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1. (WO2018125956) LOW VISCOSITY LUBRICATING OIL COMPOSITIONS FOR TURBOMACHINES

Pub. No.:    WO/2018/125956    International Application No.:    PCT/US2017/068630
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Fri Dec 29 00:59:59 CET 2017
IPC: C10M 171/02
Applicants: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
Inventors: GIBSON, Meredith, R.
GALIANO-ROTH, Angela, S.
PRINCE, Jessica, L.
WARDLOW, Andrea, B.
Title: LOW VISCOSITY LUBRICATING OIL COMPOSITIONS FOR TURBOMACHINES
Abstract:
This disclosure relates to a low viscosity lubricating turbine oil having a composition comprising a lubricating oil base stock, as a major component, and one or more lubricating oil additives, as minor components. The lubricating turbine oil has a kinematic viscosity of about 16 cSt to about 22 cSt at 40°C, a density of about 0.8 g/ml to about 0.9 g/ml, and an absolute evaporation loss at 150°C of less than about 4%. This disclosure also relates to a method for improving energy efficiency in a turbomachine lubricated with the low viscosity lubricating turbine oil. This disclosure further relates to a method for improving energy efficiency while maintaining or improving deposit control and lubricating oil additive solvency in a turbomachine lubricated with the low viscosity lubricating turbine oil. This disclosure yet further relates to a method for improving solubility, compatibility and dispersancy of polar additives in the low viscosity lubricating turbine oil.