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:
Jul. 06, 2021
Filed:
Mar. 17, 2020
Mahle International Gmbh, Stuttgart, DE;
Christoph Beerens, Stuttgart, DE;
Abstract
A piston for an internal combustion engine may include a piston head, an encircling fire land, and at least one annular groove structured to receive a piston ring and disposed contiguous to the fire land. The piston may include a first fire land portion having a first axial height h, a second fire land portion having a second axial height h, and a third fire land portion having a third axial height h. The first fire land portion may have an upper external diameter D. The third fire land portion may have a lower external diameter D. A transition from the first to the second fire land portion may have a first external diameter D. A transition from the second to the third fire land portion may have a second external diameter D. The relationship (D−D)/h>(D−D)/hmay apply.