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:
May. 28, 2024
Filed:
Jun. 28, 2022
GM Global Technology Operations Llc, Detroit, MI (US);
Ronald John Petrus, Lake Orion, MI (US);
Jared Matthew Satkowiak, Grand Blanc, MI (US);
Hsiao F. Wong, Farmington Hills, MI (US);
Kenneth E. Schroeder, Sanford, MI (US);
Qigui Wang, Rochester Hills, MI (US);
Richard D. Ricchi, Lapeer, MI (US);
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Abstract
An additive manufactured piston having a crown portion and a skirt portion form of an aluminum-cerium-silicon alloy. The piston includes a least one recess pocket in an unstressed region located at an interface between an inner surface of the crown portion and an outer surface of the skirt portion. The skirt portion includes an outer panel surface defining an external rib adjacent a peripheral end surface, at least one stiffening rib extending from a pin boss to a skirt end, and a wall thickness of between 0.2 mm and 1.0 mm in a region between the external rib and the at least one stiffening rib. The skirt portion further includes an internal first rib having a width Won a thrust side portion and an internal second rib having a width Wlocated on an anti-thrust side portion, in which Wis greater than W