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:
Oct. 01, 2019
Filed:
Feb. 21, 2017
Federal-mogul Llc, Southfield, MI (US);
Thomas Scherbaum, Forchheim, DE;
Sven Ungermann, Nürnberg, DE;
Harald Mergler, Nürnberg, DE;
Josef Harrer, Hilpoltstein, DE;
Michael Seiffert, Nürnberg, DE;
Georg Hopp, Rednithembach, DE;
Arnd Baberg, Fürth, DE;
Hanno Necker, Nürnberg, DE;
Michael Weinenger, Southfield, MI (US);
Jeffrey L. Riffe, Troy, MI (US);
Tenneco Inc., Lake Forest, IL (US);
Abstract
A galleryless piston having a reduced temperature during operation in an engine is provided. The piston includes an upper wall with an exposed undercrown surface. A ring belt and pin bosses depend from the upper wall, and a pair of skirt panels depend from the ring belt and are coupled to the pin bosses by struts. The piston includes an inner undercrown region and outer pockets extending along the undercrown surface. The inner undercrown region is surrounded by the skirt panels, the struts, and the pin bosses. Each outer pocket is surrounded by one of the pin bosses, a portion of the ring belt, and the struts adjacent the one pin boss. A plurality of holes extend through the pin bosses and/or the struts from the inner undercrown region to one of the outer pockets to convey cooling oil from the inner undercrown region to the outer pockets.