Abstract: The present disclosure relates to a heating, ventilating, and air conditioning (HVAC) unit configured to supply conditioned air to a conditioned space. The HVAC unit includes a first exhaust fan capable of operating at variable speeds and a second constant-speed fan. The HVAC unit also includes a controller configured to determine a target airflow to be provided to the conditioned space, cause actuation of the first exhaust fan at a variable fan speed when the target airflow is greater than zero, and cause actuation of the second exhaust fan when the target airflow is greater than an airflow threshold.

Abstract: A compact temperature control system is provided for use within a building. The temperature control system may be designed with a floor-saving design that causes a condenser unit (CU) and a fan coil unit (FCU) to be supported at or near the ceiling. The temperature control system may allow for multi-zone temperature control by connecting multiple FCUs to a CU.

Abstract: An elevator air filtration system having an elevator car, an outdoor intake HEPA air filtration system that creates HEPA filtered air at a desired temperature, humidity and quantity of filtered outdoor air, and a retractable hose system that delivers the HEPA filtered air to the elevator car.

Abstract: A range hood includes a body having a space formed therein, and multiple grooves are formed in the inside of the space. The body includes an opening in the underside thereof. The opening communicates with the space. A case includes multiple rails which are slidably located in the grooves. A frame is located in the space and includes a blower. A driving unit is located in the space and connected to the case so as to lift and lower the case by moving the rails along the grooves.

Abstract: A wind turbine comprising a tower, a pod, at least one smoke detector in the region of the tower and/or in the region of the pod, at least one fan arranged in the tower and/or in the pod, and a control unit which detects a fire situation or smoke development in the wind turbine by means of the smoke detectors and activates the fans disposed in the tower and/or in the pod in order to suck away the smoke produced.

Abstract: An attic fan assembly and method for efficiently cooling an attic is provided. The assembly includes a motor, a fan blade assembly, a control unit, a condition sensor, and a speed sensor. The control unit receives a condition sensor signal from the condition sensor and determines a target speed. The control unit receives a speed sensor signal from the speed sensor and determines a present speed. The control unit sends a motor signal to control speed of the motor according to the conditions of the target speed and the present speed.

Abstract: Various technologies for monitoring operation of an air contaminant mitigation system, such as a vapor intrusion and/or radon gas mitigation system, are disclosed. For example, in one embodiment, a monitoring system includes an air contaminant mitigation system to exhaust vapors from a contaminated area to a designated area and a sensor module coupled to the air contaminant mitigation system to generate sensor signals indicative of a sensor condition of the air contaminant mitigation system. The system may also include a sensor controller to receive the sensor signals from the sensor module and generate sensor data indicative of the sensor signals. Additionally, the system may include a data server to receive the sensor data from the sensor controller, store the sensor data in a local database, and transmit information based on the sensor data to a remote computing device.

Abstract: A roof vent for supporting a solar panel is provided. The roof vent includes a vent member and a solar panel support element. The vent member is sized and shaped to mimic the appearance of a roof cover element. The vent member includes an upper portion and a lower portion, the upper portion separated from the lower portion by a gap. The solar panel support element is attached to the vent member.

Abstract: A smart ventilation system which performs the ventilation of indoors, increases the air quality in closed spaces and maintains air quality, which is positioned over a window and includes: a ventilation module on a main body, which is attached to the window so as to control the air passage between indoors and outdoors; indoor and outdoor sensor groups which measure the air values indoors and outdoors, respectively; and an electronic card which analyzes the sensor values and engages one or more of an air intake fan group, an air outlet fan group, a dehumidifier, and a humidifier as a result of the analysis. A device provides the necessary energy from the adaptor and water reservoir.

Abstract: A method and apparatus for attic fan power controller with remote control have been disclosed. In one version a solar array and/or a power line source provides energy for a fan determined by a control box which also interfaces with a remote control.

Abstract: A smart stuffed toy with at least one sensor for determining an atmospheric environment within the immediate proximity of the smart stuffed toy, a control unit and an air flow ventilation device embedded within the smart stuffed toy to provide air circulation and reduce the settlement of carbon dioxide. The air flow ventilation device comprises no blades or safe fan blades. The control unit controls the air flow ventilation device based on the sensor reading. Preferably, the front surface covering the air flow ventilation device is made of material different from the remaining surfaces of the smart stuffed toy.

Abstract: The present invention relates to a control means for a channel connectable to a central flow system configured to create an underpressure or overpressure in the channel. The control means is configured to increase or decrease the flow resistance in the channel. The control means is further configured to reduce flow resistance when the flow in said channel falls below a preset flow and to increase the flow resistance when the flow in said passage exceeds the said preset flow.

Abstract: A hybrid solar attic vent comprising a housing configured to be mounted on the roof or in the gable of a building in communication with the attic of the building. A photovoltaic solar panel is positioned to be exposed to sunlight and to power the attic fan when sufficient sunlight is present. An alternative source of energy, which may be the building's AC power, is connected to the fan through an electronic control module. The control module monitors the output of the solar panel and switches the fan's power source from solar power to the alternative source of energy when the solar panel produces insufficient electrical energy to power the fan. A thermostat allows operation of the fan by the alternative power source only when the temperature in the attic is above a predetermined threshold.

Abstract: An autonomous ventilation system includes a variable-speed exhaust fan, a controller, an exhaust hood, and an infrared radiation (“IR”) sensor. The exhaust fan removes air contaminants from an area. The controller is coupled to the exhaust fan and adjusts the speed of the exhaust fan. The exhaust hood is coupled to the exhaust fan and directs air contaminants to the exhaust fan. The IR sensor is coupled to the controller, detects changes in IR index in a zone below the exhaust hood, and communicates information relating to detected changes in IR index to the controller. The controller adjusts the speed of the exhaust fan in response to information relating to detected changes in IR index. The autonomous ventilation system also includes an alignment laser to indicate a point at which the IR sensor is aimed and a field-of-view (“FOV”) indicator to illuminate the zone in which the IR sensor detects changes in IR index.

Abstract: A carbon monoxide detector safety system comprising: a carbon-monoxide sensing and transmitting device; at least one door-opener receiver; and an onboard receiver connected to a wiring assembly of a vehicle; wherein said carbon monoxide detector safety system is useful to help prevent poisoning caused by carbon-monoxide accumulating within an enclosed space such as a garage. The carbon monoxide detector safety system acting in the capacity of an active carbon monoxide alarm system.

Abstract: Embodiments of the present disclosure are directed to an automated fresh air cooling system. The automated fresh air cooling system can include a whole house fan, an air intake, an air conditioner, and at least one controller. The controller can adjust the usage of the different components of the fresh air cooling system in order to reduce overall energy consumption as well as cost to a consumer. The system can be completely automated and no user input is required.

Abstract: The present invention provides methods, devices and systems for improving air quality. In one exemplary embodiment, the invention provides an air quality control system for maintaining or improving air quality within a room. The air quality control system includes a fan in fluid communication with a room. The fan is configured to vent air from within the room to control air quality therein. The air quality control system further includes a fluid flow sensor located proximate to a conduit. The fluid flow sensor is in communication with a wireless transmitter configured to generate a signal based upon fluid flow through the conduit. The air quality control system also includes a receiver configured to receive the wireless signal generated by the wireless transmitter, wherein the receiver is in communication with the fan to cause activation of the fan based upon the signal generated by the wireless transmitter.

Abstract: There is provided a safety system comprising at least one gas detector for detecting presence and concentration of at least one toxic gas inside the target space and for generating corresponding analog signals; (2) an analog-to-digital converter (ADC) connected to the at least one gas detector for converting the analog signals into digital signals; (3) a controller connected to the ADC for receiving the digital signals and generating commands as a function of pre-programmed instructions; (4) at least one exhaust fan connected to the controller for receiving the commands and operating as a function thereof for exhausting the at least one toxic gas outside the target space; and (5) at least one draught fan connected to the controller for receiving the commands and operating as a function thereof for generating a flow of air inside target space.

Abstract: A mobile communication device includes a heat transfer path to transfer heat generated in the mobile communication device to a heat exhaust component, in which the heat exhaust component generates air flow to exhaust heat out of the mobile communication device.

Abstract: An outerwear clothing article is disclosed. The outerwear clothing article may have an outer shell and at least one vent forming a passage through the outer shell. The at least one vent may have a closure element movable between a first position at which flow through the vent is substantially unrestricted, and a second position at which flow through the vent is restricted by the closure element. The outerwear clothing article may also have a sensor configured to generate a signal indicative of a temperature inside the outer shell, and an actuator controllable to move the closure element between the first and second positions based on the signal.

Abstract: The subject invention, Vertical Wind Turbine Generator with Ventilator, is an assembly consisted of three components: a vertical wind turbine assembly, a ventilator, and a generator. This assembly can be installed on roof opening, or any other locations that can facilitate to produce the maximum benefit of power generation and ventilation. The power generation unit is coaxially connected to, and housed within, the ventilator, which is further connected with the wind turbine assembly. When the wind turbines rotate, the ventilator unit and the power generator will be simultaneously driven by the wind turbines, whereby the power generator produces electricity and the ventilator exhausts air toward outdoors.

Abstract: In one aspect, the invention is directed to a kit of parts for a solar powered vent fan system for use in transporting air through a vent aperture (eg. a roof vent aperture) of a building. The kit of parts includes a motor/fan assembly, a motor/fan assembly mounting plate, a solar panel and a solar panel mounting structure. The motor/fan assembly mounting plate is configured to receive the motor/fan assembly and to substantially cover the vent aperture. The motor/fan assembly mounting plate includes a motor/fan assembly aperture to permit air to be transferred through the motor/fan assembly as a result of operation of the motor/fan assembly. The solar panel is connectable electrically to the motor/fan assembly to power the motor/fan assembly. The solar panel mounting structure is for mounting the solar panel in a suitable position to receive solar energy.

Abstract: A solar powered fan kit is provided for installation in a roof and in the ridge of the roof. The solar powered fan kit includes a fan attached to a fan bracket. The fan bracket is configured to be suspended from a roof within a ridge vent of the roof. A solar panel is attached to the roof to supply power to the fan.

Abstract: An indoor air quality system and method for a building. In an embodiment, the system includes a plurality of exhaust fans and a plurality of controllers. The exhaust fans each have a predetermined exhaust rate. The controllers are configured to monitor an actual volume of air exhausted by the indoor air quality system, and to automatically operate the exhaust fans to exhaust a desired volume of air during a time period. In an embodiment, the method includes setting parameters in a plurality of controllers, communicating to the controllers an operating state of the fans, determining a time at which to energize the fans such that the volume of air to exchange during the time period is exchanged during the time period, and energizing the fans at the determined time.

Abstract: A solar powered fan kit for installation in a roof vent. The solar powered fan kit includes a fan attached to a fan bracket. The fan bracket is shaped to fit within a groove in the roof vent. A solar panel is attached to the vent hood to supply power to the fan. A plurality of flexible clips secure the solar panel to the vent hood.

Abstract: A container data center includes a container, a number of server systems, and a number of fan apparatuses. Each fan apparatus includes a number of guides to guide airflow of the cooling airflow, a guide driver to drive the guides, and a micro control unit (MCU) to control the guide driver. Each server system includes a temperature sensor to determine temperature of the server system. The MCU of each fan apparatus is connected to two temperature sensors of two server systems nearest to the fan apparatus but not in the same row. The MCU receives two temperature signals from two corresponding temperature sensors and directs the guide driver to rotate the guides towards the server system with higher temperature.

Abstract: A basement ventilator for use in a building to reduce basement humidity and increase basement air circulation, the basement ventilator includes a household inlet duct for receiving and ducting household air of the building; an interior exhaust vent in communication with the household inlet duct for venting the household air into the basement; a basement air inlet duct for receiving humid air from a lower region of the basement of the building; an exterior exhaust vent in communication with the basement air inlet duct and the outside of the building for venting the humid air from the basement of the building to the outside; and a fan device in communication with the household inlet duct, the interior exhaust vent, the basement air inlet duct and the exterior exhaust vent for drawing household air into the household inlet duct and exhausting the household air into the basement through the interior exhaust vent and for drawing air from the lower region of the basement into the basement air inlet duct and exhaust

Abstract: A cooling container comprises a container housing with a chilled water storage tank including a first interface for receiving chilled water. The chilled water tank has a plurality of straight pipes joined by elbows connections to provide a folded path, the full path length being greater than the length of the container housing, and a second interface for outputting the chilled water. A number of interfaces within the container housing are configured to receive a chiller module or a free cool unit.

Abstract: An enclosure, which includes a box portion having a top wall, the top wall having at least one fan and at least one baffle; and a lid portion, which fits over the top wall of the box portion and creates at least one passage extending along a front wall and/or a back wall of the enclosure to allow airflow from within the box portion of the enclosure.

Abstract: A system and method for providing variable ventilation for a cooking environment. The system includes a plurality of cooking appliances, wherein each appliance has various operating parameters indicative of a cooking level of each appliance; a cooking event monitor operably connected to each of the cooking appliances and configured to: (1) determine a level of ventilation for each of the plurality of appliances based upon the cooking level of each appliance, (2) determine a control signal based upon the determined level of ventilation, and (3) transmit the control signal; a motor speed controller operably connected to the cooking event monitor and configured to receive the control signal; and at least one exhaust fan operably connected to the motor speed controller, wherein the motor speed controller adjusts a speed of the exhaust fan based upon the control signal.

Abstract: Systems and methods for controlling an exhaust gas fan system. The control system may control one or more components of the exhaust system to optimize system performance and improve energy efficiency. The control system may be designed to maintain a substantially constant pressure in the exhaust header and provide a substantially constant flow through the exhaust fans. The control system may include software and hardware that allow the control system to control one or more of: modulation of one or more by-pass dampers; adjustment of the nozzle outlet area; varying the speed of the fans; the number and staging of fans. By utilizing and controlling one or more of these functions, the amount of energy being used may be minimized/optimized.

Abstract: A system includes a turbine positioned above an opening on a building structure, wherein the turbine is configured to create a low pressure area in the building structure as a result of a rotation of the turbine. The system further comprises an electrical generator configured to convert wind power acting on the turbine into electricity. A battery may be configured to store the electricity, wherein the electric generator is further configured to drive the turbine to rotate.

Abstract: A hybrid solar attic vent comprising a housing configured to be mounted on the roof or in the gable of a building in communication with the attic of the building. A photovoltaic solar panel is positioned to be exposed to sunlight and to power the attic fan when sufficient sunlight is present. An alternative source of energy, which may be the building's AC power, is connected to the fan through an electronic control module. The control module monitors the output of the solar panel and switches the fan's power source from solar power to the alternative source of energy when the solar panel produces insufficient electrical energy to power the fan. A thermostat allows operation of the fan by the alternative power source only when the temperature in the attic is above a predetermined threshold.

Abstract: While a dryer is running, continuously automatically monitor operation of a dryer venting system, and continuously automatically determining if the dryer venting system is operating improperly, and if it is determined that the dryer venting system is operating improperly then automatically disabling the dryer. If the dryer starts running then automatically turning on a booster fan. Operation of booster fan is monitored by sensing the current drawn. Monitoring operation of the venting system through a first controller and automatically disabling the dryer through a second controller. Automatically turn off the booster fan if the dryer is not running. Automatically adjust operating parameters of the dryer venting system in an attempt to operate the venting system properly, and disabling the dryer if the venting system continues to operate improperly after adjustment. Check to determine if the dryer is drawing current to indicate the dryer is running.

Abstract: Exhaust capture and containment are enhanced by means of automatic or manual side skirts, a sensitive breach detector based on interference effects, a combination of vertical and horizontal edge jets, and/or corner jets that are directed to the center diagonally from corners. Associated control functions are described.

Abstract: A control system for disabling the fan of a heating, ventilating, and air-conditioning system upon the detection of an audible alarm, such as a smoke alarm. The preferred embodiment utilizes a tunable band pass filter/decibel level detector in conjunction with a microphone to detect an audible alarm. When an alarm is detected, the fan is disabled whether the HVAC is operating in heating, cooling, or manual fan “on” mode.

Abstract: A ventilating exhaust fan has a housing having a top, four sides, and an open bottom forming an air inlet. An exhaust outlet is located in one of the sides. A motor is housed within the housing and a fan is connected to the motor. The exhaust fan is mountable within an opening in a surface. The sides of the housing have a plurality of slots through which restraints can be inserted in order to connect the housing to the surface.

Abstract: The invention presents a ventilator capable of obtaining an optimum flow rate required in ordinary ventilation. The ventilator comprises an exhaust fan motor for exhausting room air by force, and a human sensor for detecting the presence of human body. It further comprises a control unit for controlling the fan motor by receiving a signal from the human sensor, and a flow rate adjusting unit for adjusting the ventilation flow rate by the exhaust fan motor. The control unit, when detecting a signal from the human sensor, operates the exhaust fan motor for a specified time at fixed flow rate, and while not detecting, it operates the exhaust fan motor all the time at ventilated flow rate adjusted by the flow rate adjusting unit. During this ordinary operation, the flow rate may be adjusted by the flow rate adjusting unit either steplessly or in multiple steps at small intervals, and thereby a ventilator capable of obtaining an optimum flow rate required in ordinary ventilation can be presented.

Abstract: A space conditioning system for a building including production and occupied spaces provides precise control of exhaust and space conditioning equipment by taking into account multiple conditions and by using predictive control. The control method and system are illustrated by a commercial kitchen ventilation application.

Abstract: A method is provided for monitoring and mitigating exhaust gas emitted from a vehicle in a closable structure. A remote monitoring device within the closable structure is trained in response to a training signal transmitted from a remote transmitter device. A remote engine start signal is intercepted within a receiving circuit of the remote monitoring device during an actual remote engine start operation. The exhaust gas emitted from the vehicle is monitored in response to receiving the remote engine start signal. A determination is made if an exhaust gas concentration level is greater than a predetermined threshold. A control signal is transmitted to a mitigation device for mitigating the exhaust gas within the closable structure when the exhaust gas concentration level is greater than the predetermined threshold.

Abstract: Certain embodiments of the present invention provide a system and method for improved, reliable carbon monoxide detection. The system includes a carbon monoxide detector for detecting carbon monoxide, an appliance powered by a fossil fuel, and a reliability module removing power supplied to the appliance when power to the carbon monoxide detector is exhausted. The reliability module may also remove power supplied to the appliance when carbon monoxide is detected above a threshold concentration. The reliability module may also remove power supplied to a control device controlling the appliance when power to the carbon monoxide detector is exhausted. The control device may include a temperature control. The system may also include a safety device that is activated when power to the carbon monoxide detector is exhausted. The safety device may include a fan. Additionally, the reliability module may include a switch for controlling power supplied to the appliance.

Abstract: A carbon monoxide ventilation system, comprising a carbon monoxide sensor, a fan, and a vent. The carbon monoxide sensor supplies power to the fan when a threshold level of carbon monoxide is detected. The fan includes a motor and a propeller which draws air into the fan unit, and expels the air through the vent. The sensor also includes an indicating device which produces an audio or visual indication that the threshold level has been reached. The indication continues until reset by a reset button.

Abstract: A toilet exhaust fan system which consist of a sensor, a timer and exhaust fan which, when placed In reasonable proximity to the toilet seat in a stud wall cavity, will remove the toilet odors to the Outside of the toilet area or room. The sensor will automatically detect a toilet user and activate the Exhaust fan. The sensor will also detect when the toilet is no longer in use and activate the timer Which will allow the exhaust fan to be deactivated within a preset time.

Abstract: A carbon monoxide ventilation system, comprising a carbon monoxide sensor, a fan, and a vent. The carbon monoxide sensor supplies power to the fan when a threshold level of carbon monoxide is detected. The fan includes a motor and a propeller which draws air into the fan unit, and expels the air through the vent. The sensor also includes an indicating device which produces an audio or visual indication that the threshold level has been reached. The indication continues until reset by a reset button.

Abstract: A ventilation system includes one or more exhaust fans and one or more make up air fans. Each fan has is driven by a motor operating at a constant speed. Each fan and motor are coupled by a torque converter, so that the torque applied to the fan is constant. Exhaust fan speed varies according to the ideal gas law, whereby the fan speed automatically varies in response to changes in system conditions, such as temperature and the associated changes in air density and resistance to the fan.

Abstract: Apparatus for removing excessive heat which has built up in a garage, including vents, movable louvers connected to each vent, exhaust fans, and a fan motor. The fan motor may be controlled by a manually-operated switch or a thermostat.

Abstract: A carbon monoxide ventilation system, comprising a carbon monoxide sensor, a fan, and a vent. The carbon monoxide sensor supplies power to the fan when a threshold level of carbon monoxide is detected. The fan includes a motor and a propeller which draws air into the fan unit, and expels the air through the vent. The sensor also includes an indicating device which produces an audio or visual indication that the threshold level has been reached. The indication continues until reset by a reset button.

Abstract: A room ventilation air inlet is mounted in a wall or ceiling to operate in conjunction with a central vacuum system as a suction source. Activation of a suction source connected by conduit to the inlet draws air from the room, removing odor and moisture. The air inlet has a valve to seal and open the air inlet. A single lever actuates both the valve and the central vacuum 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: A space conditioning system for a building including production and occupied spaces provides precise control of exhaust and space conditioning equipment by taking into account multiple conditions and by using predictive control. The control method and system are illustrated by a commercial kitchen ventilation application.