Refrigerating machine oil, working fluid composition for refrigerating machine, lubricating method, and method for producing refrigerating machine oil
US-2022411710-A1 · Dec 29, 2022 · US
Lubricant composition
US11946013B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11946013-B2 |
| Application number | US-202117792362-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 15, 2021 |
| Priority date | Jan 15, 2020 |
| Publication date | Apr 2, 2024 |
| Grant date | Apr 2, 2024 |
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Abstract
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A lubricating oil composition which contains a base oil and a fluorine compound and may have improved cooling performance. The base oil may contain a mineral oil. The base oil may have a kinematic viscosity in a range of from 1 to 25 mm2/s at 40° C. The content of the fluorine compound may be in a range of from 3 to 30% by weight based on the total amount of the composition.
First claim
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The invention claimed is: 1. A lubricating oil composition suitable for cooling an electric vehicle apparatus the composition comprising: a base oil; and a fluorine compound, wherein the base oil comprises a mineral oil, wherein the base oil has a kinematic viscosity at 40° C. in a range of from 1 to 5 mm 2 /s, and wherein the fluorine compound is present in a range of from 3 to 15 wt. %, based on total composition weight. 2. The composition of claim 1 , wherein the base oil has a flash point of 60° C. or higher. 3. The composition of claim 1 , wherein the base oil is a mineral oil. 4. The composition of claim 1 , wherein 70% by weight or more of the base oil is a mineral oil. 5. The composition of claim 1 , wherein the fluorine compound comprises a hydrochlorofluorocarbon, hydrofluorocarbon, hydrofluoroether, or a mixture of two or more of any of these. 6. The composition of claim 1 , wherein the fluorine compound has a boiling point in a range of from 40° C. to 150° C. 7. An apparatus configured for an electric vehicle, the apparatus comprising the composition of claim 1 . 8. A motor, a battery, an inverter, an engine, or a transmission of an electric vehicle, comprising the composition of claim 1 . 9. A cooling device configured for an electric vehicle cooling apparatus, the device comprising the composition of claim 1 . 10. The composition of claim 1 , wherein the base oil is a combination of a mineral oil with at least one of synthetic oil selected from a naphthenic compound, a polyolefin compound, an aromatic compound, an ether compound, an ester compound, and a glycol compound. 11. The composition of claim 1 , wherein the base oil comprises: a mineral oil, and a naphthenic compound, a polyolefin compound, an aromatic compound, an ether compound, an ester compound, and/or a glycol compound. 12. A method of cooling an apparatus of an electric vehicle, the method comprising: contacting the apparatus and the composition of claim 1 . 13. The method of claim 12 , wherein the apparatus is a motor, a battery, an inverter, an engine, or a transmission of the electric vehicle. 14. The composition of claim 1 , having a kinematic viscosity at 40° C. in a range of from 1.80 to 5 mm 2 /s. 15. The composition of claim 1 , having a kinematic viscosity at 40° C. in a range of from 1.80 to 2.69 mm 2 /s. 16. The composition of claim 1 , having a kinematic viscosity at 40° C. in a range of from 1.80 to 2.03 mm 2 /s. 17. The composition of claim 1 , having a kinematic viscosity at 40° C. in a range of from 1 to 2.03 mm 2 /s. 18. The composition of claim 1 , wherein the fluorine compound is present in a range of from 5 to 15 wt. %, based on the total composition weight. 19. The composition of claim 16 , wherein the fluorine compound is present in a range of from 5 to 15 wt. %, based on total composition weight. 20. The composition of claim 1 , having a viscosity index in a range of from 7 to less than 40.
Assignees
Inventors
Classifications
- C10M131/04Primary
aliphatic · CPC title
Petroleum fractions · CPC title
- C10M169/04Primary
Mixtures of base-materials and additives · CPC title
used as base material · CPC title
aliphatic · CPC title
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- What does patent US11946013B2 cover?
- A lubricating oil composition which contains a base oil and a fluorine compound and may have improved cooling performance. The base oil may contain a mineral oil. The base oil may have a kinematic viscosity in a range of from 1 to 25 mm2/s at 40° C. The content of the fluorine compound may be in a range of from 3 to 30% by weight based on the total amount of the composition.
- Who is the assignee on this patent?
- Idemitsu Kosan Co
- What technology area does this patent fall under?
- Primary CPC classification C10M131/04. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Apr 02 2024 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 7 related publications on this page (citations in our corpus or others sharing the same primary CPC).