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:
Jan. 16, 2007
Filed:
Dec. 29, 2005
Valerian Ioja, Windsor, CA;
Michael T. Lapp, Bloomfield, MI (US);
Valerian Ioja, Windsor, CA;
Michael T. Lapp, Bloomfield, MI (US);
Mahle Technology, Inc., Farmington Hills, MI (US);
Mahle International GmbH, Stuttgart, DE;
Abstract
A two-part piston for an internal combustion engine, comprising a piston head and a piston skirt connected with the piston head in articulated manner, by way of a piston pin. The piston head has a piston crown that is followed by a cylindrical circumference surface having a top land and a ring belt. The piston head can include a ring-shaped circumferential cooling channel disposed within the piston head. The opening of this cooling channel faces the piston skirt, and is closed off with a seal element. There is a seal element that has a first free end that is held between piston head and piston skirt, or rests against an outer wall of the cooling channel. The seal element has a second free end that rests against the piston head, and wherein the seal element has a bottom that lies on a surface of the piston skirt that faces the cooling channel.