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:
Aug. 20, 2002
Filed:
Sep. 11, 2000
Philippe Damour, Frankfurt, DE;
Carmo Ribeiro, Ann Arbor, MI (US);
Federal-Mogul Wiesbaden GmbH, Wiesbaden, DE;
Abstract
The invention relates to a piston head ( ) of a piston for an internal combustion engine, in particular for diesel engines, comprising an upper part ( ) having a piston crown extending substantially perpendicularly to the longitudinal axis (A) of a piston, and a lower part ( ) connected with the upper part ( ) and having two pin bosses ( ), the mutually facing sides of which are arranged at a mutual distance from one another, the pin bosses ( ) each comprising a pin hole ( ) extending perpendicularly to the longitudinal axis (A) of the piston and in each case aligned with the other and a cavity being formed in the junction area ( ) of the upper part ( ) and the lower part ( ), which cavity adjoins the piston crown ( ) on the pin boss side and opens into the area between the pin bosses ( ). According to the invention, a recess ( ) opening into the cavity ( ) and extending in the direction of the longitudinal axis (A) of the piston is formed in at least one, preferably in both, of the mutually facing sides ( ) of the pin bosses ( ).