An air shower apparatus includes a plurality of blowers provided in a face portion, and a plurality of blowers provided in a face portion disposed to face the face portion. A suction port included in a blower is disposed to face a blow-out port included in a blower. In a set of the blower and the blower, the blower blows out a spiral airflow from the blow-out port, and the blower sucks the spiral airflow from the suction port. The air shower apparatus generates an air shower by a plurality of spiral airflows blown out from a plurality of blow-out ports.

A vortex generator for installation in a passage defined by heating, ventilating, and air conditioning (HVAC) equipment is configured to mix air flow through the passage. The vortex generator includes a proximal end configured to extend from a support defining the passage. The proximal end includes a first width dimension configured to extend transverse to a flow direction through the passage. The vortex generator includes a distal end opposing the proximal end. The distal end includes a second width dimension configured to extend transverse to the flow direction through the passage, where the second width dimension is greater than the first width dimension. The vortex generator includes a body extending from the proximal end to the distal end. The body includes a third width dimension configured to extend transverse to the flow direction through the passage, where the third width dimension is less than the second width dimension.

A temperature control system in an aircraft passenger service unit is disclosed. In embodiments, the system includes a swirl chamber configured to receive an inlet air stream, and a vortex tube configured to receive the inlet air stream from the swirl chamber and separate the inlet air stream into a warmer air stream and a cooler air stream. In embodiments, the system further includes a nozzle configured to direct a temperature-controlled air stream into a passenger space of an aircraft; wherein the nozzle is configured to be selectably adjusted in order to selectively blend the warmer air stream and the cooler air stream in order to generate the temperature-controlled air stream.

A temperature control system in an aircraft passenger service unit is disclosed. In embodiments, the system includes a swirl chamber configured to receive an inlet air stream, and a vortex tube configured to receive the inlet air stream from the swirl chamber and separate the inlet air stream into a warmer air stream and a cooler air stream. In embodiments, the system further includes a nozzle configured to direct a temperature-controlled air stream into a passenger space of an aircraft; wherein the nozzle is configured to be selectably adjusted in order to selectively blend the warmer air stream and the cooler air stream in order to generate the temperature-controlled air stream.

An air exhaust apparatus includes a housing, a shaft, a bearing part, a propeller, and an impeller disposed at a lower portion of the shaft. The housing has a space formed therein and an outlet formed at an upper portion thereof to discharge air flowed into the space. The shaft is installed inside of the housing in a vertical direction. The bearing part supports the shaft to revolve. The propeller is disposed at an upper portion of the shaft to be rotated by an exhaust suction flow in a duct. The impeller includes a rotating plate having a through hole for air inlet and a plurality of fins formed on the rotating plate, and is rotated with the propeller. A funnel-shaped vortex is formed under the impeller when the propeller and impeller revolve.

An air conditioning device includes a body comprising an inlet plenum portion to receive input air including vapor molecules, a spray chamber portion to receive the input air, the received input air being rigorously mixed within the spray chamber, a sprayer portion to charge a liquid droplet and to release the charged liquid droplet into the rigorously mixed air to cause the charged liquid droplet to attract a vapor molecule, such that the vapor molecule attaches to the charged liquid droplet and separates from the input air, a separation chamber portion to cause the liquid droplet with the attached vapor molecule to separate from the rigorously mixed air and to condense and collect as liquid within an outlet plenum, and an air outlet portion to direct output air from the air conditioning device, a first humidity of the output air being less than a second humidity of the input air.

A vortex ring generation device includes a casing having a discharge port, an extrusion mechanism, and a component supply port. The extrusion mechanism extrudes air in an air passage inside the casing such that the air is discharged, in a vortex ring shape, from the discharge port. The component supply port surrounds the air passage. A total circumferential length of the component supply port is ½ or more of a total circumferential length of the discharge port. The extrusion mechanism includes a vibration plate and a drive unit that vibrates the vibration plate. The air passage includes a first passage, and a throttle passage continuous with a downstream end of the first passage. A component chamber is provided inside the casing. The component chamber contains a discharge component to be supplied to the component supply port. The component supply port is located downstream of the throttle passage.

An air circulation and/or purification device for recirculating air and/or removing contaminants from the air which includes a housing having a top with an opening for air intake and a bottom, a fan contained within the housing, and a plurality of air output vents contained within multiple sides of the housing near the bottom of the housing. The bottom of the housing may include a conical shaped portion extending inward from the bottom of the housing or other structures to assist in expelling air from the housing in at least two different directions. The device may also include one or more filters designed to capture and filter out different types of contaminants.

An air conditioning device includes an inlet plenum to receive input air, a sprayer to charge at least one of a plurality of liquid droplets generating at least one charged liquid droplet and to release the charged liquid droplet into air rotating vortex, moving the input air within a spray chamber, to cause the charged liquid droplet to attract and attach a vapor molecule of the input air separating the molecule from the input air, a separation chamber to cause the liquid droplet with the attached vapor molecule to separate from the vortex to condense and collect as liquid, and an air outlet to direct, away from the air conditioning device, output air including air remaining following the separation, from the vortex, of the liquid droplet with the attached vapor molecule, where a first humidity of the output air is less than a second humidity of the input air.

An air circulation and/or purification device for recirculating air and/or removing contaminants from the air which includes a housing having a top with an opening for air intake and a bottom, a fan contained within the housing, and a plurality of air output vents contained within multiple sides of the housing near the bottom of the housing. The bottom of the housing may include a conical shaped portion extending inward from the bottom of the housing or other structures to assist in expelling air from the housing in at least two different directions. The device may also include one or more filters designed to capture and filter out different types of contaminants.