Piston with a reinforcing insert
AssigneeMetal Leve S.A. Industria e Comercio
InventorsGeorg Daxer, Jose Leites
Life of this patent
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Abstract
Piston with a reinforcing insert, presenting a top face (11) with a recessed combustion chamber (12) provided with a lateral peripheral wall, defined by the annular insert (20), which presents an internal end face (24) with a radial extension (d.sub.1) that is substantially smaller than the radial extension (d.sub.2) of the opposite external end face (22) of the annular insert (20). The radial thickness of the insert (20) varies along the profile of its external peripheral face (23), in order to maintain a value necessary to meet the requirements of structural reinforcement of the piston (10), at the region where the insert (20) is applied.
Claims6
Piston with a reinforcing insert, said piston presenting a top face (11) with a recessed combustion chamber (12), whose lateral peripheral wall is defined by an annular insert (20), which has an internal peripheral face (21), an external peripheral face (23), and an internal end face (24) with a radial extension (d.sub.1) substantially smaller than the radial extension (d.sub.2) of an opposite external end face (22), adjacent to and defining part of the piston top face (11), characterized in that the external peripheral face (23) of the insert (20) is defined by a first portion (23a) adjacent to the external end face (22) and mantaining the radial thickness of the insert at a value, necessary to meet the requirements of the structural reinforcement of the piston (10) throughout the axial extension of its region where said first portion (23a) is positioned, and by a second inverted frusto-conical portion (23b), whose smaller base defines the internal end face (24) of the annular insert (20).
Dependencies are inferred from the claim text.