EP3545182A1 - Piston en acier pour moteur à combustion interne - Google Patents

Piston en acier pour moteur à combustion interne

Info

Publication number
EP3545182A1
EP3545182A1 EP17758471.1A EP17758471A EP3545182A1 EP 3545182 A1 EP3545182 A1 EP 3545182A1 EP 17758471 A EP17758471 A EP 17758471A EP 3545182 A1 EP3545182 A1 EP 3545182A1
Authority
EP
European Patent Office
Prior art keywords
piston
shaft surface
shaft
internal combustion
combustion engine
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.)
Granted
Application number
EP17758471.1A
Other languages
German (de)
English (en)
Other versions
EP3545182B1 (fr
Inventor
Ralf Meske
Lukas Merz
Michael Kraemer
Christoffer SCHMOLL
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Federal Mogul Nuernberg GmbH
Original Assignee
Federal Mogul Nuernberg GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Federal Mogul Nuernberg GmbH filed Critical Federal Mogul Nuernberg GmbH
Publication of EP3545182A1 publication Critical patent/EP3545182A1/fr
Application granted granted Critical
Publication of EP3545182B1 publication Critical patent/EP3545182B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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 
    • F02F3/16—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
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F3/00—Pistons 
    • F02F3/0015—Multi-part 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 
    • F02F3/0084—Pistons  the pistons being constructed from specific materials
    • 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

Definitions

  • the width of the shaft surfaces usually results from the installation space conditions, in the interior of the piston through the small connecting rod eye and the ⁇ l moussedüsenposition
  • Shaft surface results from the position of the oil spray nozzle, wherein on the side with oil spray nozzle preferably the unchanged, wider shaft surface is provided and the
  • the steel piston according to the invention is used in heavy-duty diesel engines. extensive
  • adekanalauslas s is provided, which is preferably arranged on the side of the smaller shaft surface. Regardless of thedekanalauslass
  • Piston-headed end is wider than at the end
  • shank surfaces are characterized by so-called
  • connection of at least one shaft surface can be carried out obliquely, which is advantageous for the rigidity of the connection.
  • the steel piston according to the invention consists of at least two components joined by friction welding.
  • the piston base can be made by forging or casting. In the case of the forging process, a draft angle is to be provided. This results in an embodiment of the shank surfaces in which the shank surfaces are each wider at their end directed towards the piston head end than at the opposite end.
  • the invention is based on a in the
  • Fig. 1 is a bottom view of the piston according to the invention.
  • Fig. 2 is a side view of the piston according to the invention.
  • a shaft surface 12 which is provided in the example shown on the counter-pressure side, and a shaft surface 14 on the pressure side through
  • the shaft surface 12 on the counter-pressure side is significantly smaller, in particular narrower, as can be seen in addition in the side view of FIG. However, it can also be the shaft surface 14 on the Pressure side to be made smaller, if the position of the oil spray nozzle is located on the counter-pressure side.
  • Cooling duct inlet 24 is provided laterally.
  • the skirt wall has a convexity 22 on its inside at the lower end on this side. However, it preferably extends over the entire "height" of the skirt wall in the direction of the piston axis.
  • the shaft wall is substantially thickened in the middle or bulged to the inside.
  • the convexity extends over approximately one third of the width of the shaft surface 14, for example, and, like the two transitions to the wall thickness of the shaft surface 14, is rounded.

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

L'invention concerne un piston en acier (10) pour un moteur à combustion interne, le piston comprenant un conduit de refroidissement et des surfaces de tige (12, 14) au moyen desquelles le piston (10), une fois monté sur une face de pression et de contre-pression, s'applique contre un alésage de cylindre ou une chemise de cylindre, une surface de tige (12) présentant une largeur inférieure de 25-50% à la largeur de l'autre surface de tige (14).
EP17758471.1A 2016-11-28 2017-08-17 Piston en acier pour moteur à combustion interne Active EP3545182B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016223530.3A DE102016223530A1 (de) 2016-11-28 2016-11-28 Stahlkolben für einen Verbrennungsmotor
PCT/EP2017/070830 WO2018095601A1 (fr) 2016-11-28 2017-08-17 Piston en acier pour moteur à combustion interne

Publications (2)

Publication Number Publication Date
EP3545182A1 true EP3545182A1 (fr) 2019-10-02
EP3545182B1 EP3545182B1 (fr) 2020-11-25

Family

ID=59738312

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17758471.1A Active EP3545182B1 (fr) 2016-11-28 2017-08-17 Piston en acier pour moteur à combustion interne

Country Status (7)

Country Link
US (1) US11131269B2 (fr)
EP (1) EP3545182B1 (fr)
KR (1) KR102384112B1 (fr)
CN (1) CN109996948B (fr)
DE (1) DE102016223530A1 (fr)
MX (1) MX2019006116A (fr)
WO (1) WO2018095601A1 (fr)

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR822409A (fr) * 1936-09-05 1937-12-30 Perfectionnements au moulage des pistons, à ces pistons et nouveaux pistons obtenus
JPS63112666U (fr) * 1987-01-14 1988-07-20
JP2549460Y2 (ja) * 1990-01-10 1997-09-30 トヨタ自動車株式会社 内燃機関用ピストン
JPH03112551U (fr) * 1990-03-02 1991-11-18
KR970062277A (ko) * 1996-02-29 1997-09-12 도오다 고오이찌로 내연 기관용 피스톤
JPH1136978A (ja) 1997-07-16 1999-02-09 Unisia Jecs Corp 内燃機関用ピストン
JPH11303674A (ja) * 1998-04-24 1999-11-02 Unisia Jecs Corp 内燃機関のピストン
JP2000303905A (ja) * 1999-04-16 2000-10-31 Toyota Motor Corp ピストンの冷却構造
US6244161B1 (en) * 1999-10-07 2001-06-12 Cummins Engine Company, Inc. High temperature-resistant material for articulated pistons
US6588320B2 (en) 1999-12-30 2003-07-08 Federal-Mogul World Wide, Inc. Piston having uncoupled skirt
GB2367602B (en) 2000-10-07 2004-10-27 Federal Mogul Bradford Ltd Piston for internal combustion engine
JP2002317691A (ja) * 2001-04-19 2002-10-31 Unisia Jecs Corp 内燃機関のピストン
US6526871B1 (en) * 2001-08-24 2003-03-04 Federal-Mogul World Wide, Inc. Monobloc piston for diesel engines
DE10230746B4 (de) * 2002-07-09 2015-10-01 Ks Kolbenschmidt Gmbh Kolben
US7895937B2 (en) * 2006-11-08 2011-03-01 Federal-Mogul World Wide, Inc. Piston having twisted skirt panels
JP5063634B2 (ja) 2009-03-12 2012-10-31 日立オートモティブシステムズ株式会社 内燃機関のピストン
US8807109B2 (en) 2009-11-06 2014-08-19 Federal-Mogul Corporation Steel piston with cooling gallery and method of construction thereof
US9970384B2 (en) 2009-11-06 2018-05-15 Federal-Mogul Llc Steel piston with cooling gallery and method of construction thereof
JP5543908B2 (ja) * 2010-12-24 2014-07-09 本田金属技術株式会社 エンジン用のピストン
DE102011080822A1 (de) * 2011-08-11 2013-02-14 Mahle International Gmbh Kolben
DE112012005520B4 (de) * 2011-12-28 2022-11-17 Honda Motor Co., Ltd. Kolben für Verbrennungsmotor
DE102012203570A1 (de) * 2012-03-07 2013-09-12 Mahle International Gmbh Gegossener Leichtmetallkolben, insbesondere ein Aluminiumkolben
CN202970934U (zh) 2012-12-07 2013-06-05 山东滨州渤海活塞股份有限公司 新型汽油机轻量化内冷镶圈活塞
DE102013013962A1 (de) * 2013-08-23 2015-02-26 Mahle International Gmbh Baueinheit aus einem Kolben und einer Anspritzdüse für einen Verbrennungsmotor

Also Published As

Publication number Publication date
MX2019006116A (es) 2019-08-01
KR20190086501A (ko) 2019-07-22
CN109996948B (zh) 2022-06-17
US11131269B2 (en) 2021-09-28
EP3545182B1 (fr) 2020-11-25
DE102016223530A1 (de) 2018-05-30
US20210115874A1 (en) 2021-04-22
KR102384112B1 (ko) 2022-04-06
WO2018095601A1 (fr) 2018-05-31
CN109996948A (zh) 2019-07-09

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