Lubricant compositions for internal combustion engines

Details Lubricant compositions for internal combustion engines Lubricant compositions for internal combustion engines

1989-06-01

1992-08-25

Hearn, Brian E.

Compositions

Electrolytes for electrical devices

252 32, 252 327R, 252 482, C10M10504, C10M11102

Patent

active

051416573

ABSTRACT:
In accordance with the present invention, there are provided low sulfated ash lubricating oil compositions which copmrise an oil of lubricating viscosity as the major component and as the minor component (A) at least about 3 wt % of at least one ashless nitrogen- or ester-containing dispersant, (B) at least about 2 wt % of at least one sulfurized alkyl phenol, and (C) at least one metal dihydrocarbyl dithiophosphate wherein the hydrocarbyl groups contain an average of at least 6 carbon atoms, and wherein the lubricating oil is characterized by a total sulfated ash (SASH) level of from 0.01 to about 0.6 wt % and by a SASH:dispersant wt:wt ratio of from about 0.01 to about 0.2:1.

REFERENCES:
patent: 41563562 (1979-05-01), Jarezelski
patent: 2389527 (1945-11-01), McCleary
patent: 2713557 (1955-07-01), Lowe
patent: 2766207 (1956-10-01), McDermott
patent: 3018247 (1962-01-01), Anderson et al.
patent: 3018250 (1962-01-01), Anderson et al.
patent: 3018291 (1962-01-01), Anderson et al.
patent: 3215632 (1965-11-01), Hughes et al.
patent: 3239462 (1966-03-01), Bergstrom et al.
patent: 3272746 (1966-09-01), Le Suer et al.
patent: 3285854 (1966-11-01), Malone
patent: 3320163 (1967-05-01), Abbott et al.
patent: 3519564 (1970-07-01), Vogel
patent: 3533943 (1970-10-01), Papayannopoulos
patent: 3714042 (1973-01-01), Greenough
patent: 3853774 (1974-12-01), Crocker
patent: 3865739 (1975-02-01), Waldbillig
patent: 3869395 (1975-03-01), Waldbillig
patent: 3879306 (1975-04-01), Kablaoui et al.
patent: 3904537 (1975-09-01), Ripple
patent: 4048056 (1977-09-01), Romovacek
patent: 4089790 (1978-05-01), Adams
patent: 4089791 (1978-05-01), Haugen et al.
patent: 4089794 (1978-05-01), Engel et al.
patent: 4104179 (1978-08-01), Colclough
patent: 4113639 (1978-09-01), Lonstrup et al.
patent: 4115287 (1978-09-01), Colclough et al.
patent: 4123369 (1978-10-01), Miller
patent: 4136043 (1979-01-01), Davis
patent: 4140643 (1979-02-01), Davis
patent: 4147640 (1979-04-01), Jayne et al.
patent: 4157972 (1979-06-01), Hotten
patent: 4163729 (1979-08-01), Adams
patent: 4164473 (1979-08-01), Coupland
patent: 4165292 (1979-08-01), Davis et al.
patent: 4173540 (1979-11-01), Lonstrup et al.
patent: 4178259 (1979-12-01), King
patent: 4192757 (1980-03-01), Davis et al.
patent: 4201683 (1980-05-01), Brewster
patent: 4219430 (1980-08-01), Vaughan
patent: 4246126 (1981-01-01), Arakelian et al.
patent: 4248720 (1981-02-01), Coupland
patent: 4282106 (1981-08-01), Schaap
patent: 4330420 (1982-05-01), White et al.
patent: 4372862 (1983-02-01), Miller
patent: 4375418 (1983-03-01), Zoleski et al.
patent: 4382005 (1983-05-01), Miller
patent: 4427560 (1984-01-01), Holstedt et al.
patent: 4502970 (1985-03-01), Schetelich et al.
patent: 4517104 (1985-05-01), Bloch et al.
patent: 4533480 (1985-08-01), Holstedt et al.
patent: 4557843 (1985-12-01), Holstedt et al.
patent: 4595514 (1986-01-01), Holstedt et al.
patent: 4612129 (1986-09-01), Dibiase et al.
patent: 4623474 (1986-11-01), Holstedt et al.
patent: 4627930 (1986-12-01), Holstedt et al.
patent: 4629579 (1986-12-01), Jessup et al.
patent: 4629580 (1986-12-01), Holstedt et al.
patent: 4639324 (1987-01-01), Lam
patent: 4657686 (1987-04-01), Holstedt et al.
patent: 4683069 (1987-07-01), Brewster et al.
J. A. McGeehan, Society of Automotive Engineers, Inc., "Effect of Piston Deposits, Fuel Sulfur, and Lubricant Viscosity on Diesel Engine Oil Consumption and Cylinder Bore Polishing", 1984, pp. 4.848-4.869.
Schetelich, et al., The Control of Piston Crownland Deposits in Diesel Engines Through Oil Formulation, Oct. 6-9, 1986.
McGeehan, et al., Some Effects of Zinc Dithiophosphates and Detergents on Controlling Engine Wear, 1986, pp. 879-892.
Hercamp, Premature Loss of Oil Consumption Control in a Heavy Duty Diesel Engine (SAE Technical Paper Series), Oct. 31-Nov. 3, 1983, pp. 1-20.
Schetelich, The Effects of Lubricating Oil Parameters on PC-1 Type Heavy Duty Performance, (SAE Technical Paper Series), Oct. 31-Nov. 3, 1983, pp. 1-10.

Affiliated with

Also associated with

Rating

Lubricant compositions for internal combustion engines does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Lubricant compositions for internal combustion engines, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lubricant compositions for internal combustion engines will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-382885