Abstract: A power converter includes an apparatus for enclosing a power unit, which is at least partially inside and/or on a heat sink, and for centering a control unit with respect to the power unit. The power unit includes a semiconductor component and a substrate. The apparatus includes a frame designed to at least partially, preferably completely, surround the substrate, two protruding pieces of a first type designed to engage in a recess or an opening in a heat sink, a protruding piece of a second type designed to engage in a recess or an opening in a control unit, and a fixing element, with at least one of the two protruding pieces of a first type and the fixing element being connected to one another and designed to project in opposite directions. The control unit includes an electronic component and is connected to the power module by the fixing element.

Abstract: In a device for the injection of fuel into the combustion chamber of an internal combustion engine, including an injector nozzle (5) and a nozzle needle (7) which is guided in a longitudinally displaceable manner within the injector nozzle (5) and, for the control of its opening and closing movements, is capable of being pressurized in the axial direction by the pressure prevailing in a control chamber (12) filled with fuel, wherein the control chamber (12) communicates with a supply line (14) and a discharge line (19), and a magnetic control valve (16) is arranged in at least one of the two lines, said magnetic control valve comprising a valve-closing member (25) coupled with an actuating member (21) and pressable against a valve seat (26), and said actuating member (21) being separated from the closing member (25) and the valve seat (26) by a bellows seal (28), the valve-closing member is configured as a valve ball and pressable against a conical valve seat (26).

Abstract: Fuel is conveyed by at least one high-pressure pump from a low-pressure region into a high-pressure region including a pressure-accumulator line consisting of at least two separate accumulator units connected to one another by means of feed lines, and to fuel injectors for the cylinders. The accumulator units each have an accumulator volume for serving at least two cylinders, and accumulator covers provided on both end faces. All the functional units are integrated into these accumulator covers in terms of fuel delivery and transfer, and at least one separate pump accumulator is arranged in the high-pressure region between the high-pressure pump and the assembled pressure-accumulator line. The pump accumulator is connected to at least one accumulator cover of an accumulator unit of the pressure-accumulator line for fuel conveyance and is capable of being acted upon by at least one high-pressure pump.

Abstract: Fuel is conveyed by at least one high-pressure pump from a low-pressure region into a high-pressure region including a pressure-accumulator line consisting of at least two separate accumulator units connected to one another by means of feed lines, and to fuel injectors for the cylinders. The accumulator units each have an accumulator volume for serving at least two cylinders, and accumulator covers provided on both end faces. All the functional units are integrated into these accumulator covers in terms of fuel delivery and transfer, and at least one separate pump accumulator is arranged in the high-pressure region between the high-pressure pump and the assembled pressure-accumulator line. The pump accumulator is connected to at least one accumulator cover of an accumulator unit of the pressure-accumulator line for fuel conveyance and is capable of being acted upon by at least one high-pressure pump.