EP3612727A1 - Kolben in strukturbauweise - Google Patents
Kolben in strukturbauweiseInfo
- Publication number
- EP3612727A1 EP3612727A1 EP18719122.6A EP18719122A EP3612727A1 EP 3612727 A1 EP3612727 A1 EP 3612727A1 EP 18719122 A EP18719122 A EP 18719122A EP 3612727 A1 EP3612727 A1 EP 3612727A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston
- around
- rib
- region
- ribs
- 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.)
- Withdrawn
Links
- 239000000463 material Substances 0.000 claims abstract description 9
- 238000002485 combustion reaction Methods 0.000 claims abstract description 7
- 238000005304 joining Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 239000011324 bead Substances 0.000 claims description 6
- 238000005242 forging Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000002826 coolant Substances 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims description 2
- 238000001816 cooling Methods 0.000 description 6
- 239000003351 stiffener Substances 0.000 description 3
- 238000005266 casting Methods 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
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
- F02F3/0076—Pistons the inside of the pistons being provided with ribs or fins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/10—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass pistons
-
- 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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J1/00—Pistons; Trunk pistons; Plungers
- F16J1/02—Bearing surfaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J1/00—Pistons; Trunk pistons; Plungers
- F16J1/04—Resilient guiding parts, e.g. skirts, particularly for trunk pistons
-
- 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
Definitions
- the invention relates to a weight-optimized piston of an internal combustion engine and to a method for producing a weight-optimized piston according to the features of the respective preamble of the two independent claims.
- pistons are made from forged piston blanks.
- a production method is known from DE 10 2004 031 513 A1.
- a piston blank is forged and reshaped a projecting collar, so as to achieve the largely final shape of the piston, wherein behind the formed collar, a cavity is formed, which can be used for example as a cooling channel.
- the ready piston is available.
- the known piston is not yet optimized in terms of its weight, so that it is the object of the invention to reduce such a piston in terms of its weight, without suffering from the durability or strength.
- the invention is therefore based on the object to provide a piston improved over the known piston and a corresponding improved method for producing in particular a generic piston.
- the structural design of the piston 1 is characterized by at least one rib at a suitable location.
- the ribs are a rib 5 which is arranged on the inside of the respective supporting shaft wall section 2, and / or a rib 6 connecting the two pin hubs 4 in the interior area and / or a rib 7 extending transversely to a pin bore axis.
- FIG. 2 10 denotes a lifting groove and 1 1 denotes an opening for a cooling medium, which can be introduced and removed into a cooling channel (not shown here) of the piston.
- FIG. 3 is based on the piston 1 according to FIG. 1, wherein to clarify the course of the ribs 5, 6, 7 and their transition into areas with reduced wall thickness RW gridlines are shown.
- FIG. 4 is based on the piston 1 according to FIG.
- a circumferential bead 12 is arranged, wherein in a Sectionberiech around the opening 1 1 together with a Generalberiech the circumferential bead 12 a recess (trough 13) is formed.
- a recess trough 13
- the circumferential bead 12 thus causes a stiffening and the tub 13 not only a material reduction, but also a storage reservoir for the cooling medium for the purpose of further improved cooling of the piston first With 14, a beam splitter is referred to within the cooling channel, not shown, which may be present, but does not have to be present.
- FIG. 5 shows the situation with the piston, as is known from DE 10 2004 031 513 A1.
- This known piston has three annular grooves 15, 16, 17, wherein the free circumferential edge region of the deformed collar is materially connected in a joining region 18 to the main body of the piston blank.
- This joining region 18 lies in the region of the lowest (third) annular groove 17.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (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 |
---|---|---|---|
DE102017108314 | 2017-04-19 | ||
PCT/EP2018/059875 WO2018192959A1 (de) | 2017-04-19 | 2018-04-18 | Kolben in strukturbauweise |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3612727A1 true EP3612727A1 (de) | 2020-02-26 |
Family
ID=62027989
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18719122.6A Withdrawn EP3612727A1 (de) | 2017-04-19 | 2018-04-18 | Kolben in strukturbauweise |
Country Status (6)
Country | Link |
---|---|
US (1) | US11668263B2 (de) |
EP (1) | EP3612727A1 (de) |
CN (1) | CN110869600A (de) |
BR (1) | BR112019021016A2 (de) |
DE (1) | DE102018109205A1 (de) |
WO (1) | WO2018192959A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018128512A1 (de) | 2017-11-14 | 2019-05-16 | Ks Kolbenschmidt Gmbh | Stahlkolben mit optimiertem Design |
USD897373S1 (en) * | 2018-09-22 | 2020-09-29 | Chaoming Li | Piston |
US12209551B2 (en) | 2019-07-19 | 2025-01-28 | Ks Kolbenschmidt Gmbh | Friction loss-reduced piston for an internal combustion engine |
USD1009938S1 (en) * | 2022-05-24 | 2024-01-02 | Reme, Llc | Elliptical piston for a rotary steerable tool |
US11994085B2 (en) * | 2022-06-28 | 2024-05-28 | GM Global Technology Operations LLC | Piston for use in internal combustion engines and method of making the piston |
DE102022209095A1 (de) | 2022-09-01 | 2024-03-07 | Federal-Mogul Nürnberg GmbH | Kolben für einen Verbrennungsmotor und Verfahren zu dessen Herstellung |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0188108A1 (de) * | 1984-12-19 | 1986-07-23 | Ae Plc | Kolben |
WO2006014741A2 (en) * | 2004-07-21 | 2006-02-09 | Federal-Mogul Corporation | One piece cast steel monobloc piston |
US20130233270A1 (en) * | 2012-03-12 | 2013-09-12 | Federal-Mogul Corporation | Engine piston |
Family Cites Families (67)
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US1492590A (en) * | 1920-11-04 | 1924-05-06 | William K Young | Piston |
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AT141390B (de) | 1932-10-25 | 1935-04-10 | Ernst Dipl Ing Mahle | Leichtmetallkolben für Brennkraftmaschinen. |
DE711937C (de) * | 1938-11-10 | 1941-10-09 | Elektron Co M B H | Geschmiedeter Kolben fuer Brennkraftmaschinen, insbesondere Flugmotorkolben |
DE1103698B (de) | 1959-10-23 | 1961-03-30 | Schmidt Gmbh Karl | Durch Schmieden oder Pressen hergestellter Kolben, vorzugsweise aus einer Aluminium-legierung fuer Brennkraftmaschinen und Kompressoren |
US3173345A (en) * | 1963-02-12 | 1965-03-16 | Thompson Marion Lee | Piston |
DE1284762B (de) * | 1966-09-27 | 1968-12-05 | Mahle Kg | Leichtmetallkolben, insbesondere fuer Brennkraftmaschinen |
FR2238372A5 (de) * | 1973-07-19 | 1975-02-14 | Dampers | |
JPS5924853Y2 (ja) * | 1977-05-11 | 1984-07-23 | ヤンマーディーゼル株式会社 | 内燃機関用ピストン |
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DE3403624A1 (de) * | 1984-02-02 | 1985-08-08 | Kolbenschmidt AG, 7107 Neckarsulm | Gebauter, fluessigkeitsgekuehlter kolben fuer brennkraftmaschinen |
FR2575227B1 (fr) * | 1984-12-20 | 1988-12-23 | Semt | Piston a structure allegee, notamment pour un moteur a combustion interne |
JPH02220733A (ja) * | 1989-02-22 | 1990-09-03 | Aisin Seiki Co Ltd | 内燃機関用ピストンの製造方法 |
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DE10352244A1 (de) * | 2003-11-08 | 2005-06-09 | Mahle Gmbh | Verfahren zur Herstellung eines Kolbens für einen Verbrennungsmotor |
DE102004031513A1 (de) | 2004-06-30 | 2006-01-26 | Ks Kolbenschmidt Gmbh | Verfahren zur Herstellung eines Kühlkanalkolbens für eine Brennkraftmaschine |
DE102005003061B4 (de) * | 2005-01-22 | 2019-11-21 | Andreas Stihl Ag & Co. Kg | Kolben für einen Zweitaktmotor |
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DE102006013905A1 (de) | 2006-03-25 | 2007-09-27 | Mahle International Gmbh | Kolben für einen Verbrennungsmotor |
DE102007018932A1 (de) | 2007-04-21 | 2008-10-23 | Ks Kolbenschmidt Gmbh | Belastungsoptimierter Innenraum eines Kolbens |
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DE102007058789A1 (de) * | 2007-12-06 | 2009-06-10 | Federal-Mogul Nürnberg GmbH | Gusskolben mit Stützrippen und Verfahren zur Herstellung eines solchen Kolbens |
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DE102015201633A1 (de) * | 2015-01-30 | 2016-08-04 | Federal-Mogul Nürnberg GmbH | Kolben für einen Verbrennungsmotor sowie Verfahren zur Herstellung des Kolbens für einen Verbrennungsmotor |
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US10253722B2 (en) * | 2015-05-01 | 2019-04-09 | Ks Kolbenschmidt Us, Inc. | Methods for forging a piston blank |
DE102015209591B4 (de) * | 2015-05-26 | 2021-03-11 | Federal-Mogul Nürnberg GmbH | Kolben für einen Verbrennungsmotor |
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DE102016116984A1 (de) | 2015-09-11 | 2017-03-16 | Ks Kolbenschmidt Gmbh | Kühlung eines Kolbens mittels natriumgefüllter Röhrchen |
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KR20180078251A (ko) | 2015-11-02 | 2018-07-09 | 카에스 콜벤슈미트 게엠베하 | 최적화된 허브 지지체 |
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EP3468735B1 (de) | 2016-06-13 | 2024-05-15 | KS Large Bore Pistons Germany GmbH | Kühlkanalöffnung durch zirkularfräsoperation |
US10151269B2 (en) * | 2016-06-16 | 2018-12-11 | GM Global Technology Operations LLC | Mass efficient piston |
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CN215370056U (zh) * | 2021-06-10 | 2021-12-31 | 山东中创重工科技有限公司 | 一种活塞销座内外支撑筋加强活塞结构 |
-
2018
- 2018-04-18 WO PCT/EP2018/059875 patent/WO2018192959A1/de unknown
- 2018-04-18 EP EP18719122.6A patent/EP3612727A1/de not_active Withdrawn
- 2018-04-18 US US16/605,521 patent/US11668263B2/en active Active
- 2018-04-18 BR BR112019021016A patent/BR112019021016A2/pt not_active IP Right Cessation
- 2018-04-18 DE DE102018109205.9A patent/DE102018109205A1/de not_active Ceased
- 2018-04-18 CN CN201880025842.9A patent/CN110869600A/zh active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0188108A1 (de) * | 1984-12-19 | 1986-07-23 | Ae Plc | Kolben |
WO2006014741A2 (en) * | 2004-07-21 | 2006-02-09 | Federal-Mogul Corporation | One piece cast steel monobloc piston |
US20130233270A1 (en) * | 2012-03-12 | 2013-09-12 | Federal-Mogul Corporation | Engine piston |
Non-Patent Citations (1)
Title |
---|
See also references of WO2018192959A1 * |
Also Published As
Publication number | Publication date |
---|---|
BR112019021016A2 (pt) | 2020-05-05 |
US20200072158A1 (en) | 2020-03-05 |
US11668263B2 (en) | 2023-06-06 |
CN110869600A (zh) | 2020-03-06 |
WO2018192959A1 (de) | 2018-10-25 |
DE102018109205A1 (de) | 2018-10-25 |
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