Turbine for material comminutor

A turbine for a comminuting machine, the turbine comprising:

• a backing plate;
• a plurality of turbine blades joined to said backing plate and extending upright from said backing plate, said turbine blades joining together at a central axis;
• each of said turbine blades including a leading edge;
• each of said leading edges being joined to a blade foil, said blade foil having at least a curved front surface;
• and
• a vent chamber penetrating said blade foil, said vent chamber having an inlet and an outlet wherein said inlet and outlet are of different diameters.

A comminuting machine comprising a turbine, a turbine housing and an expansion chamber, wherein said turbine further comprises:

• a backing plate;
• a plurality of turbine blades joined to said backing plate and extending upright from said backing plate, said turbine blades joining together at a central axis;
• each of said turbine blades including a leading edge;
• each of said leading edges being joined to a blade foil, said blade foil having at least a curved front surface;
• and
• a vent chamber penetrating said blade foil, said vent chamber having an inlet and an outlet wherein said inlet and outlet are of different diameters.

A comminuting machine comprising a turbine, a turbine housing and an expansion chamber, wherein said turbine further comprises:

• a plurality of turbine blades;
• at least one blade foil forming a terminus of at least a one of said turbine blades;
• said blade foil having at least a curved front surface;
• and
• a vent chamber penetrating said blade foil, said vent chamber having an inlet and an outlet.