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:
Apr. 12, 2011

Filed:

Dec. 15, 2006
Applicants:

Arnold Benz, Aichwald, DE;

Helmut Kollotzek, Mutlangen, DE;

Markus Leitl, Remshalden, DE;

Sven Schilling, Korb, DE;

Ernst Limbach, Remshalden, DE;

Josip Zvonkovic, Weinstadt, DE;

Inventors:

Arnold Benz, Aichwald, DE;

Helmut Kollotzek, Mutlangen, DE;

Markus Leitl, Remshalden, DE;

Sven Schilling, Korb, DE;

Ernst Limbach, Remshalden, DE;

Josip Zvonkovic, Weinstadt, DE;

Assignee:

Mahle International GmbH, Stuttgart, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22C 9/00 (2006.01); B22C 9/10 (2006.01); B22D 19/00 (2006.01); B23P 15/10 (2006.01); F01P 1/04 (2006.01); F16J 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A piston for an internal combustion engine has annular cooling passage arranged in the vicinity of the piston crown and radially on the outside, which, in those regions of the pin bosses which lie close to the boss holes, has boss cooling passages which are connected to the cooling passage and are intended for improved cooling of the pin bosses.


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