Abstract: A modular valve system (10) to be mounted to a support, in particular a support in an electric control cabinet, comprises at least two individual valve modules (12) which can be fluidly connected to each other and to which at least one control valve unit (16) can be coupled in each case. The modular valve system (10) includes a process fluid section (90) comprising process fluid lines (78) through which a process fluid can flow, a control fluid section (32) comprising control fluid lines in at least some of the valve modules (12) through which a control fluid can flow, and a membrane (80) which is shared by at least some of the valve modules (12) and designed for controlling the process fluid in the process fluid section (90) while forming membrane valves (50) and for sealing off the control fluid section.

Abstract: A modular valve system (10) to be mounted to a support, in particular a support in an electric control cabinet, comprises at least two individual valve modules (12) which can be fluidly connected to each other and to which at least one control valve unit (16) can be coupled in each case. The modular valve system (10) includes a process fluid section (90) comprising process fluid lines (78) through which a process fluid can flow, a control fluid section (32) comprising control fluid lines in at least some of the valve modules (12) through which a control fluid can flow, and a membrane (80) which is shared by at least some of the valve modules (12) and designed for controlling the process fluid in the process fluid section (90) while forming membrane valves (50) and for sealing off the control fluid section.

Abstract: The invention relates to a high pressure injection system having a fuel tank, a connection line between the fuel tank and a high pressure pump for sealing the fuel, wherein the high pressure pump is connected to at least one fuel injection valve via a corresponding connection line. According to the invention, at least a partial volume of the fuel sealed in the high pressure pump is fed back to the fuel tank from said fuel injection valve by leakage in the fuel injection valve via a return line connected to the fuel tank. An essential characteristic of the invention is that the high pressure injection system comprises a cooling line that connects the fuel tank or the low pressure region to the high pressure or a return of the high pressure pump via a mixing point with the return line. It is thereby possible to cool the fuel in the return lines between the fuel injection valve and the fuel tank.

Abstract: A method and a device for controlling an internal combustion engine are described. At least one injector meters a certain fuel quantity to the internal combustion engine at a certain point in time on the basis of a first signal and/or a second signal. At least the first and/or the second signal is/are corrected using a correction value. The correction value is adapted on the basis of at least one information value which is provided by at least one compensation procedure.

Abstract: The invention relates to a fuel injection system for a multi-cylinder internal combustion engine having a first high-pressure accumulator and having a second high-pressure accumulator. The fuel injection system also has a high-pressure pump, wherein the first and the second high-pressure accumulators have a number of ports for injector supply lines corresponding to the number of cylinders of the internal combustion engine. A damping volume for damping pressure pulsations between the high-pressure accumulators and the high-pressure pump is integrated into one of the high-pressure accumulators.

Abstract: The invention relates to a fuel injection system for a multi-cylinder internal combustion engine having a first high-pressure accumulator and having a second high-pressure accumulator. The fuel injection system also has a high-pressure pump, wherein the first and the second high-pressure accumulators have a number of ports for injector supply lines corresponding to the number of cylinders of the internal combustion engine. A damping volume for damping pressure pulsations between the high-pressure accumulators and the high-pressure pump is integrated into one of the high-pressure accumulators.

Abstract: A device and a method for determining pressure fluctuations in a fuel supply system provide two signal filters to enable determining as much information about pressure fluctuations as possible with minimal sensor use. A sensor signal which is characteristic of a pressure in the area of a fuel injector is filtered using the two filters, which have filter characteristics that differ from one another.

Abstract: A device and a method for determining pressure fluctuations in a fuel supply system provide two signal filters to enable determining as much information about pressure fluctuations as possible with minimal sensor use. A sensor signal which is characteristic of a pressure in the area of a fuel injector is filtered using the two filters, which have filter characteristics that differ from one another.