Compressor
AssigneesLG Electronics Inc., Seoul National University R&D Foundation
InventorsEunsoo Yang, Bumdong Sa, Byeongchul Lee, Eunsoo Park, Wookha Ryu
Life of this patent
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Abstract
A lubricating layer having wear resistance and reliability on the wear resistance, and a compressor including a lubricating layer are provided. The compressor may include a lubricating layer coated on a frictional portion between a rotational shaft and a bearing. The lubricating layer may include at least one metal phase selected from a group consisting of Titanium (Ti); and Copper (Cu), Cobalt (Co), Nickel (Ni), and Zirconium (Zr), and may be a composite structure of amorphous and nanocrystalline materials.
Claims14
A compressor, comprising:
- a lubricating layer coated either on a rotational shaft or a bearing configured to rotate relatively with respect to the rotational shaft, wherein the lubricating layer includes:
- Titanium (Ti);
- and
- at least one metal phase selected from a group consisting of Copper (Cu), Cobalt (Co), Nickel (Ni), and Zirconium (Zr), wherein the lubricating layer has a composite structure of amorphous and nanocrystalline materials, and wherein an atomic ratio of the Ti and the Cu is Ti:Cu=75.6:24.4 at. % to Ti:Cu=55:45 at. % to form the amorphous material when the lubricating layer includes the Cu, an atomic ratio of the Ti and the Co is Ti:Co=83:17 at. % to Ti:Co=24.2:75.8 at. % to form the amorphous material when the lubricating layer includes the Co, and an atomic ratio of the Ti and the Ni is Ti:Ni=82:18 at. % to Ti:Ni=49:61 at. % to form the amorphous material when the lubricating layer includes the Ni.
A compressor, comprising:
- a drive including a rotational shaft;
- a compression mechanism, wherein a drive force is transferred by the rotational shaft from the drive to the compression mechanism to compress a refrigerant;
- at least one bearing that supports the rotational shaft;
- and
- at least one lubricating layer provided either on the rotational shaft or the at least one bearing configured to rotate relatively with respect to the rotational shaft, wherein the lubricating layer includes:
- Titanium (Ti);
- and
- at least one metal phase selected from a group consisting of Copper (Cu), Cobalt (Co), Nickel (Ni), and Zirconium (Zr), and wherein an atomic ratio of the Ti and the Cu is Ti:Cu—75.6:24.4 at. % to Ti:Cu=55:45 at. % to form an amorphous and nanocrystalline material when the lubricating layer includes the Cu, an atomic ratio of the Ti and the Co is Ti:Co=83:17 at. % to Ti:Co=24.2:75.8 at. % to form the amorphous material when the lubricating layer includes the Co, and an atomic ratio of the Ti and the Ni is Ti:Ni=82:18 at. % to Ti:Ni=49:61 at. % to form the amorphous material when the lubricating layer includes the Ni.
Dependencies are inferred from the claim text.