Abstract: A flow control assembly to control flow to an area of a vehicle includes, among other things, a plurality of shutters including at least one first shutter and at least one second shutter, an actuator assembly rotatable about an axis, a first actuator link operably coupling the actuator assembly to the at least one first shutter, a second actuator link operably coupling the actuator assembly to the at least one second shutter. Rotation of the actuator assembly in a first direction moves the first actuator link to rotate the at least one first shutter in a clockwise direction from a flow restricting position to a flow permitting position. Rotation of the actuator assembly in the first direction additionally moves the second actuator link to rotate the at least one second shutter in a counterclockwise direction from a flow restricting position to a flow permitting position.

Abstract: An air distribution apparatus that serves as a single sensing device for both lighting, LiFi, and HVAC functions that are operable on a single platform by building automation systems. The building automation system may be controllable by a single software system or network accessible locally on site or remotely off site. The air distribution apparatus can operate in a single zone or coupled with multiple like apparatuses for multi-zone operation. It is a high turndown, self-balancing system which allows for continuous commissioning with built-in fault diagnostic systems and that may be used as a supply, return, or exhaust system, or a combination thereof. The air distribution apparatus includes multi-stage airflow control systems that operate progressively based on unique actuation mechanisms and/or algorithms that allow for precise flow control and feedback to self-balance and commission the system.

Abstract: A vehicular active air flap assembly capable of being opened or closed during a failure may include an air flap that can be manually opened to allow air required during the operation of the vehicle to be supplied into the engine compartment even when the air flap malfunctions, wherein the vehicular active air flap assembly is configured to operate the air flap mounted on a hole formed in a radiator grill to allow cooling air to be supplied into an engine compartment of a vehicle or block the supply of cooling air and wherein the air flap is rotatably coupled at opposite end portions thereof to the radiator grill, and at least one end portion thereof is mounted to be movable in a front-rear direction of the vehicle.

Abstract: In one aspect, the present disclosure provides a controller for a HVAC system having an economizer with a damper and pressure sensors on opposing sides of the economizer. The controller comprise a diagnostics controller having a program configured to use pressure difference sensor data to determine if a pressure difference across the economizer is outside an operational design parameter of the HVAC system, and generate an error signal when the pressure difference is outside the operational design parameter.

Abstract: The present invention provides an air vent for a vehicle, in which an unevenness shape is formed at one end portion of each of front wings that are closed to overlap each other, thereby preventing the occurrence of a whistling noise and minimizing the occurrence of an air leak.

Abstract: A ventilation cap includes a tube portion, a vent portion, and an upper portion. The tube portion is configured to releasably engage with a vent pipe. The vent portion extends from the tube portion to define a common pathway formed therein. The vent portion has at least three interconnected adjacent sides. Each of the sides includes one or more upright ribs, and multiple contiguous ribs laterally extending from the upright ribs to define openings in fluid communication with the common pathway. The contiguous ribs at one or more sides have an intermediate segment with an increased cross-sectional area. The contiguous ribs taper laterally from the intermediate segment to ends. The upper portion is disposed above the vent portion and connected to an upper end of the upright ribs.

Abstract: An active grille system which is mounted to a fascia, grille, or carrier, or is part of the carrier of an automobile. Two sets of louvers are rotatably mounted to a frame, and a camming mechanism provides selective actuation of both sets of louvers, and an actuator controls the camming mechanism such that the actuator moves the camming mechanism between a first position, a second position, and a third position. When the camming mechanism is in the first position, both the first set and second set of louvers are in a closed position, when the camming mechanism is in the second position, the first set of louvers are in an open position and the second set of louvers are in a closed position, and when the camming mechanism is in the third position both the first set and second set of louvers are in an open position.

Abstract: A multi-vane throttling valve for a vacuum process chamber includes a reciprocal vane pivotally connected to and extending backwardly away from a back side of each of a plurality of rotatable vanes, and a stationary reciprocal vane angling assembly fixed in a predefined position and having an assembly pin extending transversely toward the reciprocal vane a predefined distance sufficient to support the reciprocal vane whereby the stationary angling assembly causes the reciprocal vane to pivot in a range between a substantially parallel position with the respective rotatable vane and a transverse position with the respective rotatable vane when the respective rotatable vane is rotated.

Abstract: A multi-vane throttling valve for a vacuum process chamber includes a throttle chamber body having an inside exposed to the vacuum process chamber and an outside exposed to atmospheric pressure, the chamber body defining a through-opening for controlling vacuum within the vacuum process chamber, a plurality of rotatable vanes mounted within the through-opening for controlling a flow of gases through the through-opening where each rotatable vane includes a cooling flow pathway in fluid communication with and disposed longitudinally along each rotatable vane, and a drive mechanism disposed on and connected to an outside of the throttle chamber body for rotating the plurality of rotatable vanes to vary the flow of process gases.

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

Abstract: A dual damper assembly (44) having rotatable dampers (46, 48) operated in a predetermined relative phase relationship within separate passageways (34, 36) is provided for use with food treatment systems such as a smokehouse (20) in order to control the tendency of the dampers (46, 48) to flutter and thereby alter the desired relative orientation of the dampers (46, 48). The dual damper assembly (44) includes a drive assembly (50) serving to rotate the dampers (46, 48), as well as a brake assembly (52) operably coupled with one of the dampers (46, 48). The brake assembly (52) has a rotatable disc (76) secured to a damper rod extension (58a), with an associated caliper assembly (78) including brake pads (94, 96) engaging disc (76) in order to control damper flutter.

Abstract: The present invention relates to a breath controlled air inlet valve for controlling a flow of air supplied to a wearer of a facemask, the valve permitting the flow of air when a wearer breathes in and restricting the flow of air when the wearer breathes out. The valve includes an inlet, an outlet, one or more pivotable shutters, and a shutter articulating mechanism for articulating the one or more shutters between an open state and a closed state. The shutter articulation mechanism actuates in response to the respiration of the wearer. The valve also enables a positive pressure to be maintained within the facemask by permitting an amount of air to flow around the one or more shutters when the one or more shutters are in the closed state.

Abstract: A louvre-type airflow regulator (10) for a mine passage comprises a plurality of louvre blades (12, 14, 16). Each blade is adapted for mounting in a frame (20). Each blade can pivot in the frame around a lengthwise axis between a predetermined position in which the louvre blades combine to close or restrict at least a portion of the passage, and an open position in which air is able to readily flow between the louvre blades and through the passage. A biasing mechanism is provided for acting on each louvre blade such that, in use, each louvre blade can be maintained in the predetermined position until a predetermined airflow against the louvre blades is reached.

Abstract: The present invention relates to a valve device for regulating a fluid, particularly a gaseous fluid, in a conduit portion, comprising a valve body fixed to a support spindle extending transversely into said portion and mounted with the ability to rotate therein, said conduit portion comprising, on either side of said spindle, opposing internal steps forming two bearing surface portions for corresponding edge parts of said valve body, in the closure position thereof, each step extending substantially over approximately half of the internal circumference of the conduit portion in the region of the mounting position of the support spindle.

Abstract: A valve is provided for controlling a flow of a fluid between a first environment and a second environment. The valve includes a frame adapted to fit within a perimeter of an aperture in a divider separating the first environment from the second environment. The valve additionally includes a first gate movable within the frame to control a flow of the fluid through the aperture between the first environment and the second environment. The first gate includes a substantially aerodynamically clean surface substantially free from protrusions disrupting the flow of the fluid over the first gate surface. Additionally, the first gate includes a trailing edge having a baffle adapted to cover an aft edge of the frame when the first gate is positioned to have a small opening angle. The baffle includes a plurality of 3-D notches in a front side of the baffle.

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: A damper assembly in which the position of the damper blades is controlled by an electric powered actuator. The powered actuator rotates a threaded lead screw shaft attached to an operator means attached to the damper blades of the damper, which causes the damper blades to open and close or be positioned somewhere in-between. The actuator can be controlled by sensors in a remote location. The actuator allows the damper to be modulated to set up pressure differentials and to be closed well in advance of oncoming smoke, fire, or other detected toxic fumes. There are a variety of nuts and gear arrangements coacting with the lead screw to drive the operator.

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 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: 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.

Abstract: A throttle gate valve (10) including an upright, generally rectangular valve housing (12), in which is positioned a linearly movable gate valve (32) for closing off a thru-opening (15) formed in the lower part of housing (12). A pneumatic actuator assembly (14) is provided for moving the gate valve between its opened and closed positions. A throttle vane assembly compartment (16) forms the lower side of valve housing (12) and frames thru-opening (15), and includes a set of throttle vanes (18) rotatably positioned within thru-opening (15), and a drive actuator compartment (20) and motor (21) for controlling the position of throttle vanes (18). A drive actuator (51) is provided for rotating vanes (18) and is sealed by a bellows shield (70) at the point where the drive actuator extends into the interior of the housing.