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. 04, 1994
Filed:
Mar. 05, 1993
Casper J Dorer, Lyndhurst, OH (US);
The Lubrizol Corporation, Wickliffe, OH (US);
Abstract
A two component additive and a liquid hydrocarbon based fuel composition, containing the additive are disclosed. The fuel composition is comprised of a major amount of a liquid hydrocarbon diesel fuel and a minor fuel efficiency improving amount of the additive. The additive is composed of: (A) an overbased transition metal salt of a carboxylic acid; and (B) a compound represented by the general formula II: ##STR1## wherein R.sub.1 and R.sub.2 are independently hydrocarbyl. The additive may include a third component (C) which is a hydrocarbon-soluble ashless dispersant. The dispersant (C) is preferably a derivative of a substituted succinic acid wherein the hydrocarbyl substituent is derived from a polyalkylene characterized by a Mn value of about 500 to about 10,000 and a Mw/Mn value of about 1.0 to about 4.0.