Pressure-regulating device for a fuel consumption measurement system and fuel consumption measurement system

A pressure-regulating device for a fuel consumption measurement system, the pressure-regulating device comprising:

• a fuel supply line which is configured to be connected to a consumer and via which a fuel is suppliable to the consumer;
• a fuel return line via which the fuel is returnable;
• a bypass line comprising a branch which branches off from the fuel supply line, the bypass line being configured to fluidically connect the fuel supply line to the fuel return line and to feed the fuel from the fuel supply line to the fuel return line while bypassing the consumer;
• a pressure regulator which is configured to set a free flow cross-section in the bypass line;
• a pressure sensor arranged at the fuel supply line downstream of where the branch of the bypass line branches off from the fuel supply line, the pressure sensor being configured to provide pressure measurement values;
• a control unit which is electrically connected to the pressure sensor, the control unit being configured to regulate the pressure regulator depending on the pressure measurement values of the pressure sensor;
• and
• an unregulated pressure-reducing element arranged in the fuel supply line upstream of the pressure sensor and downstream of the branch of the bypass line.