Method of controlling lubricant properties by means of diluting the same
AssigneeShell Oil Company
InventorFrank David Wayne
Life of this patent
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Abstract
A process is provided for controlling two or more properties of a lubricant or working fluid for use in a system in which operating conditions change. The process contains the steps of: (i) providing a base fluid in which the two or more properties are optimal for “warm” operating conditions; (ii) providing a diluent which is miscible with the base fluid under all system operating conditions; and, (iii) reversibly diluting said base fluid with the diluent in response to change in system operating conditions. An apparatus for carrying out the process is also disclosed.
Claims13
A process for controlling at least two properties of a lubricant or working fluid for use in a system in which operating conditions change which process comprises:
- (i) providing a base fluid in which the properties are optimal for “warm” operating conditions;
- (ii) providing a diluent which is miscible with said base fluid under all system operating conditions;
- and
- (iii) reversibly diluting said base fluid with the diluent in response to change in system operating conditions;
- wherein the at least two properties include viscosity and at least one additional property selected from the group consisting of traction coefficient, compressibility, lubricating film thickness and pressure response of viscosity.
Dependencies are inferred from the claim text.