Abstract: A first air-supply port and a first air-exhaust port each disposed in a first zone and used to ventilate the first zone are provided. Further, a second air-supply port and a second air-exhaust port each disposed in a second zone and used to ventilate the second zone are provided, and the second zone is adjacent to the first zone. The first air-supply port, the first air-exhaust port, the second air-supply port, and the second air-exhaust port are disposed on one plane. The first air-supply port, the first air-exhaust port, the second air-supply port, and the second air-exhaust port are disposed in order of the first air-exhaust port, the first air-supply port, the second air-supply port, and the second air-exhaust port in one direction, or in order of the first air-supply port, the first air-exhaust port, the second air-exhaust port, and the second air-supply port in one direction.

Abstract: A ventilation system for a vehicle having a cabin includes a segmented plenum comprising a plurality of sub-plenums that are disposed above the cabin, a perforated panel defining the ceiling of the cabin and having plurality of perforations for air communication of the plenum with the cabin, and ductwork including one or more upper main ducts, lower main ducts, vertical ducts, and seat return ducts. The ducts communicate with each other to convey air, descending from the segmented plenum through the perforated panel as a high volume, low turbulence blanket of air through the cabin, back to the segmented plenum. The ventilation system also includes an air processing unit (APU) in communication with the ductwork and operable to sterilize the air conveyed therein, and one or more fans for circulating the air in the ventilation system.

Abstract: Various embodiments include a blocking apparatus comprising: a holding apparatus; a receiving element mounted in the holding apparatus about an axis of rotation, defining a through-opening with a through-axis parallel to the axis of rotation; a wrap spring mechanically prestressed in the holding apparatus, with a winding arranged around the receiving element; and a thermocouple made of a material having a lower melting temperature than the holding apparatus and/or the wrap spring. The thermocouple holds at least one end of the wrap spring with respect to the holding apparatus in the prestressed state in such a way that the receiving element can be freely rotated in both drive directions about the axis of rotation. The receiving element is blocked in one of the two drive directions in the relaxed state of the wrap spring and in the triggered state of a thermal fuse.

Abstract: A safety cabinet includes an enclosure and at least one door to selectively seal the enclosure. The safety cabinet can be used to store, for example, flammable liquids, flammable waste, corrosives, pesticides, or combustible waste. The safety cabinet incorporates a thermally-actuated damper that includes a body, a valve plate, and a pivot assembly. The valve plate is disposed within the passage of the body such that the valve plate is movable between an open position and a closed position. The pivot assembly includes a biasing system adapted to bias the valve plate to the closed position and a fusible link interconnected between the body and the biasing system to constrain the valve plate from moving from the open position to the closed position. The fusible link is configured to melt at a predetermined temperature to thereby allow the biasing system to move the valve plate to the closed position.

Abstract: A louver blade for a louver assembly includes a first section, a second section extending from the first section and including a crest of the louver blade, an extension extending from the second section to form a recess between the extension and the second section, and a protrusion extending from the second section toward the extension and configured to facilitate retention of the particles within the recess. The extension is configured guide particles into the recess in an installed configuration of the louver blade with the louver assembly.

Abstract: Various connection units are disclosed. The connection unit can be configured to straighten a flow of air, such as to reduce the distance before the flow of air becomes substantially laminar. The connection unit can include a drag reduction unit. The drag reduction unit can be configured to redirect airflow to the center of the connection unit. The connection unit can include a wake diverting component configured to lift air away from the periphery of the connection unit and/or redirect the airflow towards a radial center connection unit.

Abstract: A plenum slot diffuser includes a plenum box having five walls formed by joining edges of a C-shaped bracket having first, second, and third walls of the five walls with additional edges of an L-shaped bracket having fourth and fifth walls of the fives walls. An air input opening of the plenum box is disposed in one of the five walls and is configured to be coupled to a duct, and an open end of the plenum box defines an air output opening. The plenum slot diffuser includes at least one blade and a blade holding rod comprising a neck, wherein the neck faces away from the air output opening of the plenum box.

Abstract: A regulating flap reduction gear for an electrically driven regulating flap for regulating a gas or liquid volume flow includes two parallel bearing plates between which gear parts are rotatably arranged. A plurality of spacers keep the two bearing plates at a distance from one another. The plurality of spacers are designed as tabs of one, first bearing plate, which are bent by 90° from the plane of the first bearing plate and have at least one lateral projection. The tabs are inserted with their free tab ends into plug-in openings of the other second bearing plate until their at least one lateral projection rests against the second bearing plate.

Abstract: Methods and apparatus for an exhaust demand control system for measuring one or more contaminants at one or more exhaust locations within one or a plurality of exhaust ducts or plenums served by an exhaust fan system. Example systems and methods can include sensing the one or more contaminants within the one or more exhaust duct locations using a multipoint air sampling system having one or more sensors and flow control elements, comparing contaminant concentration measurements from the one or more of said exhaust duct or plenum locations against an action level to create a fan setback signal, and ensuring sensor accuracy and reliability by implementing a sensor protective mode when the contaminant concentration measurements from the one or more exhaust locations exceeds an action level.

Abstract: A method of operating a vehicle climate system when an ambient temperature is below a threshold temperature is provided. In response to an ambient temperature being less than a threshold temperature, a controller is adapted to operate a blower motor at a voltage that depends on whether the vehicle is in charge sustain mode or charge deplete mode. In response to an ambient temperature being greater than a threshold temperature, the controller is adapted to operate the blower motor at a voltage that does not depend on whether in the charge sustain or charge deplete modes.

Abstract: An illustrative example embodiment of an elevator cab air purification device includes a housing having an inlet, an outlet, and at least one air pathway between the inlet and the outlet. A fan module is situated to cause air flow into the housing through the inlet, through the housing, and out of the housing through the outlet. The air flow through the housing includes air flow along the at least one pathway in at least a first direction. An air purifier is situated within the housing and configured to purify air that flows along the at least one pathway before the air exits the housing through the outlet.

Abstract: A structural support system for a fan array system. The system allows for a modular bulkhead wall to be customized and installed within a cabinet of an air handling unit. The modular bulkhead wall comprises one or more intermediate bulkhead stiffening elements that enable the modular bulkhead wall to support the fan array system.

Abstract: A mirror assembly is described having an integrated fan, which is adapted to be used in an automobile. In some uses, the mirror assembly may be used to watch infants and toddlers and keep them cool with flowing air as needed. In other uses, the mirror assembly may be used to cool off a driver or passenger of a vehicle who has connected the mirror assembly to a visor.

Abstract: An air plenum provides protection from viruses and particulates to a user located beneath the air plenum. The air plenum has a housing with a fan centrally located within the housing. Low-velocity air is emitted downwardly from the fan through a perforated screen on a lower side of the housing onto the user. A slot diffuser extends around a lower periphery of the housing and emits high-velocity air downwardly to form an air curtain around the user. The higher velocity air of the air curtain reduces the ability of unwanted particulate matter to enter the area that is below the perforated screen.

Abstract: A safety system, under the control of an operator, used for venting toxic or hazardous gas and vapors from a work space. The safety system includes a control system, programmed by a computer, a control panel, a human machine interface (HMI), a gas detector, and an alarm. The HMI is adapted for use by the operator and for operating the safety system. The safety system includes a mechanical solvent, or gas (CO2) based, chemical extraction system, used for extracting oils from oil-bearing plants. The extraction system, comprising a solvent recovery system, is attached to and under the control of the control system. The safety system includes a ventilation system attached to, and under the control of, the control system. The ventilation system is used for venting the gas and vapors from the work space.

Abstract: A device for controlling air flow in an air duct comprises a rotary, profiled damper, a fan or turbine, and an actuator. The profiled damper comprises two rotatable integral canopies, a central opening therebetween, flat ribs extending outwardly from the canopies and towards an interior of the air duct, wherein an axis of rotation of said canopies coincides with an axis of rotation of the profiled damper and the canopies are arranged on the opposite sides of the profiled damper. The profiled damper is characterized in that the actuator is configured to reverse a position of the profiled damper, thereby reversing a direction of an air stream generated by the fan or turbine.

Abstract: A fire evacuation room includes a main body having an entrance and an evacuation space, a door installed in the entrance, an air intake pipe connected to a rear portion of a ceiling of the main body to induce air entering the evacuation space, an air discharge pipe connected to a front portion of the ceiling to induce air exiting the evacuation space, an air discharge fan installed on an inner rear wall of the main body while facing the entrance and turned ON/OFF in conjunction with an opening/closing of the door, a lamp installed on the ceiling, a control box installed inside the main body, a sub-air intake pipe branching from one side of the air intake pipe, and an oxygen generator connected to the sub-air intake pipe and configured to receive the air and generate oxygen, the oxygen being supplied into the main body.

Abstract: A housing mounting assembly adapted to connect to a seat in a vehicle. The mounting assembly may have a panel disposed within the housing. The housing mounting assembly may have a flap attached to the housing and at least one strap attached between the housing and the flap. The housing mounting assembly may have a securing device attached to the flap to secure the mounting assembly to the seat in the vehicle.

Abstract: An adapter and adapter system for connecting a female end of a first chimney portion to a male end of a second chimney portion. The adapter includes a first radial adapter portion with a first inner surface and a first outer surface extending along a first axis and wherein the first inner surface and the first outer surface are substantially coaxial. The adapter further includes a first locking interface protruding outward from the first outer surface and configured to engage with a first locking interface of the first chimney portion and a second locking interface protruding inward from the first inner surface and configured to engage with a second interlocking interface of the second chimney. The first outer surface of the adapter is configured to be received within the female end of the first chimney portion and the inner surface is configured to receive the male end of the second chimney.

Abstract: An assembly for saturating or aerating a medium with fluid. At least one hollow cylinder having gates and vents embedded within a grain mass. A target section of grain mass is identified and the gates and vents activated to provide influent flow to the target section in both vertical and horizontal directions.