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.

Date of Patent:
Dec. 06, 2022

Filed:

Apr. 04, 2022
Applicant:

Caterpillar Inc., Peoria, IL (US);

Inventors:

Srikanth Ravisankar, Chennai, IN;

Paul Jon Schweiger, Dunlap, IL (US);

Assignee:

Caterpillar Inc., Peoria, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02F 3/28 (2006.01); F02F 3/20 (2006.01); F02B 23/10 (2006.01); F02F 3/24 (2006.01); F02B 43/10 (2006.01);
U.S. Cl.
CPC ...
F02F 3/24 (2013.01); F02B 23/101 (2013.01); F02B 43/10 (2013.01); F02F 3/20 (2013.01); F02F 3/28 (2013.01); F02B 2023/108 (2013.01); F02B 2043/103 (2013.01); F02B 2275/40 (2013.01);
Abstract

A piston may have an annular body including a crown portion defining a longitudinal axis, a radial direction perpendicular to the longitudinal axis, a plane containing the longitudinal axis and the radial direction, and a contoured combustion bowl. In the plane containing the longitudinal axis and the radial direction, the crown portion includes a radially outer squish surface, and a swirl pocket having a reentrant surface that extends axially downwardly and radially outwardly from the squish surface defining a tangent that forms a reentrant angle with the squish surface that ranges from 33.0 degrees to 37.0 degrees.


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