Machine tool distributor for cryogenic cooling of cutting tools on a turret plate

A distributor of a cryogenic fluid for cooling at least one machining tool mounted on a rotatable turret plate, comprising:

• a conduit having a first and a second end, the first end being in communication with a supply of the cryogenic fluid;
• a polymeric rotor having a first end, a second end, an outer wall between the first and second ends, an inner wall between the first and second ends, and a first longitudinal axis, the outer wall being substantially symmetrical about the first longitudinal axis, and the inner wall being substantially symmetrical about the first longitudinal axis and forming a substantially symmetrical cavity within the rotor between the inner wall and the first longitudinal axis, said rotor being rotatable about the first longitudinal axis and having at least one radial passage adjacent the second end of the rotor between the inner and outer walls of the rotor, each said radial passage being substantially equally spaced from a neighboring radial passage, substantially equadistant from the second end of the rotor, and having an inlet, an outlet, and another longitudinal axis angularly spaced from the first longitudinal axis;
• a metallic stator having a first end above the first end of the rotor and a second end above the second end of the rotor, a substantial portion of the stator being disposed in the cavity within the rotor between the inner wall and the first longitudinal axis, the stator having a first passage coaxial with the first longitudinal axis and a second passage having a second longitudinal axis angularly spaced from the first longitudinal axis, each of said passages having an inlet and an outlet, the inlet of the first passage being in communication with the second end of the conduit, the outlet of the first passage being in communication with the inlet of the second passage, and the outlet of the second passage adaptable to be in communication with the inlet of the at least one radial passage;
• a first metallic counter-shrink plate, having an axis parallel to the first longitudinal axis, mounted on the stator adjacent the second end of the stator within the cavity;
• and
• a second metallic counter-shrink plate mounted on the stator parallel to and above the first metallic counter-shrink plate within the cavity.