EP3612727A1 - Piston with a structured design - Google Patents
Piston with a structured designInfo
- 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- Withdrawn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 (en) | 2017-04-19 | 2018-04-18 | Piston with a structured design |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3612727A1 true EP3612727A1 (en) | 2020-02-26 |
Family
ID=62027989
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18719122.6A Withdrawn EP3612727A1 (en) | 2017-04-19 | 2018-04-18 | Piston with a structured design |
Country Status (6)
Country | Link |
---|---|
US (1) | US11668263B2 (en) |
EP (1) | EP3612727A1 (en) |
CN (1) | CN110869600A (en) |
BR (1) | BR112019021016A2 (en) |
DE (1) | DE102018109205A1 (en) |
WO (1) | WO2018192959A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3710686A1 (en) | 2017-11-14 | 2020-09-23 | KS Kolbenschmidt GmbH | Steel piston with optimized design |
USD897373S1 (en) * | 2018-09-22 | 2020-09-29 | Chaoming Li | Piston |
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 (en) | 2022-09-01 | 2024-03-07 | Federal-Mogul Nürnberg GmbH | Piston for an internal combustion engine and method for producing the same |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0188108A1 (en) * | 1984-12-19 | 1986-07-23 | Ae Plc | Pistons |
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1492590A (en) * | 1920-11-04 | 1924-05-06 | William K Young | Piston |
US1926329A (en) | 1930-09-18 | 1933-09-12 | Wright Aeronautical Corp | Piston |
AT141390B (en) | 1932-10-25 | 1935-04-10 | Ernst Dipl Ing Mahle | Light metal pistons for internal combustion engines. |
DE711937C (en) * | 1938-11-10 | 1941-10-09 | Elektron Co M B H | Forged pistons for internal combustion engines, in particular aircraft engine pistons |
DE1103698B (en) | 1959-10-23 | 1961-03-30 | Schmidt Gmbh Karl | Pistons manufactured by forging or pressing, preferably made of an aluminum alloy for internal combustion engines and compressors |
US3173345A (en) * | 1963-02-12 | 1965-03-16 | Thompson Marion Lee | Piston |
DE1284762B (en) * | 1966-09-27 | 1968-12-05 | Mahle Kg | Light metal pistons, especially for internal combustion engines |
FR2238372A5 (en) * | 1973-07-19 | 1975-02-14 | Dampers | |
JPS5924853Y2 (en) * | 1977-05-11 | 1984-07-23 | ヤンマーディーゼル株式会社 | Piston for internal combustion engine |
JPS5954728U (en) * | 1982-10-05 | 1984-04-10 | 株式会社リケン | piston |
DE3403624A1 (en) * | 1984-02-02 | 1985-08-08 | Kolbenschmidt AG, 7107 Neckarsulm | BUILT LIQUID-COOLED PISTON FOR INTERNAL COMBUSTION ENGINES |
FR2575227B1 (en) * | 1984-12-20 | 1988-12-23 | Semt | PISTON WITH LIGHT STRUCTURE, PARTICULARLY FOR AN INTERNAL COMBUSTION ENGINE |
JPH02220733A (en) * | 1989-02-22 | 1990-09-03 | Aisin Seiki Co Ltd | Manufacture of piston for internal combustion engine |
JPH0315649A (en) * | 1989-06-12 | 1991-01-24 | Nissan Motor Co Ltd | Piston of internal combustion engine |
JPH0315650A (en) * | 1989-06-12 | 1991-01-24 | Nissan Motor Co Ltd | Piston of internal combustion engine |
JP3078414B2 (en) * | 1992-12-14 | 2000-08-21 | 株式会社ユニシアジェックス | Internal combustion engine piston |
JPH09329057A (en) * | 1996-06-12 | 1997-12-22 | Daihatsu Motor Co Ltd | Internal combustion engine piston structure |
JP2000008948A (en) * | 1998-04-21 | 2000-01-11 | Nissan Motor Co Ltd | Piston of internal combustion engine |
JPH11303674A (en) * | 1998-04-24 | 1999-11-02 | Unisia Jecs Corp | Piston for internal combustion engine |
JP2000337212A (en) * | 1999-05-26 | 2000-12-05 | Nissan Motor Co Ltd | Piston for internal combustion engine |
US6318243B1 (en) | 1999-08-31 | 2001-11-20 | D. Kent Jones | Two-piece piston assembly |
DE19943945A1 (en) * | 1999-09-14 | 2001-03-22 | Federal Mogul Wiesbaden Gmbh | Piston head |
JP2001289117A (en) * | 2000-04-07 | 2001-10-19 | Unisia Jecs Corp | Piston for internal combustion engine |
JP4173385B2 (en) * | 2003-03-06 | 2008-10-29 | 本田技研工業株式会社 | piston |
DE10352244A1 (en) * | 2003-11-08 | 2005-06-09 | Mahle Gmbh | Method for producing a piston for an internal combustion engine |
DE102004031513A1 (en) | 2004-06-30 | 2006-01-26 | Ks Kolbenschmidt Gmbh | Method for producing a cooling channel piston for an internal combustion engine |
DE102005003061B4 (en) * | 2005-01-22 | 2019-11-21 | Andreas Stihl Ag & Co. Kg | Piston for a two-stroke engine |
JP2009506259A (en) | 2005-08-29 | 2009-02-12 | カーエス コルベンシュミット ゲゼルシャフト ミット ベシュレンクテル ハフツング | Lightweight piston |
DE102006013905A1 (en) * | 2006-03-25 | 2007-09-27 | Mahle International Gmbh | Piston for an internal combustion engine comprises reinforcing ribs running parallel to the piston middle axis on the inner wall of the piston shaft |
DE102007018932A1 (en) | 2007-04-21 | 2008-10-23 | Ks Kolbenschmidt Gmbh | Load-optimized interior of a piston |
DE102008018850A1 (en) * | 2007-11-30 | 2009-06-04 | Andreas Borst | Piston and process for its production |
DE102007058789A1 (en) * | 2007-12-06 | 2009-06-10 | Federal-Mogul Nürnberg GmbH | Casting piston with support ribs and method for producing such a piston |
US8079341B2 (en) * | 2008-01-29 | 2011-12-20 | BRP-Powertrain GmbH & Co. KG. | Piston for an internal combustion engine |
EP2417342B1 (en) * | 2009-04-10 | 2019-05-15 | Tenneco Inc. | Piston with crown cooling jet |
US20110073061A1 (en) * | 2009-09-28 | 2011-03-31 | Jeungsuck Chae | Pistons with a rough surface |
US8776670B2 (en) * | 2010-02-17 | 2014-07-15 | Mahle International Gmbh | Piston assembly |
DE102010053925A1 (en) * | 2010-12-09 | 2012-06-14 | Mahle International Gmbh | Piston for an internal combustion engine and method for its production |
JP5543908B2 (en) * | 2010-12-24 | 2014-07-09 | 本田金属技術株式会社 | Piston for engine |
DE102011013141A1 (en) * | 2011-03-04 | 2012-09-06 | Mahle International Gmbh | Method for producing a piston for an internal combustion engine |
DE102011007285A1 (en) * | 2011-04-13 | 2012-10-18 | Mahle International Gmbh | Piston for internal combustion engine, comprises piston upper portion and piston lower portion, annular cooling duct for cooling piston, during operation of internal combustion engine, and inlet opening arranged at piston lower portion |
US9046053B2 (en) * | 2011-06-29 | 2015-06-02 | Federal-Mogul Corporation | Piston with an undercrown support feature |
DE102011106379A1 (en) * | 2011-07-04 | 2013-01-10 | Mahle International Gmbh | Piston for an internal combustion engine |
DE102011085448A1 (en) * | 2011-10-28 | 2013-05-02 | Ks Kolbenschmidt Gmbh | Piston and connecting rod for an internal combustion engine |
CN202348466U (en) * | 2011-11-02 | 2012-07-25 | 山东滨州渤海活塞股份有限公司 | Spin formed forged steel one-piece piston with inner cooling oil cavity |
CN104603436A (en) | 2012-06-27 | 2015-05-06 | Ks科尔本施密特有限公司 | Particular arrangement of a cooling duct connecting bore of a cooling duct |
BR112015006712A2 (en) * | 2012-09-27 | 2017-07-04 | Federal Mogul Corp | piston with reduced compression height and piston assembly with same construction method |
EP2971717B1 (en) * | 2013-03-13 | 2017-05-10 | Federal-Mogul Corporation | Piston and method of construction thereof |
WO2014140287A1 (en) | 2013-03-15 | 2014-09-18 | Ks Kolbenschmidt Gmbh | Two-part steel piston, joining process |
DE102013214738A1 (en) * | 2013-07-29 | 2015-01-29 | Federal-Mogul Nürnberg GmbH | Lightweight construction of a diesel piston |
WO2015124748A1 (en) | 2014-02-21 | 2015-08-27 | Ks Kolbenschmidt Gmbh | Piston without a closed cooling chamber for internal combustion engines with at least one cooling oil nozzle per cylinder and method for cooling said piston |
EP3212917A1 (en) * | 2014-10-30 | 2017-09-06 | Federal-Mogul LLC | Piston |
DE102015201633A1 (en) * | 2015-01-30 | 2016-08-04 | Federal-Mogul Nürnberg GmbH | Piston for an internal combustion engine and method for producing the piston for an internal combustion engine |
BR112017016319A2 (en) * | 2015-01-30 | 2018-03-27 | Fed Mogul Llc | sealed coolant piston and method of construction |
US10584659B2 (en) * | 2015-03-23 | 2020-03-10 | Tenneco Inc | Robust, lightweight, low compression height piston and method of construction thereof |
US10253722B2 (en) * | 2015-05-01 | 2019-04-09 | Ks Kolbenschmidt Us, Inc. | Methods for forging a piston blank |
DE102015209591B4 (en) * | 2015-05-26 | 2021-03-11 | Federal-Mogul Nürnberg GmbH | Pistons for an internal combustion engine |
EP3334545A1 (en) | 2015-08-11 | 2018-06-20 | KS Kolbenschmidt GmbH | Method for producing a monoblock piston, and monoblock piston |
KR20170030322A (en) * | 2015-09-09 | 2017-03-17 | 동양피스톤 주식회사 | Piston for internal combustion engine |
EP3347585B1 (en) | 2015-09-11 | 2021-04-07 | KS Kolbenschmidt GmbH | Cooling of a piston by means of sodium-filled tubes |
MX2018002870A (en) | 2015-10-01 | 2018-06-18 | Ks Kolbenschmidt Gmbh | Two-part piston having an open cooling channel. |
US10871125B2 (en) | 2015-11-02 | 2020-12-22 | Ks Kolbenschmidt Gmbh | Optimized hub support |
JP6256453B2 (en) * | 2015-11-17 | 2018-01-10 | マツダ株式会社 | Engine piston structure |
EP3377244A1 (en) | 2015-11-19 | 2018-09-26 | KS Kolbenschmidt GmbH | Cast inflow and outflow openings for cast-steel and cast-iron pistons |
MX2018014961A (en) | 2016-06-13 | 2019-04-25 | Ks Kolbenschmidt Gmbh | Cooling channel opening by means of circular milling operation. |
US10151269B2 (en) * | 2016-06-16 | 2018-12-11 | GM Global Technology Operations LLC | Mass efficient piston |
CN206409317U (en) * | 2017-01-18 | 2017-08-15 | 广东嘉纳仕科技实业有限公司 | A kind of piston of improved structure |
CN215370056U (en) * | 2021-06-10 | 2021-12-31 | 山东中创重工科技有限公司 | Piston pin base inner and outer support rib reinforced piston structure |
-
2018
- 2018-04-18 WO PCT/EP2018/059875 patent/WO2018192959A1/en unknown
- 2018-04-18 CN CN201880025842.9A patent/CN110869600A/en active Pending
- 2018-04-18 BR BR112019021016A patent/BR112019021016A2/en not_active IP Right Cessation
- 2018-04-18 EP EP18719122.6A patent/EP3612727A1/en not_active Withdrawn
- 2018-04-18 US US16/605,521 patent/US11668263B2/en active Active
- 2018-04-18 DE DE102018109205.9A patent/DE102018109205A1/en not_active Ceased
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0188108A1 (en) * | 1984-12-19 | 1986-07-23 | Ae Plc | Pistons |
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 |
---|---|
DE102018109205A1 (en) | 2018-10-25 |
BR112019021016A2 (en) | 2020-05-05 |
US20200072158A1 (en) | 2020-03-05 |
US11668263B2 (en) | 2023-06-06 |
WO2018192959A1 (en) | 2018-10-25 |
CN110869600A (en) | 2020-03-06 |
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