Device for the mixing of fluids

A device (1) for the mixing of fluids comprising:

• at least a first supply line (3) of a first fluid along which at least first valve means (4) are arranged, there being provided first control means (5) able to command an opening/closure of said first valve means (4) to regulate a flow rate of the first fluid itself;
• at least a second supply line (6) of a second fluid along which at least second valve means (7) are arranged, there being provided second control means (8) able to command an opening/closure of said second valve means (7) to regulate a flow rate of the second fluid itself;
• driving means (20) of at least one of said first and second control means (5, 8) able to maintain at least a predefined ratio between the flow rate of said first fluid and the flow rate of said second fluid;
• mixing means (9) of said first and second fluid communicating with said first and said second supply line (3, 6);
• wherein said driving means (20) comprise generation means (21, 22) of an impulsive driving signal (23) by pulses able to open said first valve means (4) and/or said second valve means (7) for an impulsive opening time (T-on) and to close said first valve means (4) and/or said second valve means (7) for an impulsive closure time (T-off), and wherein a ratio between said impulsive opening time (T-on) and said impulsive closure time (T-off) for each of said pulses is constant and said pulses have a variable repetition frequency.