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:
Feb. 15, 2022
Filed:
Dec. 03, 2020
Applicant:
Caterpillar Inc., Peoria, IL (US);
Inventor:
Bradley Morgan, Orion, MI (US);
Assignee:
Caterpillar Inc., Peoria, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02F 3/22 (2006.01); F16J 1/16 (2006.01); F16J 1/08 (2006.01);
U.S. Cl.
CPC ...
F02F 3/22 (2013.01); F16J 1/08 (2013.01); F16J 1/16 (2013.01);
Abstract
A piston for an internal combustion engine includes a piston crown and a piston skirt, and an oil gallery formed between the piston crown and the piston skirt. A gallery inlet to the oil gallery, and a plurality of gallery drain outlets are formed in the piston skirt. The gallery drain outlets have, circumferentially around the piston center axis, a non-axisymmetric arrangement in a distribution biased to an anti-thrust side of the piston.