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US 9,650,586 B2Granted
Redox couple-based mitigation of fluid-flow-driven electrochemical surface degradation
AssigneeThe Boeing Company
InventorHarold E. Hager
Life of this patent
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Abstract
The present disclosure relates to methods, systems, hydraulic fluids and additives for reducing the rate of surface current degradation for components in a hydraulic system, wherein the hydraulic system is exposed to phosphate-ester-based hydraulic fluid.
Claims23
A method
- for reducing rate of surface current induced degradation for components in hydraulic system components, the hydraulic system having components exposed to phosphate-ester-based hydraulic fluid, the method comprising the step of:
- adding a redox couple to the hydraulic fluid;
- wherein the hydraulic fluid comprising the redox couple is in contact with the hydraulic system.
An hydraulic system comprising:
- a phosphate-ester-based hydraulic fluid, and
- a redox couple.
An hydraulic fluid for use in a hydraulic system, the fluid comprising:
- a phosphate-ester-based compound, and
- a redox couple, said redox couple comprising a metallocene couple.
Dependencies are inferred from the claim text.