Sintered valve seat insert and method of manufacture thereof

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11988294
APP PUB NO 20220349487A1
SERIAL NO

17243821

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Abstract

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A powder admixture useful for making a sintered valve seat insert includes a first iron-base powder and second iron-base powder wherein the first iron-base powder has a higher hardness than the second iron-base powder, the first iron-base powder including, in weight percent, 1-2 % C, 10-25 % Cr, 5-20 % Mo, 15-25 % Co, and 30-60 wt. % Fe, and the second iron-base powder including, in weight %, 1-1.5 % C, 3-15 % Cr, 5-7 % Mo, 3-6 % W, 1-1.7 % V, and 60-85 % Fe. The powder admixture can be sintered to form a sintered valve seat insert optionally infiltrated with copper.

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Patent Owner(s)

Patent OwnerAddress
L E JONES COMPANY1200 34TH AVENUE MENOMINEE MI 49858

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Doll, David M Fort Worth, US 8 35
Qiao, Cong Yue Menominee, US 27 391

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