Abstract: The invention relates to a valve, especially an air entry and air exit ventilation valve for the passenger compartment of a motor vehicle, comprising a housing (1) and at least one closing flap (2) which rests against transversal elements (5) of the housing (1) when in an inoperative position and which is connected to the housing (1) over a supporting area. According to the invention, the housing (1) and the closing flap (2) are produced in a two-component injection molding method, whereby the housing (1) is comprised of a hard material component, and the closing flap (2) is comprised of a material component that is softer than said hard material component. The supporting area of the closing flap (2) and/or of the area of the housing (1) interacting therewith comprise(s) at least one retaining profile which engages inside at least one recess.

Abstract: In a vehicle air conditioner where air blown into a passenger compartment is heated in a heater core using cooling water for cooling a fuel cell system as a heating source, a flow amount of cooling water flowing into the heat core is controlled by a control valve based on a surplus heat quantity of the fuel cell system and a necessary heat quantity of the passenger compartment. Further, when the surplus heat quantity of the fuel cell system is smaller than the necessary heat quantity, an insufficient heat quantity is supplemented by a supplementary heater.

Abstract: A heating system has several heating devices with valves, controlled in dependence of the temperature, in different rooms, with the heating devices being supplied by a supply device with an adjusting member which acts upon a supply temperature. A control device activates the adjusting member. A heat requirement in the rooms is detected and the supply temperature is adapted accordingly. To keep the energy consumption low, a counter detects the number of rooms in which a heat requirement exists. The supply temperature is increased by a value which corresponds to a product of the number of rooms and a predetermined first temperature difference when the number of rooms is higher than zero. When the number of rooms is equal to zero, the supply temperature is decreased by a predetermined second temperature difference.

Abstract: A variable speed power flue ventilator with a thermostatically controlled motor cooling system. The thermostatically controlled cooling system employs an auxiliary motor cooling fan separate from the fan used by the power ventilator to extract exhaust gases. A thermostatic sensor switch actuates the motor cooling fan whenever the temperature in the exhaust fan motor housing rises to a preset value. The cooling fan then draws cool ambient air through the motor housing until the enclosed housing area reaches a second lower, preset temperature at which point the cooling fan is shut off by the thermostat.

Abstract: An air passage controlling system for selecting an air outlet mode of an air conditioning apparatus includes a driving shaft, an intermediate shaft, a driven shaft and a film door disposed between the shafts. The film door has a door opening through which air flows, and is disposed inside an air duct to be opposite to a duct opening of the air duct. The duct opening is opened and closed by moving the film door to select an air outlet mode. The driving shaft and the driven shaft are respectively connected to a driving pulley and a driven pulley which are linked via a wire. The driving shaft is rotated by a DC motor, and a rotation angle of the driving shaft is detected by a multi-rotation type potentiometer. The DC motor is controlled by an ECU according to the detected rotation angle of the driving shaft so that the film door is moved to a set position.

Abstract: A housing of a fume hood includes walls defining a chamber for containment of air therein. One of the walls defines an air passageway opening into the chamber, and a sensor is located outside of the chamber and measures airflow velocity through the air passageway into the fume hood. An elongate, perforated tubular member supported within the chamber includes a first end mounted to the wall of the chamber defining the air passageway in surrounding relation thereto, and a second, distal end substantially closed off from the contaminated air within the chamber whereby airflow through the air passageway into the fume hood generally must pass through a perforation in the tubular member to gain access into the air chamber. The tubular member extends across the width of the chamber and airflow velocity through the air passage is representative of overall air entry velocity into the air chamber.

Abstract: A heat transfer system is described for controlling the transfer of heat from a roof space into a living space of a building. The heat transfer unit (10) includes a flexible duct (14) and a ceiling vent (16) for transferring warm air from within the roof space (12) into a living space (18) below. An electric fan (20) located at the top end of the flexible duct (14) is arranged to draw warm air from the roof space (12) down through the duct (14) into the living space (18). A first temperature sensor (22) mounted adjacent the top end of the flexible duct (14) senses the temperature of the air within the roof space (12). A second temperature sensor (24) located in the room below senses the temperature of the air within the living space (18). An electronic controller (26) controls the operation of the electric fan (22) in response to temperature sensing signals from the first and second temperature sensors (22, 24) respectively.

Abstract: The air-treatment housing of an air-conditioning apparatus includes, in an upper face, an air outlet for demisting and aeration. A diffusion module is arranged between this upper face of the dashboard. This diffusion module features a demisting vent and aeration vents in its upper front region. The aeration vents are directed towards the passenger compartment and extend over the major part of the width of the dashboard.

Abstract: A damper assembly in which the position of the damper blades is controlled by a powered actuator which can be powered by a pneumatic drive, an electric motor drive, or other suitable power source. The powered actuator moves a drive shaft attached to the damper blades 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.

Abstract: An actuating device for actuating a shutter is provided with a vertical guiding plate formed on both sides of the shutter to extend in a lengthwise direction thereof, a united guiding groove divided into a triangular guiding groove having a widened width for guiding the vertical guiding plate and an inclined guiding groove having a narrow width and formed in an inclined form at a predetermined angle, a vertical movement member having a movement member protuberance provided with a hinge at which one end of an actuating rod is connected, the other end of the actuating rod being connected to a shutter protuberance formed on a rear surface of the shutter, and a slip prevention protuberance having a tooth shaped configuration protruding from a front surface thereof, a roller resiliently contacted on the slip prevention protuberance of the vertical movement member; and a driving motor whose rotating shaft is inserted into the roller for actuating the vertical movement member upwardly and downwardly by being supplie

Abstract: A system for providing humidified air includes a tank containing water and one or more heat exchanger tubes mounted in the tank. The system includes a burner assembly positioned to supply heat to the heat exchanger tubes. The system includes an induction fan for inducing combustion gases from the burner assembly through the heat exchanger tubes. Heat from the burner assembly in the heat exchanger tubes generates steam in the tank. The system includes a steam dispersion apparatus connected to the tank for humidifying air with the steam and a means for measuring humidity in a target location. The system also includes a controller for controlling one or both of the fuel supply to the burner assembly or the induction fan in response to the measured humidity in the target location.

Abstract: A room air conditioner of the type having a partition dividing indoor and outdoor sections is provided with vent and exhaust openings for exhausting air into the outdoor section and for venting outdoor air into the indoor section. A combination vent and exhaust door is mounted on the partition in the outdoor section. The combination vent and exhaust door is configured to be selectively operable to a first position wherein the vent opening is closed and the exhaust opening is open, a second position wherein both the vent opening and the exhaust opening are closed and a third position wherein the vent opening is open and the exhaust opening is closed. An actuator mechanism is mechanically linked to the combination door for selectively operating the door to each of the three positions.

Abstract: A method includes molding a set of deflector plates in a first mold with a first material, removing the deflector plates from the mold, and placing the deflector plates in a second mold, molding a duct to the deflector plates in the second mold using a second material. The molding includes forming an engaging rim in the duct for connecting the duct to another duct, and removing the deflector plates and the duct from the second mold. The deflector plates pivot with respect to the duct when the molding of the duct is finished.

Abstract: A simplified installation construction for a venting device which requires from a select one of several sizes of an input diameter a correlation to a matching diameter of a flexible conduit, the simplification resulting from using an interconnection of the diameters which once made, is difficult to disconnect but is known not to require a disconnecting mode, and wherein the sizes of input diameters not used are merely discarded. This is a noteworthy alternative to attempting to correlate the diameter of a flexible conduit to all input diameter sizes of the venting device.

Abstract: A electronic gaming system cooling device for resisting the over heating of a video game system. The electronic gaming system cooling device includes a housing having a top wall, a bottom wall and a peripheral wall integrally coupled to and extending between the top and bottom walls. The housing has an inlet port therein and an outlet port therein. A fan member draws air into the housing through the inlet port. The fan member is positioned over the inlet port. The game system is positioned over the outlet port such that air is brought into the house and blown across the game system to cool the game system.

Abstract: A climate control system includes an air evacuation and ventilation system thereof operable to withdraw air from an outflow air duct system and ventilate the withdrawn air to the outside prior to the system treating air withdrawn from an interior space of a building through an inflow air duct system. The air evacuation and ventilation system includes a ventilation duct having a first end in communication with an air outlet junction box and a second end having an opening located outside the building, an exhaust fan, supportably mounted within the junction box, for drawing air out of the outflow air duct system and into the ventilation duct, and a damper, supportably mounted within the junction box and pivotable between a closed position in which the damper prevents air from flowing into the ventilation duct and an open position in which air is drawn into the ventilation duct.

Abstract: Since the starting of an engine at a lower temperature is troublesome, the temperature of the engine is measured by a sensor. When the measured temperature is lower than a reference temperature, the pump is first switched on for circulating a thermal medium. This permits the thermal medium to transfer heat of the hot water stored in a hot water storage tank to the engine, hence warming the engine, decreasing the viscosity of the oil, and preventing the generation of dew in the engine to ease the start up of the engine.

Abstract: A liquid air freshener dispensing device for a duct for dispensing liquid freshener into air being heated and moved by a furnace. The liquid air freshener dispensing device for a duct includes a container having a top wall, a bottom wall and a peripheral wall extending between the top and bottom walls. A fragrant liquid is located in an interior of the container. An intake conduit extends through the top wall and into the interior of the housing such that a first end of the intake conduit is positioned in the housing and a second end of the intake conduit is located outside of the housing. A pump is in fluid communication with the second end of the intake conduit. The pump is operationally coupled to a power supply of a blower member. An exit conduit has a first end in fluid communication with the pump. The exit conduit extends into a duct such that a second end of the exit conduit is located in an interior space of the duct. The blower member blows air over a heating member and into the heating duct.

Abstract: An apparatus, system and method for improving air entrainment and sound attenuation of gases being discharged from one or more outlet portions of an exhausting device using an acoustic wind band. The acoustical wind band helps improve entrainment of ambient environmental air with the exhaust gases being discharged from the exhausting device resulting in a tight plume of high velocity flow which improves the effective stack height of the exhausting device. This is achieved by positioning the sections of the acoustical wind band in spaced relation thus forming passages that allow outside ambient environmental air to flow into the acoustical wind band to mix with and dilute the exhausting gas. The sections may also be positioned extending upward and inward at an angle to further enhance the entrainment of ambient environmental air with the flow of exhaust gas from the gas exhaust device.

Abstract: An air purging circulator is provided with a frustoconical reservoir, which promotes separation of dissolved and captured air form the water in a hydronic home heating system, to prevent stalling of the circulator and reduction or elimination of noise associated with air contained in the hydronic system.