11328 results about "Fresh air" patented technology

The present invention is related to the field of heating, ventilation and air conditioning (HVAC). More particularly, the present invention is related to methods and systems for controlled heating and cooling in order to reduce costs and the carbon footprint of said heating and cooling by optimizing the use of fresh air ventilation. The present invention is directed to mathematical algorithms incorporated into a controller and a method of determining control signals that are dependent on said mathematical algorithms and user programming that integrates information from multiple sensors, thermostats as well as weather information. Used in any home or building, the controller controls heating, cooling and ventilation systems in order to reduce costs and the carbon footprint of said heating and cooling by optimizing the use of fresh air ventilation. The controller works with typical HVAC systems generally in buildings and homes. The Smart-Stat algorithms are programmed into the controller and enable the controller to identify user-determined set-points alongside data from one or multiple internal temperature sensors. The user-determined set-points are also linked to time of day and day of week in a manner typical for typical thermostat devices available today. In such typical thermostat devices the controller will call for cooling or heating depending on the set points and conditions determined by the sensors in the building. The present invention is capable of interrupting the call for cooling or heating depending on whether the mathematical algorithms identify suitable outside weather conditions that permit the use of outside air cooling or outside air heating. Thus the call for heating or cooling can be redirected to call for ventilation instead of heating or cooling.

A stir-frying apparatus (100) with an overhead-heating device (128). Apparatus (100) comprises a container (102) for holding foods, a lid (120) covering on top of container (102), a bottom heating device (118) installed underneath container (102) and an overhead heating device installed on lid (120), a stirring blade (136) rotatably and removably installed inside container (102) for stirring foods, a power-drive assembly (140) operationally coupled with blade (136) for driving blade (136) through repeating stirring cycles, a coupling device (134) for coupling assembly (140) and blade (136), a venting device (200) for filtering and deodorizing cooking fumes, a blowing device (202) for forcing fresh air into apparatus (100) for the removal of moisture from therein-side, and an ingredient adding conduit (250) for use of adding ingredients during a frying process.

In a power generation plant having at least one gas turbine cycle with heat-recovery boiler (4) and at least one steam turbine cycle operated via the heat-recovery boiler (4), the gas turbine cycle being designed to be semi-closed and essentially free of emissions and essentially comprising a compressor (1), a combustion chamber (2) arranged downstream of the compressor (1), a gas turbine (3) arranged downstream of the combustion chamber (2), a heat-recovery boiler (4) arranged downstream of the gas turbine (3), and at least one generator (8) coupled to the gas turbine (3), modes of operation with the gas turbine cycle stopped and start-up using fresh air are made possible by first means (12) being arranged which alternatively or additionally allow hot gas to be fed into the hot-gas path (23) between gas turbine (3) and heat-recovery boiler (4), and by second means (15) being arranged which alternatively or additionally allow exhaust gas to be expelled from the exhaust-gas path (40) downstream of the heat-recovery boiler (4).

The invention provides a constant-temperature, constant-humidity and constant-cleanliness silent indoor air system, belongs to the field of indoor intelligent adjustment, and relates to multiple techniques including indoor air pressure control, indoor air purification, an indoor central dedusting system, supercharging and compensation functions for interlayers of double windows and double doors, an outdoor haze isolating system, an indoor air internal-circulation cleaning method, air heat exchange, air heating, refrigeration, dehumidification and the like. According to the constant-temperature, constant-humidity and constant-cleanliness silent indoor air system, the pressure of fresh air is made positive through the interlayers of the double doors and the double windows, the air pressure in the interlayers of the double doors and the double windows is made higher than outdoor air pressure, and outdoor air is prevented from invading indoor air; a small primary-efficiency, medium-efficiency and high-efficiency filtering system is used for filtration, various types of automatic adjustment and control including heating, refrigerating, dehumidifying and the like are conducted on air, pollutant dust generated indoors is removed through the central dedusting system, and the constant-temperature, constant-humidity and constant-cleanliness silent indoor air system is an omnidirectional intelligent air control system.

The invention discloses an expansive type silencer and a fresh air system and relates to the technical field of indoor ventilating and exhausting equipment. The expansive type silencer and the fresh air system are invented for solving the problem that an existing expansive type silencer cannot be used for achieving broadband sound eliminating. The expansive type silencer comprises an expansion pipe. Connecting nozzles are arranged at the two ends of the expansion pipe. The area of the sections of the connecting nozzles is smaller than the area of the section of the expansion pipe. The expansion pipe comprises a fixed pipe section and a telescopic pipe section. The end, close to the fixed pipe section, of the telescopic pipe section is matched and connected with the fixed pipe section in a sleeving manner and can slide in the length direction of the fixed pipe section to adjust the length of the expansion pipe. The expansive type silencer is used for the fresh air system.

A device and method that may be used at nearly any place to set and adjust a control system such as a thermostat, controller or computer having numerous parameters and options that may be selected for desired operation of an air management system. One may remotely, via a personal digital assistant, configure, commission, select, set or adjust the parameters and options of a control system, which may include, but not be limited to, temperatures, humidity, sensors, volume of air movement, fan or air mover behavior, the percentage of added fresh air, modulated and non-modulated control of valves and dampers, stages of cooling and heating at various zones, control of heat pumps, heaters and air conditioners, modes of occupied, unoccupied or standby of respective spaces in a building, for day and night, at selected times, on certain days, for specific buildings at particular locations.

A ventilation system for a building in some cases includes a main HVAC blower for moving temperature-conditioned air through the building plus a smaller ventilation blower for providing fresh air. A controller regulates the ventilation blower's speed to provide a target ventilation flow rate regardless of changes in the pressure differential between the indoor and outdoor air. To ensure that the target rate is appropriate for a particular building, the target flow rate is determined based on a ventilation setting that reflects a specified number of bedrooms and a specified amount of floor space of the building.

A portable heater adapted for use in a recreational enclosure or temporary work enclosure includes a housing having an air inlet on the lower front face. A gas supply is partially enclosed by the housing which provides propane to the mouth of a burner venturi located within the housing. Air is drawn through the air inlet and also enters the mouth of the burner venturi. The air and gas are mixed thoroughly as they travel upwardly through the burner venturi. A chimney effect increases fresh air flow velocity into the burner venturi and allows the heater to operate at a reduced fuel gas pressure. Upon exiting the burner venturi, the air / gas mixture is to a plenum and radiant surface where combustion takes place. Any conventional means may be provided to ignite the air / gas mixture in order to cause combustion. The combustion products deflect off a deflector, which is cooled on a rear face by air flow through the housing, which decreases the temperature of the combustion products before exiting an outlet. An oxygen depletion system (ODS) shuts off the portable heater when oxygen levels begin to drop and consequently carbon monoxide levels begin to rise.

An automatic frying apparatus (100) for both deep and shallow frying. Frying apparatus (100) comprises a container (102) having an inner cylindrical wall (102b) installed on the central bottom thereof, so as to emanate from the bottom to substantially the upper portion of container (102) for holding foods and oil, a lid (104) covering on top of container (102), a plurality of stirring blades (108) rotatably and removably installed inside container (102) for stirring foods, a power-drive assembly (110) operationally coupled with blades (108) for driving blades (108) through repeating stirring cycles, a coupling device (106) for coupling in between assembly (110) and blades (108), a venting device (200) for filtering and deodorizing cooking fumes, and a blowing device (202) for forcing fresh air into frying apparatus (100) for moisture removal from thereinside. Blades (108) sweep across food pieces intermittently, such that blades (108) dwell for a predetermined dwell period starting near the end of each stirring cycle. This intermittent operation favors better agitation of food pieces and affords relief from constant stirring of food pieces at a higher speed. Food pieces are partially immersed in the boiling oil, and therefore, less oil is required for frying foods, thereby, causing less energy consumption, less fat absorption by the food, less time for cooking, and less used oil for disposal. The frying process is fully automatic and requires minimal human involvement and chore.

An automatic frying apparatus (100) for both deep and shallow frying. Frying apparatus (100) comprises a container (102) having an inner cylindrical wall (102b) installed on the central bottom thereof, so as to emanate from the bottom to substantially the upper portion of container (102) for holding foods and oil, a lid (104) covering on top of container (102), a plurality of stirring blades (108) rotatably and removably installed inside container (102) for stirring foods, a power-drive assembly (110) operationally coupled with blades (108) for driving blades (108) through repeating stirring cycles, a coupling device (106) for coupling in between assembly (110) and blades (108), a venting device (200) for filtering and deodorizing cooking fumes, and a blowing device (202) for forcing fresh air into frying apparatus (100) for moisture removal from thereinside. Blades (108) sweep across food pieces intermittently, such that blades (108) dwell for a predetermined dwell period starting near the end of each stirring cycle. This intermittent operation favors better agitation of food pieces and affords relief from constant stirring of food pieces at a higher speed. Food pieces are partially immersed in the boiling oil, and therefore, less oil is required for frying foods, thereby, causing less energy consumption, less fat absorption by the food, less time for cooking, and less used oil for disposal. The frying process is fully automatic and requires minimal human involvement and chore.

A combination cooking appliance controls a radiant heating element provided in an oven cavity and a convection heating element provided in an air plenum with a regulating system which receives signals from multiple temperature sensors. More specifically, the appliance includes a first temperature sensor provided in an air return plenum portion for controlling the radiant heating element and a second temperature sensor arranged in a discharge air plenum portion, preferably downstream of a catalyst, for controlling the convection heating element. The heating elements are independently controlled based on the sensed temperatures to establish a desired oven cavity temperature, while accommodating for temperature fluctuations due to the incoming fresh air stream.

Each cylinder is provided with an ignition plug, two intake valves, an intra-cylinder fuel injector, and a port fuel injector. When homogeneous combustion is demanded, the intra-cylinder fuel injector and port fuel injector inject fuel on the same engine cycle. The port fuel injector is installed so that the amount of fuel directed toward outer regions of the intake valves is larger than that of fuel directed toward inner regions of the intake valves, thereby causing only fresh air to flow to regions near the inner regions of the intake valves.

A self-contained air conditioner unit incorporates an energy recovery ventilator portion that brings about several changes of room air per hour with outdoor fresh air. There is an outdoor air intake plenum which furnishes the fresh air and the condenser air for the condenser coil, and a return air plenum. Air from the room return air plenum is HEPA filtered and conducted to the evaporator coil and evaporator fan, and is supplied back into the conditioned space. The energy recovery ventilator has a counterflow heat exchanger core situated between the return air plenum and the fresh air intake plenum, as well as two ventilation fans, one (or both) of which may be of variable or multiple speed. By controlling the fan speeds, it is possible to produce a neutral pressure, a positive or overpressure, or a negative or underpressure in the conditioned space. The unit can be wheeled into place and installed easily by personnel without special training. The unit can be scaled up in size and capacity for a larger room or whole house applications, or scaled down for smaller rooms or window mounting.

A system and method is provided for cooling a gaming machine. The cooling system includes an air flow assembly which draws fresh air from outside the gaming machine. The air flow assembly provides the fresh air to a set of ducts. The set of ducts channel the fresh air to one or more internal components of the gaming machine. The cooling system may also include an inlet duct to channel air from outside the machine to the air flow assembly and filters for cleaning the air entering the gaming machine.

An air conditioning system for conditioning the space within an enclosure having at least one inlet and one outlet, the system comprising first and second liquid / air heat exchangers; the first heat exchanger having an opening for receiving fresh air from the environment and for propelling the fresh air through the first heat exchanger to exchange heat with the liquid before it is entered into the enclosure, and the second heat exchanger having an opening for receiving air from the enclosure and for propelling it through the second heat exchanger to exchange heat with the liquid before it is expelled into the atmosphere. There are also provided methods for air-conditioning an enclosed space and for evaporation of industrial wastes.

HVAC systems are employed to control the indoor environmental characteristics of a building structure to make it comfortable for its inhabitants. An HVAC system includes one single integrated central control to regulate an indoor temperature level, an indoor relative humidity level and an indoor fresh air level of a building structure during both a heating season and a cooling season. Further, the single integrated central control is operable to selectively activate / deactivate an indoor blower to control a sensible ratio within a building structure. In addition, a protection feature for avoiding condensation on the interior surfaces of the building structure is included as an user selectable option.

This invention relates to a wet type air cleaner utilizing a centrifugal impeller with an electric motor instead of using filters, thus the separation of particular dust, mist can be absolutely eliminated from air with the difference of specific gravity between gas and pollution liquid under centrifugal force. An wet type air cleaner utilizing a centrifugal impeller comprising: protection grill (400) and water tank (401) located on an inlet pipe (405), an electric motor (433) with a centrifugal impeller (408) and a bearing (434) located inside of centrifugal cleaner (407), a drain trap (441) and humidity controller (442) installed on an exit pipe (432) etc. Therefore centrifugal wet type air cleaner make fresh air efficiently to be carried out by centrifugal force without using filters in the field of home, office, passenger car, dust place like cement factory, machine center, exhaust gas cleaner for an industrial burner and an internal combustion engine.

The invention relates to a total heat recovery humidifying fresh-air heat pump comprising an air inlet channel, an air exhaust channel and a refrigeration system, wherein the refrigeration system comprises a compressor, a first heat exchanger, a throttling device and a second heat exchanger, wherein the first heat exchanger exchanges heat with cold and heat sources, the second heat exchanger is used for cooling, dehumidifying or heating fresh air, the second heat exchanger is positioned into the air inlet channel, an air blower is arranged in the air inlet channel, an exhauster is arranged in the air exhaust channel, a heat recovery heat exchanger which is used for exchanging the heat of the fresh air and indoor return air is arranged between an inlet of the air inlet channel and an outlet of the air exhaust channel, a reheater which is used for reheating the cooled and dehumidified fresh air is optionally connected between the first heat exchanger and the throttling device, and the reheater is positioned behind the second heat exchanger in the air inlet channel along the flow direction of the fresh air. The invention provides a humidifying fresh-air heat pump which is additionally provided with the heat exchangers to dehumidify, reheats air by the reheater, can select an air internal or external circulation mode according to the concentration of CO2, saves more energy and is simple to control.

An internal combustion engine system, dual loop EGR system and method is provided, with a high pressure EGR loop, controlled by a control valve, in fluidic connection with the exhaust outlet of the exhaust manifold and the air inlet of the intake manifold, and a low pressure EGR loop, wherein exhaust, in proportions controlled by a control valve, enters a compressor from a point downstream of an exhaust emissions controller, together with fresh air, the low pressure EGR loop being in fluidic connection with an output of the compressor and the air inlet of the intake manifold.

The outside treating process of polluted soil includes the following steps: excavating the polluted soil, filling the soil inside the treating apparatus, pumping with vacuum pump to form certain vacuum degree in the pumping well while intruding fresh air into soil to promote the volatilization of pollutant and taking out the volatile. The soil may be also heated to speed the volatilization. The treating apparatus consists of exhaust well with exhaust pipeline, temperature controlling sensor and heater embedded into soil pipe. The treated soil may be re-filled or used in other site.

A gas fryer includes a tank for holding cooking oil, a heat pipe located in the middle depth of the tank so that the heat pipe is soaked in the cooking oil, a combustion chamber located at the combustion gas inlet side of the heat pipe, and a flue located at a combustion gas outlet side of the heat pipe. The heat pipe has a sleeve fitted in the inner wall of the heat pipe, and a spirally shaped mixer installed in the heat pipe. The flue also has an introduction system for fresh air, with a blowing nozzle of the fresh air positioned proximate to a narrowed region located about in the middle of the flue along a longitudinal axis, an inlet of fresh air located at a part of the flue, and a passage of fresh air provided along the inner and / or outer wall of the flue.

A gas fryer comprising: a tank for holding cooking oil, a heat pipe located proximate in the middle depth of said tank so that said heat pipe is soaked in said cooking oil, a combustion chamber located at the combustion gas inlet side of said heat pipe, and a flue located at a combustion gas outlet side of said heat pipe, wherein said heat pipe comprises a sleeve fitted in the inner wall of said heat pipe, and a spirally shaped mixer installed in said heat pipe, and wherein said flue comprises an introduction system of fresh air, said system comprising of a blowing nozzle of the fresh air positioned proximate to a narrowed region located proximate in the middle of said flue along a longitudinal axis, an inlet of fresh air located at a part of said flue, and a passage of fresh air provided along the inner and / or outer wall of said flue was provided.

A CPAP mask, within which is disposed a membrane that effectively separates air and carbon dioxide within a face mask into two air chambers, and a one-way air escape valve plate is fitted to an air vent at one end of the face mask. Accordingly, when air is input into the CPAP mask through a CPAP (Continuous Positive Airway Pressure) ventilator, one portion of the air expels the CO2 exhaled by the patient through the one-way air escape valve plate, while the other portion of the air is inhaled by the patient, thereby enabling the patient to inhale fresh air with each respiration.

An improved method and apparatus for indirect evaporative cooling of a fluid stream to substantially its dew point temperature. Plate heat exchanger has perforations 11 and channels 3, 4 and 5 for gas or a low temperature for liquids on a dry side and wet side. Fluid streams 1 flow across the dry side 9, transferring heat to the plate. Gas stream 2 flows across the dry side and through perforations to channels 5 on wet side 10, which it then cools by evaporative cooling as well as conductive and radiative transfer of heat from plate. A wicking material provides wetting of wet side. In other embodiments, a desiccant wheel may be used to dehumidify the gas, air streams may be recirculated, feeder wicks 13 and a pump may be used to bring water from a water reservoir, and fans may be used to either force or induce a draft. The wicking material may be cellulose, organic fibers, organic based fibers, polyester, polypropylene, carbon-based fibers, silicon based fibers, fiberglass, or combinations of them. The device may be operated in winter months to scavenge heat from exhaust gases of a space and thus pre-heat fresh air, while simultaneously humidifying the fresh air.

The invention relates to a method and a system for adjusting air quality of high-rise buildings by virtue of natural conditions. The method comprises the steps of acquiring index data of air quality of a local area, detecting indoor and outdoor air quality, humidity and temperature as well as outdoor wind power, transmitting detection data to a main control system, working out an air quality control strategy by the main control system according to related data of various detections as well as the index data of the air quality of the local area, sending the air quality control strategy to a local controller by the main control system, and controlling a total heat fresh air ventilator to start and stop ventilating by the local controller. The system comprises various air quality detection devices, a ventilation and air change device, the local controller, a local area network and the main control system, wherein the main control system is connected with an air quality index publishing system. According to the system and the method, both the indoor air condition and the outdoor air condition of the high-rise buildings are taken into account, existing facilities of the high-rise buildings are fully used, relatively ideal air at the best time is gathered, and the air quality of the high-rise buildings is controlled and regulated at low cost when the air contamination is uncertain.

An aircraft air-conditioning system provides ventilation, air-conditioning and fire protection for a below-deck stairwell and cargo hold that may be equipped with passenger sleeping compartment containers. An air mixing unit mixes fresh air and recycled air to supply mixed air through a first supply air main line (31) and a supply air unit (21) into the freight hold (4), and through a second supply air main line (32) into the stairwell (5). A trimming air unit (7A) provides hot bleed air from the aircraft engines into the mixed air supplied through the first and second supply air main lines (31, 32). An exhaust air line (11) extracts exhaust air from the freight hold (4), while an exhaust air supplemental line (15) extracts exhaust air from the stairwell (5), both of which are connected to an exhaust air main line with an exhaust air ventilator (16) that blows the exhaust air overboard. A bypass line (8) provides bypass air if needed for the demands of the ventilator (16). Regulating valves and non-return flap valves in the supply air line and in the exhaust air line regulate the flow of air and prevent back-flow. Temperature sensors are connected to a controller that regulates the temperature of the mixed supply air to achieve a comfortable temperature in the freight hold and in the stairwell. In the event of fire, the air valves are closed, to seal-off the freight hold (4) and prevent the spread of smoke into the stairwell or other ventilated areas.

The invention discloses a cloud control platform for an intelligent indoor air purification fresh air system based on the Internet of things. The cloud control platform comprises an air filtering device which is mounted on the wall and is communicated with outdoor air, a purification system for purifying indoor air, and a fresh air system which is mounted in an indoor ceiling and is used for exchanging the indoor air with the outdoor air, wherein the fresh air system communicates with the purification system; the purification system adjusts the fresh air system according to the cleanness data of the detected indoor air and uploads processed data to a cloud server through a wireless transmission module. By use of an intelligent control technology, the purification system with detection and automatic control functions is organically combined with the fresh air system with a remote control function, so that remote control is realized, and the air purification quality can be obviously improved within short time; the respective advantages are fully used and supplement each other to realize organic combination.

A box-shaped enclosure of a storage box includes a deadening wall or walls defining a storage space between first and second planes. The storage space is open at the first and second planes. A deadening wall member extends along the first plane. An auxiliary box-shaped enclosure is connected to the box-shaped enclosure so as to close the first plane of the box-shaped enclosure. The auxiliary box-shaped enclosure defines an auxiliary space isolated from the storage space with a deadening wall member. The storage space is connected to the fresh air through the ventilation opening and the auxiliary space. The deadening wall or walls of the box-shaped enclosure and the deadening wall member serve to prevent the leakage of the operating sound.

The invention discloses a head-mounted portable air purifier. An air purification assembly is additionally arranged on a lug; the air purification assembly comprises an air purification device, a fan and a connecting air pipe; the fan is mounted on the lug; the top end of the connecting air pipe is connected with the fan, and the tail end of the connecting air pipe is connected with the air purification device; a microphone is arranged at the part, of the connecting air pipe or the lug, close to the air purification device, so that an earphone is combined with the air purifier and a user can breathe fresh air in time when using the earphone. The human health is effectively maintained, the head-mounted portable air purifier is diversified in function and attractive in appearance, and the use comfort of the air purifier is improved. Moreover, a door body capable of being used for opening a pipe cavity is arranged on the connecting air pipe, so that the connecting air pipe is convenient to clean and maintain; wires are tightly attached to the inner wall of the connecting air pipe, so that the wires are effectively protected by the connecting air pipe, and the service quality of the earphone is improved.

A system and method of selecting air intake between 100% fresh air mode and 100% recirculated air mode for optimum heating / cooling performance, fuel economy and / or high voltage (HV) battery power consumption is disclosed. The system and method includes a partial recirculation control strategy in which the air inlet door is moved progressively to any position by taking into account cooling / heating loads and cabin fogging probability. As cooling / heating loads increase the air inlet door moves toward 100% recirculation mode. As fogging probability increases the air inlet door moves toward 100% fresh air mode. By selectively choosing a position between 100% recirculation and 100% fresh air, fuel economy and / or HV battery power consumption is optimized without compromising passenger comfort or causing fogging on interior glass surfaces. In cooling applications the compressor load is minimized and air conditioning performance is improved due to the reduced evaporator cooling load. The direct result of this improvement is increased fuel economy in the case of the internal combustion vehicle, reduced engine on time in the case of the hybrid electric vehicle (due to reduced HV battery power consumption), and reduced HV battery power consumption in the case of the hybrid electric vehicle (HEV) and the electric vehicle (EV). In heating applications, as the heating load is reduced the fuel economy of the internal combustion (IC) engine will be improved, the engine on time is reduced in the case of the HEV, and HV battery power consumption is reduced in the case of the EV.