Abstract: An air purifier system characterized by a housing, a fan, and a motor, as well as a docking ring located at the outer edge of the inlet side of the air purifier system, a seat below the housing, a prefilter or barrier upstream of the fan, and a filter downstream of the fan. An air purifier system characterized by an upstream-to-downstream airflow path that includes an axial fan, a diffuser, and a filter, in that relative order, with an electric motor held along the centerline of the housing by one or more supports and/or guide vanes. A docking ring that facilitates attachment of a screen-like, mesh-like, cloth-like, or paper-like filter to a machine capable of air purification, characterized by having a large hole through which air passes and by attachment to the machine utilizing any tongue and groove system, for which installation and removal of the docking ring is achieved, in whole or in part, by rotation of said docking ring relative to the machine.

Abstract: Embodiments of a thermal compression bonding (TCB) process cooling manifold, a TCB process system, and a method for TCB using the cooling manifold are disclosed. In some embodiments, the cooling manifold comprises a pre-mixing chamber that is separated from a mixing chamber by a baffle. The baffle may comprise at least one concentric pattern formed through the baffle such that the primary cooling fluid in the pre-mixing chamber is substantially evenly distributed to the mixing chamber. The pre-mixing chamber may be coupled to a source of primary cooling fluid. The mixing chamber may have an input configured to accept the primary cooling fluid and an output to output the primary cooling fluid.

Abstract: An electric actuator has a motor, an electricity storing body, a switch and a resetting unit. The switch is provided in a supply path of electric power from the electricity storing body to the motor. The switch opens the supply path for electric power from the electricity storing body to the motor, in response to an instruction from an operator. The resetting unit is operated through receiving a supply of electric power from the external power supply when the external power supply has been restored from being cut off. The resetting unit closes the switch that is provided in the supply path of electric power from the electricity storing body to the motor.

Abstract: In an air conditioner casing of a vehicular air conditioner, an evaporator is arranged in a cold air passage, and a heater core is arranged in a warm air passage downstream from the cold air passage. A first air mixing damper is disposed in a warm air opening between the cold air passage and the warm air passage, and a second air mixing damper disposed in a cold air opening between the cold air passage and a bypass passage. Switching from a cooling mode to a heating mode, the first air mixing damper is opened at a constant speed proportional to the driving angle of a drive unit, and the second air mixing damper is initially rotated at a high speed by a predetermined angle immediately after the start of the closing operation, and thereafter is rotated at a low speed.

Abstract: An air diffuser comprises a plurality of discharge elements (4a to 4d). The discharge elements are configured such that they are able to be arranged in the diffuser so as to abut to form a tessellation of discharge elements in a plane. At least one of the discharge elements may be displaceable out of the plane for adjustment of its orientation.

Abstract: Disclosed is a motorized diffuser which is shut when not in use and which reduces energy consumption in a building, eliminates the necessity of a maintenance hole, prevents contamination, has a simple configuration, and enables easy maintenance when applied in a cooling/heating system adopting a proportional air flow control scheme. According to the disclosed diffuser, a diffuser cone includes: a diffuser cone body which forms a fluid passage on the outer surface thereof which is disposed between the diffuser cone body and a diffuser casing when the diffuser cone is opened; a diffuser cone cover fixed to the diffuser cone body such that the diffuser cone cover can be assembled/disassembled to/from the diffuser cone body with a space therebetween; and a motor means fixedly installed in the space.

Abstract: A mixer for mixing air flows is provided that can include an air duct, which has at least one hot air duct and one cold air duct, wherein an air flow through the hot air duct and through the cold air duct can be controlled by a respective mixing flap. A heating element is arranged in the hot air duct in order to heat the air passing through the hot air duct. Furthermore, the mixer can include a mixing chamber, which is connected to an air outlet side of the hot air duct and of the cold air duct of the air duct such as to enable fluid flow. The mixing chamber can have air guiding elements, which are arranged in such a way that air flowing out of an air outlet side of the hot air duct crosses air flowing out of an air outlet side of the cold air duct.

Abstract: A heating, ventilation and air conditioning system includes a blower unit that has an interior air intake and an exterior air intake. Three doors are moved between open and closed positions to define a recirculation mode, a fresh mode and a partial recirculation mode. As the doors move between their open and closed positions, a variable partial mode and a variable fresh mode are defined.

Abstract: A heating, ventilation and air conditioning system includes a blower unit that has a first interior air intake, a second interior air intake and an exterior air intake. Three doors are moved between open and closed positions to define a recirculation mode, a fresh mode and a partial recirculation mode. As the doors move between their open and closed positions, a variable partial mode and a variable fresh mode are defined.

Abstract: A cooling system for turbine engines for controlling cooling of rotor cooling air and heating of fuel gas is disclosed. The cooling system may be formed from a housing formed from a main plenum, a rotor air cooler positioned at least partially in the main plenum and a fuel gas heater positioned at least partially in the main plenum downstream from rotor air cooler. The cooling system may include a by-pass plenum for returning used cooling air back to a region upstream of the rotor air cooler. An exhaust fluid control device may control fluid flow out of the first exhaust opening at the second end of the main plenum, and a by-pass fluid control device may control fluid flow into the by-pass inlet opening of the by-pass plenum. The control devices and a fan may control circulation of cooling fluids through the main plenum.

Abstract: A multizone variable damper for air passageways having a plurality of damper zones, a plurality of opposed blades that are rotatable about a horizontal axis, a pair of blades of the plurality of blades being provided in each zone of the plurality of damper zones, and an actuator for each pair of blades, each actuator being configured to independently rotate each of the pairs of blades of the plurality of opposed blades so as to selectively and independently control a degree of openness of each of the pairs of blades of the plurality of opposed blades in each damper zone of the plurality of damper zones.

Abstract: The apparatus and method provide an airflow to a person or group of persons or a space such as within an airplane cabin or cockpit, operating in conjunction with an air supply which produces a high velocity air stream, such as an aircraft gasper (14). Existing systems may filter, purify and/or clean the air supplied to the occupant, and the air exiting the personal air outlet may be adjusted to a relatively high velocity. The narrow, high velocity stream of air forms a turbulent boundary layer, which tends to entrain potentially foul air from the surrounding region and directs it towards the passenger. The airflow from the apparatus and method may have reduced velocity and lower thermal and humidity gradient and may be treated to remove locally-originating contaminants. The apparatus includes a housing which receives a primary stream of air, such as from an aircraft gasper (14) or personal air outlet.

Abstract: Apparatus for controlling the delivery of air in a forced air distribution system having a source of air under pressure (4), a duct system to deliver the air, and a plurality of ports (8) in the duct system with each port defining an air delivery zone (16). The apparatus includes a vent member (20) associated with each of the ports which is movable between an open position to admit air to the zone and a closed position to block air from the zone. Independent actuator units (50) are provided to move the vent member between the open and closed positions controlled by a central control system. Thermostats in each air delivery zone communicate with the central control system (80) to control operation of the actuators units and the source of air under pressure which generally comprises heating or cooling equipment such as a furnace or air conditioning unit.

Abstract: A complete plastic HVAC system assembled using individual plastic components for ensuring the efficient and quiet distribution of air from a central air unit to multiple distribution points and preventing heating and cooling losses, the need for installers to stock multiple sized and shaped components, the accumulation of dust, dirt and pollens during storing, installing and use on the surfaces of the individual components. The fittings have a collar sizable to fit both 6 and 7-inch pipe, whether flexible or rigid. The use of plastic fittings, duct and pipe removes the potential of injury commonly associated with conventional metal ductwork, while providing seamless components that can be configured for any type of installation and insure an air tight connection between adjoining surfaces. The individual fittings include a register boot, torpedo boot, straight boot, rigid and flexible pipe and couplers, straight and 90-degree takeoffs, a plastic duct and duct end cap.

Abstract: An inexpensive fresh air intake pre-filtering device for make-up air is disclosed for use with a circulating forced air heating system that is installed on an outside wall of a building. The device is comprised of a polyethylene material with an outer flange for securing the fresh air intake to the exterior wall surface. The fresh air intake housing is structured to include an aluminum frame, two sided raised pattern grill of a RX Poly-Med filter medium, manufactured from 100% synthetic fibers. This is to prevent vermin, insects, pollens, and other pollutants from passing through, while permitting the 10% of air flow required by the Nation and Regional Building Codes for residential housing. This washable filter is easily removed or installed by the pull-tab on the front of the vent housing. This Pre-filtering device is designed to prevent snow and rain from entering the fresh air intake duct.

Abstract: An adjustable air stream introducing device for reinforcement of a blowing power of a primary air stream flowing through a duct, includes a tubular coupler disposed downstream of the duct to confine an annular space. A surrounding seat member is disposed securely in the annular space, and has a plurality of internal ports angularly displaced from one another. A surrounding sash member has a plurality of external ports, and overlies on and is turnable relative to the seat member via a motor-driven actuator member so as to adjust the overlying areas of the external and internal ports, thereby adjusting the amount of the introduced air stream through the annular space.

Abstract: A mixer box for mixing two separate sources of air. Air from a first source is fed into a plurality of vented conduits. Each of the vented conduits has at least one vent opening, that allows the air from within the conduits to escape and enter a mixing chamber. Air from a second air source flows into the mixing chamber around the vented conduits. As the second air source flows around the vented conduits, turbulence is produced that mixes the second air source with the first air source escaping from the vented conduits. Flaps are used to control the flow of the first source of air out of the vented conduits and the flow of the second source of air around the vented conduits.

Abstract: The covering system includes at least one panel capable of being placed in an inclined position with respect to a horizontal. The panel incudes an inner chamber, a plurality of suction apertures through which the inner chamber communicates with a void inside of a building, and a discharge aperture disposed at a level higher than the suction apertures when the panel is installed.

Abstract: An air-conditioning system alternately produces a cooled air stratum and a heated air stratum as viewed from an air outlet opening, and the guide length a1 of a first guide wall is set from 0.05 time or more to 0.5 times or less than the length L1. The guide length a2 of a second guide wall is set from 0.05 time or more to 0.5 times or less than the length L2. Consequently if the air mixing chamber has a small capacity (the length parallel to the direction of air flow), it is possible to mix the heated air and the cooled air sufficiently.

Abstract: A mixing device for mixing two air flows has plural first flexible curtains disposed between first edge regions of alternate pairs of air guides, and a plurality of second flexible curtains disposed between second edge regions of alternate pairs of air guides. Moveable air guides in each pair may be moved to control the flow of air.

Abstract: A novel plenum chamber and system for the mixing and subsequent distribution of two different fluids. In the preferred example the fluid is air and the chamber mixes fresh and recycled air proportionately and subsequently distributes the air stream through buildings, etc. The plenum chamber is in connection with an fresh air inlet duct and a recirculated air inlet duct at opposite ends, and an outlet duct along a third side. Louver panels divide the chamber into passages that are connected to one of the two intake ducts, the passages alternate being in connection with one or the other of the intake ducts so as to create a stratified mixture of air layers, alternating fresh layer, recirculated layer, etc. chambers. The outlet section is in connection with a distribution fan for dispersal to the rest of the building.

Abstract: An air exchange system is disclosed for use in a building having a plurality of stories each having a base floor, finished floor, finished ceiling and rough ceiling. The system comprises a plurality of main distribution ducts each adapted to be located in the space defined between the finished ceiling of a lower story and the finished floor of an upper story lying immediately above the lower story. The main ducts are located on alternate floors and adapted to supply sufficient air for the two adjacent floors. Each of the main ducts are provided with at least one upper duct which communicates with an upper story through the base floor and at least one lower duct which communicates with a lower story through the rough ceiling thereof. A variable air volume control unit is connected to each upper and lower duct controlling the volume of conditioned air entering a story of the building in order to control the temperature within the user space therein.