Mobile compressed foam firefighting system

A mobile compressed foam firefighting unit comprising:

• a mixing chamber, an outlet of the mixing chamber connected to a foam feeder for providing foam to the seat of a fire;
• a water supply system comprising a water pump and a water pump drive connected by pipes to an inlet of the mixing chamber,
• a foam concentrate supply system comprising a foam pump and a foam pump drive connected by pipes to an inlet of the mixing chamber, and
• an air supply system comprising an air compressor and an air compressor drive connected by pipes to an inlet of the mixing chamber;
• wherein the firefighting unit comprises:
• a drive motor;
• a water flow meter, a throttle valve with an electric drive, a check valve, and an electronic control unit of the throttle valve installed in a water supply pipe between the water pump and the mixing chamber;
• input of the electronic control unit of the throttle valve is electrically connected with output of the water flow meter, and the output of the electronic control unit of the throttle valve is electrically connected with the input of the electric drive of the throttle valve;
• the air compressor drive comprises a variable hydraulic transmission, and the foam pump drive comprises a variable hydraulic transmission;
• and
• the variable hydraulic transmission of the air compressor drive and the variable hydraulic transmission of the foam pump drive are kinetically connected to the drive motor.