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    A low-sulfur consumable lubricating oil composition and a method of operating aninternal combustion engine using the same
    1.
    发明专利
    A low-sulfur consumable lubricating oil composition and a method of operating aninternal combustion engine using the same 未知

    公开(公告)号：AU8117401A

    公开(公告)日：2002-04-02

    申请号：AU8117401

    申请日：2001-08-08

    Applicant: LUBRIZOL CORP

    Inventor： CHAMBERLIN WILLIAM B III ,  PUDELSKI JOHN K

    IPC: C10M101/02 ,  C10M105/04 ,  C10M133/56 ,  C10M169/04 ,  C10M171/00 ,  C10N40/25 ,  F01L9/02 ,  F01L9/04 ,  F01M9/10 ,  F01N3/021 ,  F01N3/20 ,  F02M25/00 ,  F16N15/00 ,  F01M11/04

    Abstract: This invention relates to a low-sulfur consumable lubricating oil composition, comprising: a base oil; an acylated nitrogen-containing compound having a substituent of at least about 10 aliphatic carbon atoms; and a sulfur content of about 5 to about 250 ppm; said composition being characterized by the absence of an extreme-pressure additive comprised of metal and phosphorus. This invention further relates to a a method of operating an internal combustion engine equipped with an exhaust gas after treatment device, said method comprising: (A) operating said engine using a normally liquid or gaseous fuel; (B) lubricating said engine using the foregoing low-sulfur consumable lubricating oil composition; (C) removing part of said low-sulfur consumable lubricating oil composition from said engine, said removed part of said low-sulfur consumable lubricating oil composition (i) being combined with said fuel and consumed with said fuel as said engine is operated or (ii) being combined with the exhaust gas from said engine and removed from said engine with said exhaust gas; and (D) adding an additional amount of said low-sulfur consumable lubricating oil composition to said engine to replace said removed part of said low-sulfur consumable lubricating oil composition.

    6.
    发明专利
    未知

    公开(公告)号：MX171619B

    公开(公告)日：1993-11-08

    申请号：MX2178290

    申请日：1990-07-31

    Applicant: LUBRIZOL CORP

    Inventor： CHAMBERLIN WILLIAM B III ,  ZALAR FRANK V

    IPC: C10M163/00 ,  C10N10/02 ,  C10N10/04 ,  C10N30/04 ,  C10N30/06 ,  C10N40/25 ,  C10M105/22 ,  C10N40/005

    Abstract: A lubricating oil composition is described which is useful in spark-ignited engines which may be fueled with gasoline, alcohol, or mixtures of both. More particularly, lubricating oil compositions for spark-ignited engines are described which comprise (A) an oil of lubricating viscosity; (B) at least one detergent selected from the group consisting of a basic magnesium salt of an organic acid or a mixture of at least one basic magnesium salt of an organic acid and another alkaline earth metal salt of an organic acid wherein the metal in the mixture is predominantly magnesium; and (C) at least one metal salt of (C-1) a substituted succinic acid acylated polyamine; or (C-2) a hydrocarbon-substituted aromatic carboxylic acid containing at least one hydroxyl group attached to an aromatic ring, provided that the metal of said metal salt (C) is not calcium or magnesium. Lubricants primarily useful for lubricating alcohol-fueled, spark-ignited engines also are described which comprise (A) a lubricating oil, (B) a detergent as described above, and (D) at least one carboxylic acid derivative composition useful as a dispersant. The oil compositions of the invention also may contain, and generally do contain other desirable additives such as (E) mixtures of metal salts of dihydrocarbyl phosphorodithioic acids; (F) sulfurized olefins; etc. In one embodiment, the oil compositions of the present invention contain the above additives and other additives described in the specification in amounts sufficient to enable the oil to meet all the performance requirements of the API Service Classification identified as "SG".

    8.
    发明专利
    未知

    公开(公告)号：NO903356L

    公开(公告)日：1991-02-01

    申请号：NO903356

    申请日：1990-07-30

    Applicant: LUBRIZOL CORP

    Inventor： CHAMBERLIN WILLIAM B III ,  ZALAR FRANK V

    IPC: C10M163/00 ,  C10N10/02 ,  C10N10/04 ,  C10N30/04 ,  C10N30/06 ,  C10N40/25 ,  C10M141/00

    Abstract: A lubricating oil composition is described which is useful in spark-ignited engines which may be fueled with gasoline, alcohol, or mixtures of both. More particularly, lubricating oil compositions for spark-ignited engines are described which comprise (A) an oil of lubricating viscosity; (B) at least one detergent selected from the group consisting of a basic magnesium salt of an organic acid or a mixture of at least one basic magnesium salt of an organic acid and another alkaline earth metal salt of an organic acid wherein the metal in the mixture is predominantly magnesium; and (C) at least one metal salt of (C-1) a substituted succinic acid acylated polyamine; or (C-2) a hydrocarbon-substituted aromatic carboxylic acid containing at least one hydroxyl group attached to an aromatic ring, provided that the metal of said metal salt (C) is not calcium or magnesium. Lubricants primarily useful for lubricating alcohol-fueled, spark-ignited engines also are described which comprise (A) a lubricating oil, (B) a detergent as described above, and (D) at least one carboxylic acid derivative composition useful as a dispersant. The oil compositions of the invention also may contain, and generally do contain other desirable additives such as (E) mixtures of metal salts of dihydrocarbyl phosphorodithioic acids; (F) sulfurized olefins; etc. In one embodiment, the oil compositions of the present invention contain the above additives and other additives described in the specification in amounts sufficient to enable the oil to meet all the performance requirements of the API Service Classification identified as "SG".

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