Abstract: An air filter and a method of air filtration using the air filter are described. The air filter may comprise a filter media adapted to capture and filter one or more impurities from air. Further, one or more sound wave generators are attached at one or more sides of the filter media. The one or more sound wave generators generate acoustic waves to be propagated into the filter media. The air filter may further comprise a plurality of sensors positioned before the filter media and after the filter media. Further at least one fan is positioned before or after the filter media. Further an IoT is configured to control frequency of the acoustic waves generated by the one or more sound waves generators, and interconnected with power signal control panel parallel, AHU to control rotational speed of the at least one fan based on value provided by the plurality of sensors.

Abstract: A shutter valve for alternatingly allowing and stopping a high pressure water flow, such as in a device for generating energy from sea waves, comprising a tube section (201) having a rectangular cross section, wherein a multitude of vanes (202) are rotatably mounted in the tube section (201), wherein the vanes have a relatively large rectangular longitudinal cross section in a first direction, a relatively flat rectangular longitudinal cross section in a second direction perpendicular to said first direction, and a generally flat cross section in a third direction perpendicular to said first and second directions, said third direction being the axis of the vane (202), wherein the circumferential wall around the axis of each vane forms a closed water impermeable surface, wherein the axes of said multitude of vanes all extend in a parallel manner, characterized in that the distances between the axes of adjacent vanes are approximately half the distance between the outer tips of the vanes, seen in the cross sect

Abstract: A throttle valve for preventing a sudden unintended acceleration, the throttle valve regulating an amount of air supplied to an engine mounted on a vehicle and including a valve main body, a flow path formed in the valve main body and having an inlet through which the air flows in and an outlet connected to the engine, and a flow rate regulating unit regulating an amount of the air in the flow path by opening or closing the flow path, in which, when a rapid pressure drop occurs at the outlet side connected to the engine, the flow rate regulating unit is pressed by a force generated due to a difference in pressure between the inlet and the outlet so as to close the flow path without use of an additional drive source.

Abstract: A valve opening and closing mechanism includes: an input shaft 2 driven by a power source; two or more output shafts 5, 6 respectively including valves 3, 4; power transmission members that transmit power from the input shaft 2 to the respective output shafts 5, 6 with varying a phase of the power; and preload application members that apply preloads respectively to the output shafts 5, 6 and the power transmission member in opposite directions. The output shafts 5, 6 may be separated from the power transmission member.

Abstract: A damper assembly for use in an industrial duct used for venting contaminated gasses having particulate matter suspended therein. The damper assembly removes precipitate from the duct that was deposited by the contaminated gas and particulate matter. The damper assembly includes an articulating member which is movable between an open position and a closed position along a first axial direction. Opposing blades are disposed on opposite sides of the articulating member. Each of the opposing blades define a distal edge and are pivotable about axes that are substantially parallel to one another. A link couples each blade to the articulating member such that the motion from the articulating member is transfer to the blades. Each link is coupled to the blade between the distal edge and the respective parallel axis.

Abstract: A valve including a body that defines first and second ducts that open out into a third duct. The first duct is provided with a first shutter and the second duct is provided with a second shutter connected to drive means arranged to move the shutters in a normal mode of operation in which the second shutter is in the closed position and the first shutter is adjustable in position between an open position and a first closed position, a stop mode in which the second shutter is in its closed position and the first shutter is in its first closed position, and a secondary mode of operation in which the second shutter is in its open position and the first shutter is in a second closed position.

Abstract: A deployable automated vent cover device includes a vent cover and a telescopic pole. The vent cover includes a vent base, a first vent door, a second vent door and a release mechanism. The release mechanism includes a solenoid, a pivot release, a first latch device and a second latch device. The vent base preferably includes a base plate with two openings, and a vent seal. The first and second vent doors are pivotal attached to the base plate. The first latch device is retained on the base plate and the second latch device is retained on the base plate. The first and second latch devices retain the first and second vent doors in a closed orientation. The pivot release is pivotally connected to the solenoid and to the first and second latch devices. The solenoid is actuated to open the first and second vent doors through the pivot release.

Abstract: An exhaust bypass valve assembly for an internal combustion engine includes an exhaust bypass valve having valve structure coupled to a rotatable shaft such that rotation of the shaft moves the valve structure between opened and closed positions. An actuator is disposed remotely from the bypass valve for selectively causing rotation of the shaft associated with the valve structure in opposing directions. Linkage structure is connected between the actuator and the shaft to transfer motion of actuator to the shaft.

Abstract: As one example, an apparatus configured to regulate flow in an exhaust passage of an internal combustion engine system is provided.

Abstract: A damper unit for an air circulation system. The damper unit includes a frame defining an air flow opening, a damper vane for opening and closing the air flow opening, and a drive mechanism for turning the damper vane between the open and closed positions. The vane of the damper unit includes a main body and vane turning surfaces that project outwardly from the main body. The vane turning surfaces are configured for converting air flow into torque for assisting the drive mechanism in turning the damper vane between the open and closed positions.

Abstract: Bi-leaved valve apparatus for controlling bulk material flow from a bulk material metering apparatus. A bi-leaved valve apparatus comprises a cylindrical flow tube defining an axial material passageway, an outlet and a flow tube actuation surface. A valve support is mounted about the flow tube adjacent the flow tube outlet such that the valve support and flow tube are relatively rotatable. A pair of leaves are attached to the valve support and are sized to seal the flow tube outlet. The leaves are movable between open and closed orientations and have a valve actuation surface adjacent the flow tube actuation surface. An actuator causes relative rotational movement of the flow tube and valve support such that rotation to a first relative position causes the flow tube and valve actuation surfaces to open the leaves and rotation to a further relative position causes the leaves to close. The valve apparatus may be used with bulk material metering machines such as vertical form/fill/seal packaging machines.

Abstract: A throttle valve assembly for a deposition chamber or the like is disclosed. The throttle valve assembly comprises a shaft including a first portion and second portion. At least one throttle vane or plate is coupled to the first portion of the shaft and a valve gear is coupled to the second portion of the shaft. A positioning element is provided to couple the valve gear to the shaft in only one rotational orientation.

Abstract: A fluid flow control damper assembly having a damper vane and a piston actuator is relatively easy to install when the outer surface of a duct is inaccessible. The piston actuator includes a powder metal piston, lacking an elastomeric (for example, rubber) seal, that is closely received within a glass cylinder. The glass cylinder has a fitting that closes one end of the cylinder and is connectable to a pneumatic control system. A drive rod is connected between the piston and the damper vane to move the damper vane between an open position and a closed position.

Abstract: An improved butterfly damper for air delivery systems, having multiple rotatable blades, and a centrally located blade rotating, or actuation means. Each blade comprises an offset, or displaced portion to allow concealment of the actuation mechanism upon closure. This offset portion allows the blades, upon closure, to meet and form a seal around the least complex portion of the actuation mechanism.

Abstract: An airflow control device for air streams in a motor vehicle air-conditioning system includes an installation frame with pivotable lamellae (2) that are driven by an electric motor via a gear mechanism arranged on the outside of the frame. The gear mechanism comprises a plurality of cylindrical gearwheels (9 to 12) arranged one above the other, so as to be very narrow and such that the overall dimensions of the housing (5) for the gear mechanism do not exceed the width and height dimensions of the frame (1). This novel arrangement allows integration of the drive as a whole and minimizes the amount of space required.

Abstract: A throttle valve assembly for a deposition chamber or the like is disclosed. The throttle valve assembly comprises a shaft including a first portion and second portion. At least one throttle vane or plate is coupled to the first portion of the shaft and a valve gear is coupled to the second portion of the shaft. A positioning element is provided to couple the valve gear to the shaft in only one rotational orientation.

Abstract: A damper system has a frame within which a plurality of pivotally supported vanes are actuated by linkage rods pivotally connected to the vanes by rocker brackets and trunion pivots. The trunion pivots include bearing assemblies seated within bearing-receiving recesses in the rocker bracket to provide free pivotal movement of the linkage rods with respect to the vanes.