EP1063409A2 - Kolben für einen Verbrennungsmotor - Google Patents
Kolben für einen Verbrennungsmotor Download PDFInfo
- Publication number
- EP1063409A2 EP1063409A2 EP00111733A EP00111733A EP1063409A2 EP 1063409 A2 EP1063409 A2 EP 1063409A2 EP 00111733 A EP00111733 A EP 00111733A EP 00111733 A EP00111733 A EP 00111733A EP 1063409 A2 EP1063409 A2 EP 1063409A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- inlet
- piston
- openings
- cooling
- channel
- 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
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 with an annular arranged cooling channel, which has inlet and outlet openings, cooling oil through a cooling oil nozzle as a free oil jet via an inlet channel into the inlet opening and can thus be fed into the cooling channel and through at least one drain opening can be discharged via a drain channel.
- Such a piston is known for example from DE 43 40 891 A1.
- the cooling oil is connected to the motor housing by a cooling oil syringe from the crank chamber through the free interior of the piston through as free Oil jet injected into the inlet opening of the cooling channel.
- the Cooling oil jet captured as well as possible at all piston stroke positions become.
- Such a piston has the disadvantage that in engines with mutually arranged Cooling oil nozzles two piston designs (one design with one after inlet opening on the right and a version with one on the left Inlet opening) must be used. This means a lot of effort.
- the outlet opening has an elongated passage cross section the disadvantage that a high leakage oil flow and thus a reduced Cooling effect takes place.
- the present invention is based on the object Improve pistons of the type described above so that it is universal is usable and inexpensive to manufacture and has an improved cooling effect having.
- cooling channel has at least three openings, in which Cooling channel level seen from the one drain opening opposite two mutually Inlet openings to be used are arranged such that the openings in Relative to a central axis extending through the drain opening arranged symmetrically are.
- the piston is universal in engines with reciprocal arranged cooling nozzles can be used.
- the piston can both for engines with parallel to the cylinder axis and with splashing inclined to it Cooling nozzles, as well as gasoline and diesel engines are used.
- the Opening that cannot be supplied with cooling oil through a cooling nozzle serves as additional drain opening. This results in comparison to, for example slot-shaped drain opening an improved cooling effect.
- a piston 1 has a ring-shaped arrangement in its piston head region Cooling channel 2 on.
- This cooling channel 2 has two mutually usable inlet openings 3, 5, which are arranged symmetrically to the central axis and a drain opening 4.
- These openings 3, 4, 5 are inlet and outlet channels 6, 7, 8, respectively assigned.
- the channels 6, 7, 8 are advantageously rotationally symmetrical, the channels 6, 7, 8 at least in one facing away from the cooling channel Section 9 can be conical.
- the diameter of the openings 3, 4, 5 can be approx. 1/25 to approx. 1/5 of the piston diameter.
- the inlet and outlet channels 6, 7, 8 can be inclined up to approx. 15 ° with respect to the piston axis.
- the openings 3, 4, 5 can be sharp-edged, chamfered or rounded his.
- a cooling oil nozzle (not shown) is used Cooling oil is injected into the inlet channel 7 and thus into the inlet opening 3. The cooling oil arrives in the cooling channel 2 and can via the drain opening 4 and the associated drain channel 6 and via the opening 5 and the associated channel 8 drain.
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)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
Description
eine perspektivische Ansicht des erfindungsgemäßen Kolbens im Schnitt und
eine Unteransicht des erfindungsgemäßen Kolbens.
Claims (6)
- Kolben für einen Verbrennungsmotor mit einem ringförmig angeordneten Kühlkanal, der Zulauf- und Ablauföffnungen aufweist, wobei Kühlöl durch eine Kühlöldüse als freier Ölstrahl über einen Zulaufkanal in die Zulauföffnung und damit in den Kühlkanal zuführbar ist und durch mindestens eine Ablauföffnung über einen Ablaufkanal abführbar ist, dadurch gekennzeichnet, daß der Kühlkanal (2) zumindest drei Öffnungen (3, 4, 5) aufweist, wobei in der Kühlkanalebene gesehen der einen Ablauföffnung (4) gegenüberliegend zwei wechselseitig zu nutzende Zulauföffnungen (3, 5) derart angeordnet sind, daß die Öffnungen (3, 5) in Bezug auf eine durch die Ablauföffnung (4) verlaufende Mittelachse symmetrisch angeordnet sind.
- Kolben nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Zulauf- und Ablaufkanäle (6, 7, 8) rotationssymmetrisch ausgeführt sind.
- Kolben nach Anspruch 3, dadurch gekennzeichnet, daß die Zulauf- und Ablaufkanäle (6, 7, 8) zumindest in einem vom Kühlkanal abgewandten Abschnitt (9) konisch ausgeführt sind.
- Kolben nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Durchmesser der Öffnungen (3, 4, 5) ca.1/25 ― ca.1/5 des Kolbendurchmessers beträgt.
- Kolben nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Zulauf- bzw. Ablaufkanäle (6, 7, 8) bis zu ca. 15° in Bezug auf die Kolbenachse geneigt sind.
- Kolben nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Öffnungen (3, 4, 5) der Zu- und Ablaufkanäle (6, 7, 8) scharfkantig, angefast oder abgerundet ausgeführt sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19929102A DE19929102A1 (de) | 1999-06-24 | 1999-06-24 | Kolben für einen Verbrennungsmotor |
DE19929102 | 1999-06-24 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1063409A2 true EP1063409A2 (de) | 2000-12-27 |
EP1063409A3 EP1063409A3 (de) | 2001-09-19 |
EP1063409B1 EP1063409B1 (de) | 2004-08-11 |
Family
ID=7912487
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00111733A Revoked EP1063409B1 (de) | 1999-06-24 | 2000-06-02 | Kolben für einen Verbrennungsmotor |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1063409B1 (de) |
DE (2) | DE19929102A1 (de) |
PL (1) | PL340320A1 (de) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006027157A1 (de) | 2004-09-09 | 2006-03-16 | Federal-Mogul Nürnberg GmbH | Kolben für einen verbrennungsmotor sowie verbrennungsmotor |
EP1790881A3 (de) * | 2005-11-24 | 2008-03-05 | Dong Yang Piston Co., Ltd. | Kolben |
WO2010020231A2 (de) * | 2008-08-19 | 2010-02-25 | Mahle International Gmbh | Kühlkanal eines kolbens für einen verbrennungsmotor |
CN104948338A (zh) * | 2015-06-30 | 2015-09-30 | 山东滨州渤海活塞股份有限公司 | 一种具有两进一出逆向循环冷却油腔的活塞及其制备方法 |
US10227948B2 (en) | 2015-12-18 | 2019-03-12 | Mahle International Gmbh | Piston for an internal combustion engine |
USD886155S1 (en) | 2015-12-18 | 2020-06-02 | Mahle International Gmbh | Piston for an internal combustion engine |
WO2024036547A1 (en) * | 2022-08-18 | 2024-02-22 | Cummins Inc. | Internal combustion engine cast iron piston |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016221352A1 (de) | 2016-10-28 | 2018-05-03 | Mahle International Gmbh | Verfahren zur Herstellung eines Kolbens |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4340891A1 (de) | 1993-12-01 | 1995-06-08 | Mahle Gmbh | Hubkolben für Verbrennungsmotoren aus insbesondere Leichtmetall |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1118774B (it) * | 1979-06-12 | 1986-03-03 | Ass Eng Italia | Perfezionamento relativo aglistantuffi nei motori diesel |
DE3444661A1 (de) * | 1984-12-07 | 1986-06-12 | Klöckner-Humboldt-Deutz AG, 5000 Köln | Fluessigkeitsgekuehlter kolben |
DE19618625C1 (de) * | 1996-05-09 | 1997-10-23 | Daimler Benz Ag | Flüssigkeitsgekühlter Kolben für Verbrennungsmotoren |
-
1999
- 1999-06-24 DE DE19929102A patent/DE19929102A1/de not_active Withdrawn
-
2000
- 2000-05-26 PL PL00340320A patent/PL340320A1/xx not_active Application Discontinuation
- 2000-06-02 DE DE50007347T patent/DE50007347D1/de not_active Revoked
- 2000-06-02 EP EP00111733A patent/EP1063409B1/de not_active Revoked
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4340891A1 (de) | 1993-12-01 | 1995-06-08 | Mahle Gmbh | Hubkolben für Verbrennungsmotoren aus insbesondere Leichtmetall |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006027157A1 (de) | 2004-09-09 | 2006-03-16 | Federal-Mogul Nürnberg GmbH | Kolben für einen verbrennungsmotor sowie verbrennungsmotor |
EP1790881A3 (de) * | 2005-11-24 | 2008-03-05 | Dong Yang Piston Co., Ltd. | Kolben |
WO2010020231A2 (de) * | 2008-08-19 | 2010-02-25 | Mahle International Gmbh | Kühlkanal eines kolbens für einen verbrennungsmotor |
WO2010020231A3 (de) * | 2008-08-19 | 2010-04-15 | Mahle International Gmbh | Kühlkanal eines kolbens für einen verbrennungsmotor |
JP2012500354A (ja) * | 2008-08-19 | 2012-01-05 | マーレ インターナショナル ゲゼルシャフト ミット ベシュレンクテル ハフツング | 内燃機関用のピストンの冷却通路 |
CN104948338A (zh) * | 2015-06-30 | 2015-09-30 | 山东滨州渤海活塞股份有限公司 | 一种具有两进一出逆向循环冷却油腔的活塞及其制备方法 |
US10227948B2 (en) | 2015-12-18 | 2019-03-12 | Mahle International Gmbh | Piston for an internal combustion engine |
USD886155S1 (en) | 2015-12-18 | 2020-06-02 | Mahle International Gmbh | Piston for an internal combustion engine |
WO2024036547A1 (en) * | 2022-08-18 | 2024-02-22 | Cummins Inc. | Internal combustion engine cast iron piston |
Also Published As
Publication number | Publication date |
---|---|
DE19929102A1 (de) | 2000-12-28 |
DE50007347D1 (de) | 2004-09-16 |
PL340320A1 (en) | 2001-01-02 |
EP1063409A3 (de) | 2001-09-19 |
EP1063409B1 (de) | 2004-08-11 |
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