Class / Patent application number | Description | Number of patent applications / Date published |
454239000 | Including automatic control means | 53 |
20080311839 | HEAT EXCHANGING VENTILATOR - A heat exchanging ventilator comprises a temperature isolating body including an air admitting passageway and an air venting passageway couplingly arranged therein and allowing to conduct heat with each other. The two ends of the air admitting and venting passageways are in communication with the indoors and outdoors, respectively, and the air admitting and venting passageways are provided at inlets thereof with suction fans, individually, so as to let fresh air to be sucked from the suction fan of the air admitting passageway, while the indoor air may be vented from the suction fan of the air venting passageway, thereby exchanging air. Likewise, by means of the heat conductivity of the air admitting and venting passageways with each other, the indoor air temperature inputted from the air admitting passageway is approximately equivalent to room temperature. | 12-18-2008 |
20090075581 | COOLING AND VENTILATION DEVICE - A cooling and ventilation device comprises a product inlet, a product outlet, a waste inlet, a waste outlet, a waste channel connecting the waste inlet to the waste outlet, an evaporative heat exchanger having a primary channel connected between the product inlet and the product outlet and a secondary channel connected between an outlet from the primary channel and the waste channel, a flaw control element effective to control flow from the secondary channel to the waste channel and a controller selectively controlling the flow control element to thereby control flow from the secondary channel to the waste channel. The product inlet may be connected to a suitable source of outside air and the product outlet supplied to a habitable space such as the interior of a building or vehicle. The waste inlet may receive expelled air from the habitable space, which is subsequently exhausted to the environment via the waste outlet. In this manner, a device is achieved that can provide all of the benefits of evaporative cooling and ventilation while only requiring two air inlets and two air outlets. | 03-19-2009 |
20090117843 | COOLING APPARATUS AND METHOD - A cooling apparatus and method for temperature sensitive components or equipment housed in an enclosure are provided. The cooling apparatus and method removes hot air from the enclosure upon power or air conditioner failure or rise in temperature. The cooling apparatus and method helps to regulate the temperature of air in the enclosure. The cooling apparatus and method may be combined with existing enclosures either as a primary or auxiliary or “back-up” cooling system. | 05-07-2009 |
20090247064 | VENTILATING SYSTEM AND VENTILATING SYSTEM CONTROL METHOD - To provide a ventilating system and ventilating system control method capable of advancing energy conservation. A controller sets a static pressure setting value based on the airflow of the system as a whole, calculated from the airflow of venturi air valves of fume hoods that are operating, and controls the speed of rotation of a fan based on the static pressure setting value and the static pressure within a main duct. Doing so enables control of the speed of rotation of the fan to be performed while ensuring the airflow of the ventilating system, thus making it possible to prevent wasted motive force of the fan, even when the airflows of each of the venturi air valves are not identical and even when the changes in resistance of the branched duct system relative to the various changes in airflow are not identical, with the result that it is possible to advance energy conservation. | 10-01-2009 |
20100105311 | Ventilation blower controls employing air quality sensors - A fresh air ventilation system in a building having an outside wall exhausts contaminants, such as stale or noxious air, through the outside wall and takes in fresh air. A remote switch sets a mode of operation of the ventilation system. One or more strategically placed air quality sensors are located within the building. The sensors may be connected wirelessly through a multiplexor interconnect system to operational control the fan of the exhaust system. In response to the detection of a contaminant above a pre-selected level by a sensor, the relay controller for the sensors resets the remote switch for continuous high speed operation to evacuate the contaminants from the building through either special ducts or the conventional air ventilation ducts within the building. | 04-29-2010 |
20100159819 | DUCT ASSEMBLY AND METHOD OF USING THE DUCT ASSEMBLY IN AN ATTIC - A duct assembly for disposition in an attic of a building includes a first vent and a duct. The first vent defines an opening for fluidly communicating with air in an exterior of the building. The duct includes an elongated side defining a passage. The elongated side extends between a first end and a second end with the first end coupled to the first vent and with the passage in fluid communication with the opening of the first vent. The duct includes an end plate sized larger than the passage and sealed to the second end covering the passage at the second end. The elongated side includes an unperforated portion being unperforated and a perforated portion defining a hole for providing fluid communication from the opening of the first vent to the hole. | 06-24-2010 |
20100167636 | ACTIVE VENTS FOR COOLING OF COMPUTING DEVICE - Apparatus and methods of cooling a computing device using active air vents. Embodiments include active air vents capable of dynamically changing the pattern of inlet airflow into the housing of the computing device and selectively directing airflow to cool heat-generating components on need basis. Embodiments include active vents coupled to an actuation mechanism to preferentially open and close the active air vents so that inlet airflow into the housing can be regulated based on the cooling requirement of heat-generating components in the housing. Embodiments also include a control module to determine the cooling requirement of the components of the device. | 07-01-2010 |
20100285731 | INTELLIGENT ENERGY SAVING VENTILATION CONTROL SYSTEM - An intelligent energy saving ventilation control system capable of drastically reducing power consumption of the system. The system includes suction and exhaust ducts having a predetermined shape, a pre-filter disposed at an entry region of the suction duct, and a composite filter disposed behind the pre-filter. The system includes a fan motor disposed between the suction and exhaust ducts to linearly control an internal suction pressure in the suction duct; a turning angle motor for controlling a turning angle of the composite filter; an outdoor air sensor for measuring freshness of outdoor air, converting the measured result into an electrical signal, and outputting the signal; and a control unit for controlling operations of the turning angle motor and the fan motor in order to control an aperture angle of the composite filter and an internal pressure in the suction duct. | 11-11-2010 |
20100291857 | VENTILATION SYSTEM AND CONTROLLING METHOD OF THE SAME - A ventilation system and a controlling method of such a ventilation system are provided. The ventilation system may exhaust internal air from and draw fresh external air into a designated space. When an outdoor temperature is below a freezing point, some of the internal components of the ventilation system may be damaged due to the low external air temperature. This ventilation system controls operation of a supply fan and/or an exhaust fan based on the temperature of supplied and/or exhausted air to prevent such damage. | 11-18-2010 |
20110076934 | Ventilation Device with Alternating Airflows - The invention relates to a ventilation device ( | 03-31-2011 |
20110105012 | Device for measuring and regulating a volume flow in a ventilation pipe - A device for measuring a volume flow in a ventilation pipe ( | 05-05-2011 |
20110111689 | VENTILATOR - A total heat exchanger unit includes a controller for, upon receipt of a stop signal for stopping optional ventilation operation, terminating the optional ventilation operation and starting forced ventilation operation, and upon receipt of a start signal for starting the optional ventilation operation, terminating the forced ventilation operation and starting the optional ventilation operation. The controller allows intermittent operation of an air supply fan and an exhaust fan during the forced ventilation operation. | 05-12-2011 |
20110143647 | Engine compartment cooling system - In combination with an engine compartment including an engine, a hood, and at least two front quarter panel side walls defining an interior engine compartment, an engine compartment cooling system includes a clear hole made in at least one of the side walls positioned between a passenger compartment and a forward portion of a fender wheel well. At least one axial fan assembly has a fan housing, a plurality of fan blades, a motor shaft, and a fan motor. The fan assembly is mounted in the clear hole. A fan motor controller is connected to the fan motor, and a heated air flow path, which originates from the engine, is exhausted outwardly through the fan assembly into an ambient air flow for cooling of the engine compartment. | 06-16-2011 |
20110151766 | RESIDENTIAL INTEGRATED VENTILATION ENERGY CONTROLLER - A residential controller is described which is used to manage the mechanical ventilation systems of a home, installed to meet whole-house ventilation requirements, at the same time reducing energy costs. This is achieved in part by shifting the ventilation load of the whole-house system to off peak hours and by taking into account exogenous mechanical ventilation induced by other systems. The controller is linked by wire or wirelessly to other house ventilation systems using any one of a number of communication protocols, sensing the on-off status of such exogenous systems. An operational algorithm preloaded and/or modified at the point of use is used to control the on-off status or fan speed of a whole-house ventilation fan which forms a part of the home ventilation system, the operating status of the whole-house fan in part responsive to the status of other home ventilation systems, and in part based on time of day. | 06-23-2011 |
20110189937 | HEAT EXCHANGE VENTILATOR - A heat exchange ventilator includes a plurality of heat exchanger elements provided with a heat-exchanger exhaust airflow path and a heat-exchanger intake airflow path. Exhaust airflow and intake airflow are guided to pass through one of the plurality of heat exchanger elements, and the exhaust airflow and the intake airflow are switched to the next heat exchanger element in a sequential order when a state of the heat exchanger element comes to a predetermined condition set based on adverse influences of ice formation inside a heat-exchanger exhaust airflow path. The structure prevents the heat exchanger element from icing to avoid the adverse influences, thereby making it capable of exerting the fundamental heat exchanging and ventilating function continuously. | 08-04-2011 |
20110223850 | METHOD AND SYSTEM OF VENTILATION FOR A HEALTHY HOME CONFIGURED FOR EFFICIENT ENERGY USAGE AND CONSERVATION OF ENERGY RESOURCES - A method provides a ventilation control compliant with an adopted ventilation standard for efficient energy usage and conservation of energy resources. The method includes operating a home energy system to generate solar energy within a daily active period and draw fresh air from an ambient region, setting a daily ventilation period as a fractional period of a day, the ventilation period being coincident with the active period during a heating period for the home or a time period after the active period during a cooling period for the home, determining a target volume, determining a flow rate for delivering the fresh air during the ventilation period, performing ventilation in the ventilation period to deliver the fresh air into the home using the flow rate, and monitoring an accumulated total ventilation volume of the delivered fresh air until the accumulated total ventilation volume is within a vicinity of a target volume. | 09-15-2011 |
20110230131 | METHOD FOR REGULATING ROOM COMFORT VARIABLES - An appropriately treated flow of air is supplied to a room in an automatically executed pulsed operation, in which the air flow is alternately switched on and switched off. The air flow is switched off independently of the room usage state if the regulated room comfort variables lie within a respectively assigned comfort band. If at least one of the regulated room comfort variables lies outside the comfort band assigned to it, the flow of air minimized in respect of its volume is supplied to the room. This means that ventilators used for the exchange of air will be operated at the lowest possible speed, optimized in respect of time and thereby with high energy efficiency. | 09-22-2011 |
20110263192 | Attic Ventilation System - Apparatus and method for venting an attic where a central controller is connected to at least one temperature detector located inside the attic, at least one other temperature detector located outside of the attic, at least one attic vent clamp which is located in the roof to permit airflow through the roof when open to facilitate ventilation of the attic space, and at least one attic exhaust fan located within the attic. Data from the temperature detectors is processed by an algorithm in the central controller which, based on the information provided by the temperature detectors, operates of at least one attic exhaust fan and attic vent clamp either simultaneously or independently to control the temperature of the air in the attic. | 10-27-2011 |
20110287705 | Control System for the Climate in a Spatial Environment for Organisms, Spatial Environment Adapted Thereto, Control System and Program Therefor - Controls for the climate in a space ( | 11-24-2011 |
20110300790 | CONTROL DEVICE FOR VENTILATION AND AIR CONDITIONING SYSTEMS - The invention relates to a control device for room air managing systems, comprising at least one or more rooms ( | 12-08-2011 |
20120003916 | Ventilating device - A ventilating device includes a housing; a gas concentration detector; a passage portion defining an outside air passage and an inside air passage; a permeable membrane disposed at an interface between the outside air passage and the inside air passage; an air sending portion to generate at least one of a flow of outside air in the outside air passage and a flow of inside air in the inside air passage; and a controller. The controller controls at least one of the flow of inside air and the flow of outside air by controlling the air sending portion, based on a gas concentration of a predetermined gas detected by the gas concentration detector. | 01-05-2012 |
20120015597 | Method and Apparatus for Attic Fan Power Controller with Remote Control - 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. | 01-19-2012 |
20120028560 | Fresh Air Recovery System - The present invention, accordingly, provides a fresh air recovery system preferably including at least one intake opening in a first wall defining a portion of an enclosed space allowing air on an exterior side of the first wall to pass through the first wall into the enclosed space; and at least one exhaust opening in a second wall defining a portion of the enclosed space allowing air on an interior side of the second wall to pass through the second wall into an ambient environment external to the enclosed space. | 02-02-2012 |
20120034861 | APPARATUS AND METHOD FOR COOLING HOUSED SPACES - A cooling system for housed spaces, in particular telecommunication devices equipped with electronics cabinets in the form of containers, providing both an alternative solution to air conditioning units and a combined solution with existing cooling devices, wherein the energy consumption of the device is to be reduced to a minimum, among other things by employing a hybrid turbine. | 02-09-2012 |
20120100797 | Remote zone balancing damper and air flow sensor system - A remote zone balancing damper and air flow sensor system comprising a differential pressure air flow sensor, a damper having an actuator, a remote terminal connected to the air flow sensor and the actuator, the remote terminal disposed a predetermined distance from the duct, the air flow sensor and damper mounted in a duct, and a detachable controller that is connectable to the remote terminal, the detachable controller configured to receive a signal from the remote terminal and to provide power to the actuator and thereby position the damper according to the calculated air flow. | 04-26-2012 |
20120164931 | OPERATIONAL NOISE CONTROL METHOD FOR AIR CONDITIONER - An operation noise control method for an air conditioner includes: a step (S | 06-28-2012 |
20120252345 | Ventilation Systems and Methods - This application describes methods and systems for ventilating a building. A method for ventilating a building includes drawing in air, using a central fan, for heating or cooling at least a portion of the building and exhausting air from the building using at least one exhaust fan. The exhaust fan can be automatically operated during time periods when the central fan is not switched on. The method further includes automatically opening a damper, during at least a portion of the time periods, such that fresh air enters the building through the damper | 10-04-2012 |
20120315837 | VENTILATION GAS MANAGEMENT SYSTEMS AND PROCESSES - A ventilation gas management system and process for an enclosure adapted to contain fluid supply vessel(s) and through which ventilation gas is flowed to provide safe operation in the event of leakage of fluid from a vessel. Ventilation gas flow is modulated to accommodate various hazard levels associated with the deployment and operation of such enclosure containing fluid supply vessel(s), e.g., a gas box or gas cabinet in a semiconductor manufacturing facility, thereby achieving reduction in ventilation gas requirements otherwise required for such deployment and operation. | 12-13-2012 |
20120329380 | Ventilation System with Controllable Air Input and Output - The invention discloses a ventilation system including an inner, an outer tube and an air intake and exhaust apparatus. The inner tube has one end extending in a radial direction, wherein an air outlet and an air outlet are formed on the inner tube. An exhaust channel is formed between the inner and outer tubes, and the supporting member is disposed in the exhaust channel. The air intake and exhaust apparatus comprises an elevating member, a plurality of driving members and a cover plate. The elevating member has a connection block. The driving members are made of expandable material. The cover plate is rotatably coupled with the inner tube and has a connection portion. The connection portion abuts against the connection block when the driving members are not expanding. The connection portion of the cover plate disengages from the connection block when the driving members are expanding. | 12-27-2012 |
20130017774 | HVAC APPARATUS WITH HRV/ERV UNIT AND VERTICAL FAN COIL UNITAANM Zorzit; VittorioAACI WoodbridgeAACO CAAAGP Zorzit; Vittorio Woodbridge CAAANM Chu; ShengAACI ScarboroughAACO CAAAGP Chu; Sheng Scarborough CA - An apparatus for heating, ventilation and/or air conditioning of an interior space includes a heat exchanger core and a heating/cooling device in fluid connection with the heat exchanger core. A recirculation port is arranged between a supply air chamber and an outside air chamber. A damper is adapted to move between a first position in which the damper blocks the recirculation port and a second position in which the recirculation port is unblocked. When the damper is in the second position, at least a portion of supply air is guided to flow from the supply air chamber through the outside air chamber to the heat exchanger core so as to defrost the heat exchanger core. | 01-17-2013 |
20130029580 | SAFETY CONTROLLER FOR AN ACTUATOR - The invention relates to a safety controller for an actuating drive ( | 01-31-2013 |
20130040549 | ECONOMIZER HAVING SOURCE-SPECIFIC DAMPER BLADE ASSEMBLIES AND HEATING, VENTILATION AND AIR CONDITIONING UNIT EMPLOYING THE SAME - An economizer having a first air inlet, a second air inlet and an air outlet, a method of operating an economizer and a heating, ventilation and air conditioning (HVAC) system employing the economizer. In one embodiment, the economizer includes: (1) a first damper blade assembly in fluid communication with the first air inlet and the air outlet and having a first plurality of damper blades configured to move in parallel and (2) a second damper blade assembly in fluid communication with the second air inlet and the air outlet and having a second plurality of damper blades configured to move in opposition. | 02-14-2013 |
20130040550 | SYSTEM AND METHOD FOR VENTILATING A DEFINED SPACE - The present invention relates to a system ( | 02-14-2013 |
20130045671 | SYSTEM USING OUTDOOR AMBIENT AIR TO COOL WALK IN COOLERS AND OTHER AREAS - A system cools a desired region, such as a walk-in cooler, by taking cool ambient outdoor air and delivering that air into the desired region. The system uses an outdoor temperature sensor so that any time the outdoor temperature falls below a desired degree, the thermostat can turn on fans and open backdraft dampers to bring in cold air. This process by-passes existing coolers, compressors and the like of an existing system, saving the user the high cost associated with conventional walk-in coolers. | 02-21-2013 |
20130171922 | METHOD FOR CONTROLLING A VENTILATION SYSTEM FOR THE VENTILATION OF AN ENCLOSURE AND A VENTILATION SYSTEM - A method for controlling a ventilation system for the ventilation of an enclosure. The ventilation system includes two or more ventilation units, which each selectively and repeatedly can be controlled to establish an air flow to and/or from the enclosure. The method includes the steps of: determining information regarding operational conditions of one or more of the two or more ventilation units by measuring the air flow through or the pressure differential across the ventilation units, generating operation control data for one or more of the ventilation units from information regarding operational conditions determined for at least one other of the ventilation units, and controlling the operation of one or more of the two or more ventilation units by applying the generated operation control data. The invention further relates to a ventilation system for ventilating an enclosure. | 07-04-2013 |
20130178145 | CONTROLLED ATMOSPHERE SEA VAN CONTAINER INCLUDING CARBON DIOXIDE SCRUBBER CURTAIN - A scrubber configuration for controlling carbon dioxide levels in a shipping container containing respiring produce is disclosed. The scrubber is made up of a curtain which includes a gas-selective membrane having a CO | 07-11-2013 |
20130237140 | INTEGRATED SELF-CONTAINED PLENUM MODULE - The present invention discloses a plenum module with compartmentalized interior that is subdivided, and partitioned into separate chambers by a set of wall panels. | 09-12-2013 |
20130331021 | RADON DETECTION AND MITIGATION IN A BUILDING AUTOMATION SYSTEM - Radon detection or sensing is provided within a building automation system for a site (e.g., building or campus). As such, one or more short-term and/or long-term radon levels may be detected or monitored. The radon levels are monitored from a remote location. The building automation system may be programmed to automatically respond to a specific (e.g., unsafe) radon level and/or a change in one or more radon levels, or combinations thereof, in order to mitigate or reduce the monitored or detected radon levels. Trending, pattern comparison between radon level and other measured information, automated response, interaction or response between different radon sensors, or combinations thereof may be provided by integrating one or more radon sensors into a building automation system. | 12-12-2013 |
20140017989 | POWER SYSTEM ENCLOSURE - A power system enclosure is provided. The power system enclosure includes a box, and a ventilation system. The ventilation system includes an enclosure inlet, and an enclosure exhaust. The enclosure inlet and the enclosure exhaust are disposed outside the box. The enclosure inlet is connected to the box to allow entry of air. The enclosure exhaust includes an enclosure exhaust, and one or more gas detectors. The exhaust duct is connected to the box to route gases from the box. The gas detectors are disposed in the enclosure exhaust to detect and generate a signal indicative of a presence of carbon monoxide in the gases. | 01-16-2014 |
20140080402 | Adjustable Air Flow Restrictors - Apparatuses and methods are described for adjusting air flow in a forced-air delivery system. | 03-20-2014 |
20140106660 | HRV/ERV WITH IMPROVED AIR FLOW BALANCING AND METHOD OF OPERATING THE SAME - A heat and energy recovery ventilation unit for a building, having an inside and an outside. The unit including a main body having a fresh air inlet and an indoor air outlet on one side and a fresh air outlet and an indoor air inlet on the other side and having an air to air heat exchanger within the main body and connected to each of said inlets and outlets to define respective air flow passageways for each of said indoor air and said fresh air, the heat exchanger permitting heat and energy exchange between said indoor air and said fresh air. Also included is a first variable speed blower and a second variable speed blower and at least one electronic air flow sensor to measure at least one of the air flows the air flow sensor producing at least one electronic signal related to the sensed air flow. Also included is a controller for receiving the data signal, the controller using the data signal to control at least one of the variable speed blowers to provide a balanced fresh air inflow and indoor air outflow through the ventilation unit. A method of operating the unit is also disclosed. | 04-17-2014 |
20140113542 | Method and Apparatus for Solar Fan Controller - A method and apparatus for solar fan controller have been disclosed. In one version a solar fan controller (SFC) uses inputs about temperature, humidity, weather, and fan status to control a fan. | 04-24-2014 |
20140134938 | VAPOR MITIGATION SYSTEM, VAPOR MITIGATION CONTROLLER AND METHODS OF CONTROLLING VAPORS - A vapor mitigation system includes at least one vacuum pipe configured to collect vapors beneath a floor of a building, and a blower coupled to the at least one vacuum pipe. The blower is configured to create a vacuum under the floor of the building. The vapor mitigation system includes a controller configured to control a speed of the blower. The controller adjusts the speed of the blower in response to a level of vacuum created under the floor of the building. | 05-15-2014 |
20140248831 | HYBRID VENTILATION APPARATUS CAPABLE OF BOTH NATURAL AND FORCED VENTILATION - Disclosed herein is a hybrid ventilation apparatus capable of both natural and forced ventilation. In the case of a natural ventilation mode, a worm gear is rotated in a normal direction by drive force of a drive unit under control of a control unit so that a pressing member engages with a rotation guide protrusion and rotates a damper, thus opening a flow passage, and then the worm gear is reversely rotated by drive force of the drive unit to return the pressing member to its original position, thus allowing a user to rotate a roller upwards and downwards and rotate the damper so that the degree of opening of the flow passage can be adjusted. Thereby, rapid inflow of outdoor air can be blocked, and a cold graft phenomenon, in which the temperature of indoor air rapidly drops, can be prevented. | 09-04-2014 |
20140287672 | MIXER ASSEMBLY AND METHOD FOR OPERATING A MIXER ASSEMBLY - A mixer assembly for an air-conditioning system comprising a recirculation air line, connectable to a vehicle region to be air-conditioned, to remove recirculation air from the region, and an air-conditioning air line, connectable to an air-conditioning unit to remove conditioned air from the air-conditioning unit. A first mixing region, for mixing the recirculation air with the conditioned air, is connected to the two air lines. A second mixing region, for mixing the first mixing region air with recirculation air, is connected to the recirculation air line and the first mixing region. Also, a first supply line is connected to the first mixing region to supply air from the first mixing region to a first partial region of the vehicle region, and a second supply line is connected to the second mixing region to supply air from the second mixing region to a second partial region of the vehicle region. | 09-25-2014 |
20140349565 | Critical parameter monitoring system for improving the safety of personnel operating in hazardous areas - A critical parameter monitoring system for improving the safety of personnel working in a remotely located hazardous location possibly containing combustible materials include an oxygen and a temperature sensor carried by the personnel. The sensors are connected to a centrally located processor which displays the oxygen level and temperature present at the sensors and issues a warning when the measured parameters exceed preset levels. The monitoring system may be a part of a breathing apparatus which supplies air and voice communications from the centralized location to personnel working in a vessel purged with an inert gas. The measured oxygen level may also be used to conserve the quantity of inert gas used in the purging process while preserving the safety of the workers. | 11-27-2014 |
20150377504 | VENTILATION APPARATUS - A first ventilation apparatus of ventilation apparatuses which form a ventilation system includes: a first information transmission part ( | 12-31-2015 |
20160069576 | AIR SHOWER SYSTEM AND DRESSING ROOM - The present disclosure provides an air shower system and a dressing room. The air shower system includes: an air shower room, inside which is provided nozzle components; a particle monitor, configured to detect concentration of particles in air outside the air shower room; a controller, configured to control a working time of the nozzle component according to the concentration of particles in the air outside the air shower room. The dressing room is provided the above air shower system. | 03-10-2016 |
20160076784 | METHOD AND APPARATUS FOR PASSIVELY CONTROLLING AIRFLOW - A system and method for providing a substantially constant volume exhaust or ventilation air terminal system is shown for controlling exhaust and/or return airflow rates in a system having a central fan or ventilator. The system and method permits zone-by-zone or area-by-area airflow regulation or control in non-demand areas in response to a demand or call for ventilation in demand areas. In one embodiment, the system employs at least one constant airflow controller or regulator situated in a damper. Another embodiment shows a combination of a first constant airflow controller or regulator situated or mounted on a damper with a second constant airflow controller or regulator situated in a duct associated with the damper. In still another embodiment, a constant airflow controller or regulator is provided in a duct, and used in combination with a solid damper. | 03-17-2016 |
20160084513 | INTEGRATED BASEMENT VENTILATION APPARATUS - The present invention relates to an integrated basement ventilation apparatus, and more particularly, to an integrated basement ventilation apparatus which can improve a basement ventilation apparatus and thereby perform an adiabatic cooling using latent heat when air is supplied, and in a case of outbreak of fire, forcibly close a damper closed or opened by itself as air is exhausted, and allow general automatic control depending on a local air condition in a basement structure and which can control an increase in temperature in the basement structure at a low cost and enhance a fire safety, and in particular, can suppress the fire early and significantly enhance the quality of air in the basement structure, thereby significantly enhancing condition and maintenance of whole facilities. | 03-24-2016 |
20170232486 | CONTROLLING A FUME HOOD AIRFLOW USING AN IMAGE OF A FUME HOOD OPENING | 08-17-2017 |
20190145642 | FORCED AIR CONDITIONING SYSTEM | 05-16-2019 |
20220136728 | VENTILATION SYSTEM WITH AUTOMATIC FLOW BALANCING DERIVED FROM A NEURAL NETWORK AND METHODS OF USE - A ventilation system with automatic flow balancing derived from a neural network to consistently achieve a desired flow rate for inlet flow and/or outlet flow in various operating environments to optimize system performance. The system includes a ventilation device that includes an exhaust blower assembly with a blower motor and a control circuit having a mathematical equation that determines an estimated exhaust blower flow based upon select inputs. The ventilation device also includes a supply blower assembly with a blower motor and control circuit having a mathematical equation that determines an estimated supply blower flow based upon select inputs. When the estimated exhaust blower flow is different than an exhaust flow set point, the exhaust control circuit selectively alters power supplied to the exhaust motor. When the estimated supply blower flow is different than a supply flow set point, the supply control circuit selectively alters power supplied to the supply motor. | 05-05-2022 |