EP0007661B1 - Assemblage de piston de moteur à combustion interne comportant des moyens de refroidissement liquide - Google Patents
Assemblage de piston de moteur à combustion interne comportant des moyens de refroidissement liquide Download PDFInfo
- Publication number
- EP0007661B1 EP0007661B1 EP79200376A EP79200376A EP0007661B1 EP 0007661 B1 EP0007661 B1 EP 0007661B1 EP 79200376 A EP79200376 A EP 79200376A EP 79200376 A EP79200376 A EP 79200376A EP 0007661 B1 EP0007661 B1 EP 0007661B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston
- bearing
- ring
- gripped
- rib
- 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
Links
- 238000001816 cooling Methods 0.000 title claims description 11
- 238000002485 combustion reaction Methods 0.000 title claims description 4
- 239000007788 liquid Substances 0.000 title 1
- 239000000463 material Substances 0.000 claims description 5
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 3
- 239000002826 coolant Substances 0.000 claims description 3
- 230000005496 eutectics Effects 0.000 claims description 2
- 229910000789 Aluminium-silicon alloy Inorganic materials 0.000 claims 1
- 239000002131 composite material Substances 0.000 claims 1
- 238000005121 nitriding Methods 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000007747 plating Methods 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 229910001141 Ductile iron Inorganic materials 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000676 Si alloy Inorganic materials 0.000 description 1
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 description 1
- 238000009960 carding Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000010008 shearing Methods 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
- F02F3/18—Pistons having cooling means the means being a liquid or solid coolant, e.g. sodium, in a closed chamber in piston
-
- 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
-
- 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
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
-
- 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
- F02F2200/00—Manufacturing
- F02F2200/04—Forging of engine parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/02—Light metals
- F05C2201/021—Aluminium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/04—Heavy metals
- F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
- F05C2201/0448—Steel
Definitions
- the invention relates to a built, liquid-cooled piston for internal combustion engines, in particular for medium-speed diesel engines, the lower part of which consists of a eutectic aluminum-silicon alloy and which is connected to the upper part made of an iron material by means of screws and in which a concentrically extending part on the underside of the upper part , is arranged on an opposite support surface of the lower part via a concentric arranged intermediate ring made of a ferrous support collar such that the support collar and the intermediate ring both the radial inner boundary of the annular cooling channel located in the upper part in the area behind the top land and at least part of the ring section form as well as include a central, upwardly open cooling space connected to the cooling channel via radially arranged coolant bores.
- Cast or forged steel is a suitable material for the piston head, as is nodular cast iron with its strength values similar to those of steel.
- the piston lower part which consists of a shaft and a pin hub, can be made of a cast or forged aluminum piston alloy. Both components are connected to each other via tie rods or screws.
- Such two-part pistons all require cooling, preferably by means of a cooling oil.
- This object is achieved in that the intermediate ring is clamped between the support surface of the support collar and the opposite support surface of the lower part and in that the mutually opposite support surfaces of the support collar and intermediate ring are designed such that they can be rolled over one another over the entire circumference or the opposite support surfaces with a circular cross section are designed to slide are supported on each other.
- one or both of the opposing contact surfaces of the support collar and intermediate ring can be hardened, chrome-plated, nitrided or surface-treated in some other way.
- the intermediate ring In order to center the intermediate ring, it is either inserted in a concentric recess in the lower piston part or provided on its lower inner or outer edge with a circumferential centering lug which rests on a concentric recess in the lower piston part.
- the intermediate cross section of the intermediate ring can be rectangular, trapezoidal or similar.
- its axially extending side surfaces can be concave.
- An internal combustion engine piston in which a cross-sectionally fork-shaped intermediate ring is arranged between the steel upper part and the light metal lower part, the foot part of which is screwed to the lower part and the fork part of which is screwed to the upper part (DE-R-2 230 722 and US-A-3 877 351).
- this piston is only about a favorable arrangement of the screw elements connecting the individual components.
- FIG 3 shows a section of a longitudinal section through the upper part of a piston formed from an upper part 10 made of spheroidal graphite cast iron and a lower part 11 made from an aluminum piston alloy.
- the trapezoidal steel intermediate ring 15 is clamped between the support surface 12 of the support collar 13, which is circular in cross section, and the support surface 14 of the lower part 11, the centering nose 16 arranged on its lower outer edge abutting the recess 17 of the lower piston part 11.
- the bearing surface 12 of the support collar 13, which is circular in cross-section, is supported in a sliding manner on the opposite bearing surface 18 of the intermediate ring 15, which is in the form of a circular cross section.
- the cooling channel and the cooling space are connected to one another via the coolant bores 21 and 22, respectively.
- the advantages achieved by the invention are that no wear and tear can be detected on the bearing surface of the lower piston part even after a comparatively long piston life.
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)
Claims (6)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2832970 | 1978-07-27 | ||
DE19782832970 DE2832970A1 (de) | 1978-07-27 | 1978-07-27 | Gebauter, fluessigkeitsgekuehlter kolben fuer brennkraftmaschinen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0007661A1 EP0007661A1 (fr) | 1980-02-06 |
EP0007661B1 true EP0007661B1 (fr) | 1981-09-23 |
Family
ID=6045533
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP79200376A Expired EP0007661B1 (fr) | 1978-07-27 | 1979-07-09 | Assemblage de piston de moteur à combustion interne comportant des moyens de refroidissement liquide |
Country Status (5)
Country | Link |
---|---|
US (1) | US4356800A (fr) |
EP (1) | EP0007661B1 (fr) |
JP (2) | JPS5519999A (fr) |
DE (2) | DE2832970A1 (fr) |
ES (1) | ES244842Y (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0985739A1 (fr) * | 1998-09-10 | 2000-03-15 | MMS Marine Motor Service | Procédé pour le durcissement de têtes de piston et tête de piston |
DE102006055251A1 (de) * | 2006-11-23 | 2008-05-29 | Mahle International Gmbh | Zweiteiliger Kolben für einen Verbrennungsmotor |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5840408A (ja) * | 1981-09-04 | 1983-03-09 | Mitsubishi Heavy Ind Ltd | 燃焼器 |
DE3249290T1 (de) * | 1981-12-28 | 1984-01-26 | Alco Power Inc., 13021 Auburn, N.Y. | Zusammengesetzter kolben |
DE3303984C1 (de) * | 1983-02-05 | 1984-05-24 | Mahle Gmbh, 7000 Stuttgart | Mehrteiliger,fluessigkeitsgekuehlter Kolben fuer Verbrennungsmotoren |
DE3423559C1 (de) * | 1984-06-27 | 1985-09-26 | Mahle Gmbh, 7000 Stuttgart | Mehrteiliger Tauchkolben fuer Verbrennungsmotoren |
DE3540085A1 (de) * | 1985-11-12 | 1987-05-14 | Alcan Aluminiumwerke | Kolben fuer brennkraftmaschinen |
DE3633134A1 (de) * | 1986-09-30 | 1988-04-07 | Man B & W Diesel Gmbh | Gebauter kolben fuer brennkraftmaschinen |
GB8714287D0 (en) * | 1987-06-18 | 1987-07-22 | Ae Plc | Pistons |
US5040454A (en) * | 1988-10-21 | 1991-08-20 | Caterpillar Inc. | Piston assembly and piston member thereof having a predetermined compression height to diameter ratio |
BR9005370A (pt) * | 1990-10-18 | 1992-06-16 | Metal Leve Sa | Processo de fabricacao de embolo refrigerado |
DE4129746C2 (de) * | 1991-09-06 | 1994-04-14 | Man B & W Diesel Ag | Gebauter Kolben für Hubkolbenmaschinen |
US5499572A (en) * | 1993-08-26 | 1996-03-19 | Cobble; Daniel L. | Bi-tech piston |
DE19846152A1 (de) * | 1998-10-07 | 2000-04-13 | Mahle Gmbh | Kolben mit Kolbengrundkörper aus geschmiedetem Stahl und einem Kühlkanal |
ES2266011T3 (es) | 1999-10-08 | 2007-03-01 | Federal-Mogul Corporation | Piston con doble galeria. |
DE10028926A1 (de) * | 2000-06-10 | 2001-12-13 | Mahle Gmbh | Gebauter Kolben |
DE10244512A1 (de) * | 2002-09-25 | 2004-04-15 | Mahle Gmbh | Mehrteiliger gekühlter Kolben für einen Verbrennungsmotor |
DE102006015587A1 (de) * | 2006-04-04 | 2007-10-11 | Mahle International Gmbh | Oberteil eines gebauten Kolbens |
DE102007044106A1 (de) * | 2007-09-15 | 2009-03-19 | Mahle International Gmbh | Zweiteiliger Kolben für einen Verbrennungsmotor |
DE102007050213A1 (de) * | 2007-10-20 | 2009-04-23 | Mahle International Gmbh | Kolben für einen Verbrennungsmotor |
US20110185889A1 (en) * | 2010-02-03 | 2011-08-04 | Florin Muscas | Piston with central cooling gallery cooling feature |
US9464592B2 (en) * | 2011-04-18 | 2016-10-11 | Achates Power, Inc. | Piston thermal management in an opposed-piston engine |
US8955486B2 (en) * | 2012-02-10 | 2015-02-17 | Federal Mogul Corporation | Piston with enhanced cooling gallery |
US9951714B2 (en) | 2014-04-30 | 2018-04-24 | Federal-Mogul Llc | Steel piston with filled gallery |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2327409A1 (fr) * | 1975-10-08 | 1977-05-06 | Wellworthy Ltd | Pistons de moteur thermique |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1539882A (en) * | 1924-10-13 | 1925-06-02 | Louis R Spencer | Composite piston |
US2524273A (en) * | 1948-06-03 | 1950-10-03 | Westinghouse Electric Corp | Piston construction |
DE800350C (de) * | 1948-11-10 | 1950-10-30 | Mahle Kg | Leichtmetallkolben fuer Brennkraftmaschinen |
CH311362A (de) * | 1952-02-01 | 1955-11-30 | Maybach Motorenbau Gmbh | Mehrteiliger Kolben für Brennkraftmaschinen, insbesondere von Kraftfahrzeugen. |
US2715052A (en) * | 1953-12-23 | 1955-08-09 | Aluminum Co Of America | Collapse resistant piston |
DE1055295B (de) * | 1956-05-30 | 1959-04-16 | Maybach Motorenbau Gmbh | Druckoelkuehlung fuer einen mehrteiligen Zweitakt-Brennkraftmaschinen-Kolben |
US3240193A (en) * | 1964-07-30 | 1966-03-15 | Gen Motors Corp | Piston and piston cooling means |
FR1410387A (fr) * | 1964-07-30 | 1965-09-10 | Semt | Piston de machine ou analogue et ses diverses applications |
GB1091513A (en) * | 1965-06-11 | 1967-11-15 | Mirrlees Nat Ltd | Improvements in or relating to pistons for internal combustion engines |
US3385175A (en) * | 1966-06-15 | 1968-05-28 | Mahle Kg | Piston |
US3402644A (en) * | 1966-10-31 | 1968-09-24 | Int Harvester Co | Internal combustion engine piston with prestressed insert |
GB1237238A (en) * | 1968-10-31 | 1971-06-30 | Hepworth & Grandage Ltd | Improvements in or relating to pistons |
JPS5216252B2 (fr) * | 1971-08-18 | 1977-05-07 | ||
BE795594A (fr) * | 1972-02-18 | 1973-08-16 | Engelhard Min & Chem | Procede de conduite d'une turbine et appareil |
US3859786A (en) * | 1972-05-25 | 1975-01-14 | Ford Motor Co | Combustor |
DE2230722C3 (de) * | 1972-06-23 | 1981-12-24 | Mahle Gmbh, 7000 Stuttgart | Brennkraftmaschinenkolben, insbesondere für Dieselmaschinen, mit einem Unterteil und einem mit diesem lösbar verbundenen Oberteil |
JPS5814315B2 (ja) * | 1972-09-07 | 1983-03-18 | カシオケイサンキ カブシキガイシヤ | ジクウケソウチ |
JPS5234114A (en) * | 1975-09-10 | 1977-03-15 | Nippon Gakki Seizo Kk | Cast iron piston |
DE2626131C2 (de) * | 1976-06-11 | 1982-06-03 | Mahle Gmbh, 7000 Stuttgart | Harteloxierter Leichtmetallkolben für Verbrennungsmotoren |
DE2660387C2 (de) * | 1976-10-20 | 1983-03-10 | Mahle Gmbh, 7000 Stuttgart | Verschraubter Kolben für Verbrennungsmotoren |
JPS5741382Y2 (fr) * | 1976-11-08 | 1982-09-10 | ||
DE2723619C2 (de) * | 1977-05-25 | 1984-10-04 | Karl Schmidt Gmbh, 7107 Neckarsulm | Mehrteiliger, flüssigkeitsgekühlter Kolben für Brennkraftmaschinen |
-
1978
- 1978-07-27 DE DE19782832970 patent/DE2832970A1/de not_active Withdrawn
-
1979
- 1979-07-09 EP EP79200376A patent/EP0007661B1/fr not_active Expired
- 1979-07-09 DE DE7979200376T patent/DE2960891D1/de not_active Expired
- 1979-07-16 US US06/057,789 patent/US4356800A/en not_active Expired - Lifetime
- 1979-07-27 JP JP9597179A patent/JPS5519999A/ja active Granted
- 1979-07-27 ES ES1979244842U patent/ES244842Y/es not_active Expired
- 1979-08-07 JP JP1979108173U patent/JPS5756060Y2/ja not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2327409A1 (fr) * | 1975-10-08 | 1977-05-06 | Wellworthy Ltd | Pistons de moteur thermique |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0985739A1 (fr) * | 1998-09-10 | 2000-03-15 | MMS Marine Motor Service | Procédé pour le durcissement de têtes de piston et tête de piston |
DE102006055251A1 (de) * | 2006-11-23 | 2008-05-29 | Mahle International Gmbh | Zweiteiliger Kolben für einen Verbrennungsmotor |
US8631736B2 (en) | 2006-11-23 | 2014-01-21 | Mahle International Gmbh | Two-part piston for an internal combustion engine |
Also Published As
Publication number | Publication date |
---|---|
ES244842Y (es) | 1980-05-16 |
US4356800A (en) | 1982-11-02 |
ES244842U (es) | 1979-11-16 |
DE2960891D1 (en) | 1981-12-10 |
JPS5756060Y2 (fr) | 1982-12-03 |
EP0007661A1 (fr) | 1980-02-06 |
DE2832970A1 (de) | 1980-02-07 |
JPS6339779B2 (fr) | 1988-08-08 |
JPS5519999U (fr) | 1980-02-07 |
JPS5519999A (en) | 1980-02-13 |
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Legal Events
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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