Connecting rod with cast-in insert

F - Mech Eng,Light,Heat,Weapons – 16 – J

Patent

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F16J 7/00 (2006.01)

Patent

CA 2615759

A cast metal connecting rod of the type used in a reciprocating piston engine has a beam section between two end sections. The beam section and the end sections are integral with one another and are at least partially made of a cast metal material. At least the beam section of the connecting rod includes an insert made of a sintered powder metal material. The insert is at least partially encapsulated by the cast metal material of the connecting rod. The insert reinforces the connecting rod and can help match characteristics of surrounding or mating parts of the engine that are made of materials more similar to the material of the insert than the cast metal of the connecting rod. The cast metal material, for example aluminum alloy, of the connecting rod can also provide localized regions of high machinability where needed.

Bielle coulée du type utilisé dans un moteur à piston alternatif, qui comporte une poutre entre deux extrémités. Poutre et extrémités sont intégrées et au moins en partie en matériau coulé. Au moins la poutre comprend une pièce insérée en matériau métallique en poudre fritté. Ladite pièce est au moins partiellement encapsulée par le matériau métallique coulé de la tige et elle renforce cette tige, pouvant contribuer à établir un rapprochement avec les caractéristiques de parties de moteur voisines ou couplées qui sont en matériau se rapprochant plus de celui de la pièce en question que du matériau coulé de la tige. Le matériau métallique coulé, par exemple un alliage d'aluminium, qui constitue la tige, peut également présenter des zones localisées à haute capacité d'usinage, le cas échéant.

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