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. 05, 2015
Filed:
Mar. 28, 2012
Ronald O. Grover, Jr., Northville, MI (US);
Hanho Yun, Oakland Township, MI (US);
Tito R. Huffman, Eastpointe, MI (US);
Paul M. Najt, Bloomfield Hills, MI (US);
Ronald O. Grover, Jr., Northville, MI (US);
Hanho Yun, Oakland Township, MI (US);
Tito R. Huffman, Eastpointe, MI (US);
Paul M. Najt, Bloomfield Hills, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A piston for an internal combustion engine is located within a cylinder of the engine. The piston includes a dish-shaped depression in a surface of the piston exposed to a combustion chamber of the cylinder providing a recess from a nominal top of the piston. The depression includes a depression boundary located at the nominal top of the piston and proximate to an outer diameter of the piston, an apex, and inclined walls connecting the apex to the depression boundary.