| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 41 | Biomass Fuel Furnace System and Related Methods | US12541628 | 2009-08-14 | US20100058960A1 | 2010-03-11 | Jimmie C. Raley; Jeremy S. Lord; Timothy A. Mann; Gerald D. Stimson; Anthony B. Tranquill; Charles E. Wood; Donald W. Cox |
| A furnace system for heating a poultry brooder house includes a firebox for burning biomass fuel, and a grate within the firebox for burning the biomass fuel thereon. A distributor assembly may positioned within the firebox and is located directly above the grate. The distributor assembly includes a distributor plate having a plurality of apertures therethrough, and a distributor arm above the distributor plate that is movable relative to the distributor plate to cause biomass fuel supported on the plate to pass through the apertures and fall onto the grate. The furnace system may include a hopper assembly that defines a well for receiving a volume of biomass fuel for delivery to the grate or to the distributor plate. | ||||||
| 42 | Combustion Control Device | US11661993 | 2006-01-19 | US20080092826A1 | 2008-04-24 | Tomoki Kishimoto; Yuji Takagi; Masayoshi Yasukawa; Akira Takabayashi; Shinichi Okamoto; Hiroshi Yokoyama; Takashi Yashima; Masanori Kubotani |
| The present invention relates to a combustion control device incorporated in an apparatus such as water heater and provides the combustion control device having an improved configuration with a main controller and a sub controller, capable of employing a microcomputer with lower capability as the sub controller, and ensuring higher safety than ever before. Signals indicating a combustion state of a combustion apparatus are inputted into the main controller 35 and the sub controller 36 in parallel. Upon fulfillment of a predetermined condition of stopping, the main and sub controllers 35 and 36 each output a stop signal to cut off a current to be supplied to a device driving circuit 42. The conditions of stopping in outputting of the stop signal by the main and sub controllers are such that the sub controller 36 is less apt to execute the cutoff than the main controller 35. | ||||||
| 43 | Portable electronic equipment with integrated lighter | US10911274 | 2004-08-04 | US20050053883A1 | 2005-03-10 | Ulrich Faber |
| A lighter has been integrated into portable electronic equipments such as cellular phones, PDAs, or portable game players. The lighter can be completely stowed within the portable electronic equipment so that no parts protrude out of the portable electronic equipment's housing. Thereby not only the size can be reduced but also damage and entanglement with other things the portable electronic equipment is kept together as well as injuries can be avoided. The lighter is operated by a switch which is implemented as button either on the side of the portable electronic equipment or as a GUI menu or button on the display unit. When pressing the switch button the cover on the outlet of the lighter is being removed while at the same time a cylinder is being extended and moving out of the outlet, and a flame ignited in the burner unit appears from inside of the cylinder. The lighter includes a fuel tank which can be either fixed or removable as for instance fuel gas cartridges. A function for detecting the fuel gas amount and displaying it on the screen and a security function to lock the burner of the lighter are also provided. | ||||||
| 44 | Water heater | US586603 | 1984-03-06 | US4627416A | 1986-12-09 | Hiroshi Ito; Kanae Aida; Masanobu Shinozaki; Masahiko Koumura; Kazumi Tamada; Katsushi Mizutani |
| A water heater is disclosed having a heat exchanger, a main burner means for heating the heat exchanger, a standing burner, a main fuel passage means for supplying fuel to the main burner, a manual valve on the main fuel passage means which is operable by a manual operation member, an automatic valve disposed on the main fuel passage means at a point downstream from the manual valve, the automatic valve adapted to open in response to the pressure of a supply of water at a water pressure sensitive member, and a standing burner fuel passage means for supplying fuel to the standing burner, the standing burner fuel passage means drawing fuel from the main fuel passage means at a point in between the manual valve and the automatic valve. Also provided is a lock means engageable with manual operation member for preventing the manual operation member from opening the manual valve during the engagement, the lock means being operable by the water pressure sensitive member such that when no supply of water is sensed by the water pressure sensitive member, the lock means does not become engaged with the manual operation member. | ||||||
| 45 | Flame detecting apparatus | US435553 | 1982-10-21 | US4527125A | 1985-07-02 | Motoshi Miyanaka; Kenzi Toudo; Toshiaki Sagawa |
| A flame detecting apparatus used in a combustion control apparatus for a water heater provided with a gas burner comprises a pressure switch serving as means for detecting presence or absence of flame and a voltage comparison circuit serving as means for determining the presence or absence of the flame on the basis of the input signal supplied by the pressure switch. The voltage comparison circuit has an offset voltage and has a non-inverting input terminal connected only to the ground. A first circuit including a first resistor and a diode connected in series to each other is connected in a loop together with the pressure switch, an impedance network and an AC voltage source so that an AC current which flows when the pressure switch is closed is rectified by the first circuit and a negative voltage obtained through the use of a capacitor or the like is applied to the inverting input terminal of the voltage comparison circuit to thereby detect the flame, while preventing erroneous operation of the voltage comparison circuit due to a short-circuit possibly produced across the resistor. By connecting a second resistor in parallel with at least the diode of the first circuit, erroneous detection of the flame ascribable to contact failure of the pressure switch as well as leakage is prevented. The capacitor may be replaced by a resistor to reduce expenditure. | ||||||
| 46 | Adaptive low fire hold control system | US651490 | 1984-09-17 | US4513910A | 1985-04-30 | James I. Bartels |
| A boiler control utilizing a pressure sensor is provided that operates the system in the low fire mode if the load is light, and can be satisfied in that mode. If the low fire operation is inadequate to hold the load and the pressure drops, the boiler is then operated in a modulating mode which includes a high fire limit. This is accomplished by sensing the variation of a pressure responsive means and by providing a burner control system that monitors that pressure responsive means. | ||||||
| 47 | Fuel and ignition control | US306568 | 1981-09-28 | US4415328A | 1983-11-15 | Michael T. Grunden; William J. Roberts |
| A fuel and ignition control for a pulse combustion furnace includes both analog and digital timing means for fail safe operation, fuel valve control means which depend on proper cyclic operation for proper function, and flame detection means which are fail safe due to the necessity of its components providing a critical phase shift angle. The fuel control valve means includes energy storage means which is stepwise depleted to positively limit the time of valve energization in the absence of detection of flame, and is also disabled after a predetermined time by the digital timing means. | ||||||
| 48 | Furnace with draft-limiter and ventilation | US254087 | 1981-04-14 | US4404956A | 1983-09-20 | Luitpold Kutzner; Erwin Postenrieder |
| In an exhaust gas duct from a furnace a ventilation opening with a ventilation flap is openable in chronological conjunction with the cut-off of the furnace and it is closable in chronological conjunction with the switching on of the furnace. The ventilation opening is formed by a draft-limiter opening located downstream from the furnace and the ventilation flap is formed by a draft-limiter flap. During a pause in furnace operation, the draft-limiter flap is held in an open position independently of the pressure difference prevailing at the draft-limiter flap. One opening and one flap are eliminated. The draft-limiter flap provides the ventilation function as well as the draft-limiter function. If necessary, it can be installed in a small space together with an exhaust gas flap. | ||||||
| 49 | Automatic ignition and flame detection system for gas fired devices | US258388 | 1981-04-28 | US4402663A | 1983-09-06 | Pat Romanelli; Kenneth Peters |
| Improved automatic ignition system (10) for gas fired devices such as boilers, clothes dryers, ranges, and the like. The system (10) is of the type including a variable resistance ignition means (16) having a particular temperature characteristic disposed in proximity to the burner (14) for igniting gas flowing therethrough when the ignition means (16) is energized. The improved system includes detection means (12) for repeatedly measuring the resistance of the ignition means (16) and for comparing such measurements, and activating means (12) for activating the gas valve opening means (56) to open the valve (60) when the detection means (12) establishes that the ignition means (16) is in the portion of its temperature characteristic where the temperature thereof is sufficient to ignite gas. The preferred system (10) also includes means (12) for detecting a flameout, means (22) for detecting a low gas pressure condition, and visual means (28) for indicating system status as well as the existence and nature of system malfunctions. | ||||||
| 50 | Furnace control using induced draft blower, exhaust gas flow rate sensing and density compensation | US146885 | 1980-05-05 | US4340355A | 1982-07-20 | Lorne W. Nelson; Ralph H. Torborg |
| An induced draft combustion apparatus and its associated control system has a blower located in the exhaust stack or vent which is used to induce the movement of air and combustion products into, through and out of the combustion chamber. A flow-restricting orifice in the exhaust stack near the blower causes a region of higher pressure to exist upstream from the orifice with a region of lower pressure downstream from the orifice. An exhaust gas pressure signal representative of the exhaust gas volume flow rate is sensed on one side of the orifice and is fed back to a modulating gas valve which controls the outlet gas flow from the valve to be proportional to the magnitude of the exhaust gas volume flow rate. By controlling blower speeds and exhaust gas volume flow capacities as related to a selected orifice size, various firing rates for the furnace can be selected, from the design maximum down to various derated levels. Temperature-sensitive devices cooperating with the stack orifice or with the modulating gas valve are employed to compensate for changes in the density of the exhaust gas which accompany startup and changes in firing rate. | ||||||
| 51 | Furnace control using induced draft blower and exhaust gas differential pressure sensing | US170358 | 1980-07-21 | US4334855A | 1982-06-15 | Lorne W. Nelson |
| A heating system of the type having a combustion chamber with a fuel burner, an inlet for combustion air and an exhaust stack is improved by adding a variable-speed induced draft blower, a flow-restricting stack orifice and a fuel valve sensitive to the exhaust gas flow rate through the stack orifice. The fuel valve turns on at a first predetermined exhaust gas flow rate and turns off at a second predetermined exhaust gas flow rate, which is lower than the first predetermined rate. The fuel valve also supplies fuel at a rate proportional to the exhaust gas flow rate. Sensing of the differential pressure across the stack orifice is used to determine the exhaust gas flow rate. | ||||||
| 52 | Trim execution device | US105226 | 1979-12-19 | US4286474A | 1981-09-01 | James F. McMahon, Jr. |
| A mechanical proportioning trim execution device has a fulcrumed lever which swings between fully retracted and fully advanced positions. The fulcrum is movable back and forth from a neutral point along a fulcrum path. The lever has a fulcrum-engaging slideway extending in skewed relation to the length of the lever such that when the lever is in fully retracted position the fulcrum path and slideway are parallel but become increasingly skewed as the lever moves toward the fully advanced position. | ||||||
| 53 | Recirculating furnace-dryer combination | US640963 | 1975-12-15 | US4017254A | 1977-04-12 | Allen Jacob Jones |
| A recirculating furnace-dryer combination including a combustion chamber, a housing surrounding the combustion chamber for maintaining a greater than atmospheric pressure within the combustion chamber, a dryer in which a greater than atmospheric pressure may be maintained, and a feed conduit through which heated gases may be supplied from the combustion chamber to the dryer. Return conduits receive exhaust gases from the veneer dryer and recirculate them through a fan for repressurization into the housing, from which they are recirculated into the combustion chamber. A fuel feed, including an air lock, is operable to feed fuel into the combustion chamber, with an air lock maintaining a pressurized condition in the combustion chamber. Temperature sensing devices in the dryer are connected to controls to operate dampers in the feed conduits to maintain a preselected temperature range within the veneer dryer. A pressure sensing device in the combustion chamber senses changes in pressure in the combustion chamber to actuate automatic controls for controlling the rate of feed of fuel to the combustion chamber and the rate of entry of recirculated dryer gases and atmospheric air into the combustion chamber as necessary to maintain a balanced pressurized operating condition. | ||||||
| 54 | Control arrangement fail-safe timing circuit | US585237 | 1975-06-09 | US4005585A | 1977-02-01 | Russell B. Matthews |
| A fail-safe timing circuit energizable in response to a starting signal for activating a system, such as an air conditioning system, includes a first switching circuit responsive to the request signal to activate the system to commence its operation tentatively, a time-out circuit responsive to the starting signal for generating a time-out signal after a predetermined time delay interval, a circuit responsive to a system variable such as the compressor oil pressure achieving a given desired value, for preventing the time-out circuit from generating its time-out signal, and a second switching circuit for causing the first switching circuit to de-activate the system in response to the time-out signal. As a result, the system is prevented from operating in an undesirable or unwanted manner should the system variable not reach the predetermined condition within the timing interval. | ||||||
| 55 | Furnace pressure control | US601892 | 1975-08-04 | US3985294A | 1976-10-12 | Paul Vincent Guido; Robert Lenox Criswell |
| There has been provided a control for regulating the pressure excursions in a furnace having forced draft and induced draft fans. A pressure detector responsive to pressure in the furnace delivers an output indicative thereof. Circuit means, responsive to the pressure detector means and a set point input, delivers a correction signal output. Fan control means coupled to the induced draft fan is responsive to a demand input signal corresponding to a desired flow rate through the furnace and is likewise responsive to the correction signal for delivering a fan control signal for regulating said induced draft fan in accordance with variations in the flow rate and pressure excursions in the furnace. An override circuit is responsive to the pressure detector and an override set point input to produce an override output for controlling the induced draft fan at a rate substantially higher than that of the correction signal. There is also provided a transfer and memory circuit responsive to combustion air flow to the furnace and a furnace trip condition such that the circuit produces a signal to modify said fan control signal in accordance with the actual air flow to the furnace and in anticipation of an inevitable furnace pressure excursion caused by said furnace trip. | ||||||
| 56 | Electronic programmer unit for burner control | US3715180D | 1971-02-08 | US3715180A | 1973-02-06 | CORDELL E |
| An electronic programme timer means of solid state construction, for a fuel burner, said programme timer means comprising a control switch for initiating operation, a plurality of sequencing relays, flame sensing means connected to voltage comparators, voltage ramp generator, voltage follower and level detectors with output connected to said comparators for controlling said sequencing relays, feedback means to said comparators to ensure correct switching, temperature sensing means for switching said timer means and pressure sensing means for checking operation of blower purging means.
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| 57 | Burner control system | US3684423D | 1970-11-23 | US3684423A | 1972-08-15 | BRYANT JACK A |
| A burner control system includes a plurality of field indicators indicative of the status of components of the burner system, control logic responsive to the field indicators for control burner control signals, logic bypass c0ntrol and circuitry responsive to the logic bypass control for establishing the status of the control logic as a function of the field indicators so that the control logic is maintained in synchronism with the field indicators.
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| 58 | Forced draft furnace safety system | US3650262D | 1970-06-25 | US3650262A | 1972-03-21 | ROOT WARREN W; FRANK WILLIAM W |
| A safety system for sensing the air flow through a forced draft furnace and using that sensed flow to operate a switch which prevents gas fuel from being supplied to the furnace in the absence of such flow is disclosed in which a vacuum sensing tube is positioned at the edge of the inlet to a centrifugal blower within a specific range of angular positions to obtain a sufficiently large magnitude of pressure differential to operate the switch.
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| 59 | Temperature responsive control device | US27957263 | 1963-05-10 | US3227370A | 1966-01-04 | HOUSER ROY W |
| 60 | Draft control | US66251057 | 1957-05-29 | US2965731A | 1960-12-20 | MCMAHON JR JAMES F |
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