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:
May. 23, 2017

Filed:

Jun. 27, 2013
Applicant:

Mahle International Gmbh, Stuttgart, DE;

Inventors:

Montgomery L. Wilder, Morristown, TN (US);

Matthias Seifried, Boesingen, DE;

Helmut Edel, Rottweil-Feckenhausen, DE;

Reiner Mueller, Rottweil, DE;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02F 3/00 (2006.01); B23K 20/12 (2006.01); F02B 11/00 (2006.01); F02F 3/22 (2006.01); B23K 1/00 (2006.01); B23K 26/28 (2014.01); B23K 31/00 (2006.01); B23K 101/00 (2006.01); B23K 103/04 (2006.01); B23K 103/06 (2006.01); B23K 103/10 (2006.01);
U.S. Cl.
CPC ...
F02F 3/0015 (2013.01); B23K 1/001 (2013.01); B23K 20/12 (2013.01); B23K 26/28 (2013.01); B23K 31/003 (2013.01); F02B 11/00 (2013.01); F02F 3/003 (2013.01); F02F 3/22 (2013.01); B23K 2201/003 (2013.01); B23K 2203/04 (2013.01); B23K 2203/06 (2013.01); B23K 2203/10 (2013.01);
Abstract

Pistons and methods of making the same are disclosed. An exemplary piston assembly may include a piston crown and skirt. The crown may include a crown collar wall extending downward toward a free end of the crown collar wall. The skirt may include a pair of oppositely disposed pin bosses that each define piston pin bores configured to receive a piston pin for securing a connecting rod between the pin bosses. The skirt may further include a radially inner skirt mating surface abutted along a radially inner interface region with the radially inner crown mating surface, and a radially outer skirt mating surface abutted along a radially outer interface region with the radially outer crown mating surface such that a cooling gallery is substantially enclosed. The skirt may further include an inner collar wall extending upwards to the free end of the crown collar wall.


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