Liquid coolants with dissolved gas for electric systems
AssigneeExxonMobil Technology and Engineering Company
InventorsDavid A. Racke, Andrew D. Satterfield
Life of this patent
Estimating the term…
Abstract
Disclosed are liquid coolants for electric systems and methods of making the same. An example liquid coolant for electric systems may comprise: a base oil, wherein the base oil is a major component of the liquid coolant; and a dissolved gas in an amount sufficient to have a measurable effect on fluid viscosity of the liquid coolant; wherein the liquid coolant has a kinematic viscosity at 100° C. of about 7 cSt or less.
Claims23
A liquid coolant for electric systems, comprising:
- a base oil, wherein the base oil is a major component of the liquid coolant;
- and
- one or more dissolved gases, wherein all of the dissolved gases in the liquid coolant consist of the one or more dissolved gases;
- wherein the total amount of all of the dissolved gases in the liquid coolant is sufficient to reduce the kinematic viscosity at 100° C. of the liquid coolant by at least 2%, as compared to the base oil in the absence of all of the dissolved gases;
- wherein the liquid coolant has a kinematic viscosity at 100° C. of about 7 cSt or less;
- and
- wherein the total amount of all of the dissolved gases in the liquid coolant is about 0.2 grams per Liter (g/L) of the liquid coolant to about 5 g/L of the liquid coolant.
A method of producing a liquid coolant, the method comprising:
- introducing a base oil into a container;
- and
- pressuring the container with one or more gases such that a volume of the one or more gases dissolves into the base oil to provide the liquid coolant, wherein the liquid coolant comprises the base oil and the one or more dissolved gases, wherein the base oil is a major component of the liquid coolant, and wherein all of the dissolved gases in the liquid coolant consist of the one or more dissolved gases;
- wherein the total amount of all of the dissolved gases in the liquid coolant is sufficient to reduce the kinematic viscosity at 100° C. of the liquid coolant by at least 2%, as compared to the base oil in the absence of all of the dissolved gases;
- wherein the liquid coolant has a kinematic viscosity at 100° C. of about 7 cSt or less;
- and
- wherein the total amount of all of the dissolved gases in the liquid coolant is about 0.2 grams per Liter (g/L) of the liquid coolant to about 5 g/L of the liquid coolant.
A method of cooling an electric system, comprising:
- circulating a liquid coolant into a contact with one or more components of the electric system, thereby cooling the one or more components, wherein the liquid coolant comprises:
- a base oil, wherein the base oil is a major component of the liquid coolant;
- and
- one or more dissolved gases, wherein all of the dissolved gases in the liquid coolant consist of the one or more dissolved gases;
- wherein the total amount of all of the dissolved gases in the liquid coolant is sufficient to reduce the kinematic viscosity at 100° C. of the liquid coolant by at least 2%, as compared to the base oil in the absence of all of the dissolved gases;
- wherein the liquid coolant has a kinematic viscosity at 100° C. of about 7 cSt or less;
- and
- wherein the total amount of all of the dissolved gases in the liquid coolant is about 0.2 grams per Liter (g/L) of the liquid coolant to about 5 g/L of the liquid coolant.
Dependencies are inferred from the claim text.