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AssigneeChevron U.S.A. Inc.
InventorsJames N. Ziemer, Susan M. Abernathy, John M. Rosenbaum, Stephen J. Miller, Mark E. Okazaki
Estimating the term…
This invention is directed to a method of operating a wormgear drive at high energy efficiency comprising filling an oil reservoir with a wormgear lubricant comprising an isomerized Fischer-Tropsch derived distillate fraction having a low traction coefficient and operating the wormgear drive with the filled oil reservoir at an equilibrium temperature between 20 and 225 degrees C. This invention is also directed to a process for reducing the traction coefficient of a higher-traction coefficient lubricating base oil by blending it with an isomerized Fischer-Tropsch derived distillate fraction. This invention is also directed to a wormgear lubricant comprising an isomerized Fischer-Tropsch distillate fraction and between 2 and 50 weight percent thickener.
A method of operating a wormgear drive at high energy efficiency, comprising:
A process for reducing the traction coefficient of a higher-traction coefficient lubricating base oil having a traction coefficient greater than 0.024 when measured at a kinematic viscosity of 15 cSt and at a slide to roll ratio of 40 percent, comprising:
A wormgear lubricant comprising:
Dependencies are inferred from the claim text.