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US 5,507,258 AGranted
Pistons for internal combustion engines
AssigneeUnisia Jecs Corporation
InventorMasato Sasaki
Life of this patent
Estimating the term…
Abstract
A piston for an internal combustion engine comprises a wear resisting annulus made of aluminum alloy containing SiC particulates, the wear resisting annulus being cast within a top ring groove upon casting of a piston made of aluminum alloy.
Claims9
A piston for an internal combustion engine, comprising:
- a main body made of aluminum alloy;
- groove means for defining a plurality of piston ring grooves on an outer periphery of said main body;
- and
- a solid annulus disposed on said groove means for resisting wear, said solid annulus being made of aluminium alloy containing silicon carbide (SiC) particulates, said groove means being cast around said solid annulus.
1 more element
A piston for an internal combustion engine, comprising:
- a main body made of aluminium alloy having a plurality of piston ring grooves on an outer periphery thereof;
- and
- a solid annulus cast around and disposed on one of said grooves, said solid annulus being made of aluminium alloy containing silicon carbide particulates.
Dependencies are inferred from the claim text.