Compressor

Patent metadata

Field	Value
Publication number	US-2016341249-A1
Application number	US-201615156418-A
Country	US
Kind code	A1
Filing date	May 17, 2016
Priority date	May 18, 2015
Publication date	Nov 24, 2016
Grant date	—

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.

First claim

What is claimed is:

1 . A compressor, comprising:
a lubricating layer coated on a frictional portion between a rotational shaft and a bearing, wherein the lubricating layer includes at least one metal phase selected from a group consisting of Titanium (Ti); and Copper (Cu), Cobalt (Co), Nickel (Ni), and Zirconium (Zr), and has a composite structure of amorphous and nanocrystalline materials.

2 . The compressor of claim 1 , wherein the lubricating layer includes Cu, and a 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.

3 . The compressor of claim 1 , wherein the lubricating layer includes Cu, and a ratio of the Ti and the Cu is Ti:Cu=83.17 at. % to Ti:Co=24.2:75.8 at. % to form the amorphous material.

4 . The compressor of claim 1 , wherein the lubricating layer includes Ni, and a ratio of the Ti and the Ni is Ti:Ni=82:18 at. % to Ti:Ni=49:61 at. % to form the amorphous material.

5 . The compressor of claim 1 , wherein an elastic strain ratio of the amorphous material is above about 1.5%.

6 . The compressor of claim 1 , wherein the lubricating layer further includes (CH3)4Si (tetra methyl silane, TMS).

7 . The compressor of claim 1 , herein the lubricating layer further includes Molybdenum (Mo).

8 . The compressor of claim 1 , wherein the nanocrystalline material further includes at least one of Nitrogen (N) or Carbon (C), and wherein the N forms Ti nitride along with the Ti, and the C forms Ti carbide along with the Ti.

9 . The compressor of claim 8 , wherein the Ti nitride it includes TiN, and the Ti carbide includes TiC.

10 . The compressor of claim 1 , wherein the nanocrystalline material further includes Nitrogen (N) and Carbon (C), and wherein the N and C forms TiNC along with the Ti.

11 . The compressor of claim 1 , wherein a base material coated with the lubricating layer includes at least one of an alloy containing steel, cast iron, aluminium, or an alloy containing magnesium.

12 . The compressor of claim 1 , wherein the amorphous and the nanocrystalline materials are sequentially deposited on a base material.

13 . A compressor, comprising:
a drive including a rotational shaft; a compressor mechanism, wherein a drive force is transferred by the rotational shaft from the drive to the compression mechanism to compress a refrigerant; at east one bearing that supports the rotational shaft: and at least one lubricating layer provided between the rotational shaft and the at least one bearing, wherein the lubricating layer includes at least one metal phase selected from a group consisting of Titanium (Ti); and Copper (Cu), Cobalt (Co), Nickel (Ni), and Zirconium (Zr), and has a composite structure of amorphous and nanocrystalline materials.

14 . The compressor of claim 13 , wherein the lubricating layer includes Cu, and a 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.

15 . The compressor of claim 13 , wherein the lubricating layer includes Co, and a ratio of the Ti and the Co is Ti:Cc=83:17 at. % to Ti:Co=24.2:75.8 at. % to form the amorphous material.

16 . The compressor of claim 13 , wherein the lubricating layer includes Ni and a ratio of the Ti and the Ni is Ti:Ni=82.18 at. % to Ti:Ni=49:61 at. % to form the amorphous material.

17 . The compressor of claim 13 , wherein the nanocrystalline material further includes at least one of Nitrogen (N) or Carbon (C), and wherein the N forms Ti nitride along with the Ti, and the C forms Ti carbide along with the Ti.

18 . The compressor of claim 13 , wherein the nanocrystalline material further includes Nitrogen (N) and Carbon (C), and wherein the N and C forms TiNC along with the Ti.

19 . The compressor of claim 13 , herein the compressor is a scroll compressor.

20 . The compressor of claim 13 , wherein the compressor is a rotary compressor.

Assignees

• Lg Electronics Inc
• Univ Seoul Nat R & Db Found

Inventors

• Yang Eunsoo
• Sa Bumdong
• Lee Byeongchul
• Park Eunsoo
• RYU Wookha

Classifications

• F25B31/026

  with compressor of rotary type · CPC title

• F04C29/02 Primary

  Lubrication (of machines or engines in general F01M); Lubricant separation (separation in general B01D) · CPC title

• F16C33/121

  Use of special materials · CPC title

• F25B31/002

  Lubrication · CPC title

• F04C23/008

  Hermetic pumps · CPC title