Disclosed herein is a flue pipe system comprising a flue pipe, a first electrode, a second electrode, a third electrode, and a voltage supply. The flue pipe can define a fluid flow path through an interior volume of the flue pipe. The voltage supply can be connected to the first electrode, the second electrode, and the third electrode. The voltage supply can form a first electrical circuit comprising the voltage supply, the first electrode, and the third electrode and a second electrical circuit comprising the voltage supply, the second electrode, and the third electrode. The first electrical circuit can form a streamer corona discharge between the first electrode and the third electrode in the interior volume such that the fluid flow path flows therethrough. The second electrical circuit can form a flow of ions between the second electrode and the third electrode along the interior surface of the flue pipe.

A working fluid filtration and separation system that removes contaminants from a working fluid of a working machine. The system includes a vessel and an electrostatic collector mounted within the vessel which electrostatically removes contaminants from contaminated working fluid as it passes through the electrostatic collector element. The electrostatic collector element includes a plurality of concentric electrodes of different radii, a plurality of corrugated walls residing in spaces located between adjacent electrodes. An elongated center post electrode is provided that induces a voltage in at least one of the plurality of concentric electrodes. The system is configured to generate a voltage difference between each pair of adjacent concentric electrodes to electrostatically remove contaminants from the working fluid as it flows through the filtration and separation system. The system further includes a center post isolator that is configured to mount the center post isolator within the vessel and electrically insulate the center post electrode from the vessel.

An electro-ionic device configured for being worn on the face of a person is disclosed. The electro-ionic device includes at least two electrical conductors spaced apart from each other defining at least a portion of a respiratory pathway therebetween and a circuit configured to apply a first voltage between the two conductors during inspiration and a second voltage greater than the first voltage during expiration.

The present invention includes a device, a system, and a method for enhancing a particle separation efficiency, including a particle charging device adapted to impart predominately unipolar charging on a plurality of particles in a fluid stream, e.g. a gas stream; wherein the particle charging device is positioned upstream from and adapted to provide the plurality of particles charged by the particle charging device to a particle deflection device capable of separating the particles charged by the particle charging device from a core fluid flow that is substantially free of dust particles.

[Object of the Invention] An object of the present invention is to develop an air curtain device generating parallel air flow based on the knowledge in that parallel air flow generated at the outlet of a turbulent flow runup zone does not include vortex flows and has strong air current interruption performance. [Disclosure of the Invention] An air curtain device comprises a first ventilation box comprising a discharge elbow provided with guide vanes, a honeycomb, an industrial use ventilating fan, a suction elbow provided with guide vanes, and a pre-filter, wherein the aforesaid elements are sequentially accommodated in a rectangular box whose one side surface is open and an outlet port of the discharge elbow provided with guide vanes and the pre-filter are disposed on the open side surface of the rectangular box, and a second ventilation box of the same structure as the first ventilation box, wherein the first ventilation box is put on an entrance floor with the discharge elbow provided with guide vanes above, and the second ventilation box is put on the entrance floor with the discharge elbow provided with guide vanes below, so that the first ventilation box and the second ventilation box oppose each other at their open side surfaces in a mutually upside-down manner and the first ventilation box and the second ventilation box are distanced from each other by a breadth Xg of the entrance, and wherein an entrance ceiling is provided to a breadth equal to the distance between the ventilation boxes so as to connect a top of the first ventilation box with a top of the second ventilation box, thereby forming an air curtain device entrance, wherein relation between the breadth Xg of the entrance of the air curtain device and a breadth D of the outlet ports of the discharge elbows provided with guide vanes is set at Xg5D.

A vehicle is provided including a cabin, a conduit arranged to conduct a flow of air from outside the vehicle to the cabin, and a filter unit arranged to filter at least a portion of the flow of air before it enters the cabin. Further, an ionizing unit is arranged in the conduit upstream of the filter unit as seen in the direction of the flow of air so as to charge particles present in the flow of air and transmit at least a major part of the charged particles towards the filter unit. The at least one collector electrode has a tube-like shape arranged to conduct at least a portion of the flow of air, and the at least one emitter electrode is arranged at a central axis of the tube-like shaped collector electrode, whereby a more uniform ionization field is provided.

Known wet electrostatic precipitators are large and inefficient. The present invention enables the production of smaller, more efficient and long lasting wet electrostatic precipitators by the addition of a central bore in the inner electrode through which a first purge flow is passed and directed into the precipitator chamber, perpendicular to the direction of flow of the gas to be treated through the chamber to urge the particulate into the water curtain. A second, larger, cleaning purge flow is also provided to disturb the water curtain such that it cleans the inner electrode of any deposited particulate.

This separator device includes a separation chamber having an inlet and an outlet, an oil recovery chamber coupled to the separation chamber, an emitter electrode, a collector electrode, and an electronic unit connected to the emitter and collector electrodes, for during a charging phase, bringing the emitter electrode to a negative potential, so as to negatively charge oil drops, and bringing said at least one collector electrode to a zero or positive potential, so as to collect negatively charged oil drops. The separator device further includes a pressure-drop generating member in the separation chamber. The oil recovery chamber is coupled to the downstream portion of the separation chamber via a vacuuming port, so that the oil recovery chamber is depressed.

An air filtering device for an air conditioner, in particular for filtering out particles, preferably pollutants, from air is provided. The air filtering device comprises a flow path through which air flows along a flow direction, an ionizer for generating ions in the flow path, and grid structure made of an electrically conductive material, that is upstream of the ionizer in the flow path in the flow direction, which forms a first electrode. A filter is downstream of the ionizer in the flow path in the flow direction which has a layer that forms a second electrode. The air filtering device also comprises a high voltage power source that has an electric pole and an electric counter-pole for generating a high voltage between the pole and the counter pole. The pole is electrically connected to the ionizer. The counter-pole is electrically connected to the first and second electrodes. there is a third electrode near the ionizer 3, electrically separated therefrom, which is electrically connected to the first and second electrodes 5a, 5b.

An electro-ionic device that includes an outer frame, a first conductor, an insulating frame, and a second conductor. The outer frame defines a passageway there through. The first conductor is positioned within the outer frame and includes at least one wire configured to be supplied with a voltage. The insulating frame is positioned within outer frame and forms a non-conductive barrier between the first conductor and the outer frame. The second conductor is positioned within and contacts the outer frame.