DE102004027974A1 - A built piston and method of preventing damage in contact surfaces of the top and bottom of the piston - Google Patents
A built piston and method of preventing damage in contact surfaces of the top and bottom of the piston Download PDFInfo
- Publication number
- DE102004027974A1 DE102004027974A1 DE200410027974 DE102004027974A DE102004027974A1 DE 102004027974 A1 DE102004027974 A1 DE 102004027974A1 DE 200410027974 DE200410027974 DE 200410027974 DE 102004027974 A DE102004027974 A DE 102004027974A DE 102004027974 A1 DE102004027974 A1 DE 102004027974A1
- Authority
- DE
- Germany
- Prior art keywords
- piston
- grooves
- cooling channel
- built
- 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.)
- Ceased
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
- F02F3/0015—Multi-part pistons
- F02F3/0023—Multi-part pistons the parts being bolted or screwed together
-
- 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
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
Vorgeschlagen wird ein Verfahren zur Vermeidung von Beschädigungen in Kontakt zueinander stehender Flächen (16, 17) eines Oberteiles (4) und eines damit verbundenen Unterteiles (2) eines gebauten Kolbens (1), bei dem in zumindest eine der Flächen (16, 17) Nuten (19) eingeformt sind, die als Schmiernuten genutzt werden, die über einen Überlaufkanal (13) und über Bohrungen (18) mit dem Kühlkanal (6) verbunden sind, und die vom Kühlkanal (6) mit Öl versorgt werden. Das Öl gelangt hierbei von den Schmiernuten (19) zwischen die während des Motorbetriebes sich periodisch, kurzfristig voneinander trennenden Flächen (16, 17) und vermeidet damit Mikroverschweißungen zwischen diesen Flächen (16, 17), die zu deren Beschädigung führen würden.A method is proposed for avoiding damage in contact surfaces (16, 17) of an upper part (4) and a lower part (2) of a built-up piston (1), in which at least one of the surfaces (16, 17) Grooves (19) are formed, which are used as lubrication grooves, which are connected via an overflow channel (13) and via bores (18) with the cooling channel (6), and which are supplied from the cooling channel (6) with oil. In this case, the oil passes from the lubrication grooves (19) between the surfaces (16, 17) which are periodically separated from each other during engine operation, thereby avoiding micro welds between these surfaces (16, 17) which would damage them.
Description
Die Erfindung betrifft einen gebauten Kolben und ein Verfahren zur Vermeidung von Beschädigungen in Kontakt zueinander stehender Flächen des Oberteiles und des Unterteiles des Kolbens nach dem Oberbegriff des Anspruches 1.The The invention relates to a built piston and a method for avoidance of damage in contact with each other surfaces of the upper part and the Lower part of the piston according to the preamble of claim 1.
Das
Problem, dass wegen der während
des Motorbetriebes auf einen gebauten Kolbens einwirkenden Kräfte im Bereich
der gegenseitigen Abstützflächen des
Oberteiles und des Unterteiles des Kolbens Kaltschweißstellen
entstehen, die wegen der Relativbewegungen der Kolbenteile im Motorbetrieb zu
einer Beschädigung
der Abstützflächen führen, ist aus
der Patentschrift
Hiervon ausgehend liegt der Erfindung das Problem zugrunde, den angegebenen Nachteil des Standes der Technik zu vermeiden.Of these, the invention is based on the problem, the specified Disadvantage of the prior art to avoid.
Gelöst wird das Problem mit den in den Kennzeichen des Hauptanspruches und der Nebenansprüche stehenden Merkmalen. Eine zweckmäßige Ausgestaltung der Erfindung ist Gegenstand des Unteranspruches.Is solved the problem with the in the characteristics of the main claim and the In addition to claims standing features. An expedient embodiment The invention is the subject of the dependent claim.
Hierbei wird Öl in die Nuten eingeleitet, das sich über die gesamte Abstützfläche verteilt und dadurch auch bei höher belasteten Kolben die Bildung von Kaltschweißstellen und Mikroverschweißungen verhindert, die bei den relativ zueinander stattfindenden Bewegungen der Kolbenteile zu einer Beschädigung der Abstützflächen führen würden.in this connection becomes oil introduced into the grooves, which is distributed over the entire support surface and thereby also at higher loaded pistons prevents the formation of cold welds and micro welds, the at the relatively held movements of the piston parts to damage would lead the support surfaces.
Einige Ausführungsbeispiele der Erfindung werden im Folgenden anhand der Zeichnungen beschrieben. Es zeigenSome embodiments The invention will be described below with reference to the drawings. Show it
In
die schaftseitige Stirnfläche
der Ringwand
Zentral
weist der Kolben
Gemäß
Über in den
Figuren nicht dargestellte Zuflussöffnungen gelangt Kühlöl in den
Kühlkanal
Während des
Motorbetriebes ist es unvermeidbar, dass die Stirnfläche
Im
vorliegenden Ausführungsbeispiel
befinden sich die Schmiernuten
Gemäß einem
in den
Hierbei
wird das Öl
wegen der schnellen Hin- und Herbewegungen des Kolbens
- AA
- Ausschnittneckline
- 11
- Kolbenpiston
- 2, 2'2, 2 '
-
Unterteil
des Kolbens
1 Lower part of the piston1 - 33
- Dehnschraubejackscrew
- 44
-
Oberteil
des Kolbens
1 Upper part of the piston1 - 55
- Kolbenbodenpiston crown
- 6, 6'6 6 '
- Kühlkanalcooling channel
- 77
- Ringwandring wall
- 88th
- Ringpartiering belt
- 9, 9'9 9 '
- OberteilfußOberteilfuß
- 1010
- SchaftabstützungCommunity support
- 11, 11'11 11 '
- AuflagenfußAuflagenfuß
- 12, 12'12 12 '
- Sammelraumplenum
- 1313
- ÜberlaufkanalOverflow channel
- 1414
- Ablaufkanaldrain channel
- 1515
- KolbeninnenraumPiston interior
- 16, 16'16 16 '
- Stirnfläche, FlächeFace, area
- 17, 17'17 17 '
- Auflagefläche, FlächeBearing surface, surface
- 1818
- Bohrungdrilling
- 1919
- Nut, Schmiernutgroove lubrication
- 2020
- Nut, Schmiernut, Überlaufkanalgroove Lubrication groove, overflow channel
- 2121
- Ausnehmungrecess
- 2222
- BundFederation
Claims (4)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410027974 DE102004027974A1 (en) | 2004-06-08 | 2004-06-08 | A built piston and method of preventing damage in contact surfaces of the top and bottom of the piston |
PCT/DE2005/001013 WO2005121537A1 (en) | 2004-06-08 | 2005-06-08 | Constructed piston and method for preventing damage to abutting surfaces of the upper and lower sections of said piston |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410027974 DE102004027974A1 (en) | 2004-06-08 | 2004-06-08 | A built piston and method of preventing damage in contact surfaces of the top and bottom of the piston |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102004027974A1 true DE102004027974A1 (en) | 2005-12-29 |
Family
ID=34970434
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200410027974 Ceased DE102004027974A1 (en) | 2004-06-08 | 2004-06-08 | A built piston and method of preventing damage in contact surfaces of the top and bottom of the piston |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE102004027974A1 (en) |
WO (1) | WO2005121537A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2729689A1 (en) * | 2011-07-05 | 2014-05-14 | Mahle International GmbH | Piston for an internal combustion engine |
DE102019135134A1 (en) * | 2019-12-19 | 2021-06-24 | Ks Kolbenschmidt Gmbh | Oil-cooled pistons for internal combustion engines |
DE102021128792B3 (en) | 2021-11-05 | 2022-07-07 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Piston for a reciprocating engine, corresponding engine and motor vehicle with such |
DE102021128790A1 (en) | 2021-11-05 | 2023-05-11 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Piston assembly for an internal combustion engine |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006015587A1 (en) * | 2006-04-04 | 2007-10-11 | Mahle International Gmbh | Top part of a built-up piston |
DE102006027354A1 (en) * | 2006-06-13 | 2007-12-20 | Mahle International Gmbh | Multi-piece cooled piston for an internal combustion engine |
DE102006055251A1 (en) * | 2006-11-23 | 2008-05-29 | Mahle International Gmbh | Two-piece piston for an internal combustion engine |
KR101383121B1 (en) | 2013-07-01 | 2014-04-09 | 삼영기계주식회사 | A piston assembly |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1429327A (en) * | 1964-12-29 | 1966-02-25 | Hispano Suiza Sa | Improvements to pistons for internal combustion engines |
DE3249290T1 (en) * | 1981-12-28 | 1984-01-26 | Alco Power Inc., 13021 Auburn, N.Y. | COMPOSED PISTON |
DE2936630C2 (en) * | 1979-09-11 | 1985-05-09 | Mtu Motoren- Und Turbinen-Union Friedrichshafen Gmbh, 7990 Friedrichshafen | Pistons for an internal combustion engine |
DE3347292A1 (en) * | 1983-12-28 | 1985-07-18 | M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8900 Augsburg | Oil-cooled, built piston for internal combustion engines |
DE3633134A1 (en) * | 1986-09-30 | 1988-04-07 | Man B & W Diesel Gmbh | Built piston for internal combustion engines |
DE3719469A1 (en) * | 1987-06-11 | 1988-12-29 | Mahle Gmbh | BUILT LIQUID-COOLED PISTON FOR COMBUSTION ENGINES |
DE4118400A1 (en) * | 1990-06-29 | 1992-01-02 | Kolbenschmidt Ag | BUILT OIL-COOLED PISTON FOR DIESEL ENGINES |
DE4129746C2 (en) * | 1991-09-06 | 1994-04-14 | Man B & W Diesel Ag | Built pistons for reciprocating machines |
EP0604223A1 (en) * | 1992-12-23 | 1994-06-29 | GENERAL ELECTRIC CANADA, Inc. | Piston cap for a diesel engine |
DE4131275C2 (en) * | 1991-09-20 | 1998-04-09 | Mahle Gmbh | Built liquid-cooled piston |
DE19910582A1 (en) * | 1999-03-10 | 2000-09-28 | Mahle Gmbh | Built piston |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR917647A (en) * | 1942-07-20 | 1947-01-16 | Improvements in piston cooling | |
DE3842321A1 (en) * | 1988-12-16 | 1990-06-21 | Kolbenschmidt Ag | PISTON WITH OIL COOLING FOR INTERNAL COMBUSTION ENGINES |
DE4429489A1 (en) * | 1994-08-19 | 1996-02-22 | Mahle Gmbh | Built pistons for internal combustion engines |
DE10022035A1 (en) * | 2000-05-05 | 2001-11-08 | Mahle Gmbh | Internal combustion engine with built piston; has piston with base and lower part connected by screw having device in head to transfer oil from connecting rod to cooling chamber in piston |
-
2004
- 2004-06-08 DE DE200410027974 patent/DE102004027974A1/en not_active Ceased
-
2005
- 2005-06-08 WO PCT/DE2005/001013 patent/WO2005121537A1/en active Application Filing
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1429327A (en) * | 1964-12-29 | 1966-02-25 | Hispano Suiza Sa | Improvements to pistons for internal combustion engines |
DE2936630C2 (en) * | 1979-09-11 | 1985-05-09 | Mtu Motoren- Und Turbinen-Union Friedrichshafen Gmbh, 7990 Friedrichshafen | Pistons for an internal combustion engine |
DE3249290T1 (en) * | 1981-12-28 | 1984-01-26 | Alco Power Inc., 13021 Auburn, N.Y. | COMPOSED PISTON |
DE3347292A1 (en) * | 1983-12-28 | 1985-07-18 | M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8900 Augsburg | Oil-cooled, built piston for internal combustion engines |
DE3633134A1 (en) * | 1986-09-30 | 1988-04-07 | Man B & W Diesel Gmbh | Built piston for internal combustion engines |
DE3719469A1 (en) * | 1987-06-11 | 1988-12-29 | Mahle Gmbh | BUILT LIQUID-COOLED PISTON FOR COMBUSTION ENGINES |
DE4118400A1 (en) * | 1990-06-29 | 1992-01-02 | Kolbenschmidt Ag | BUILT OIL-COOLED PISTON FOR DIESEL ENGINES |
DE4129746C2 (en) * | 1991-09-06 | 1994-04-14 | Man B & W Diesel Ag | Built pistons for reciprocating machines |
DE4131275C2 (en) * | 1991-09-20 | 1998-04-09 | Mahle Gmbh | Built liquid-cooled piston |
EP0604223A1 (en) * | 1992-12-23 | 1994-06-29 | GENERAL ELECTRIC CANADA, Inc. | Piston cap for a diesel engine |
DE19910582A1 (en) * | 1999-03-10 | 2000-09-28 | Mahle Gmbh | Built piston |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2729689A1 (en) * | 2011-07-05 | 2014-05-14 | Mahle International GmbH | Piston for an internal combustion engine |
US9109530B2 (en) | 2011-07-05 | 2015-08-18 | Mahle International Gmbh | Piston for an internal combustion engine |
EP2729689B1 (en) * | 2011-07-05 | 2024-04-17 | Mahle International GmbH | Piston for an internal combustion engine |
DE102019135134A1 (en) * | 2019-12-19 | 2021-06-24 | Ks Kolbenschmidt Gmbh | Oil-cooled pistons for internal combustion engines |
DE102021128792B3 (en) | 2021-11-05 | 2022-07-07 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Piston for a reciprocating engine, corresponding engine and motor vehicle with such |
DE102021128790A1 (en) | 2021-11-05 | 2023-05-11 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Piston assembly for an internal combustion engine |
Also Published As
Publication number | Publication date |
---|---|
WO2005121537A1 (en) | 2005-12-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
R012 | Request for examination validly filed |
Effective date: 20110528 |
|
R016 | Response to examination communication | ||
R002 | Refusal decision in examination/registration proceedings | ||
R003 | Refusal decision now final |