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:
Jun. 09, 2015
Filed:
Sep. 03, 2010
Applicant:
Tilmann Haug, Weissenhorn, DE;
Inventor:
Tilmann Haug, Weissenhorn, DE;
Assignee:
Daimler AG, Stuttgart, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F02F 3/00 (2006.01); C22C 38/02 (2006.01); C22C 38/40 (2006.01); C22C 38/58 (2006.01); F02F 3/02 (2006.01);
U.S. Cl.
CPC ...
F02F 3/0084 (2013.01); F05C 2201/021 (2013.01); F02F 3/0092 (2013.01); F02F 3/02 (2013.01); F02F 3/00 (2013.01); C22C 38/02 (2013.01); C22C 38/40 (2013.01); C22C 38/58 (2013.01); F05C 2201/0448 (2013.01); F05C 2251/042 (2013.01);
Abstract
A steel piston with a piston upper part () with combustion chamber recess () and ring wall (), and with a piston lower part () with piston body or piston skirt and with connecting rod bearing () for internal combustion engines with cylinder crankcases made of lightweight metal alloys, with at least the piston lower part consisting of a steel alloy which has a coefficient of thermal expansion in the range from 13 to 20×10−6 1/K.