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EP0185352A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Light-weight piston, especially for an internal-combustion engine

Assignee: Everllence France SAS
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Filing: 1985-12-17
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Granted: —
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Expires: 2005-12-17
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Abstract

Abstract Translated from French La présente invention concerne un piston, notamment pour un moteur à combustion interne, constitué d'une tête (1) et d'un corps (2) monobloc ou en deux parties, la tête étant en appui sur le corps (2) par l'intermédiaire d'au moins deux surfaces d'appui (4, 5) circulaires, le corps (2) étant muni d'un palier (6) recevant une pièce d'articulation (10) fixée rigidement à l'extrémité d'une bielle (3), ce palier (6) comportant, côté tête de piston, une paroi (7) formant palier dont la portée (8) est continue, caractérisé en ce que la partie du corps (2) reliant la paroi (7) aux surfaces d'appui (4, 5) est formée par au moins deux cloisons minces (11, 12) d'allure tronconique dont les axes médians (13, 14, 15, 16) sont rectilignes, chaque cloison s'appuyant sur une surface d'appui (4, 5) distincte. Application aux moteurs à combustion interne, notamment aux gros moteurs marins. The present invention relates to a piston, in particular for an internal combustion engine, consisting of a head (1) and a body (2) in one piece or in two parts, the head being supported on the body (2) by the 'intermediary of at least two circular bearing surfaces (4, 5), the body (2) being provided with a bearing (6) receiving an articulation piece (10) rigidly fixed at the end of a connecting rod (3), this bearing (6) comprising, on the piston head side, a wall (7) forming a bearing the bearing (8) of which is continuous, characterized in that the part of the body (2) connecting the wall (7) at the bearing surfaces (4, 5) is formed by at least two thin partitions (11, 12) of frustoconical appearance whose median axes (13, 14, 15, 16) are rectilinear, each partition resting on a separate bearing surface (4, 5). Application to internal combustion engines, in particular to large marine engines.

Inventors

  • 👤 Philippe Ayoul

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-06 15:09
CPC Classifications
F; F02; F02F; F02F3/00; F02F3/0015; F02F3/0069; F02F3/003; F02F3/0076; F02F3/16; F02F3/20; F02F3/22; F16; F16J; F16J1/00; F16J1/10; F16J1/14; F02B; F02B3/00; F02B3/06

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

FR675593A Cited
DE1081289B Cited
FR2381181A2 Cited
FR2388140A1 Cited

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