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:
Jan. 30, 2024
Filed:
Oct. 18, 2021
Applicant:
Caterpillar Inc., Peoria, IL (US);
Inventors:
Jeffrey Clark Krieger, Brimfield, IL (US);
Michael D. Roley, Washington, IL (US);
Kyle Michael Rader, Peoria, IL (US);
Assignee:
Caterpillar Inc., Peoria, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01L 3/20 (2006.01); F01L 3/02 (2006.01); B21K 1/22 (2006.01); F01L 3/06 (2006.01); F02F 1/24 (2006.01);
U.S. Cl.
CPC ...
F01L 3/20 (2013.01); F01L 3/02 (2013.01); B21K 1/22 (2013.01); F01L 3/06 (2013.01); F01L 2301/00 (2020.05); F01L 2303/00 (2020.05); F02F 2001/245 (2013.01);
Abstract
An engine valve includes a stem, a head comprising an outer lip surface, a seating surface extending from the outer lip surface toward the stem, and a combustion surface extending from the outer lip surface on the opposite side of the head as compared to the seating surface. The combustion surface includes a first convex arcuate surface spaced away from the outer lip surface, at least partially forming a raised ring, and a first concave arcuate surface spaced away from the outer lip surface, at least partially forming a dimple.