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US 12,297,832 B2Granted
Compressor with chromium nitride and titanium nitride layers
AssigneeCarrier Japan Corporation
InventorsNorihisa Watanabe, Shohei Atobe
Life of this patent
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Abstract
A compressor of an embodiment includes a compression mechanism part that compresses a refrigerant in a sealed container. The compression mechanism part includes Cr and includes a first member and a second member which slidingly move relative to each other. The first member has a chromium layer and a nitride layer formed on a base member surface in this order. The nitride layer includes CrN and TiN. Carbide is deposited on a surface of the second member.
Claims4
A compressor comprising a compression mechanism part that compresses a refrigerant in a sealed container, wherein
- the compression mechanism part includes a first member and a second member which slidingly move relative to each other,
- the first member has a chromium layer and a nitride layer formed on a base member surface in this order,
- the nitride layer includes CrN and TiN,
- carbide is deposited on a surface of the second member, and
- a region having CrN greater than TiN and a region having TiN greater than CrN are alternately present in a thickness direction of the nitride layer.
2 more elements
Dependencies are inferred from the claim text.