Fuel economy additive and lubricant composition containing same

Details Fuel economy additive and lubricant composition containing same Fuel economy additive and lubricant composition containing same

1998-08-26

1999-10-05

Howard, Jacqueline V.

Solid anti-friction devices, materials therefor, lubricant or se

Lubricants or separants for moving solid surfaces and...

Organic -co- compound

508463, C10M12974

Patent

active

059623810

ABSTRACT:
A lubricant composition capable of improving the fuel economy of an internal combustion engine and comprising a base oil as a major component and from about 2 to about 15 wt. %, based on the weight of composition, of a fuel economy improving additive having a viscosity greater than the viscosity of the bulk lubricant and being selected such that the lubricant is characterized by (1) a positive deviation from that of a theoretical line when the elastohydrodynamic (EHD) film thickness thereof is plotted against entrainment speed on a log basis, and by (2) a traction coefficient under both hydrodynamic and mixed lubrication conditions which is lower than it would have been if the fuel economy improving additive were not present in the lubricant is disclosed.

REFERENCES:
patent: 2493483 (1950-01-01), Francis et al.
patent: 2783326 (1957-02-01), Hanson et al.
patent: 3235498 (1966-02-01), Waldmann
patent: 3620290 (1971-11-01), Kress et al.
patent: 3850827 (1974-11-01), Zipf
patent: 3933659 (1976-01-01), Lyle et al.
patent: 4105571 (1978-08-01), Shaub et al.
patent: 4154473 (1979-05-01), Alexander et al.
patent: 4167486 (1979-09-01), Rowe
patent: 4175047 (1979-11-01), Schick et al.
patent: 4304678 (1981-12-01), Schick et al.
patent: 4336149 (1982-06-01), Erdman
patent: 4376056 (1983-03-01), Erdman
patent: 4440660 (1984-04-01), van Rijas et al.
patent: 4459223 (1984-07-01), Shaub et al.
patent: 4617134 (1986-10-01), Shaub
patent: 4683069 (1987-07-01), Brewster et al.
patent: 4734211 (1988-03-01), Kennedy
patent: 5064546 (1991-11-01), Dasai

Affiliated with

Also associated with

Rating

Fuel economy additive and lubricant composition containing same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fuel economy additive and lubricant composition containing same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fuel economy additive and lubricant composition containing same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1171237