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.

Date of Patent:
Mar. 10, 2015

Filed:

Jul. 01, 2011
Applicant:

Rainer Scharp, Vaihingen, DE;

Inventor:

Rainer Scharp, Vaihingen, DE;

Assignee:

MAHLE Industries Inc., Farmington Hills, MI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01B 31/08 (2006.01); F16J 1/04 (2006.01); F02F 3/22 (2006.01); F02F 3/00 (2006.01);
U.S. Cl.
CPC ...
F02F 3/22 (2013.01); F02F 3/003 (2013.01);
Abstract

An exemplary piston assembly and method of making the same are disclosed. An exemplary piston assembly may include a piston crown and skirt. The crown may include radially inner and outer crown mating surfaces, and the crown may define at least in part a cooling gallery extending about a periphery of the crown. The skirt may further include an inner collar wall disposed radially inwardly of a radially inner interface region and extending upwards to a free end. The collar wall may generally enclose the radially inner interface region from the central region.


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