A pump device for an internal combustion engine, having a high-pressure fuel pump for supplying fuel to a first injection device, having at least one low-pressure inlet, via which the fuel is fed to the high-pressure fuel pump from a low-pressure fuel pump, having at least one low-pressure outlet for conducting the fuel conveyed by the low-pressure fuel pump and fed via the low-pressure inlet to the high-pressure fuel pump out of the high-pressure fuel pump, and having at least one low-pressure port, for conducting fuel conveyed by the low-pressure fuel pump to a second injection device. At least one mixing region mixes the fuel flowing through the low-pressure outlet with fuel fed to the mixing region from the low-pressure fuel pump upstream of the high-pressure fuel pump. The low-pressure port is fluidically connected to the mixing region, and the low-pressure inlet is supplied with fuel from the mixing region.

A pump device for an internal combustion engine, having a high-pressure fuel pump for supplying fuel to a first injection device, having at least one low-pressure inlet, via which the fuel is fed to the high-pressure fuel pump from a low-pressure fuel pump, having at least one low-pressure outlet for conducting the fuel conveyed by the low-pressure fuel pump and fed via the low-pressure inlet to the high-pressure fuel pump out of the high-pressure fuel pump, and having at least one low-pressure port, for conducting fuel conveyed by the low-pressure fuel pump to a second injection device. At least one mixing region mixes the fuel flowing through the low-pressure outlet with fuel fed to the mixing region from the low-pressure fuel pump upstream of the high-pressure fuel pump. The low-pressure port is fluidically connected to the mixing region, and the low-pressure inlet is supplied with fuel from the mixing region.

A pulse free fuel pump device designed to provide smooth, continuous fuel flow without pressure pulses is disclosed. The device includes a housing, a first impeller operating at a relatively low RPM to initiate fuel pressurization, and a second impeller operating at a relatively higher RPM to achieve final high pressure. A stator is positioned between the impellers to stabilize the fuel flow, and a rotor, connected to both impellers via a shaft provides synchronized rotation and reduces pulsation. The device is integrated into a fuel system comprising a fuel tank, a fuel filter, and a high-pressure fuel rail distributing fuel to injectors. The method of operation involves installing the pump in the fuel supply line, connecting it to the turbine's electrical system, and dynamically controlling rotor speed based on fuel demand, ensuring consistent, pulse-free fuel delivery to the combustion chamber.

A pulse free fuel pump device designed to provide smooth, continuous fuel flow without pressure pulses is disclosed. The device includes a housing, a first impeller operating at a relatively low RPM to initiate fuel pressurization, and a second impeller operating at a relatively higher RPM to achieve final high pressure. A stator is positioned between the impellers to stabilize the fuel flow, and a rotor, connected to both impellers via a shaft provides synchronized rotation and reduces pulsation. The device is integrated into a fuel system comprising a fuel tank, a fuel filter, and a high-pressure fuel rail distributing fuel to injectors. The method of operation involves installing the pump in the fuel supply line, connecting it to the turbine's electrical system, and dynamically controlling rotor speed based on fuel demand, ensuring consistent, pulse-free fuel delivery to the combustion chamber.