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. 19, 2008
Filed:
Dec. 30, 2004
Giuseppe Natoli, Turin, IT;
Giulio Giovanni Pometto, Turin, IT;
Alfio Bonciolini, Turin, IT;
Hans Heinrich Petersen, Solrød Strand, DK;
Jørn Dragsted, Allerød, DK;
Claus Martin Olesen, Hillerod, DK;
Klaus-werner Damm, Chagrin Falls, OH (US);
Giuseppe Natoli, Turin, IT;
Giulio Giovanni Pometto, Turin, IT;
Alfio Bonciolini, Turin, IT;
Hans Heinrich Petersen, Solrød Strand, DK;
Jørn Dragsted, Allerød, DK;
Claus Martin Olesen, Hillerod, DK;
Klaus-Werner Damm, Chagrin Falls, OH (US);
A.P. Moeller-Maersk/AS, Copenhagen K., DK;
Abstract
A method and system to reduce fuel consumption and environmental impact in a two-stroke engine. Fresh system oil having a TBN less than 10 is provided and used in the two-stroke engine to produce partially used system oil. The partially used system oil is withdrawn from the two stroke engine and at least one friction modifier is added to at least some of the withdrawn partially used system oil, wherein the addition of the at least one friction modifier reduces the friction coefficient of the withdrawn system oil, resulting in a system oil having reduced friction. The system oil with reduced friction is combined with partially used system oil remaining in said two-stroke and the combined system oil is used to lubricate pistons of said two-stroke engine.