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. 24, 2021
Filed:
Sep. 21, 2020
GM Global Technology Operations Llc, Detroit, MI (US);
Alberto Lorenzo Vassallo, Turin, IT;
Francesco Concetto Pesce, Turin, IT;
Michele Dematteis, Pinerolo, IT;
Fabio Numidi, Agliè, IT;
Andrea Tripodi, Genoa, IT;
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Abstract
A piston for an internal combustion engine includes a piston body having a generally planar crown and a sidewall extending from the crown. A stepped combustion bowl is recessed in the crown and includes an outer bowl recessed relative to the crown and defining a generally planar annular floor surface. The stepped combustion bowl further includes an inner bowl recessed relative to the outer bowl. The inner bowl includes a sidewall that slopes continually inwardly from the outer bowl to a floor surface of the inner bowl. A plurality of protruding lips extend from the sidewall toward a central axis of the piston body.