EP1278951B1 - Verbrennungsmotor mit einem gebauten kolben - Google Patents

Verbrennungsmotor mit einem gebauten kolben Download PDF

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Publication number
EP1278951B1
EP1278951B1 EP01940141A EP01940141A EP1278951B1 EP 1278951 B1 EP1278951 B1 EP 1278951B1 EP 01940141 A EP01940141 A EP 01940141A EP 01940141 A EP01940141 A EP 01940141A EP 1278951 B1 EP1278951 B1 EP 1278951B1
Authority
EP
European Patent Office
Prior art keywords
piston
combustion engine
screw
sliding block
oil
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 - Lifetime
Application number
EP01940141A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1278951A1 (de
Inventor
Dieter Messmer
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.)
Mahle GmbH
Original Assignee
Mahle 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 Mahle GmbH filed Critical Mahle GmbH
Publication of EP1278951A1 publication Critical patent/EP1278951A1/de
Application granted granted Critical
Publication of EP1278951B1 publication Critical patent/EP1278951B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 
    • 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
    • F02F3/0023—Multi-part pistons the parts being bolted or screwed together

Definitions

  • the invention relates to an internal combustion engine with a built-piston consisting of a piston crown made of steel and a piston lower part, which are connected to each other via a single, arranged in the central axis or near the central axis of the piston screw, and with a central cooling space between the piston crown and piston lower part, further with an oil-carrying connecting rod, which is connected by a piston pin with the piston lower part.
  • a piston for a generic internal combustion engine is known from DE 4131275.
  • the cooling oil is introduced via the piston pin in the hubs and from there by vertically extending holes upwards in an outer cooling channel flows radially inward into a central cooling chamber and over a drain in the inner shape of the piston.
  • the invention is therefore concerned with the problem of optimizing the flow of the cooling oil through the piston in generic internal combustion engines and to simplify the bolt by the non-integrated oil guide and to optimize strength.
  • a built piston 2 is slidably disposed in an internal combustion engine 1 - indicated by a cylinder wall of a motor housing - .
  • the built piston 2 consists of a piston head 3 and a piston lower part 4, which are connected to each other via a screw 5 arranged in the piston longitudinal axis.
  • a cooling channel 6 and a central cooling chamber 7, are each bounded by the piston head and piston lower part and which are connected to each other via overflow 8.
  • the piston 2 is connected via a piston pin 9 with a connecting rod 10 leading to cooling oil.
  • a sliding shoe 12 is arranged in a spring-biased manner on the screw head.
  • the shoe 12 has a fitting surface 13, which cooperates with a machined surface 14 on the connecting rod 10, whereby cooling oil losses between the connecting rod 10 and shoe 12 are largely prevented.
  • a locking ring 15 in the screw head 11 serves as a transport lock against loss of the shoe 12.
  • the screw head 11 is supported by a contact surface 16 against a collar 17 in the lower part.
  • the screw 5 has a bore 18 along the longitudinal axis and radially extending overflow holes 19 to the central cooling chamber 7.
  • the spring 23 is supported against an integrally formed on the screw head collar and pushes the slider 12 against the connecting rod 10th
  • FIG. 2 shows deviations from FIG. 1 with regard to the guidance of the cooling oil and the introduction of the screwing forces into the collar 17.
  • the screwing forces are introduced into the collar 17 via a spacer 20 and a guide part 21.
  • the cooling oil flows from the shoe 12 through radial holes 22 in the space between spacer 12 and screw 5 and from there up into the central cooling chamber 7.
  • the shoe 12 is slidably mounted in the guide member 21 against the force of a spring 23.
  • the spring 23 is supported against a collar arranged on the spacer.
  • the guide member 21 is fixed when tightening the screw 5 between the spacer 20 and the collar 17.

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)
EP01940141A 2000-05-05 2001-04-07 Verbrennungsmotor mit einem gebauten kolben Expired - Lifetime EP1278951B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10022035 2000-05-05
DE10022035A DE10022035A1 (de) 2000-05-05 2000-05-05 Verbrennungsmotor mit einem gebauten Kolben
PCT/DE2001/001404 WO2001086133A1 (de) 2000-05-05 2001-04-07 Verbrennungsmotor mit einem gebauten kolben

Publications (2)

Publication Number Publication Date
EP1278951A1 EP1278951A1 (de) 2003-01-29
EP1278951B1 true EP1278951B1 (de) 2006-03-01

Family

ID=7640965

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01940141A Expired - Lifetime EP1278951B1 (de) 2000-05-05 2001-04-07 Verbrennungsmotor mit einem gebauten kolben

Country Status (7)

Country Link
US (1) US6829977B2 (pt)
EP (1) EP1278951B1 (pt)
JP (1) JP4490025B2 (pt)
KR (1) KR100754536B1 (pt)
BR (1) BR0110520B1 (pt)
DE (2) DE10022035A1 (pt)
WO (1) WO2001086133A1 (pt)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100488565B1 (ko) * 2002-10-22 2005-05-11 현대자동차주식회사 피스톤의 윤활 및 냉각구조
DE102004027974A1 (de) * 2004-06-08 2005-12-29 Mahle Gmbh Gebauter Kolben und Verfahren zur Vermeidung von Beschädigungen in Kontakt zueinander stehender Flächen des Oberteiles und des Unterteiles des Kolbens
DE102005041409A1 (de) * 2005-09-01 2007-03-08 Mahle International Gmbh Zweiteiliger Kolben für einen Verbrennungsmotor
DE102005042003A1 (de) * 2005-09-05 2007-03-08 Mahle International Gmbh Gebauter, flüssigkeitsgekühlter Kolben
WO2007068222A1 (de) * 2005-12-17 2007-06-21 Mahle International Gmbh Zweiteiliger kolben für einen verbrennungsmotor
JP4748078B2 (ja) * 2007-02-16 2011-08-17 株式会社豊田中央研究所 内燃機関
JP4624373B2 (ja) * 2007-03-20 2011-02-02 三井造船株式会社 内燃機関のピストン冷却金物
US20080295683A1 (en) * 2007-05-30 2008-12-04 Mahle Gmbh Focal oiling for a piston assembly
DE102011100470A1 (de) * 2011-05-04 2012-11-08 Ks Kolbenschmidt Gmbh Verfahren zur Herstellung eines Kühlkanalkolbens und zugehöriger Kolben
DE102012207951B4 (de) * 2012-05-11 2022-09-22 Man Energy Solutions Se Kolben einer Brennkraftmaschine
DE102012208090B4 (de) * 2012-05-15 2022-03-24 Man Energy Solutions Se Kolben einer Brennkraftmaschine
DE102014211357A1 (de) 2013-06-14 2014-12-18 Ks Kolbenschmidt Gmbh Gleitschuh für einen Kolben zum Einsatz in Brennkraftmaschinen
DE102016202643A1 (de) * 2016-02-22 2017-08-24 Mahle International Gmbh Kolben einer Brennkraftmaschine
EP3452712A1 (de) 2016-05-04 2019-03-13 KS Kolbenschmidt GmbH Kolben
DE102018203417A1 (de) * 2018-03-07 2019-09-12 Mahle Lnternational Gmbh Kolbenanordnung einer Brennkraftmaschine
CN110617156A (zh) * 2019-09-25 2019-12-27 滨州东海龙活塞有限公司 一种双冷却油腔的活塞及其组装方法
SK288973B6 (sk) * 2020-08-13 2022-06-30 Up-Steel, S.R.O. Radiálny piestový rotačný stroj
KR102703550B1 (ko) 2021-11-01 2024-09-05 에이치디현대건설기계 주식회사 붐 다운 동작 시 에너지 저감을 위한 건설기계

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1212517A (en) * 1915-06-01 1917-01-16 Gen Electric Engine-piston.
DE547233C (de) * 1931-03-20 1932-04-02 Maschf Augsburg Nuernberg Ag Geteilter Kolben fuer doppeltwirkende Brennkraftmaschinen
DE601815C (de) * 1933-03-26 1934-08-24 Maschf Augsburg Nuernberg Ag Gekuehlter Tauchkolben fuer Brennkraftmaschinen
GB498455A (en) * 1938-02-16 1939-01-09 Werkspoor Nv Improvements in and relating to single-acting crosshead combustion engines
GB586036A (en) 1944-06-07 1947-03-05 Specialloid Ltd Improvements in and relating to pistons
US2442408A (en) * 1944-09-15 1948-06-01 Specialloid Ltd Piston cooling construction
DE1253514B (de) 1962-02-15 1967-11-02 Maschf Augsburg Nuernberg Ag Mehrteiliger, fluessigkeitsgekuehlter Kolben fuer Brennkraftmaschinen
FR1429327A (fr) * 1964-12-29 1966-02-25 Hispano Suiza Sa Perfectionnements apportés aux pistons pour moteurs à combustion interne
FR1524454A (fr) 1967-04-19 1968-05-10 Moteur Moderne Le Piston refroidi de moteur diesel
US3465651A (en) 1968-02-13 1969-09-09 Alco Products Inc Composite pistons
DD99418A1 (pt) 1972-10-12 1973-08-13
DE7800918U1 (de) * 1978-01-13 1982-12-16 Mtu Motoren- Und Turbinen-Union Friedrichshafen Gmbh, 7990 Friedrichshafen Kolben fuer eine brennkraftmaschine
DE3346965A1 (de) * 1983-12-24 1985-07-04 Mahle Gmbh, 7000 Stuttgart Tauchkolben mit veraenderlicher kompressionshoehe fuer verbrennungsmotoren
DE3518721C3 (de) 1985-05-24 1997-09-04 Man B & W Diesel Ag Ölgekühlter, mehrteiliger Tauchkolben einer Brennkraftmaschine
JPS61286555A (ja) 1985-06-14 1986-12-17 Mitsubishi Heavy Ind Ltd 内圧バランス形ピストン
DE4018252A1 (de) * 1990-06-07 1991-12-12 Man B & W Diesel Ag Oelgekuehlter kolben
DE4131275C2 (de) * 1991-09-20 1998-04-09 Mahle Gmbh Gebauter flüssigkeitsgekühlter Kolben
DE19910582A1 (de) * 1999-03-10 2000-09-28 Mahle Gmbh Gebauter Kolben

Also Published As

Publication number Publication date
KR100754536B1 (ko) 2007-09-04
BR0110520A (pt) 2003-04-08
JP2003532831A (ja) 2003-11-05
US20030154855A1 (en) 2003-08-21
EP1278951A1 (de) 2003-01-29
DE50109078D1 (de) 2006-04-27
KR20020093129A (ko) 2002-12-12
BR0110520B1 (pt) 2010-02-23
US6829977B2 (en) 2004-12-14
JP4490025B2 (ja) 2010-06-23
DE10022035A1 (de) 2001-11-08
WO2001086133A1 (de) 2001-11-15

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