Abstract: A multi-stage fluidic oscillating circuit and system can produce an output spray of selectively varying frequency, even though the fluid supplied to the circuit/system is maintained at a substantially constant pressure. The circuit is characterized by two successive stages, each having a power nozzle aligned around a central axis. Upstream and downstream inertance loops are included in each of the stages, with fluid from one of these loops being selectively released to affect the frequency change in the output spray. The circuit is also characterized by a splitter and optional dog ear style protrusions formed in the outlet of the circuit.

Abstract: A fluidic geometry, chip, and nozzle assembly capable of providing multiple oscillation frequencies without the need for moving parts is contemplated. A fluidic circuit having feedback loops with differing cross-sectional areas will allow for output of oscillating sprays having different frequencies based upon fluid pressure.

Abstract: A fluidic geometry, chip, and nozzle assembly capable of providing multiple oscillation frequencies without the need for moving parts is contemplated. A fluidic circuit having feedback loops with differing cross-sectional areas will allow for output of oscillating sprays having different frequencies based upon fluid pressure.

Abstract: A multi-stage fluidic oscillating circuit and system can produce an output spray of selectively varying frequency, even though the fluid supplied to the circuit/system is maintained at a substantially constant pressure. The circuit is characterized by two successive stages, each having a power nozzle aligned around a central axis. Upstream and downstream inertance loops are included in each of the stages, with fluid from one of these loops being selectively released to affect the frequency change in the output spray. The circuit is also characterized by a splitter and optional dog ear style protrusions formed in the outlet of the circuit.

Abstract: Provided is a dual spray nozzle tip assembly having a geometry that is split into several sub components to enable robust manufacturing and assembly of the resulting nozzle. The nozzle tip assembly is configured to be attached to a device configured to provide a pressurized fluid and gas therefrom. The nozzle tip assembly comprising an elongated body defining a fluid lumen and at least one gas lumen between a distal end and a proximal end. The elongated body including at least an attachment profile, a straight portion, and an outlet region. The outlet region defines a shear nozzle in communication with the fluid lumen and at least one gas outlet in communication with the at least one gas lumen, the outlet region is configured to direct pressurized gas from the at least one gas outlet and to produce a desired spray pattern from the shear nozzle.

Abstract: Provided is a dual spray nozzle tip assembly having a geometry that is split into several sub components to enable robust manufacturing and assembly of the resulting nozzle. The nozzle tip assembly is configured to be attached to a device configured to provide a pressurized fluid and gas therefrom. The nozzle tip assembly comprising an elongated body defining a fluid lumen and at least one gas lumen between a distal end and a proximal end. The elongated body including at least an attachment profile, a straight portion, and an outlet region. The outlet region defines a shear nozzle in communication with the fluid lumen and at least one gas outlet in communication with the at least one gas lumen, the outlet region is configured to direct pressurized gas from the at least one gas outlet and to produce a desired spray pattern from the shear nozzle.

Abstract: A kitchen hood filtration system having improved odor removal properties includes an electrostatic precipitator having negative corona which generates ozone. The ozone interacts with odor-producing moieties to help eliminate the odors. The filtration system also includes a grease remover, an odor remover which utilizes the ozone, and a fan which drives kitchen effluent through the hood filtration system.

Abstract: Convective cooling of a distribution transformer is enhanced by use of magnetic fluid which has a magnetically driven flow pattern in the form of a plurality of vertically stacked magnetic circulation cells with convective heat transfer being enhanced by modifying the configuration of a proximate transformer wall to facilitate the transfer of heat from the magnetic fluid to the wall and then to the ambient air.

Abstract: An energy efficient dryer for solid foods with moist interiors uses both thermal convective and microwave drying processes. The dryer will run on a fuel such as natural gas alone, and requires no input of electricity because it utilizes a single prime mover to produce both thermal energy and electrical energy, such as an internal combustion engine, which both provides heat for convective drying, and drives a generator which produces electricity for conversion to microwave power. Moist food is fed by an air pervious belt or other means through a first zone in which it is dried by thermal convection, and then through a second zone in which it is dried by microwave radiation.