter kolben für einen verbrennungsmotor | |
WO2006058524A1 (de) | Mehrteiliger, gekühlter kolben für einen verbrennungsmotor | |
EP2196657B1 (de) | Kolben für einen Verbrennungsmotor | |
EP2342441B1 (de) | Kühlkanalkolben einer brennkraftmaschine mit einem verschlusselement, das den kühlkanal verschliesst | |
EP2113319B1 (de) | Gießkern zur Bildung eines Kühlkanals | |
DE102014015946A1 (de) | Kühlkanalabdeckung sowie mit einer Kühlkanalabdeckung versehener Kolben | |
DE102007060472A1 (de) | Zweiteiliger Kolben für einen Verbrennungsmotor | |
WO2004008006A1 (de) | Kolben für einen verbrennungsmotor | |
DE102011115639A1 (de) | Kolben für einen Verbrennungsmotor | |
DE10326456A1 (de) | Kolben für einen Verbrennungsmotor | |
DE10325914B4 (de) | Kolben für einen Verbrennungsmotor | |
EP1819921B1 (de) | Kolben für einen verbrennungsmotor | |
WO2006072293A1 (de) | Kolbenfenster mit scuppersolts und freiguss | |
WO2017016934A1 (de) | Kolben für einen verbrennungsmotor | |
WO2011012625A1 (de) | Pleuel | |
DE102014015947A1 (de) | Kühlkanalabdeckung sowie mit einer Kühlkanalabdeckung versehener Kolben | |
DE102004019010A1 (de) | Kühlkanalabdeckung für einen Kolben eines Verbrennungsmotors | |
DE3643198C2 (de) | ||
EP0894966B1 (de) | Kolben für einen Verbrennungsmotor | |
DE102019211336B4 (de) | Kolben mit Sicherungsringnut in der Bolzenbohrung für einen Verbrennungsmotor | |
EP0910760B1 (de) | Hubkolbenbrennkraftmaschine | |
DE102006015585A1 (de) | Kolben für einen Verbrennungsmotor |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20061107 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR GB |
|
17Q | First examination report despatched |
Effective date: 20070226 |
|
DAX | Request for extension of the european patent (deleted) | ||
RBV | Designated contracting states (corrected) |
Designated state(s): DE FR GB |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
INTG | Intention to grant announced |
Effective date: 20170905 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 502005015781 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 502005015781 Country of ref document: DE |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20180424 |
|
26N | No opposition filed |
Effective date: 20181025 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180424 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180430 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20230420 Year of fee payment: 19 |