Piston for internal combustion engine

Details Piston for internal combustion engine Piston for internal combustion engine

2007-10-30

2007-10-30

Lazo, Thomas E. (Department: 3745)

Expansible chamber devices

With lubricating means

Piston has lubricant retaining or conducting means

C092S223000

Reexamination Certificate

active

11287247

ABSTRACT:
A piston for an internal combustion engine, the piston having a skirt part, comprises: a resinous coating layer formed on a surface of the skirt part; and a plurality of concaves regularly arranged in the resinous coating layer. The concaves are non-coated regions in which said resinous coating layer is not formed.

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