Abstract:
Disclosed is a cylinder head for an engine. The cylinder head for an engine includes an insulation coating layer formed on a surface of an intake port surface. The insulation coating layer comprises a polyamideimide resin and an aerogel in the polyamideimide resin, for example, as being dispersed, and the insulation coating layer has a thermal conductivity of 0.60 W/m or less.
Abstract:
Disclosed is a TiAgN coating layer, which is coated by plasma coating method using nitrogen gas, a Ti source and a Ag source, the coating layer comprising Ag in the coating layer at an amount of about 15 at % or more, a TiAgN coating method, and a TiAgN coating apparatus therefor.
Abstract:
Disclosed herein is a low friction coating layer wherein the uniform concentration of a low friction metal in the coating layer is increased by increasing a turning-on power of a low friction metal source to be higher than a turning-off power thereof, decreasing a turning-on power of a Ti source to be lower than a turning-off power thereof. Alternatively the concentration is increased by increasing a flow rate or temperature of a nitrogen atmosphere gas upon introduction to be higher than upon termination of the introduction thereof.
Abstract:
A separator for a fuel cell includes: a metal base material; and a carbon coating layer formed on one surface or both surfaces of the metal base material, in which roughness Ra formed at an interface between the metal base material and the carbon coating layer may be in a range of 20 to 78 nm.
Abstract:
Disclosed are a manufacturing method for a porous thermal insulation coating layer, a porous thermal insulation coating layer with substantially reduced thermal conductivity and volumetric heat capacity and an internal combustion engine including the porous thermal insulation coating layer thereby having excellent durability.
Abstract:
A thermoelectric module mounted on an uneven surface (a curved surface or an irregular surface) to reduce thermal boundary resistance and significantly improve thermoelectric power generation efficiency is provided. The thermoelectric module includes one or more first thermoelectric elements, one or more second thermoelectric elements having opposite polarity to that of the first thermoelectric elements and alternating with the first thermoelectric element. An electrode unit in provided and includes upper and lower electrodes configured to electrically connect the first and second thermoelectric elements. A connection member is configured to connect the first and second thermoelectric elements to vary the relative positions of the first and second thermoelectric elements.
Abstract:
A thermoelectric generator system of an engine is provided and includes an insulating heat protective cover that is mounted within an engine. Additionally, a unit is disposed at an upper end of the heat protective cover to uniformly distribute heat energy to use the heat protective cover mounted at an upper end of an exhaust manifold of the engine to protect a wiring from exhaust heat. Accordingly, heat energy discarded from the exhaust manifold is absorbed to generate electricity using the waste heat discarded from the exhaust manifold without affecting the catalyst to improve the fuel efficiency of the internal combustion engine. Further, heat is transferred by conduction at a particular temperature or greater and heat is transferred by radiation and convection at a temperature less than the particular temperature to increase the efficiency.
Abstract:
A thermoelectric generating system for a vehicle, the thermoelectric generating system includes an engine for producing power, a thermoelectric module for producing electric energy from thermal energy of an exhaust gas generated by the engine, a purifying device for purifying the exhaust gas generated by the engine, and a controller for driving the thermoelectric module when a temperature of the purifying device arrives at a predetermined operational temperature.
Abstract:
Disclosed is a thermal insulation coating composition including: a polymer resin; an aerogel; and an amphiphilic compound including specific functional groups and having a weight average molecular weight of about 200 to about 5000. A thermal insulation coating layer obtained from the thermal insulation coating composition is also provided.