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:
Dec. 06, 2005
Filed:
Dec. 25, 1999
Isao Nakashima, Ohi-machi, JP;
Noriaki Oomori, Ohi-machi, JP;
Kazuyuki Murakami, Okayama, JP;
Takashi Hino, Kawasaki, JP;
Isao Nakashima, Ohi-machi, JP;
Noriaki Oomori, Ohi-machi, JP;
Kazuyuki Murakami, Okayama, JP;
Takashi Hino, Kawasaki, JP;
TonenGeneral Sekiyu K.K., Saitama, JP;
Abstract
It is an object of the present invention to provide a fuel oil composition for diesel engines showing good CFPP and lubricity, efficiently controlling PM emissions and containing sulfur at 0.05 wt. % or less. The present invention provides a fuel oil composition for diesel engines comprising a base stock which has normal paraffin compounds having a carbon number of 20 or more at 4.0 wt. % or less, specific carbon number distribution in the high-boiling normal paraffin compounds and polynuclear aromatic hydrocarbon compounds at 8.0 vol. % or less, contains sulfur at 0.05 wt. % or less, and is incorporated with 0.01 to 0.1 wt. % (as the active component) of an FI and 0.002 to 0.1 wt. % (as the active component) of a lubricity improver.