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:
Mar. 02, 2021
Filed:
Nov. 13, 2018
Applicant:
Caterpillar Inc., Deerfield, IL (US);
Inventors:
Ashwin Hattiangadi, Edwards, IL (US);
Rong Qu, Dunlap, IL (US);
Sanjay Kumar, Dunlap, IL (US);
Kevin Yoder, Peoria Heights, IL (US);
Assignee:
Caterpillar Inc., Peoria, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01L 3/04 (2006.01); F01L 3/22 (2006.01); F02M 21/02 (2006.01); F16K 1/42 (2006.01); F16K 25/00 (2006.01); F16K 25/04 (2006.01);
U.S. Cl.
CPC ...
F01L 3/04 (2013.01); F01L 3/22 (2013.01); F02M 21/023 (2013.01); F02M 21/026 (2013.01); F16K 1/42 (2013.01); F16K 25/005 (2013.01); F16K 25/04 (2013.01);
Abstract
A valve seat insert for a gas exchange valve controlling gas exchange of a cylinder includes an insert body having an inner peripheral surface, an outer peripheral surface, and a valve seating surface structured to contact the gas exchange valve at a closed position and profiled to limit valve recession thereof. The valve seating surface includes an arrangement of linear segments and curved segments forming crowns to contact the gas exchange valve at different wear states.