A heat shield for shielding of hot areas of a combustion engine. The heat shield has at least one metal sheet layer with a first and a second surface. The at least one metal sheet layer has at least one passage opening for the passage of a fastening element. The layer also has a sleeve which passes through the passage opening. The heat shield further has a decoupling element from flexible material arranged between a circumferential edge of the passage opening and the sleeve. The decoupling element and the sleeve each have a) an annular shank area, which penetrates the passage opening, b) a first collar, which on the first surface extends radially outward relative to the circumferential edge of the passage opening, and c) a second collar, which extends adjacent to the second surface radially outward relative to the circumferential edge of the passage opening.

According to the present invention, a panel-shaped first metal body (2) comprises a space-forming part (2a) and an overlap part (2b) that is continuous with the space-forming part (2a). A panel-shaped second metal body (4) comprises a space-forming part (4a) and an overlap part (4b) that is continuous with space-forming part (4a). When the first metal body (2) and the second metal body (4) have been assembled, a housing space layer (S1) that is for housing a sheet-shaped glass wool material 3 is formed between the space-forming parts (2a, 4a), and the overlap parts (2b, 4b) overlap. A solid joining part (W1) that connects the overlap parts (2b, 4b) is formed between the overlap parts (2b, 4b).

A composite thermal barrier coating (TBC) may be applied to a surface of components within an internal combustion engine. The composite TBC provides low thermal conductivity and low heat capacity insulation that is sealed against combustion gasses. The composite TBC includes three layers, bonded to one another, i.e., a first (bonding) layer, a second (insulating) layer, and a third (sealing) layer. The insulating layer is disposed between the bonding layer and the sealing layer. The bonding layer is bonded to the component and to the insulating layer. The insulating layer includes hollow microspheres that are sintered together to form insulation that provides a low effective thermal conductivity and low effective heat capacity. The sealing layer is a thin film that is configured to resist the high temperatures, present within the engine. The sealing layer is impermeable to gasses and presents a smooth surface.

A composite thermal barrier coating (TBC) may be applied to a surface of components within an internal combustion engine. The composite TBC provides low thermal conductivity and low heat capacity insulation that is sealed against combustion gasses. The composite TBC includes three layers, bonded to one another, i.e., a first (bonding) layer, a second (insulating) layer, and a third (sealing) layer. The insulating layer is disposed between the bonding layer and the sealing layer. The bonding layer is bonded to the component and to the insulating layer. The insulating layer includes hollow microspheres that are sintered together to form insulation that provides a low effective thermal conductivity and low effective heat capacity. The sealing layer is a thin film that is configured to resist the high temperatures, present within the engine. The sealing layer is impermeable to gasses and presents a smooth surface.

A thermal barrier coating for an internal combustion engine includes an insulating thermal spray coating, where a chosen material of the insulating thermal spray coating has a thermal conductivity lower than 2 W/mK in fully dense form and the chosen material includes a coefficient of thermal expansion within 5 ppm/K of a coefficient of thermal expansion of a material of a component of the internal combustion engine upon which the coating is placed.

A thermal barrier coating for an internal combustion engine includes an insulating thermal spray coating, where a chosen material of the insulating thermal spray coating has a thermal conductivity lower than 2 W/mK in fully dense form and the chosen material includes a coefficient of thermal expansion within 5 ppm/K of a coefficient of thermal expansion of a material of a component of the internal combustion engine upon which the coating is placed.

A method for producing an automotive equipment part includes the following steps: arranging a porous layer in a foaming mold; injection, on one side of the porous layer, of a foam precursor; expansion of the precursor material to form a foam base layer bonded to the porous layer; and extraction from the mold of the equipment part including the porous layer and the foam base layer bonded to the porous layer. The method further includes a step for injecting a pressurized fluid on a second side of the porous layer to form a counter-pressure to the expansion of the precursor material.

A method for producing an automotive equipment part includes the following steps: arranging a porous layer in a foaming mold; injection, on one side of the porous layer, of a foam precursor; expansion of the precursor material to form a foam base layer bonded to the porous layer; and extraction from the mold of the equipment part including the porous layer and the foam base layer bonded to the porous layer. The method further includes a step for injecting a pressurized fluid on a second side of the porous layer to form a counter-pressure to the expansion of the precursor material.

A work vehicle includes an engine, a post-processing device, and a cooling fan. The engine is mounted on a front portion of a travelling machine body. The post-processing device purifies exhaust gas of the engine. The cooling fan water-cools the engine. The cooling fan is located in front of the engine. The cooling fan, the engine, and the post-processing device are covered with a hood. The hood includes a shield. The shield covers a lower section of the post-processing device and one side of the engine. The shield is a perforated plate including a plurality of holes.

A barrier ring for a cylinder assembly for an opposed-piston engine fits into a groove fashioned into a portion of the cylinder liner that is adjacent to the top dead center location of the end surfaces of the pistons, in a volume of the cylinder liner that defines the combustion chamber. The barrier ring and groove are part of a barrier assembly that prevents heat generated during combustion from reaching the outer wall of the cylinder assembly, reducing the need for conventional cooling systems and increasing the amount of heat retained in the combustion chamber. The barrier assembly allows for increased engine efficiency because of the combustion heat retained in the combustion chamber, as well as a reduction in the overall size of the engine because of the reduction in engine cooling needed.