Agitators for wave-making or mixing as for tanks, and pumps and filters

A plural discharge, tank agitator for connecting onto the terminus of a generally steady flow, low head feedwater line and causing agitation in the tank by the pulsating discharge of the feedwater as divided between at least one rotating pulsating discharge port and at least one stationary pulsating discharge port, comprising:

• a housing having an inlet for connection to the feedwater line and defining a turbine plenum and first and second exhaust plenums;
• a turbine mounted in the turbine plenum and driven to spin by the flowthrough of the feedwater that is exhausted to and divided between the first and second exhaust plenums;
• an output shaft that is hollow and thereby defining a lumen, being driven to spin by the turbine and extending from a couple with the turbine to a termination that is either formed as a nozzle or provides for connection to a nozzle, the nozzle being operatively connected to the spinning turbine by the coupled output shaft such that the nozzle rotates with respect to a given rotation axis, wherein said nozzle defines said at least one rotating pulsating discharge port for discharging a pulsating stream in various directions, not all of which are continuously coincident with the given rotation axis during a complete rotation of the nozzle;
• the hollow output shaft formed with at least one aperture that allows such division of the flowthrough water that is exhausted to the first exhaust plenum to flow into the shaft's lumen;
• the first exhaust plenum extending between a first intake opening to the turbine plenum and a first outlet port before the nozzle;
• the second exhaust plenum extending between a second intake opening to the turbine plenum and a second outlet port which terminates in said at least one stationary pulsating discharge port for such division of the flowthrough water that is exhausted to said second exhaust plenum;
• a first pulsating arrangement for said at least one rotating pulsating discharge port which causes the stream discharging therefrom to pulse between alternating phases of flow and quiescence, comprising a first blocker door coupled to and driven by the spinning turbine to cycle between uncovering and covering either the first intake opening or the first outlet port whereby the discharge stream issuing from said at least one rotating pulsating discharge port pulses between alternating phases of flow and quiescence concurrently during angular displacement of the rotating nozzle;
• and
• a second pulsating arrangement for said at least one stationary pulsating discharge port which causes the stream discharging therefrom to pulse between alternating phases of flow and quiescence, comprising either the first blocker door or a second blocker door being coupled to and driven by the spinning turbine to cycle between uncovering and covering either the second intake opening or the second outlet port whereby the discharge stream issuing from said at least one stationary pulsating discharge port pulses between alternating phases of flow and quiescence;
• whereby said agitator can be positioned in an open tank such that said at least one rotating pulsating discharge port is disposed in relative association with the surface to produce surface waves while said at least one stationary pulsating discharge port is disposed relatively deeper to induce relatively more sub-surface current activity.

A plural discharge, tank agitator for connecting onto the terminus of a generally steady flow, low head feedwater line and causing agitation in the tank by the discharge of the feedwater as divided between at least one rotating discharge port and at least one pulsating discharge port, comprising:

• a housing having an inlet for connection to the feedwater line and defining a turbine plenum and first and second exhaust plenums;
• a turbine mounted in the turbine plenum and driven to spin by the flowthrough of the feedwater that is exhausted to and divided between the first and second exhaust plenums;
• an output shaft that is hollow and thereby defining a lumen, being driven to spin by the turbine and extending from a couple with the turbine to a termination that is either formed as a nozzle or provides for connection to a nozzle, the nozzle being operatively connected to the spinning turbine by the coupled output shaft such that the nozzle rotates with respect to a given rotation axis, wherein said nozzle defines said at least one rotating discharge port for discharging a stream in various directions, not all of which are continuously coincident with the given rotation axis during a complete rotation of the nozzle;
• the hollow output shaft formed with at least one aperture that allows such division of the flowthrough water that is exhausted to the first exhaust plenum to flow into the shaft's lumen;
• the first exhaust plenum extending between a first intake opening to the turbine plenum and a first outlet port before the nozzle;
• the second exhaust plenum extending between a second intake opening to the turbine plenum and a second outlet port which terminates in said at least one pulsating discharge port for such division of the flowthrough water that is exhausted to said second exhaust plenum;
• and
• a pulsating arrangement for said at least one pulsating discharge port which causes the stream discharging therefrom to pulse between alternating phases of flow and quiescence, comprising either a blocker door being coupled to and driven by the spinning turbine to cycle between uncovering and covering either the second intake opening or the second outlet port whereby the discharge stream issuing from said at least one pulsating discharge port pulses between alternating phases of flow and quiescence;
• whereby said agitator can be positioned in an open tank such that said at least one rotating discharge port is disposed in relative association with the surface to produce surface waves while said at least one pulsating discharge port is disposed relatively deeper to induce relatively more sub-surface current activity.