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:
Aug. 26, 2014
Filed:
Dec. 20, 2011
John R. Gladden, Lafayette, IN (US);
Jonathan Kilkenny, Peoria, IL (US);
Christopher Batta, West Lafayette, IN (US);
John R. Gladden, Lafayette, IN (US);
Jonathan Kilkenny, Peoria, IL (US);
Christopher Batta, West Lafayette, IN (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
The piston has a crown forming a piston bowl. The piston bowl has a center portion with a convex spherical shape, a floor having a convex frusto-conical shape adjacent the center portion, and a base having a concave toroidal shape surrounding the floor. The piston bowl also has a cylindrical wall extending tangentially from the base that surrounds the center portion. The piston has a top surface perpendicular to the cylindrical wall along a rim of the piston bowl. A ratio between the piston bowl depth and the cylindrical wall length is less than 4, and a ratio between the piston bowl diameter and the piston bowl depth is 4.7.