The use of the micronozzles configuration allows for:

• Very low machine cost (stator and rotor obtained through chemical etching).

• Compatibility with fluids of any nature (insensitive to impurities in the inlet air and a maximum diameter of solid particles dragged in the order of the stator nozzle passages).

• Absence of vibrations (there is no blade/fluid passage alternation).

• Very low rotor wear (the difference in fluid-rotor speeds is low).

• Maximum torque at startup, increasing as speed decreases.

• Reversibility of the machine's rotation direction by alternating stators with opposite directions as needed.

• Modular machine design: the required power (torque) can be obtained by varying the number of rotor discs.

• Insensitivity to variations in the inlet pressure: efficiency and maximum speed are attainable with an inlet pressure of 1 relative bar (2 absolute bars) at the stator nozzles."