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WO2007031067A1 - Piston pour un moteur a combustion interne - Google Patents

Piston pour un moteur a combustion interne Download PDF

Info

Publication number
WO2007031067A1
WO2007031067A1 PCT/DE2006/001610 DE2006001610W WO2007031067A1 WO 2007031067 A1 WO2007031067 A1 WO 2007031067A1 DE 2006001610 W DE2006001610 W DE 2006001610W WO 2007031067 A1 WO2007031067 A1 WO 2007031067A1
Authority
WO
WIPO (PCT)
Prior art keywords
piston
ring element
combustion engine
internal combustion
ring
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.)
Ceased
Application number
PCT/DE2006/001610
Other languages
German (de)
English (en)
Inventor
Hans-Peter Wieland
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 International GmbH
Original Assignee
Mahle International 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 International GmbH filed Critical Mahle International GmbH
Publication of WO2007031067A1 publication Critical patent/WO2007031067A1/fr
Anticipated expiration legal-status Critical
Ceased 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 
    • F02F3/0015—Multi-part pistons
    • F02F3/0023—Multi-part pistons the parts being bolted or screwed together
    • 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

Definitions

  • the invention relates to a piston for an internal combustion engine according to the preamble of claim.
  • a piston for an internal combustion engine which consists of a piston main body and of a ring element which forms the radially outer region of the piston crown, the top land and the ring portion of the piston.
  • the ring element is fastened exclusively via a thread arranged on the radially outer end face of the piston crown, while the piston bottom facing away from the end face of the ring member is supported on an elastically resilient projection which is attached to the piston body.
  • the figure shows a piston 1 for an internal combustion engine in a sectional view, which consists of two halves, of which the left half of a section of the piston. 1 - -
  • the piston 1 consists of a piston body 4, to which a piston element side, first screw 5 and a second screw 19 in the region of the surface 25 of a piston crown side integrally formed on the piston body 4, circumferential projection 15, a ring member 6 is connected to the top land 7 and the ring part 8 of the piston 1 forms.
  • the piston body 4 and the ring member 6 are made of steel.
  • the projection 15 is plate spring-like and tapered in the direction of the piston body 4.
  • the second screw 19 consists of an external thread 22, which is located on the radial outer side of an annular, attached to the piston bottom end of the projection 15 Anformung 23, and an internal thread 24, which is located near the lower end face 21 of the ring member 6 on the Inside is located.
  • the piston main body 4 is formed in one piece and has a combustion bowl 10 in the region of the piston head 9.
  • a respective hub support 11, 11 ' two pin bosses 12, 12', each with a hub bore 3, 3 ', are formed on the piston head 9 whose end faces 16 are set back relative to the ring element 6 in the direction of the piston longitudinal axis 17.
  • the pin bosses 12, 12 ' are connected to each other via shaft elements 13, 13'.
  • the piston body 4 recesses 18 which are arranged in the present embodiment in the region of the shaft elements 13, 13' of the piston body 4 partially circulating.
  • a carrier of the ring member 6 and a piston body 4 may be used, in which the end faces 16 of the pin bosses 12, 12 'are arranged not reset relative to the ring section 8.
  • the recess 18 over the entire circumference of the piston between the shaft elements 13, 13 'and the ring member 6 and partly between the pin bosses 12, 12' and the ring member 6 is arranged circumferentially.
  • the piston body 4 forms in the region of the piston head 9 together with the ring member 6 an annular cooling channel 14, which is partly incorporated in the piston body 4 and partly in the ring member 6. In the direction of pin boss 12, the cooling channel 14 is covered by the projection 15 of the piston main body 4.
  • the piston 1 may have a plurality of drain holes 20 for cooling oil.
  • annular spring element may be arranged, whose function is to produce a bias voltage which improves the strength of the screw connection.

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 (1) pour un moteur à combustion interne, lequel piston est constitué d'un corps de base de piston (4) et d'un élément annulaire (6) relié au corps de base de piston (4) par un premier vissage (5) côté tête de piston et, afin d'améliorer la résistance de la liaison entre ce corps de base de piston (4) et cet élément annulaire (6), par un second vissage (19) situé dans la zone de l'élément annulaire (6) opposée à la tête de piston. L'élément annulaire (6) forme, avec le corps de base de piston (4), un canal de refroidissement annulaire (14).
PCT/DE2006/001610 2005-09-17 2006-09-14 Piston pour un moteur a combustion interne Ceased WO2007031067A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200510044597 DE102005044597A1 (de) 2005-09-17 2005-09-17 Kolben für einen Verbrennungsmotor
DE102005044597.7 2005-09-17

Publications (1)

Publication Number Publication Date
WO2007031067A1 true WO2007031067A1 (fr) 2007-03-22

Family

ID=37649428

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2006/001610 Ceased WO2007031067A1 (fr) 2005-09-17 2006-09-14 Piston pour un moteur a combustion interne

Country Status (2)

Country Link
DE (1) DE102005044597A1 (fr)
WO (1) WO2007031067A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008151620A1 (fr) 2007-06-13 2008-12-18 Mahle International Gmbh Piston en deux parties pour un moteur à combustion interne
WO2009016089A1 (fr) * 2007-08-02 2009-02-05 Mahle International Gmbh Piston assemblé

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008038325A1 (de) 2007-12-20 2009-06-25 Mahle International Gmbh Verfahren zum Befestigen eines Ringelementes auf einem Kolben für einen Verbrennungsmotor
DE102012014193A1 (de) * 2012-07-18 2014-05-15 Mahle International Gmbh Kolben für einen Verbrennungsmotor
DE102012014188A1 (de) * 2012-07-18 2014-01-23 Mahle International Gmbh Kolben für einen Verbrennungsmotor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1049174B (de) * 1956-10-25 1959-01-22 Mahle Kg OElgekuehlter Kolben, insbesondere fuer Brennkraftmaschinen
DD123962A1 (fr) * 1975-12-24 1977-01-26
US6003479A (en) * 1997-05-12 1999-12-21 Evans; Mark M. Piston construction

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2914456A1 (de) * 1979-04-10 1980-10-23 Schmidt Gmbh Karl Gebauter kolben fuer brennkraftmaschinen
DE2916441A1 (de) * 1979-04-24 1980-11-06 Schmidt Gmbh Karl Kolben mit ringtraeger
DE10325914B4 (de) * 2003-06-07 2012-08-02 Mahle Gmbh Kolben für einen Verbrennungsmotor
DE10340292A1 (de) * 2003-09-02 2005-04-14 Mahle Gmbh Kolben für einen Verbrennungsmotor
DE10340291A1 (de) * 2003-09-02 2005-04-14 Mahle Gmbh Kolben für einen Verbrennungsmotor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1049174B (de) * 1956-10-25 1959-01-22 Mahle Kg OElgekuehlter Kolben, insbesondere fuer Brennkraftmaschinen
DD123962A1 (fr) * 1975-12-24 1977-01-26
US6003479A (en) * 1997-05-12 1999-12-21 Evans; Mark M. Piston construction

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008151620A1 (fr) 2007-06-13 2008-12-18 Mahle International Gmbh Piston en deux parties pour un moteur à combustion interne
WO2009016089A1 (fr) * 2007-08-02 2009-02-05 Mahle International Gmbh Piston assemblé

Also Published As

Publication number Publication date
DE102005044597A1 (de) 2007-03-29

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121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase

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