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US 2004/0000283 A1Published application
Powder metal valve seat insert
AssigneeEaton Corporation
InventorsSundaram L. Narasimhan, Yushu Wang, Heron A. Rodrigues
Life of this patent
Estimating the term…
Abstract
A powder metal engine component particularly suited for use as a valve seat insert in both light and heavy duty internal combustion engine applications. The powder metal engine component contains an intermetallic phase such as a Laves phase for both the cobalt or iron based alloy.
Claims19
A powder metal engine component having a chemical composition on a weight percent basis, comprising:
- about 0.5 to about 1.5% of C;
- about 1.0 to about 4.0% of Cr;
- about 0.3 to about 0.9% of Mn;
- about 3.0 to about 7.0% of Mo;
- about 0.1 to about 0.5% of V;
- about 0.2 to about 2.0% of Ni;
- about 0.2 to about 0.8% of S;
- about 0.2 to about 0.6% of W;
- about 0 to about 20.0% of Cu;
- and
- the balance substantially being Fe.
8 more elements
A powder metal engine component having a chemical composition on a weight percent basis, comprising:
- about 0.7 to about 1.4% of C;
- about 1.0 to about 3.0% of Cr;
- about 6.0 to about 12.0% of Mo;
- about 0.1 to about 1.0% of Si;
- about 0.5 to about 3.0% of Ni;
- about 0.2 to about 0.8% of S;
- about 4.0 to about 15.0% of Co;
- up to about 20.0% of Cu;
- and
- the balance substantially being Fe.
7 more elements
Dependencies are inferred from the claim text.