| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 126112000 | Feeding air | 17 |
| 20100078007 | High Efficiency Furnace/Air Handler Blower Housing with a Side Wall Having an Exponentially Increasing Expansion Angle - An air distribution blower housing for an air handler such as a residential furnace is designed with a volute-shaped outer wall that has an exponentially increasing expansion angle in the direction of air flow through the blower housing for at least a portion of the volute-shaped outer wall length. This results in the blower housing having an enlarged air outlet opening that slows down and spreads out the air flow from the blower housing over a greater area of the furnace heat exchanger. The blower housing thereby enables less air pressure drop through the heat exchanger, which increases the efficiency of the blower motor operation. The design of the blower housing also efficiently turns the velocity head of the air flow through the housing to usable static air pressure at the housing air outlet. | 04-01-2010 |
| 20100126491 | BURNER FOR COMBUSTION OF FUEL IN PELLET OR GRANULAR FORM - A burner for fuel in pellet or granular form in which the fuel has a high ash content, for example grass or hay pellets in which the ash content is 5% or more. The burner has a combustion chamber with a grate at its lower end, into which fuel and air are fed, the combustion chamber having a hot gas outlet for exhausting combustion gases. The grate is provided with a rotary member having upstanding vanes which is adapted to continually move ash or clinker on the grate through outlet apertures spaced around the grate. The grate is a generally planar, horizontal surface which is imperforate apart from the outlet apertures; air inlet ports are arranged in a circumferential wall surrounding the grate. | 05-27-2010 |
| 20100175679 | Hot-Air Furnace Module and Hot-Air Furnace - The invention relates to a hot-air furnace module having a furnace space, which is at least partially delimited by walls and is assigned an air-delivery device for producing an airstream and a heat-transfer device for heating the airstream. According to the invention, an incoming-air channel is provided, which is formed between the air-feed device and the furnace space for guiding the airstream delivered by the air-feed device and which is provided with first and second throttle means, which are arranged at a distance from one another in the direction of flow and are intended to even out the airstream before it flows through the furnace space. Furthermore, according to the invention a hot-air furnace is formed from hot-air furnace modules which are rotated through 180 degrees with respect to one another and are in communication with one another. | 07-15-2010 |
| 20100212651 | Alternate intake apparatus - The present invention relates generally to 90% Annual Fuel Utilization Efficiency gas or oil burning devices that depend on external air for combustion. More particularly it discloses an alternate intake apparatus for air for combustion that opens automatically when the inlet air conduit from outside is blocked or severely restricted. | 08-26-2010 |
| 20110094492 | DEVICE FOR FEEDING WATER STEAM VIA A HEAT EXCHANGER IN A COMBUSTION CHAMBER AND A METHOD - The invention relates to a device for feeding heated water steam via a heat exchanger in a thermal engine and method for using said device. | 04-28-2011 |
| 20110174291 | CLAMSHELL HEAT EXCHANGER - A clamshell heat exchanger includes a first clamshell half and a second clamshell half. When joined, the first and second clamshell halves form a passageway having an inlet and an outlet. The passageway has a height and a depth. A ratio of the height to the depth is about 0.5 or less. The heat exchanger has an efficiency of at least about 70%. | 07-21-2011 |
| 20110283986 | Apparatus for Improved Efficiency of an Air Conversion Device - An apparatus includes a housing including a first side having a first opening and a second side having a second opening. At least one fan creates an airflow through the housing between the first opening and the second opening. A motor activates the at least one fan to create the airflow. A control mechanism controls the motor. A mounting for the housing enables the apparatus to direct the airflow about an air conversion device, thereby increasing an efficiency of the air conversion device. | 11-24-2011 |
| 20110297139 | WARM AIR FURNACE - A drain pipe | 12-08-2011 |
| 20110303211 | Efficient Forced Air Heater - Provided is a forced air heater. The forced air heater may comprise a housing defining a duct. The duct may be adapted for a flow of fluid therethrough. The heater may be adapted to provide a flow of fluid through the duct that is substantially laminar or transient. | 12-15-2011 |
| 20120012092 | AUTO CURE VARIABLE FAN DRIVE CONTROL SYSTEM AND ASSOCIATED METHODS - Methods and systems for controlling air characteristics for storage facilities. A controller and temperature sensors can detect an external temperature and compare it to a reference temperature. Depending on the relationship between the external temperature and the reference temperature (e.g. warmer or colder) the controller can initiate a burner, open an air intake, and operate fans to achieve desirable conditions within the facility efficiently. | 01-19-2012 |
| 20120080023 | Method And System For Controlling An Inducer In A Modulating Furnace - A furnace includes an induced draft blower; an inducer motor driving the induced draft blower; and a furnace control determining a modulation percentage, the furnace control controlling RPM of the inducer motor in response to the modulation percentage. | 04-05-2012 |
| 20120192849 | FURNACE WITH PRIMARY AND SECONDARY HEAT EXCHANGERS - A furnace that includes a heater configured to heat a fluid and discharge a heated fluid flow, a first heat exchanger at least partially positioned in a air duct and in fluid communication with the heater to receive the heated fluid flow, and a second heat exchanger at least partially positioned in the air duct and in fluid communication with the first heat exchanger so that the heated fluid flow flows through the second heat exchanger after flowing through the first heat exchanger. The first heat exchanger and the second heat exchanger are arranged in the air duct so that the flow of air travels through the first heat exchanger to transfer heat between the heated fluid flow and the flow of air, and then through the second heat exchanger after the first heat exchanger to transfer heat between the heated fluid flow and the flow of air. | 08-02-2012 |
| 20120199109 | Method And System For Variable Speed Blower Control - A method of controlling a blower motor in a furnace includes applying control signals to the blower motor; determining that a reference airflow through a portion of the furnace is present; determining a reference control signal at which the reference air flow is present; receiving a requested airflow; computing a requested control signal in response to the reference air flow, the reference control signal and the requested airflow; and using the requested control signal to control the blower motor. | 08-09-2012 |
| 20120304977 | Integrated Structure of Air Heater - An integrated structure of an air heater includes at least an air blowing unit, at least an air passage housing, a heating arrangement, and a overheat protection unit, which are fastened with each other to form the integrated structure, wherein the air blowing unit and the overheat protection unit are respectively fastened with the air passage housing, and the air passage housing is connected to the heating arrangement with screws. A simple and compact integrated structure for air heater is provided wherein its assembling method is easy and its manufacturing cost is low. | 12-06-2012 |
| 20130042851 | Furnace Control System and Method - A method for operating a furnace system includes initiating a start sequence comprising starting an inducer fan operative to induce an air flow through a burner assembly, a heat exchanger portion and a collector portion, determining whether an air pressure in the collector portion is above a first threshold value, starting a furnace ignition sequence including providing fuel to the burner assembly, igniting a fuel and air mixture and starting an ignition timer responsive to determining that the air pressure in the collector portion is above the first threshold value, determining whether the ignition timer has expired, determining whether the air pressure in the collector portion is above a second threshold value responsive to determining that the ignition timer has expired, and stopping the provision of fuel to the burner assembly responsive to determining that the air pressure in the collector portion is not above the second threshold value. | 02-21-2013 |
| 20130306048 | Indoor Coil Adapter - An adapter for controlling airflow between a first element and a second element in an air conditioning system is provided including a frame having a first frame piece and a second frame piece. A portion of the second frame piece overlaps the first frame piece. The second frame piece slides relative to the first frame piece making a dimension of the frame adjustable. An upper portion of the frame attaches about an end of the first element and a lower portion of the frame attaches about an end of the second element. | 11-21-2013 |
| 20140202442 | CONDENSING HEAT EXCHANGER FINS WITH ENHANCED AIRFLOW - A plate fin for a heat exchanger is provided including a base plate having a plurality of holes formed therein. The plate fin also includes a plurality of generally annular collars. Each collar is positioned substantially coaxially within one of the plurality of holes. The plurality of first collars is substantially less than the plurality of holes such that a portion of the plurality of holes does not have a collar arranged therein. | 07-24-2014 |
