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US 11,987,721 B2Granted
Heat-shielding member
AssigneeNissan Motor Co., Ltd.
InventorsYuka Suzuki, Yutaka Mabuchi, Takuma Suzuki, Junichi Arai
Life of this patent
Estimating the term…
Abstract
A heat shielding member includes a base, and a heat shielding membrane on the base. The heat shielding membrane includes a porous layer including at least a closed pore. The porous layer includes resin and carbon-based filler. The heat shielding member has both of low thermal conductivity and low heat capacity and improves the fuel economy performance.
Claims21
A heat shielding member, comprising:
- a base made of a material selected from the group consisting of aluminum, magnesium, iron, and alloys thereof;
- and
- a heat shielding membrane on the base, wherein the heat shielding membrane comprises, in a direction away from the base:
- a porous layer including a plurality of pores that are sealed so as not to communicate with a surface of the heat shielding membrane,
- a dense layer, and
- a heat-resistant layer located at an outermost surface of the heat shielding membrane opposite the base, the heat-resistant layer comprising an inorganic membrane containing silica as a main component, wherein:
- the porous layer and the dense layer each comprise a resin and a carbon-based filler,
- the resin comprises a polyimide resin, and
- a thermal decomposition temperature of the resin is 350° C. or more.
6 more elements
A heat shielding member, comprising:
- a base made of a material selected from the group consisting of aluminum, magnesium, iron, and alloys thereof;
- and
- a heat shielding membrane on the base, wherein the heat shielding membrane comprises, in a direction away from the base:
- a porous layer including a plurality of pores that are sealed so as not to communicate with a surface of the heat shielding membrane,
- a dense layer, and
- a heat-resistant layer located at an outermost surface of the heat shielding membrane opposite the base, the heat-resistant layer comprising an amorphous-carbon-based membrane, wherein:
- the porous layer and the dense layer each comprise a resin and a carbon-based filler,
- the resin comprises a polyimide resin, and
- a thermal decomposition temperature of the resin is 350° C. or more.
6 more elements
Dependencies are inferred from the claim text.