159 results about "Whole-house fan" patented technology

A low depth telescoping downdraft ventilator controlled by an electronic controller providing a precisely controlled and efficient way of removing gases and fumes is disclosed. The low depth telescoping downdraft ventilator has the ability to fit behind a built-in oven placed below a cook top unit. The telescoping downdraft ventilator has an almost infinitely selectable range of heights above a cook top with a built in oven. The ventilator collects and draws in exhaust fumes and smoke, filters it and re-circulates or expels it either outdoors or indoors. The inner member of the telescoping ventilator may house the exhaust fans and may move up or down without the use of mechanical switches for elevation detection and stopping. The ventilator may have sensors to detect temperatures, filter change need, fan speeds, telescoping stop points, energy consumption, resistance and voltage, enabling programmable set point operation.

A whole house fan system and installation methods configured to reduce noise generated by the fan are provided. The system generally includes a fan, a register, and a flexible duct extending between the fan and the register. The flexible duct has acoustical insulation properties, which helps to reduce sound transmission from the fan to the register. The fan system is configured to be mounted in the attic space of a house. The fan motor is suspended in the attic so that it does not have direct contact with any part of the building structure.

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.

A constructed enclosure, adjacent to an interior habitable space, uses a microprocessor-based control unit to operate enclosure openings to provide a multi-layer insulation barrier containing or creating heat, or providing a radiant barrier, isolating by open air, a thermal insulating layer from warm exterior surfaces, maximizing insulation values. The enclosed space, through the use of openings, which in one embodiment are windows, skylights and dampers connected to louvers, is heated by radiant exposure or cooled by natural air flow or exhaust fan. Return air is heated upstream from a forced air heating unit by traversing ductwork heated by the enclosure and by direct solar exposure from enclosure windows. Enclosure openings to the habitable interior spaces create air displacement drawing warm air out of the interior and fresh air in through exterior windows. The energy efficient system is tailored for immediate climate specific conditions.

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.

A total heat exchanger having a structure capable of achieving an enhancement in total heat efficiency, and a ventilation system using the total heat exchanger are disclosed. The total heat exchanger includes an air supply duct for guiding outdoor air to an indoor space, an air discharge duct for guiding indoor air to the outdoors, an air supply fan arranged at one side of the air supply duct, the air supply fan sucking the outdoor air, and supplying the sucked air to the indoor space, an air discharge fan arranged at one side of the air discharge duct, the air discharge fan sucking the indoor air, and discharging the sucked air to the outdoors, and a heat exchanging element arranged at a region where the indoor air and the outdoor air cross each other, the heat exchanging element heat-exchanging the indoor air with the outdoor air. The heat exchanging element has a shape causing the indoor air and the outdoor air to flow through the heat exchanging element while forming an acute angle with respect to each other.

A whole house fan system and installation methods configured to reduce noise generated by the fan are provided. The system generally includes a fan, a register, and a flexible duct extending between the fan and the register. The flexible duct has acoustical insulation properties, which helps to reduce sound transmission from the fan to the register. The fan system is configured to be mounted in the attic space of a house. The fan motor is suspended in the attic so that it does not have direct contact with any part of the building structure.

The present invention discloses an air fan turbine positioned horizontally or vertically in close proximity to the exhaust fan system of air handler systems. These turbine units catch the exhausted air flow from the exhaust ports of these air handler units to drive the turbine blades which are attached to a generator. As the propellor blades spin, they generate electricity. Thus, the man made air flow known as exhaust from the air handler systems is used to produce electricity. This invention not only uses man made air flow, but also repositions the air turbine 90° from a horizontal position to a vertical position to receive wind air from the atmosphere. When the air handler unit is turned off, a signal is sent to mechanically move the air turbine to the vertical position to redirect itself to then catch natural wind airflow on both roof top and ground mounted units.

The invention discloses a ventilation system for civil buildings, which is characterized in that a ventilation port and a natural ventilating and filtering device used for a wall or a glass curtain wall are arranged on the wall or the glass curtain wall of a civil building. When a room is in a sealing state, natural wind force and wind speed are utilized to arouse an indoor / outdoor atmospheric pressure difference to be used as a driving force to carry out fresh air introduction on outdoor air containing moisture, dust and noise after dedusting, dehumidifying, sound absorbing and noise reducing, and thus, indoor polluted air is diluted and reduced, and a carbon monoxide poisoning phenomenon is prevented. In the systemic technology, the ventilation path is that after flowing through door gaps and door ventilation ports, air flows through a mechanical exhaust fan arranged in a toilet and is forcibly exhausted to the outdoor through the mechanism exhaust fan, and thus, a negative pressure area is formed indoor, and purposes of continuously circulating fresh air for 24 hours in a room, improving indoor air quality and protecting human health can be achieved. The invention has the advantages of simple and reasonable structure, low carbon, energy saving, convenient maintenance and the like.

A system and method of controlling a ventilation system is provided based on a determination of local dew point and automatically activating an exhaust fan before condensate appears on structure and objects and ideally before visible condensation forms in the air of an enclosed area. Firmware in the control circuit detects the presence of hardware components 1 and operates a control circuit in one of a plurality of modes based on the detected hardware components that are coupled to the control circuit.

A fresh-air cooling system for a building structure having an unvented attic is provided. The system provides airflow pathways that allow outside air to be drawn through, and discharged from, a building having an unvented attic. Dampers with a low thermal conductivity regulate airflow through the building structure. The system allows a whole house fan to cool a building having an unvented attic. The system seals or otherwise alters airflow pathways through the building structure in order to reduce heat transfer between the building and the outside environment when the cooling system is not in use.

One vent extender method comprises providing the underside of an over-the-range type vent hood with an exhaust enclosure having an outlet opening and at least one inlet opening. The outlet opening is disposed upstream to the existing exhaust fan. An exhaust ducting system comprises a tube having a downstream end attachable to an inlet opening and an upstream end attachable to a first canopy. The exhaust ducting system delivers the suction power of the exhaust fan closer to the fume and odor source and guides the vapors toward the outlet opening of the enclosure. An improved method comprises the use of an intake ducting system enveloping the exhaust ducting system for delivering intake air right to the periphery of the cooking vessel. Another improvement comprises the use of a double-walled canopy with two separate top openings for connecting to an exhaust power source and an intake air source.

An exhaust system for expelling air from a building includes an outlet nozzle that improves entrainment of ambient air with the building exhaust air. The improved air entrainment results in increased exhaust air dilution and plume height to better disperse the exhaust air away from the building. The nozzle has an H-shaped outlet configuration with two lateral outlet sections joined by a central transverse outlet section. The nozzle has a pair of outer lateral walls, a pair of outer transverse walls, and a pair of sloped inner lateral walls that angle outwards from near an inlet end of the nozzle towards corresponding outer lateral walls. The nozzle can be part of the exhaust system at the outlet side of the exhaust fan within a windband that aids in entraining ambient air with the exhaust air exiting the nozzle.

The invention provides a safe and energy-saving monitoring terminal for household power and gas consumption. A liquefied gas sensor and a carbon monoxide sensor of the safe and energy-saving monitoring terminal are used for detecting harmful gases in a room and automatically controlling an exhaust fan to work, so as to exhaust the harmful gases; when the harmful gases can be still detected after the exhaust is continued for a period of time, the alarm is realized in sound, light and mobile phone short message ways; the work of a relay connected to an air conditioner and a socket and a power supply of the relay can be controlled in a keyboard-input, infrared remote control or mobile phone short message way; when doors and windows are opened, a power supply of the air conditioner is automatically closed by detecting a door / window magnetic control switch, so that the effect of saving energy is achieved; an LCD (Liquid Crystal Display) is used for displaying the states of each switch, each relay and each sensor in a liquid crystal way so as to bring convenience for observation and operation; and the states of each sensor, each switch and each relay can be remotely queried to learn the conditions in the house and the work of the relay can be remotely controlled in the mobile phone short message way.

A power ventilation system comprising an exhaust fan, a power supply, and a control system is provided for ventilation of a garage. The ventilation system may be controlled by a moveable barrier, interfaced to a weather seal of the garage door, or configured to allow power ventilation of the garage when the garage door is closed.

The image projection apparatus includes a heat generating member disposed inside the apparatus, an exhaust fan exhausting an air that has cooled the heat generating member to the outside of the apparatus, and a duct guiding the air from the heat generating member to the exhaust fan. An outflow opening of the duct is oriented in a direction different from an inflow direction of the air into an inflow opening thereof. At least one air guiding wall is provided inside the duct, which forms plural airflow paths within a cross section extending along the inflow direction and an outflow direction of the air. The apparatus is capable of reducing unevenness in flow rate of the air when guiding the air toward the exhaust fan using a bent-type duct.

A projector includes: an external housing; and an exhaust fan configured to suck an air within the external housing and discharges the sucked air to the outside, the external housing has a top and bottom surface crossing a vertical axis, an air discharge port through that the air discharged from the exhaust fan is discharged to the outside, and a side surface that connects the top surface and the bottom surface, the exhaust fan constituted by a turbo fan that has an impeller rotatable around a predetermined rotation axis, and the rotation axis extends along the vertical axis.

A whole building ventilation system mixing box that mixes exterior air with air from within the building, having one or more exterior air inputs, on or more interior air inputs with one or more mixed air outputs that re-circulates the mixed air to a whole building HVAC system having one or more ventilation fans. The whole building ventilation system mixing box being open to circulation and mixes the return air from the interior air input with the exterior air whether or not the exhaust fan is on so as to equalize pressure between the interior and exterior of the building. In addition a method of sizing a whole building ventilation system mixer box for mixing exterior air from outside the building with interior air from within a building is provided and includes the steps of determining a value one or more variables related to a building or the air around the building then constructing a whole building mixer box with an at least one damper therein that allows operation without the concomitant operation of an intake fan so as to equalize air pressure within the building to ambient outside pressure, then coupling, adjusting, operating the HVAC device to move air and drawing in cooled or heated air and equalizing the air pressure in the building with the addition of exterior air.

This invention offers a kind of exhausting apparatus with an air dividing case for water closet, comprises water closet, exhaust fan and conducts, wherein the exhausting apparatus having an inner chamber with outlet and inlet. The outlet is connected to an inlet of the exhaust fan through conduct, while the inlet is connected to the water closet through conduct. An adjustable air valve is provided between the inlet and the inner chamber, and the outlet of the exhaust fan is connected to outdoor through conduct. This invention can exhaust air with unpleasant odor inside water closets directly to outdoor to prevent harmful gas from inhaled by persons, but also make one set Apparatus possible to be used for multiple water closets and / or toilets. It may keep air in toilets brisk and venting.

A ventilation system for washroom, comprises a fan at the top of the washroom and a vent-pipe at the bottom of the washroom, characterized in that, the fan is an air suction fan for sucking fresh air outside, and the vent-pipe is the one for ventilating foul air inside and provided with an air ventilating fan therein, wherein the air ventilating fan is provided with a filter net at the front end thereof. The invention is provided with a vent-pipe based on the current ventilation systems for washroom to ventilate foul air inside from the bottom of the washroom, effectively avoid the dispersion of the foul air in the washroom, and guarantee the fresh air and breathing health of human.

The invention discloses an exhaust fan. The exhaust fan comprises a box and a volute fan. The box comprises a cover plate, a side plate and a bottom plate. A containing cavity is defined by the coverplate, the side plate and the bottom plate. The volute fan comprises a volute, a wind wheel and a motor, and the volute is fixed in the containing cavity of the box and comprises a front end plate, arear end plate and a side panel, wherein a cavity is defined by the front end plate, the rear end plate and the side panel, and the wind wheel is arranged in the cavity. The cover plate is provided with a gap, and an opening is formed in the side plate. The front end plate is provided with a first air inlet. The side panel is provided with an air outlet. The gap, the first air inlet, the cavity, the air outlet and the opening are in communication so that a first ventilation channel can be formed. The rear end plate is provided with a second air inlet. An air flue is formed between the side plate and the side panel. A runner is formed between the rear end plate and the bottom plate. The gap, the air flue, the runner, the second air inlet, the cavity, the air outlet and the opening are in communication so that a second ventilation channel can be formed, one ventilation channel is additionally arranged, the air inlet area is increased, efficiency is improved, and noise is improved.

The image projection apparatus includes a heat generating member disposed inside the apparatus, an exhaust fan exhausting an air that has cooled the heat generating member to the outside of the apparatus, and a duct guiding the air from the heat generating member to the exhaust fan. An outflow opening of the duct is oriented in a direction different from an inflow direction of the air into an inflow opening thereof. At least one air guiding wall is provided inside the duct, which forms plural airflow paths within a cross section extending along the inflow direction and an outflow direction of the air. The apparatus is capable of reducing unevenness in flow rate of the air when guiding the air toward the exhaust fan using a bent-type duct.

The invention discloses a heating device of a double-drum phase change heating radiator and a clothes drying room. The heating device comprises a water circulation assembly and an airflow circulation assembly. The water circulation assembly comprises a solar heat collection water tank, a water tank support, an evacuated collector tube, a heat source water outlet tube and a heat source water return tube. The airflow circulation assembly comprises an air inlet fan, an air inlet fan pipeline, a three-way reversing valve, an exhaust fan pipeline, an exhaust fan, a ventilation fan pipeline and a ventilation fan. The heating device further comprises a drum support assembly, a circulating pump, a pipeline water distributor, a pipeline water collector and a pressure regulating pump. The drum support assembly comprises a support and the double-drum phase change heating radiator fixed to the support. Compared with existing household heating equipment, the heating device of the double-drum phase change heating radiator can save water by more than 85 percent and electricity by more than 50 percent under the same heating condition, thereby having the advantages of energy conservation, environmental protection, zero pollution and the like.

The invention discloses a heat preservation breeding house which comprises a breeding house body, a heat preservation device and a ventilation device. The heat preservation device is an underground water circulating system and comprises a water inlet pipe, a water pump, a laying pipe and a water outlet pipe which are communicated with one another. The ventilation device comprises an air pump, an air inlet pipe and an exhaust fan which are communicated with one another. The water inlet pipe and the water outlet pipe are both communicated with underground water. The laying pipe is installed below a floor in the breeding house body. The air inlet pipe is in a U shape, and the lower portion of the air inlet pipe is located in the underground water. The exhaust fan is installed on a wall of the breeding house body. By means of the heat preservation breeding house, the indoor temperature and the indoor air are kept close to those of the underground water, and a comfortable environment is provided for growth of pigs.

An insulated cover for a whole-house fan includes a base defining an opening for disposal over the whole-house fan, and first and second, oppositely disposed, ceiling doors each hingedly connected to the base. In a closed configuration the ceiling doors each sit at an acute angle with respect to a horizontal plane corresponding with a bottom surface of the base. The base and ceiling doors are formed from thermal insulation board.

The present invention aims to provide a bathroom ventilation system having a bi-directional ventilation tube that exhausts internal air to the outside while supplying external air into the bathroom to allow for quick ventilation in the bathroom and to draw toilet odors as well as air in the bathroom out of the bathroom through an internal air traveling tube, thereby minimizing occurrence of odors.To achieve the above object, according to the present invention, a ventilation system for a bathroom comprises: an external air traveling tube 100 provided at an upper side of a ceiling panel of the bathroom and having an air intake fan 150 that takes air in from an outside and moves the taken-in air to an inside of the bathroom; an internal air traveling tube 200 provided at the upper side of the ceiling panel of the bathroom and having an air exhausting fan 250 that draws air from the inside of the bathroom to the outside; and a bi-directional ventilation tube 300 provided at a ceiling of the bathroom, the bi-directional ventilation tube 300 including an air exhausting part 310 having a side connected with the external air traveling tube 100 and another side connected with the inside of the bathroom and an air intake part 320 having a side connected with the internal air traveling tube 200 and another side connected with the inside of the bathroom.

The invention relates to the field of computer heat dissipation, in particular to an auxiliary heat dissipation protection device for a computer case, and aims to solve the problems that many devices are operated in a computer room at the same time, most of the devices are in an unattended state, and disasters occur frequently in nature, if a manager cannot arrive in time, serious property and data loss occurs. A computer is installed in a heat dissipation assembly, a fan rotates to dissipate heat of the computer, when the local temperature in the computer is too high, a case begins to slide between an air inlet fan and an exhaust fan in a reciprocating mode, the internal air flow is increased, local heat is reduced, and automatic cooling is completed. When a fire occurs, a fire protection assembly can ring to give an alarm to remind a worker to come to deal with the fire, if the worker sprays water to extinguish fire in the future, when an earthquake comes, an earthquake protection assembly tensions the whole device and the walls on the two sides through steel wire ropes, and equipment damage caused by the earthquake is prevented.

The invention discloses a ventilation system with an induction switch. The ventilation system comprises an air inlet fan, an air outlet fan, the infrared induction switch and a control panel, wherein the air inlet fan and the air outlet fan are arranged in a restroom, the infrared induction switch can control the on-off states of the air inlet fan and the air outlet fan, the control panel is arranged outside the restroom to control the air speed of the air inlet fan and the air outlet fan, and the air inlet fan and the air outlet fan are electrically connected with the infrared induction switch and the control panel. The air inlet fan is provided with a box capable of containing an air freshener. A box cover on the box can be opened and is provided with a plurality of air holes. When a person enters the induction range of the infrared induction switch in the restroom, a sensor on the infrared induction switch detects the change of the infrared spectrum of the human body, the infrared induction switch is automatically connected with a load, so that the air inlet fan and the air outlet fan are started, the air outlet fan exhausts peculiar smells in the restroom out of the restroom, the air inlet fan sucks air containing the air freshener into the restroom, air freshness is kept in the restroom, and people can go to the restroom with the good mood.

The invention discloses an air-cooled computer heat dissipation device in a multi-exhaust mode. The device comprises a cover body. One side of the cover body is opened, and a filter plate is fixedly mounted in the cover body; a plurality of exhaust fans are fixedly mounted on the outer side of the filter plate; a partition plate parallel to the filter plate is arranged on the inner side of the filter plate; the periphery of the partition plate is fixedly connected with the inner wall of the cover body; a plurality of transverse air inlets are formed in one side of the partition plate; one sides of a plurality of pot bodies are fixedly mounted on the other side of the partition plate; one side of each pot body is provided with an opening, the pot bodies are in one-to-one correspondence withthe air inlets, the air inlets are communicated with the interiors of the corresponding pot bodies respectively, spiral plates are fixedly installed in the pot bodies respectively, and the two sidesof each spiral plate are fixedly connected with the other side of the corresponding partition plate and one side of the inner wall of the corresponding pot body at the same time. The air-cooled computer heat dissipation device is suitable for being used in computer rooms of schools, air flowing in the host is accelerated through the exhaust fan , the temperature of the host can be effectively reduced, the room temperature of the computer room can be easily controlled, and the cover body is made of sound insulation materials so as to reduce noise influence caused by work of the exhaust fan.