EP2053228A3 - Bolt boss of a piston - Google Patents

Bolt boss of a piston Download PDF

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Publication number
EP2053228A3
EP2053228A3 EP08017698.5A EP08017698A EP2053228A3 EP 2053228 A3 EP2053228 A3 EP 2053228A3 EP 08017698 A EP08017698 A EP 08017698A EP 2053228 A3 EP2053228 A3 EP 2053228A3
Authority
EP
European Patent Office
Prior art keywords
piston
pin
connecting rod
hub bore
bolt boss
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Withdrawn
Application number
EP08017698.5A
Other languages
German (de)
French (fr)
Other versions
EP2053228A2 (en
Inventor
Eberhard Weiss
Gregor Müller
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.)
KS Kolbenschmidt GmbH
Original Assignee
KS Kolbenschmidt 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 KS Kolbenschmidt GmbH filed Critical KS Kolbenschmidt GmbH
Publication of EP2053228A2 publication Critical patent/EP2053228A2/en
Publication of EP2053228A3 publication Critical patent/EP2053228A3/en
Withdrawn legal-status Critical Current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 

Abstract

Die Erfindung betrifft einen insbesondere aus einem Leichmetallwerkstoff gegossenen Kolben (1), eingesetzt in Brennkraftmaschinen, der in einem Kolbenschaft (5) zwei diametral gegenüberliegende Bolzennaben (6) aufweist, in die jeweils eine Nabenbohrung (7) zur Aufnahme eines Kolbenbolzens (9) eingebracht ist. Im Betriebszustand ist ein Pleuel (8) über ein Pleuelauge (11) schwenkbar an dem Kolbenbolzen (9) angelenkt. Zur Erzielung einer vergrößerten Abstützung des Kolbenbolzens (9) an der Bolzennabe (6) weist diese in einem oberen, einem Kolbenboden (2) zugewandten Bereich eine Anformung (14) auf, wodurch sich eine Scheitellinie (15) der Nabenbohrung (7) in Richtung einer Pleuelaufnahme (12) verlängert, unter Bildung einer Abstützfläche (13).

Figure imgaf001
The invention relates to a piston (1) cast in particular from a lightweight metal material, used in internal combustion engines, which has two diametrically opposed pin bosses (6) in a piston shaft (5), into each of which a hub bore (7) for receiving a piston pin (9) is. In operation, a connecting rod (8) via a connecting rod eye (11) is pivotally articulated to the piston pin (9). To achieve an increased support of the piston pin (9) on the pin boss (6), this has an Anformung (14) in an upper, a piston head (2) facing area, whereby a crest line (15) of the hub bore (7) in the direction a connecting rod (12) extended, forming a support surface (13).
Figure imgaf001
EP08017698.5A 2007-10-23 2008-10-09 Bolt boss of a piston Withdrawn EP2053228A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007050516 2007-10-23

Publications (2)

Publication Number Publication Date
EP2053228A2 EP2053228A2 (en) 2009-04-29
EP2053228A3 true EP2053228A3 (en) 2014-12-10

Family

ID=40044118

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08017698.5A Withdrawn EP2053228A3 (en) 2007-10-23 2008-10-09 Bolt boss of a piston

Country Status (2)

Country Link
EP (1) EP2053228A3 (en)
DE (1) DE102008051089A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020180573A (en) * 2019-04-25 2020-11-05 株式会社クボタ Supporting structure of piston and connection rod

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56167831A (en) * 1980-05-28 1981-12-23 Yanmar Diesel Engine Co Ltd Piston for internal combustion engine
EP0182034A1 (en) * 1984-10-22 1986-05-28 Toyota Jidosha Kabushiki Kaisha Piston for internal combustion engine
EP0270139A1 (en) * 1986-11-21 1988-06-08 KOLBENSCHMIDT Aktiengesellschaft Light-weight piston for internal-combustion engines
DE19837596C1 (en) * 1998-08-19 2000-01-05 Ks Kolbenschmidt Gmbh Light-metal piston for internal combustion engine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59120755A (en) * 1982-12-27 1984-07-12 Toyota Motor Corp Piston for internal-combustion engine
DE3609019C1 (en) 1986-03-18 1987-09-10 Mahle Gmbh Method for the production of the hub hole of a trunk piston, particularly for internal combustion engines
DE3840841A1 (en) 1988-12-03 1990-06-07 Kolbenschmidt Ag Light alloy piston for internal combustion engines

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56167831A (en) * 1980-05-28 1981-12-23 Yanmar Diesel Engine Co Ltd Piston for internal combustion engine
EP0182034A1 (en) * 1984-10-22 1986-05-28 Toyota Jidosha Kabushiki Kaisha Piston for internal combustion engine
EP0270139A1 (en) * 1986-11-21 1988-06-08 KOLBENSCHMIDT Aktiengesellschaft Light-weight piston for internal-combustion engines
DE19837596C1 (en) * 1998-08-19 2000-01-05 Ks Kolbenschmidt Gmbh Light-metal piston for internal combustion engine

Also Published As

Publication number Publication date
EP2053228A2 (en) 2009-04-29
DE102008051089A1 (en) 2009-04-30

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