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:
Apr. 30, 1996
Filed:
Sep. 12, 1995
Anthony J Rollin, Midlothian, VA (US);
William J Colucci, Glen Allen, VA (US);
Isaac L Smith, Richmond, VA (US);
Ethyl Corporation, Richmond, VA (US);
Abstract
The invention relates to overcoming a new deposit problem, namely the formation on injector components and intake valves of diesel engines of deposits containing a substantial amount of inorganic material along with some organic binder materials. This problem has been traced to the presence of trace amounts of alkali metal salts in the fuel composition, and the invention overcomes the problem by including in such fuels a minor amount of at least one fuel-soluble complexing agent capable of forming in the diesel fuel oil a fuel-soluble complex with said inorganic alkali metal salt and/or the alkali metal cation thereof. The complexing agents used are selected from crown ethers, aza-crown ethers, polycrown ethers, lariat-crown ethers, cryptands, spherands, and bridged spherands.