发明名称 |
REFRIGERANT COMPRESSOR AND REFRIGERATION CYCLE APPARATUS |
摘要 |
A refrigerant compressor includes a compression unit having a roller and a vane for compressing refrigerant. The vane has a film having first to fourth layers on its metallic base member. The first layer is made of chromium. The second layer is made of chromium and tungsten-carbide. The third layer is made of metal-containing amorphous-carbon containing at least tungsten or tungsten-carbide. The fourth layer is made of non-metal-containing amorphous-carbon containing carbon and hydrogen. In the second layer, chromium content-rate on a first-layer side is larger than on a third-layer side, and tungsten-carbide content-rate on the third-layer side is larger than on the first-layer side. In the third layer, content-rate of the at least tungsten or tungsten-carbide on a second-layer side is larger than on a fourth-layer side. The roller with which an end-edge of the vane slidably-contacts is made of flake graphite cast iron containing molybdenum, nickel and chromium. |
申请公布号 |
US2012174617(A1) |
申请公布日期 |
2012.07.12 |
申请号 |
US201013496660 |
申请日期 |
2010.09.08 |
申请人 |
TOSHIBA CARRIER CORPORATION |
发明人 |
AOKI TOSHIMASA;SATODATE KOJI;TAKASHIMA KAZU |
分类号 |
F25B1/00;F04C18/00;F04C27/00 |
主分类号 |
F25B1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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