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:
Jun. 28, 2022
Filed:
Dec. 17, 2019
Applicant:
Caterpillar Inc., Peoria, IL (US);
Inventors:
Bradley Morgan, Chillicothe, IL (US);
Jeffrey Clark Krieger, Brimfield, IL (US);
Assignee:
Caterpillar Inc., Peoria, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02B 23/00 (2006.01); F02F 3/28 (2006.01); F01L 3/20 (2006.01); F01L 3/22 (2006.01); F02F 1/00 (2006.01); F02F 1/24 (2006.01); F02F 1/42 (2006.01); F02F 3/26 (2006.01); F02M 61/14 (2006.01); F16J 1/00 (2006.01);
U.S. Cl.
CPC ...
F02F 3/28 (2013.01); F01L 3/20 (2013.01); F01L 3/22 (2013.01); F02F 1/004 (2013.01); F02F 1/242 (2013.01); F02F 1/4264 (2013.01); F02F 3/26 (2013.01); F02M 61/14 (2013.01); F16J 1/005 (2013.01); F02F 2001/247 (2013.01);
Abstract
A piston for an internal combustion engine includes a plurality of valve pockets formed in a piston rim, the valve pockets forming fluid flow paths through the piston rim. Each of the valve pockets includes a central step standing proud of a pocket floor to limit a fluid flow area through the pocket and slow combustion gas flow from a combustion bowl toward a cylinder liner and thereby reduce displacement of an engine oil film thereon.