The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 21, 2024
Filed:
Apr. 29, 2021
Applicant:
L.e. Jones Company, Menominee, MI (US);
Inventors:
Cong Yue Qiao, Menominee, MI (US);
David M. Doll, Fort Worth, TX (US);
Assignee:
L.E. Jones Company, Menominee, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K 25/00 (2006.01); B22F 3/12 (2006.01); B22F 3/24 (2006.01); B22F 5/00 (2006.01); F01L 3/02 (2006.01);
U.S. Cl.
CPC ...
F16K 25/005 (2013.01); B22F 3/12 (2013.01); B22F 3/24 (2013.01); B22F 5/008 (2013.01); F01L 3/02 (2013.01); B22F 2003/248 (2013.01); B22F 2301/10 (2013.01); B22F 2301/15 (2013.01); B22F 2301/35 (2013.01); B22F 2302/40 (2013.01); F01L 2301/00 (2020.05); F01L 2303/00 (2020.05);
Abstract
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.