Abstract: A spark plug (1) for internal combustion engines has a center electrode (6) arranged along a central axis (2) of the spark plug (1), which electrode (6) is enclosed by an insulator (5) at least in portions, and a housing (9) in which the insulator (5) is received, at least in portions. A gap (20) is formed, at least in portions, between the insulator (5) and the housing (9). The gap (20) is at least partially filled with a material (23) having a thermal conductivity (?)?1 W/(m*K).

Abstract: The present invention relates to a load control device for an engine and to a method for controlling the load. The load control device comprises a compressor for compressing air in an intake system of the engine; an exhaust gas line for discharging an exhaust gas mass flow from the engine; a turbine that is driven by an exhaust gas mass flow supplied by the exhaust gas line and that drives the compressor; a bypass line that branches off the exhaust gas line upstream of the turbine, wherein a first valve is disposed in the bypass line for controlling the mass flow in the bypass line; and an active cooling device that is disposed upstream of the valve.

Abstract: A piston for an internal combustion engine is provided. The piston has a surface on the combustion side, wherein a depression having a depression edge and a depression floor is arranged in the surface and the depression has a maximum depth of tmax in an axial direction of the piston, measured from the combustion side surface. The combustion side surface furthermore has at least one protrusion that is arranged on a section of the depression edge and has a depth taus, wherein the depth taus of the protrusion is smaller than the depth of the depression tmax in the axial direction of the piston.