IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
|
| 국제특허분류(IPC7판) |
|
| 출원번호 |
US-0210663
(2011-08-16)
|
| 등록번호 |
US-8425796
(2013-04-23)
|
| 우선권정보 |
JP-2005-330835 (2005-11-15) |
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발명자
/ 주소 |
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| 출원인 / 주소 |
|
| 대리인 / 주소 |
Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
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| 인용정보 |
피인용 횟수 :
0 인용 특허 :
22 |
초록
▼
Provided is a refrigerating machine oil which contains a base oil mainly containing at least one substance selected from the group consisting of a mineral oil, a synthetic alicyclic hydrocarbon compound, and a synthetic aromatic hydrocarbon compound and having a kinematic viscosity at 40° C. of 1 to
Provided is a refrigerating machine oil which contains a base oil mainly containing at least one substance selected from the group consisting of a mineral oil, a synthetic alicyclic hydrocarbon compound, and a synthetic aromatic hydrocarbon compound and having a kinematic viscosity at 40° C. of 1 to 8 mm2/s. The refrigerating machine oil is applied to refrigerators including a sliding part formed of an engineering plastic or including an organic coating film or an inorganic coating film. The refrigerating machine oil enables to improve energy-saving performance due to its low viscosity, has a low frictional coefficient and good sealing property, and is suitably used in various refrigeration applications, especially in closed-type refrigerators.
대표청구항
▼
1. A method of lubricating a sliding part formed from an engineering plastic or comprising an organic coating film or an inorganic film in a refrigerator, comprising contacting the sliding part with a refrigerating machine oil, wherein the refrigerating machine oil comprises a base oil which contain
1. A method of lubricating a sliding part formed from an engineering plastic or comprising an organic coating film or an inorganic film in a refrigerator, comprising contacting the sliding part with a refrigerating machine oil, wherein the refrigerating machine oil comprises a base oil which contains a mineral oil as a main component, wherein the base oil has a kinematic viscosity at 40° C. of 1 to 3.12 mm2/s, andthe refrigerator uses a hydrocarbon-based refrigerant. 2. The method of claim 1, wherein the base oil has a molecular weight of 140 to 660. 3. The method of claim 1, wherein the base oil has a flash point of 100° C. or higher. 4. The method of claim 1, wherein the refrigerating machine oil comprises at least one additive selected from the group consisting of an extreme-pressure agent, an oiliness agent, an antioxidant, an acid scavenger and an antifoaming agent. 5. The method of claim 1, wherein the organic coating film on the sliding part of the refrigerator comprises a polytetrafluoroethylene coating film, a polyimide coating film, or a polyamide-imide coating film. 6. The method of claim 1, wherein the inorganic coating film on the sliding part of the refrigerator comprises a graphite film, a diamond-like carbon film, a tin film, a chromium film, a nickel film, or a molybdenum film. 7. The method of claim 1, wherein the sliding part has an organic coating film, and the organic coating film comprises a polytetrafluoroethylene coating film, a polyimide coating film or a polyamide-imide coating film. 8. The method of claim 1, wherein the sliding part has an inorganic coating film, wherein the inorganic coating film comprises a graphite film, a diamond-like carbon film, a tin film, a chromium film, a nickel film or a molybdenum film. 9. The method of claim 1, wherein the base oil has a kinematic viscosity at 40° C. of 1 to 2.86 mm2/s. 10. The method of claim 1, wherein the hydrocarbon-based refrigerant is isobutane. 11. The method of claim 1, wherein the content of mineral oil in the base oil is 90 mass % or more. 12. The method of claim 1, wherein the base oil further contains at least one selected from the group consisting of a hydrogenation products of an a-olefin oligomer, polyvinyl ethers, polyoxyalkylene glycol derivatives, and ether compounds.
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