公开(公告)号：US11433637B2

公开(公告)日：2022-09-06

申请号：US16638684

申请日：2017-08-14

申请人： Nissan Motor Co., Ltd.

发明人： Yuka Suzuki ,  Yutaka Mabuchi ,  Takuma Suzuki ,  Ken Tsutsuji

IPC分类号： B32B3/00 ,  B32B15/088 ,  B32B15/20 ,  C23C28/04 ,  F02F1/00 ,  B32B15/08

摘要： A heat shield component includes a substrate, and a heat shield film arranged on the substrate. The heat shield film includes a first layer arranged on the substrate, including pores, and having a thermal conductivity of 0.3 W/(m·K) or less and a volumetric specific heat of 1200 kJ/(m3·K) or less, and a second layer arranged on the first layer to provide closed pores between the first layer and the second layer. The heat shield film has a surface roughness on a top surface which is 1.5 μm Ra or less. The heat shield component can achieve high heat-insulating properties and an improved effect of reducing the emission amount of hydrocarbon in an internal combustion engine, for example.

公开(公告)号：US20210187909A1

公开(公告)日：2021-06-24

申请号：US16638684

申请日：2017-08-14

申请人： Nissan Motor Co., Ltd.

发明人： Yuka Suzuki ,  Yutaka Mabuchi ,  Takuma Suzuki ,  Ken Tsutsuji

IPC分类号： B32B15/088 ,  B32B15/20 ,  F02F1/00 ,  C23C28/04

摘要： A heat shield component includes a substrate, and a heat shield film arranged on the substrate. The heat shield film includes a first layer arranged on the substrate, including pores, and having a thermal conductivity of 0.3 W/(m·K) or less and a volumetric specific heat of 1200 kJ/(m3·K) or less, and a second layer arranged on the first layer to provide closed pores between the first layer and the second layer. The heat shield film has a surface roughness on a top surface which is 1.5 μm Ra or less. The heat shield component can achieve high heat-insulating properties and an improved effect of reducing the emission amount of hydrocarbon in an internal combustion engine, for example.