WO1996022459A1 - Geschmiedeter oder gegossener kolbenkopf eines mehrteiligen kolbens - Google Patents
Geschmiedeter oder gegossener kolbenkopf eines mehrteiligen kolbens Download PDFInfo
- Publication number
- WO1996022459A1 WO1996022459A1 PCT/EP1996/000145 EP9600145W WO9622459A1 WO 1996022459 A1 WO1996022459 A1 WO 1996022459A1 EP 9600145 W EP9600145 W EP 9600145W WO 9622459 A1 WO9622459 A1 WO 9622459A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- piston
- ring section
- hubs
- crown
- forged
- Prior art date
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
- F02F3/003—Multi-part pistons the parts being connected by casting, brazing, welding or clamping
-
- 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
- F02F3/003—Multi-part pistons the parts being connected by casting, brazing, welding or clamping
- F02F2003/0061—Multi-part pistons the parts being connected by casting, brazing, welding or clamping by welding
-
- 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
-
- 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
- F05C2203/00—Non-metallic inorganic materials
- F05C2203/08—Ceramics; Oxides
- F05C2203/0865—Oxide ceramics
- F05C2203/0882—Carbon, e.g. graphite
Definitions
- the invention relates to a forged or cast piston head of a multi-part piston for
- the guiding and sealing functions are separated from one another.
- the piston head which comprises the piston crown, the ring section, the hubs and their supports, is connected to the piston skirt by the piston pin.
- This design means that the piston skirt is better shielded from the hot piston crown and ring section and can therefore be installed with less clearance than with one-piece pistons, which has a positive effect on smooth running.
- the lateral forces caused by the crank mechanism also have little influence on the piston head due to the articulated connection. This leads
- FIG. 1 shows a cross section through a piston head for a multi-part piston for diesel engines along the plane including the piston pin axis and the piston axis, consisting of a piston plate (2) forged in one piece from steel and having a combustion chamber bowl (1), the piston plate radially outwards against the piston plate ( 2) adjoining the upper part of the ring section (3), which has the uppermost ring groove, and the supports (5), which are attached to the underside of the piston crown (2) and carry the hubs (4), which are attached at a distance from the inside of the ring section (3).
- the lower part (6) of the ring section (3) consists of austenitic special cast iron or steel and is connected to the upper part via a weld seam (7). Bearing bushes (9) are inserted into the pin hub bores (8).
- FIG. 2 shows a cross section through a piston head along the plane including the piston pin axis and the piston axis for a piston in a multi-part construction, in which the piston crown (10), the hubs (11), in their bores (12), bearing bushes (13 ) are used, and the supports (14) supporting the hubs (11) are forged in one piece from steel.
- the ring section (15) which is produced separately from austenitic cast iron, is connected to the piston crown (10) via a weld seam (16).
- FIG 3 shows a side view of a piston head in the pin direction for a piston in a multi-part construction, in which the piston crown (17), the supports (18) connected to it and the ring section (19) are forged in one piece from tempered steel.
- the supports (18) are provided with a hub segment (20) into which the hub rings (21), which are made separately from the spheroidal graphite cast iron material, are inserted and connected to them via weld seams (22).
- FIG. 4 A modification of the piston head according to FIG. 3 is shown in FIG. 4, in which the hub rings (21) are opposed by steel bands (23) tensioned against their outer circumference, the ends of which are connected and positioned to the supports (18) via weld seams (24) the hub segments (20) are pressed.
- FIG. 5 shows a further modification of the piston head according to FIG. 3.
- the joints (25) of the hub segments (20) connected to the supports (18) are connected to the joints (26) of the legs (27) of the lower hub segments (28) projecting beyond the horizontal central plane of the piston pin (not shown) via weld seams (29). connected.
- FIG. 6 Another modification of the piston head according to FIG. 3 can be seen in FIG. 6, in which sections (30) protruding from the upper hub segments (20) with semicircular arc length are formed and formed by bending over to the lower hub segment (31) and the sections (30 ) are connected by a weld seam (32).
- Fig. 7 shows a along the piston axis and the piston pin axis cross section through a piston head for a piston in a multi-part construction.
- the piston crown (33), the ring portion (34), the supports (35) connected to the piston crown (33) and the Hubs (36) are forged in one piece from tempered steel.
- the hubs (36) in the piston bottom side section are narrower than the width of the bearing bushes (38) inserted into the hubs (36).
- the lateral projection of the bearing bushes (38) is supported by fillet weld seams (39), which direct the flow of force from the bearing bushes (38) into the hubs (35).
- FIG. 8 shows a modification of the piston head according to FIG. 5, in which a bearing shell (40), which is supported on the joints (26) of the lower hub segments (28), is inserted into the upper hub segments (20).
- FIG. 9 shows a further embodiment of the piston head according to FIG. 1.
- an annular sheet-metal part (41) with a cross-sectional trough is arranged above the horizontal plane enclosing the lower groove flank of the second annular groove to form a cooling belt (42).
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/849,738 US5778846A (en) | 1995-01-19 | 1996-01-16 | Forged or cast piston head of an oscillating shaft piston |
DE59604960T DE59604960D1 (de) | 1995-01-19 | 1996-01-16 | Geschmiedeter oder gegossener kolbenkopf eines mehrteiligen kolbens |
EP96900584A EP0804680B1 (de) | 1995-01-19 | 1996-01-16 | Geschmiedeter oder gegossener kolbenkopf eines mehrteiligen kolbens |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19501416A DE19501416A1 (de) | 1995-01-19 | 1995-01-19 | Geschmiedeter oder gegossener Kolbenkopf eines mehrteiligen Kolbens |
DE19501416.2 | 1995-01-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996022459A1 true WO1996022459A1 (de) | 1996-07-25 |
Family
ID=7751782
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1996/000145 WO1996022459A1 (de) | 1995-01-19 | 1996-01-16 | Geschmiedeter oder gegossener kolbenkopf eines mehrteiligen kolbens |
Country Status (4)
Country | Link |
---|---|
US (1) | US5778846A (de) |
EP (1) | EP0804680B1 (de) |
DE (2) | DE19501416A1 (de) |
WO (1) | WO1996022459A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6026777A (en) * | 1998-10-07 | 2000-02-22 | Mahle Gmbh | Piston having a barrel of forged steel and a cooling channel |
DE19943945A1 (de) * | 1999-09-14 | 2001-03-22 | Federal Mogul Wiesbaden Gmbh | Kolbenkopf |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6260472B1 (en) | 1998-07-28 | 2001-07-17 | Federal-Mogul World Wide, Inc. | One-piece integral skirt piston and method of making the same |
DE19839226A1 (de) * | 1998-08-28 | 2000-03-02 | Peter Pelz | Kolben, insbesondere für einen Verbrennungsmotor mit Doppelkurbeltrieb |
US6279455B1 (en) | 1998-10-06 | 2001-08-28 | Caterpillar Inc. | Method and apparatus for making a two piece unitary piston |
DE19926568A1 (de) * | 1999-06-11 | 2000-12-14 | Mahle Gmbh | Gekühlter Kolben für Verbrennungsmotoren |
US6327962B1 (en) | 1999-08-16 | 2001-12-11 | Caterpillar Inc. | One piece piston with supporting piston skirt |
US6286414B1 (en) | 1999-08-16 | 2001-09-11 | Caterpillar Inc. | Compact one piece cooled piston and method |
US6223701B1 (en) | 1999-08-16 | 2001-05-01 | Caterpillar Inc. | Cooled one piece piston and method |
US6318243B1 (en) | 1999-08-31 | 2001-11-20 | D. Kent Jones | Two-piece piston assembly |
WO2001050042A1 (en) | 1999-12-30 | 2001-07-12 | Federal-Mogul Corporation | Piston having uncoupled skirt |
DE10040486C2 (de) * | 2000-08-18 | 2002-10-31 | Ks Kolbenschmidt Gmbh | Stahlkolben |
DE10221561A1 (de) * | 2002-05-15 | 2004-01-08 | Mahle Gmbh | Gekühlter Kolben für einen Verbrennungsmotor |
US6703577B2 (en) * | 2002-06-10 | 2004-03-09 | Sauer-Danfoss Inc. | Method of making closed cavity pistons |
US8276563B2 (en) * | 2002-06-28 | 2012-10-02 | Cummins, Inc. | Internal combustion engine piston |
DE10244513A1 (de) * | 2002-09-25 | 2004-04-08 | Mahle Gmbh | Mehrteiliger gekühlter Kolben für einen Verbrennungsmotor und Verfahren zu dessen Herstellung |
ATE413936T1 (de) * | 2003-03-01 | 2008-11-15 | Ks Kolbenschmidt Gmbh | Herstellungsverfahren für einen kühlkanalkolben mit umformbarem bund |
FR2854089B1 (fr) * | 2003-04-23 | 2006-05-19 | Semt Pielstick | Procede de fabrication d'un piston, outillage pour la mise en oeuvre de ce procede et piston ainsi obtenu |
US6820582B1 (en) * | 2003-10-06 | 2004-11-23 | Mahle Gmbh | Cooling channel cover for a one-piece piston of an internal combustion engine |
US6892690B2 (en) * | 2003-10-06 | 2005-05-17 | Mahle Gmbh | Cooling channel cover for a one-piece piston of an internal combustion engine |
US6920860B2 (en) * | 2003-10-06 | 2005-07-26 | Mahle Gmbh | Cooling channel cover for a one-piece piston of an internal combustion engine |
US7438039B2 (en) * | 2004-02-06 | 2008-10-21 | Electro-Motive Diesel, Inc. | Large-bore, medium-speed diesel engine having piston crown bowl with acute re-entrant angle |
DE102004031513A1 (de) * | 2004-06-30 | 2006-01-26 | Ks Kolbenschmidt Gmbh | Verfahren zur Herstellung eines Kühlkanalkolbens für eine Brennkraftmaschine |
DE102008038325A1 (de) | 2007-12-20 | 2009-06-25 | Mahle International Gmbh | Verfahren zum Befestigen eines Ringelementes auf einem Kolben für einen Verbrennungsmotor |
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 |
DE102011013067A1 (de) | 2011-03-04 | 2012-09-06 | Mahle International Gmbh | Verfahren zur Herstellung eines Kolbens für einen Verbrennungsmotor |
DE102011013141A1 (de) * | 2011-03-04 | 2012-09-06 | Mahle International Gmbh | Verfahren zur Herstellung eines Kolbens für einen Verbrennungsmotor |
CN104246192B (zh) * | 2012-03-12 | 2017-02-15 | 费德罗-莫格尔公司 | 发动机活塞 |
DE102012014193A1 (de) * | 2012-07-18 | 2014-05-15 | Mahle International Gmbh | Kolben für einen Verbrennungsmotor |
DE102013014344A1 (de) * | 2013-03-18 | 2014-10-02 | Mahle International Gmbh | Verfahren zur Herstellung eines Kolbens für einen Verbrennungsmotor und mittels dieses Verfahrens hergestellter Kolben |
US10591059B2 (en) * | 2018-06-05 | 2020-03-17 | Mahle International Gmbh | Piston with cooling oil diverter |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2079441A (en) * | 1934-05-21 | 1937-05-04 | Sterling Corp | Trunk piston |
US3075817A (en) * | 1961-02-28 | 1963-01-29 | Harvey Aluminum Inc | Reinforced light weight piston |
EP0019323A1 (de) * | 1979-05-16 | 1980-11-26 | Karl Schmidt Gmbh | Kolben für Brennkraftmaschinen |
DE3042461A1 (de) * | 1980-11-11 | 1982-05-19 | Mahle Gmbh, 7000 Stuttgart | Mehrteiliger tauchkolben fuer hubkolben-verbrennungsmotoren |
DE3832022C1 (de) * | 1988-09-21 | 1989-09-21 | Mahle Gmbh, 7000 Stuttgart, De | |
DE3935078A1 (de) * | 1988-10-26 | 1990-05-03 | Metal Leve Sa | Zweiteiliger kolben und verfahren zu seiner herstellung |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
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GB1277579A (en) * | 1968-07-15 | 1972-06-14 | Wellworthy Ltd | Pistons |
DE2253868B2 (de) * | 1972-11-03 | 1980-11-20 | M.A.N. Maschinenfabrik Augsburg-Nuernberg Ag, 8500 Nuernberg | Einteiliger, mit einer Pleuelstange verbundener Gußeisenkolben |
FR2238372A5 (de) * | 1973-07-19 | 1975-02-14 | Dampers | |
JPS57210140A (en) * | 1981-06-18 | 1982-12-23 | Honda Motor Co Ltd | Fiber reinfoced piston for internal combustion engine |
DE3222582C2 (de) * | 1982-06-16 | 1985-10-03 | Berchem & Schaberg Gmbh, 4650 Gelsenkirchen | Verfahren zum Herstellen eines Kolbenbodenrohlings durch Schmieden für einen gebauten Kolben |
US4517930A (en) * | 1982-09-28 | 1985-05-21 | Kawasaki Jukogyo Kabushiki Kaisha | Piston of combustion engine |
GB8328576D0 (en) * | 1983-10-26 | 1983-11-30 | Ae Plc | Reinforcement of pistons for ic engines |
GB8328931D0 (en) * | 1983-10-29 | 1983-11-30 | Ae Plc | Pistons |
DE3502248C1 (de) * | 1985-01-24 | 1986-05-07 | Berchem & Schaberg Gmbh, 4650 Gelsenkirchen | Verfahren zur Herstellung eines einteiligen Kolbens fuer einen Verbrennungsmotor durch Schmieden |
JPS62261650A (ja) * | 1986-05-07 | 1987-11-13 | フオルクスヴア−ゲン・アクチエンゲゼルシヤフト | 内燃機関用のピストン |
KR950003748B1 (ko) * | 1986-08-01 | 1995-04-18 | 엘스베트 루드비히 | 내연기관용 실린더에서 사용되는 복합피스톤 |
JPH01117970A (ja) * | 1987-10-30 | 1989-05-10 | Izumi Jidosha Kogyo Kk | 内燃機関用ピストン |
US4986167A (en) * | 1989-05-25 | 1991-01-22 | Caterpillar Inc. | Articulated piston with a cooling recess having a preestablished volume therein |
BR9005371A (pt) * | 1990-10-18 | 1992-06-16 | Metal Leve Sa | Processo de fabricacao de embolo com galeria de refrigeracao |
BR9005376A (pt) * | 1990-10-18 | 1992-06-16 | Metal Leve Sa | Embolo bipartido com fechamento postico de galeria e processo para sua obtencao |
DE59105206D1 (de) * | 1990-12-13 | 1995-05-18 | Mahle Gmbh | Mehrteiliger, gekühlter kolben für verbrennungsmotoren. |
GB9102324D0 (en) * | 1991-02-02 | 1991-03-20 | Ae Piston Products | Pistons |
DE4208037C2 (de) * | 1992-03-13 | 1998-03-26 | Mahle Gmbh | Mehrteiliger, gekühlter Kolben für Verbrennungsmotoren |
US5425306A (en) * | 1993-11-23 | 1995-06-20 | Dana Corporation | Composite insert for use in a piston |
US5477821A (en) * | 1995-04-05 | 1995-12-26 | Cummins Engine Company, Inc. | Piston for internal combustion engine |
-
1995
- 1995-01-19 DE DE19501416A patent/DE19501416A1/de not_active Withdrawn
-
1996
- 1996-01-16 DE DE59604960T patent/DE59604960D1/de not_active Expired - Fee Related
- 1996-01-16 WO PCT/EP1996/000145 patent/WO1996022459A1/de active IP Right Grant
- 1996-01-16 EP EP96900584A patent/EP0804680B1/de not_active Expired - Lifetime
- 1996-01-16 US US08/849,738 patent/US5778846A/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2079441A (en) * | 1934-05-21 | 1937-05-04 | Sterling Corp | Trunk piston |
US3075817A (en) * | 1961-02-28 | 1963-01-29 | Harvey Aluminum Inc | Reinforced light weight piston |
EP0019323A1 (de) * | 1979-05-16 | 1980-11-26 | Karl Schmidt Gmbh | Kolben für Brennkraftmaschinen |
DE3042461A1 (de) * | 1980-11-11 | 1982-05-19 | Mahle Gmbh, 7000 Stuttgart | Mehrteiliger tauchkolben fuer hubkolben-verbrennungsmotoren |
DE3832022C1 (de) * | 1988-09-21 | 1989-09-21 | Mahle Gmbh, 7000 Stuttgart, De | |
DE3935078A1 (de) * | 1988-10-26 | 1990-05-03 | Metal Leve Sa | Zweiteiliger kolben und verfahren zu seiner herstellung |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6026777A (en) * | 1998-10-07 | 2000-02-22 | Mahle Gmbh | Piston having a barrel of forged steel and a cooling channel |
DE19943945A1 (de) * | 1999-09-14 | 2001-03-22 | Federal Mogul Wiesbaden Gmbh | Kolbenkopf |
US6435077B1 (en) | 1999-09-14 | 2002-08-20 | Federal-Mogul Wiesbaden Gmbh | Piston head |
Also Published As
Publication number | Publication date |
---|---|
EP0804680A1 (de) | 1997-11-05 |
US5778846A (en) | 1998-07-14 |
EP0804680B1 (de) | 2000-04-12 |
DE19501416A1 (de) | 1996-07-25 |
DE59604960D1 (de) | 2000-05-18 |
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