EP1278951A1 - Moteur a combustion interne dote d'un piston integre - Google Patents

Moteur a combustion interne dote d'un piston integre

Info

Publication number
EP1278951A1
EP1278951A1 EP01940141A EP01940141A EP1278951A1 EP 1278951 A1 EP1278951 A1 EP 1278951A1 EP 01940141 A EP01940141 A EP 01940141A EP 01940141 A EP01940141 A EP 01940141A EP 1278951 A1 EP1278951 A1 EP 1278951A1
Authority
EP
European Patent Office
Prior art keywords
piston
built
combustion engine
internal combustion
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.)
Granted
Application number
EP01940141A
Other languages
German (de)
English (en)
Other versions
EP1278951B1 (fr
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/fr
Application granted granted Critical
Publication of EP1278951B1 publication Critical patent/EP1278951B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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 
    • 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-in piston consisting of a piston crown made of steel and a piston lower part, which are connected to one another via a single screw arranged in the central axis or near the central axis of the piston, and with a central cooling space between piston crown and piston lower part with an oil-bearing connecting rod, which is connected to the lower piston part by a piston pin.
  • a piston for a generic internal combustion engine is known from DE 4131275.
  • the cooling oil is introduced via the piston pin into the hubs and from there through vertical bores upwards into an outer cooling channel, flows radially inwards into a central cooling chamber and over a drain into the inner shape of the piston.
  • the deflection of the oil in the piston pin and the long bores result in a relatively high flow resistance.
  • 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 simplifying the bolt or optimizing its strength through the non-integrated oil guide.
  • Fig. 1 shows a first embodiment in cross section
  • Fig. 2 shows a second embodiment in cross section.
  • a built-in piston 2 is displaceably arranged in an internal combustion engine 1 - indicated by a cylinder wall of an engine housing.
  • the built piston 2 consists of a piston crown 3 and a lower piston part 4, which are connected to one another via a screw 5 arranged in the longitudinal axis of the piston.
  • the piston 2 is connected via a piston pin 9 to a connecting rod 10 carrying cooling oil.
  • a slide shoe 12 is arranged on the screw head so as to be slidable under spring preload.
  • the sliding shoe 12 has a mating surface before 13, which cooperates with a machined surface 14 on the connecting rod 10, whereby cooling oil losses between the connecting rod 10 and the sliding block 12 are largely prevented.
  • a locking ring 15 in the screw head 11 serves as a transport lock against loss of the sliding block 12.
  • the screw head 11 is supported with 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 bores 19 to the central cooling space 7.
  • the spring 23 is supported against an ES and molded on the screw head and presses the slider 12 against the connecting rod 10.
  • 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 slide shoe 12 through radial bores 22 into the space between the spacer 12 and screw 5 and from there upwards into the central cooling space 7.
  • the slide shoe 12 is mounted in the guide part 21 so as to be displaceable against the force of a spring 23.
  • the spring 23 is supported against a collar arranged on the spacer.
  • the guide part 21 is fixed between the spacer 20 and the collar 17 when the screw 5 is tightened.

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)
  • Lubrication Of Internal Combustion Engines (AREA)

Abstract

S'agissant d'un piston intégré comprenant une vis centrale et une chambre de refroidissement centrale, l'invention vise à réduire la résistance à l'écoulement dans la zone d'alimentation de l'huile. Pour cela, un moyen situé dans la zone de la tête de la vis centrale permet de recueillir l'huile de la bielle dans la chambre de refroidissement centrale.
EP01940141A 2000-05-05 2001-04-07 Moteur a combustion interne dote d'un piston integre Expired - Lifetime EP1278951B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10022035A DE10022035A1 (de) 2000-05-05 2000-05-05 Verbrennungsmotor mit einem gebauten Kolben
DE10022035 2000-05-05
PCT/DE2001/001404 WO2001086133A1 (fr) 2000-05-05 2001-04-07 Moteur a combustion interne dote d'un piston integre

Publications (2)

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

Family

ID=7640965

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01940141A Expired - Lifetime EP1278951B1 (fr) 2000-05-05 2001-04-07 Moteur a combustion interne dote d'un piston integre

Country Status (7)

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

Families Citing this family (17)

* 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
JP4838858B2 (ja) * 2005-12-17 2011-12-14 マーレ インターナショナル ゲゼルシャフト ミット ベシュレンクテル ハフツング 内燃機関用の２部分から成るピストン
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
US10047694B2 (en) 2013-06-14 2018-08-14 Ks Kolbenschmidt Gmbh Slide shoe for a piston for use in internal combustion engines
DE102016202643A1 (de) * 2016-02-22 2017-08-24 Mahle International Gmbh Kolben einer Brennkraftmaschine
EP3452712A1 (fr) 2016-05-04 2019-03-13 KS Kolbenschmidt GmbH Piston
DE102018203417A1 (de) * 2018-03-07 2019-09-12 Mahle Lnternational Gmbh Kolbenanordnung einer Brennkraftmaschine
SK288973B6 (sk) * 2020-08-13 2022-06-30 Up-Steel, S.R.O. Radiálny piestový rotačný stroj
KR20230062926A (ko) 2021-11-01 2023-05-09 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 (fr) 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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0186133A1 *

Also Published As

Publication number Publication date
BR0110520B1 (pt) 2010-02-23
JP2003532831A (ja) 2003-11-05
DE10022035A1 (de) 2001-11-08
KR20020093129A (ko) 2002-12-12
EP1278951B1 (fr) 2006-03-01
JP4490025B2 (ja) 2010-06-23
US20030154855A1 (en) 2003-08-21
DE50109078D1 (de) 2006-04-27
US6829977B2 (en) 2004-12-14
WO2001086133A1 (fr) 2001-11-15
BR0110520A (pt) 2003-04-08
KR100754536B1 (ko) 2007-09-04

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