A mixing unit (1) for mixing a liquid product (2) includes a tank (3) and a fluid nozzle (4) configured to inject a fluid flow (6, 7) of the liquid product (2) into the tank (3). The fluid nozzle (4) has a first outlet (20) that opens in a sideways direction (S), a second outlet (21) that opens in an upward direction (U), and a valve plug (14) configured to selectively open and close the outlets (20, 21). The mixing unit (1) is operable in a low stage operational mode (9) during which the first outlet (20) is open, the second outlet (21) is closed, and mixing occurs in a lower region (10) of the tank (3), and a high stage operational mode (11) during which the first outlet (20) is closed, the second outlet (21) is open, and mixing occurs in an upper region (12) of the tank (3).

A system for increasing useful energy output includes a source of hot combustion gas, such as from a gas turbine engine, and an apparatus that is disposed downstream of and receives the hot combustion gas and acts thereon to optimize electricity/thrust energy output of the system. The apparatus includes a housing that is coupled to the source and receives the hot combustion gas and also includes a rotatable shaft centrally disposed within the housing. A rotatable fluid moving device is coupled to the rotatable shaft and is configured such that the rotatable fluid moving device moves the hot combustion gas into a shape within the housing such that useful energy output/thrust is increased. Optionally, the system includes a spray nozzle that discharges water droplets upstream of the rotatable fluid moving device in a high temperature environment such that the action of the rotatable fluid moving device generates water vapor (steam) having a particular profile (e.g., annular shaped).

An aquatic floating manure agitator vessel including a plurality of remotely controlled above-surface agitator nozzles which are visibly positioned on the vessel and hydraulically movable about multiple axes to facilitate effective pond agitation and directional control of the floating agitator. The floating agitator includes a vertically adjustable hydraulic undercarriage and hitch mechanism to facilitate ease of maneuverability during launching and removal of the floating agitator, and for probing the pond bottom for excess sludge build-up. The floating agitator also includes hydraulically folding side wings or pontoons mounted on each side of the vessel to further enhance ease of maneuverability and storage of the vessel.

A system for agitating manure includes a vessel shaped to be placed in a manure storage installation. The vessel includes a vessel frame having floatation for providing floatation to the vessel, at least one outlet nozzle attached to the vessel frame for agitating the manure, and a control system attached to the vessel frame for controlling the direction of the at least one outlet nozzle. The system includes a land based power source separated from the vessel having a fluid pump for pumping fluid from a land based input nozzle to supply fluid to the at least one outlet nozzle on the vessel. The system includes a fluid conduit connecting the land based power source to the at least one outlet nozzle and a remote control for user control of the control system of the vessel.

A mixing unit (1) for mixing a liquid product (2) includes a tank (3) and a fluid nozzle (4) configured to inject a fluid flow (6, 7) of the liquid product (2) into the tank (3). The fluid nozzle (4) has a first outlet (20) that opens in a sideways direction (S), a second outlet (21) that opens in an upward direction (U), and a valve plug (14) configured to selectively open and close the outlets (20, 21). The mixing unit (1) is operable in a low stage operational mode (9) during which the first outlet (20) is open, the second outlet (21) is closed, and mixing occurs in a lower region (10) of the tank (3), and a high stage operational mode (11) during which the first outlet (20) is closed, the second outlet (21) is open, and mixing occurs in an upper region (12) of the tank (3).