Abstract: The invention relates to a pump unit for feeding fuel, preferably diesel fuel, to an internal combustion engine, comprising at least one cylinder (14), a piston (15) which is displaceably arranged in the cylinder (14), and a pressure valve (30) for selectively controlling the supply of fuel to the internal combustion engine, wherein the pressure valve (30) has a closure part (38, 46, 51) provided with a cavity (44, 49, 53) that opens to the outside on an end surface (43, 48, 52) facing the piston (15) of the closure part (38, 46, 51).

Abstract: The invention relates to a pump unit for feeding fuel, preferably diesel fuel, to an internal combustion engine, comprising at least one cylinder (14), a piston (15) which is displaceably arranged in the cylinder (14), and a pressure valve (30) for selectively controlling the supply of fuel to the internal combustion engine, wherein the pressure valve (30) has a closure part (38, 46, 51) provided with a cavity (44, 49, 53) that opens to the outside on an end surface (43, 48, 52) facing the piston (15) of the closure part (38, 46, 51).

Abstract: The invention relates to a device for the regeneration, temperature loading and/or thermal management of a component, assigned to an exhaust system, of an internal combustion engine. The device includes at least one injection valve which injects a fluid, in particular fuel, into the exhaust system, preferably in chatter mode, for example as a function of the pressure of the supplied fluid. The injection valve has a valve head and a valve seat which have geometries designed in such a way that a fluidic force of the supplied fluid acting on the injection valve drops continuously over a stroke of the valve head. The invention also relates to an injection valve having such valve-head and valve-seat geometries and to a corresponding method for the regeneration, temperature loading and/or thermal management of a component, assigned to an exhaust system, of an internal combustion engine.

Abstract: The invention relates to a device for the regeneration, temperature loading and/or thermal management of a component, assigned to an exhaust system, of an internal combustion engine. The device includes at least one injection valve which injects a fluid, in particular fuel, into the exhaust system, preferably in chatter mode, for example as a function of the pressure of the supplied fluid. The injection valve has a valve head and a valve seat which have geometries designed in such a way that a fluidic force of the supplied fluid acting on the injection valve drops continuously over a stroke of the valve head. The invention also relates to an injection valve having such valve-head and valve-seat geometries and to a corresponding method for the regeneration, temperature loading and/or thermal management of a component, assigned to an exhaust system, of an internal combustion engine.

Abstract: A sheathed element glow plug includes an integrated combustion chamber pressure sensor for a self-igniting internal combustion engine for measuring combustion chamber pressures, in particular for combustion chamber signal-based engine control. The sheathed element glow plug has a heating element and a glow plug housing, as well as a glow plug axis. The glow plug housing has a receptacle area for receiving the heating element, a housing body, and at least one flexibility area situated between the housing body and the receptacle area. At least one force measuring element is installed in the glow plug housing.

Abstract: A fuel injection apparatus having a high-pressure fuel pump and a fuel injection valve for each cylinder. An electrically actuated control valve controls a connection of the pump working chamber to a discharge region. A first injection valve element controls at least one first injection opening and a second injection valve element guided inside the first injection valve element controls at least one second injection opening. Pressure in a control chamber acts on the second injection valve element at least indirectly in the closing direction. By means of a connection controlled by a valve, the control pressure chamber is connected to a pressure region in which a respective pressure increase and decrease are delayed in relation to pressure in the pump working chamber when the control valve respectively closes and opens. The valve is acted on in the opening direction by the pressure prevailing in the pressure region and the closing direction by the pressure prevailing in the pump working chamber.

Abstract: A fuel injection apparatus having a high-pressure fuel pump and a fuel injection valve for each cylinder. An electrically actuated control valve controls a connection of the pump working chamber to a discharge region. A first injection valve element controls at least one first injection opening and a second injection valve element guided inside the first injection valve element controls at least one second injection opening. Pressure in a control chamber acts on the second injection valve element at least indirectly in the closing direction. By means of a connection controlled by a valve, the control pressure chamber is connected to a pressure region in which a respective pressure increase and decrease are delayed in relation to pressure in the pump working chamber when the control valve respectively closes and opens. The valve that is acted on in the opening direction by the pressure prevailing in the pressure region and in the closing direction by the pressure prevailing in the pump working chamber.