Piston for an internal combustion engine

Details Piston for an internal combustion engine Piston for an internal combustion engine

2008-05-27

2008-05-27

Lopez, F. Daniel (Department: 3745)

Expansible chamber devices

Piston

Open-ended hollow skirt type

Reexamination Certificate

active

11320080

ABSTRACT:
A piston for an internal combustion engine, which performs a sliding reciprocating motion in a cylinder, and a method for producing the piston. The piston has a piston head and a piston skirt having at least one bearing surface. The at least one bearing surface is provided at least in part with a first overlay, and a second overlay is applied at least to parts of the first overlay. The first overlay exhibits greater wear resistance than the second overlay.

REFERENCES:
patent: 4974498 (1990-12-01), Lemelson
patent: 5314717 (1994-05-01), Alt
patent: 5435872 (1995-07-01), Penrice
patent: 5884600 (1999-03-01), Wang et al.
patent: WO 2005/042953 (2004-10-01), None

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