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. 12, 2020
Filed:
Aug. 22, 2018
Applicant:
Federal-mogul Llc, Southfield, MI (US);
Inventors:
Andrew J. Miller, Plymouth, MI (US);
Juan Gildemeister, Howell, MI (US);
Dawnelle Wielosinski, Livonia, MI (US);
Assignee:
Tenneco Inc., Lake Forest, IL (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01P 3/10 (2006.01); F02F 3/22 (2006.01); F02F 3/00 (2006.01);
U.S. Cl.
CPC ...
F02F 3/22 (2013.01); F01P 3/10 (2013.01); F02F 3/0084 (2013.01); F05C 2201/021 (2013.01);
Abstract
An aluminum piston including a cooling gallery with titled inner and outer side walls is provided. The piston comprises a ring belt with a ring grooves, and an iron insert is disposed in a top one of the ring grooves. To reduce stress and mass of the piston, material located under the iron insert is removed, so that the outer side wall of the cooling gallery is tilted toward the center axis. The inner side wall of the cooling gallery is tilted away from the center axis.