Devices for cavitational mixing and pumping and methods of using same

1. A mixing device comprising:

a body including a base portion and a peripheral wall extending from the base portion defining an inlet space therebetween;

the base portion includes at least one inlet port disposed therein which is in fluid communication with the inlet space;

the peripheral wall includes at least one outlet channel disposed therein which is in fluid communication with the inlet space; and

at least one baffle body disposed in and spaced apart from the outlet channel to provide a local constriction between the baffle body and the outlet channel.

2. The mixing device as set forth in claim 1 , further comprising a shaft connected coaxial to the base portion of the body opposite the peripheral wall.

3. The mixing device as set forth in claim 2 , further comprising means for rotating the shaft.

4. The mixing device as set forth in claim 3 , wherein the rotating means is a motor.

5. The mixing device as set forth in claim 1 , wherein the body has a generally cylindrical shape.

6. A mixing device comprising:

a housing having an inlet configured to introduce a fluid into the housing and an outlet configured to permit fluid to exit the housing;

a mixing head disposed within the housing, the mixing head including:

a base portion and a peripheral wall extending from the base portion defining an inlet space therebetween, the peripheral wall includes an outlet channel disposed therein that is in fluid communication with the inlet space, the inlet space is in fluid communication with the inlet of the housing, and

at least one baffle body coaxially disposed in and spaced apart from the outlet channel to provide a local constriction between the baffle body and the outlet channel; and

means for rotating the mixing head within the housing.

7. The device as set forth in claim 6 , wherein the inlet is disposed perpendicular to outlet.

8. The device as set forth in claim 6 , wherein the rotating means is a motor.

9. A method for mixing a fluid comprising:

inserting a mixing head into a volume of fluid, the mixing head including:

a base portion and a peripheral wall extending from the base portion defining an inlet space therebetween, the peripheral wall includes an outlet channel disposed therein that is in fluid communication with the inlet space, and

at least one baffle body coaxially disposed in and spaced apart from the outlet channel to provide a local constriction between the baffle body and the outlet channel;

rotating the mixing head to create centrifugal forces to force the fluid through the local constriction thereby creating cavitation to effectuate mixing of the fluid.

10. A method for mixing and pumping a fluid comprising:

providing a mixing head in a housing having an inlet and an outlet, the mixing head including:

a base portion and a peripheral wall extending from the base portion defining an inlet space therebetween, the peripheral wall includes an outlet channel disposed therein that is in fluid communication with the inlet space, the inlet space is in fluid communication with the inlet of the housing, and

at least one baffle body coaxially disposed in and spaced apart from the outlet channel to provide a local constriction between the baffle body and the outlet channel;

supplying fluid to the inlet of the housing; and

rotating the mixing head to create centrifugal forces in the fluid to:

i) force the fluid through the local constriction thereby creating cavitation to effectuate mixing of the fluid, and

ii) force the mixed fluid to exit the outlet in the housing thereby effectuating pumping of the mixed fluid.