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US20100310997A1 - Domestic gas appliance with flame control - Google Patents

Domestic gas appliance with flame control Download PDF

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Publication number
US20100310997A1
US20100310997A1 US12/792,632 US79263210A US2010310997A1 US 20100310997 A1 US20100310997 A1 US 20100310997A1 US 79263210 A US79263210 A US 79263210A US 2010310997 A1 US2010310997 A1 US 2010310997A1
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US
United States
Prior art keywords
signal
control
reference signal
gas
actuator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US12/792,632
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English (en)
Inventor
José Ignacio Múgica Odriozola
Iñigo Albizuri Landa
José Joaquín Antxia Uribetxebarria
Aitor Zabalo Bayón
Antonio José Barbero Merino
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Coprecitec SL
Original Assignee
Coprecitec SL
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Coprecitec SL filed Critical Coprecitec SL
Assigned to COPRECITEC, S.L. reassignment COPRECITEC, S.L. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ALBIZURI LANDA, INIGO, ANTXIA URIBETXEBARRIA, JOSE JOAQUIN, BARBERO MERINO, ANTONIO JOSE, MUGICA ODRIOZOLA, JOSE IGNACIO, ZABALO BAYON, AITOR
Publication of US20100310997A1 publication Critical patent/US20100310997A1/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N1/00—Regulating fuel supply
    • F23N1/002—Regulating fuel supply using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/16—Systems for controlling combustion using noise-sensitive detectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/12—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/002—Stoves
    • F24C3/006—Stoves simulating flames

Definitions

  • This invention relates to domestic gas appliances and, more specifically, to domestic gas appliances in which a flame is generated and in which the flame can be modified by acting on at least one valve.
  • One type is electrical appliances that simulate the flame or fire to obtain these combustion effects, some of them even simulating the sound produced by the flames.
  • An example of this type of appliance is disclosed in the document US20070125367A1 where a flame is simulated by electronic means.
  • At least one light source such as LEDs, is used to achieve this in conjunction with a microprocessor that is used to vary the intensity of the light and its colour of the light (of the LEDs) in order to simulate the natural effect of a live flame. Simulation of logs and wood are also disclosed.
  • Appliances that heat and/or light by means of a non-solid fuel such as gas for example comprise at least one burner to which the gas is supplied, a flame being generated in the burner when the gas is ignited.
  • the intensity of the flame depends on the gas (or on an air-gas mixture) that reaches the burner, and there are known appliances that, in order to simulate the effect of combustion cause a modification of the flame by the blowing an air current directly into the burner (or onto the flame generated in the burner) for example, thereby altering the flame, which modifies its shape in accordance with the air current directed into the burner.
  • U.S. Pat. No. 6,162,045 discloses an example of this type of appliances, in which the vibrations of a speaker disposed in the burner disturb the air-gas mixture that reaches the burner, the flame being altered in accordance with the vibrations.
  • the gas that reaches the burner is regulated by acting on a valve that regulates the passage of the gas to the burner.
  • the valve is acted on in accordance with preset patterns, the user being able to select among a preset number of patterns at any given moment. These patterns can imitate known music or even certain ambiences such as a romantic ambience.
  • U.S. Publication No. 2005/0208443A1 discloses a gas heating appliance that comprises control means for regulating the characteristics of a gas generated flame, such as its frequency and size, thereby providing a combustion effect.
  • the control means acts on a valve to regulate the gas that reaches the burner.
  • the control means comprises a plurality of preset control modes or patterns that can be selected to control the valve according to the pattern selected by the user.
  • a user of such appliance is unable to recreate ambiences that have not been preset in the control means.
  • a domestic gas appliance comprising at least one burner where a flame is generated, at least one valve associated to the burner and which regulates the passage of gas to the burner, and control means that is associated to the valve and which is adapted to generate a control signal for controlling the position of the valve based on an analog audio/sound input for the purpose of regulating the flow of gas to the burner.
  • control means receives a reference signal representative of the amplitude of the analog sound signal and generates the control signal in accordance with the reference signal.
  • the different values (amplitudes) of the analog sound signal are not stored or selected beforehand.
  • the control means generates a control signal in accordance with a reference signal representative of sounds generated in real-time.
  • the user can select in real-time a sequence of sounds in order to produce a flame to recreate a desired ambience or feeling at any given moment without being forced to select from among a limited number of preset ambience.
  • the domestic gas appliance fulfils its main function, which can be heating (if it is a gas stove/heater) or lighting (if it is a gas lamp) for example.
  • a domestic gas appliance comprising a burner; a gas control valve, when coupled to a gas source, situated to deliver a flow of the gas to the burner, the gas control valve having an actuator that induces an opening and/or closing of the flow control valve; and a control device electrically coupled to the actuator to control the opening and closing of the gas control valve, the control device coupled to an audio input and configured to receive an analog sound signal and to generate a control signal based on the analog sound signal deliverable to the actuator to cause the actuator to induce a modulation of a flame in the burner.
  • a kit for incorporation into a domestic gas appliance having a burner comprising a gas control valve connectable between a gas source and the burner, the gas control valve having an actuator that induces an opening and/or closing of the gas control valve; and a control device electrically coupled to the actuator to control the opening and closing of the gas control valve, the control device coupled to an audio input and configured to receive an analog sound signal and to generate a control signal based on the analog sound signal deliverable to the actuator to cause the actuator to open and/or close for the purpose of inducing a modulation of a flame in the burner.
  • a method of modulating a flame in a burner of a domestic gas appliance comprising producing an analog sound signal, creating a reference signal based on the analog sound signal, acting on the reference signal to create a control signal, the reference signal being acted upon to establish either a linear, a logarithmic or a potential relationship between the reference signal and the control signal; and delivering the control signal to an actuator of a gas control valve that is situated to control the flow of gas to the burner, the control signal acting upon the actuator to cause the actuator to open and/or close to modulate the flame in the burner.
  • FIG. 1 schematically shows a gas appliance in one implementation.
  • FIG. 2 a shows a linear relationship between a reference signal and a control signal of an appliance, such as that illustrated in FIG. 1 .
  • FIG. 2 b shows a logarithmic relationship between a reference signal and a control signal of an appliance, such as that illustrated in FIG. 1 .
  • FIG. 2 c shows a potential relationship between a reference signal and a control signal of an appliance, such as that illustrated in FIG. 1 .
  • FIG. 3 a represents the variations in amplitude of a melody for which the most suitable relationship is a linear relationship and also a reference signal representative of the variations.
  • FIG. 3 b represents the variations in amplitude of a melody for which the most suitable relationship is a logarithmic relationship and also a reference signal representative of the variations.
  • FIG. 3 c represents the variations in volume of a melody for which the most suitable relationship is the potential relationship and also a reference signal representative of the variations.
  • FIG. 4 a illustrates a burner of an appliance in one implementation.
  • FIG. 4 b illustrates a burner of the appliance in another implementation.
  • FIG. 5 is a cross-sectional view of a valve of an appliance in one implementation, with a voice-coil type actuator.
  • FIG. 6 is a block diagram illustrating a kit in one implementation for incorporation into a domestic gas appliance.
  • FIG. 1 illustrates, in the form of a block diagram, a domestic gas appliance 100 according to one implementation of the present invention.
  • the appliance 100 may be, for example, a gas heating appliance, a gas stove, or a lighting appliance such as a gas lamp.
  • appliance 100 comprises at least one burner 1 where a flame is generated, at least one valve 2 associated to the burner 1 , and control means 3 that is associated with valve 2 and which is adapted to generate at least one control signal Sc used in the control of valve 2 to regulate the passage of gas to burner 1 .
  • the appliance 100 may also comprise lighting means, such as, for example, an igniter or a spark generator (not shown in the figures) to ignite the flame in the burner 1 .
  • control means 3 is adapted to cause the lighting means to ignite the gas that reaches burner 1 at a given moment, the flame being generated as a result of the lighting.
  • the control means 3 may comprise a DSP (Digital Signal Processor), a control device, a microprocessor or an equivalent device.
  • DSP Digital Signal Processor
  • control means 3 receives an analog reference signal Sref representative of the amplitudes of a sequence of sounds, and generates the control signal Sc in accordance with a reference signal Sref to cause the flame in the burner 1 to move in accordance with the sequence of sounds.
  • control signal Sc is digital, while in other implementations the control signal Sc is analogical.
  • the sequence of sounds comprises a melody or music, although any other type of sequences can be used, such as, for example, the simulation of sea-waves.
  • the sequence of sounds is generated by a stereo, music centre or any other type media player 5 that transmits an analog sound signal Sson identifying the music it is playing.
  • the appliance 100 comprises an amplifying stage 6 that receives the sound signal Sson and which regulates the gain of the sound signal Sson. In one implementation, if the sound signal Sson has very high voltage values the amplifying stage 6 decreases the voltage values, if the sound signal Sson has very low voltage values it increases the voltage values, and if the sound signal Sson has intermediate or acceptable voltage values it maintains voltage values. Voltage values that can be accepted and treated by the control means 3 can be understood as intermediate or acceptable voltage values, which can depend on the control means 3 used.
  • the appliance 100 comprises an adaptation stage 7 where the signal leaving the amplifying stage 6 is treated.
  • the manufacturer presets the parameter of the signal that is to be taken into account in generating the control signal Sc, which can correspond with its size (instantaneous signal), its effective value or which can be in accordance with the detection of peaks, for example.
  • the output signal of the adaptation stage 7 corresponds with the reference signal Sref that reaches the control means 3 , as shown in FIG. 1 , the control means 3 generating the control signal Sc in accordance with the reference signal Sref.
  • FIGS. 3 a and 3 c illustrate exemplary reference signals, Sref, producible by an adaptation stage 7 .
  • the relationship between the reference signal Sref and the control signal Sc may be, for example, linear, logarithmic or potential, which are represented by the curves shown in FIGS. 2 a , 2 b and 2 c respectively.
  • FIGS. 3 a , 3 b and 3 c show three different types of melodies, with different rhythms, shown in accordance with the variations in the amplitudes (peaks and/or valleys) of the melodies (reference signal Sref in the x-axis). In the representation shown in FIG.
  • the amplitude of the melody suffers frequent variations between an area of maximum levels Zmax and an area of minimum levels Zmin, these being major variations in amplitude, as a result of which the most suitable relationship to be applied in this case is the linear relationship shown in FIG. 2 a .
  • the volume of the melody suffers frequent variations only in the area of minimum levels Zmin, these being minor variations in amplitude, and suffers very few variations between the area of minimum levels Zmin and the area of maximum levels Zmax, and/or area of maximum levels Zmax.
  • control means 3 automatically selects the most appropriate relationship to be applied.
  • one or more user interfaces are provided that enables the user to select between an automatic mode and a manual mode. In the automatic mode the control means automatically selects the most appropriate relation, whereas in the manual mode the user is permit to select the relationship to be applied.
  • Appliance 100 may comprise a single burner 1 with a single combustion area 1 a where a flame is ignited, or with a plurality of combustion areas 1 a where a flame is capable of being ignited in each of the combustion areas 1 a . Appliance 100 may also comprise a plurality of burners 1 , each of them comprising one or more combustion areas 1 a . In one implementation appliance 100 comprises, for each combustion area la, an associated gas supply valve 2 with the control means 3 capable of generating a control signal Sc for each valves 2 . The control signals Sc may be equal or different for all the valves 2 . In one implementation control signals Sc having different relationships (e.g., linear, logarithmic, potential) with the reference signal Sref are supplied to different valves 2 of a gas appliance.
  • control signals Sc having different relationships (e.g., linear, logarithmic, potential) with the reference signal Sref are supplied to different valves 2 of a gas appliance.
  • a control signal Sc having a linear relationship with the reference signal Sref is supplied to one valve 2 while a control signal Sc having a logarithmic or potential relationship with the reference signal Sref is supplied to another valve 2 .
  • the flame may be modulated or modified separately to the rest of the combustion areas 1 a .
  • the burner 1 is not restricted to a specific shape and/or arrangement and can comprise any conventional shape such as those shown in FIG. 4 a (with a single combustion area 1 a in this case) and in FIG. 4 b (with two combustion areas 1 a in this case, also disposed at different heights).
  • each combustion area 1 a the corresponding tube 1 c comprises a plurality of grooves 1 a ′ through which the flame exits to the outside.
  • the shape and/or arrangement of a combustion area 1 a may be different to that of another combustion area 1 a (the pipe 1 c of another combustion area 1 a ), and the burner 1 can comprise an intermediate pipe 1 b to connect the flame of one combustion area 1 a with another combustion area 1 a , so that the flames present in the burner 1 display a continuity despite being generated in different combustion areas 1 a.
  • valves 2 that can be opened and closed at high speeds, speeds in excess of about 30 Hz for example, is advised.
  • the valve 2 comprises a voice-coil type actuator as shown in FIG. 5 .
  • This type of actuator comprises a permanent magnet 2 b , and in one implementation the permanent magnet 2 b is axially magnetised while in another it is radially magnetised.
  • the valve 2 may comprise, without limitation, a piezoelectric-bender actuator or an ultrasonic-type motor, which can also be opened and closed at high speeds.
  • valve 2 comprises a voice-coil type actuator.
  • This type of actuator comprises a moving part 2 a (moving reel), the movement of which causes the valve 2 to open and close, thereby enabling or preventing the passage of gas to the burner 1 .
  • the voice-coil has a low mechanical inertia in order to allow the moving part 2 a to move at frequencies of 30 Hz or greater.
  • an electrical current is supplied to the actuator with the result that a magnetic field is generated that is opposed to the force exerted by the permanent magnet 2 b , causing the valve 2 to open.
  • appliance 100 comprises a driver 8 or a control system (not shown in the figures) for the valve 2 , which receives the control signal Sc.
  • the driver 8 generates the electrical current for the actuator of the valve 2 in accordance with the control signal Sc, which in the implementation in which the control signal Sc is digital it can be a square wave signal.
  • the square signals may comprise, in each period, an interval Ton in which the signal corresponds with a “1” logic, and an interval Toff in which the signal corresponds with a “0” logic, the relationship between the intervals Ton and Toff being known as a duty-cycle.
  • the adjusting of the duty-cycle of the electrical current signal enables the opening and closing of the valve 2 to be controlled.
  • the valve 2 can comprise intermediate positions, not only a totally open position or a totally closed position, different amounts of gas being allowed through said valve 2 towards the burner 2 depending on said control signal Sc.
  • the sequence of sounds is generated by a sound device 5 , which in one implementation is a conventional device that is already disposed with an output that corresponds with the sound signal Sson.
  • the sound device 5 can comprise, for example, capture devices such as CD and DVD players, microphones etc, or devices known as virtual electronic devices, such as a guitar or an electronic baton for example.
  • the sound device 5 can also be a device external to the heating appliance 100 , as shown in FIG. 1 , or it can be built into the appliance 100 itself. In the event that the sound device 5 is external, the appliance 100 comprises an input 15 for receiving the sound signal Sson originating from the sound device 5 , which in one implementation comprises a plug.
  • a control system of the present invention includes an ON/OFF switch that permits a user of the system to deactivate the control system.
  • the gas control valve 2 is adapted to remain open in spite of any audio signal introduced into the system.
  • the ON/OFF control switch is operatively connected to the control means 3 so that a control signal is generated to maintain the gas control valve 2 open.
  • the ON/OFF switch deactivates the control means 3 , or otherwise acts upon other control system components in a manner such that no control signal is delivered to the gas control valve 2 , the gas control valve being adapted to assume and maintain an open position in the absence of receiving a control signal.
  • kits 300 for integration into a convention gas appliance comprises a gas control valve 200 and a controller 205 , with an optional ON/OFF switch 20 .
  • the gas control valve 200 is installed in the gas line 208 between a shut-off valve 210 and a gas burner 220 .
  • the shut-off valve 210 is a safety valve that is coupled to a thermocouple situated in or near the burner and is adapted to close upon a disruption or extinguishing of a pilot flame associated with the burner 220 .
  • the shut-off valve is a manually operated valve.
  • the controller 205 comprises at least an analog input for receiving an analog audio signal and also a control device/control means, similar to that previously discussed, for generating a control signal to be delivered to and regulate the position of control valve 205 .
  • the controller may include one or more of the components 5 , 6 , 7 , 8 and 9 or any of the other features previously described herein.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Feeding And Controlling Fuel (AREA)
US12/792,632 2009-06-04 2010-06-02 Domestic gas appliance with flame control Abandoned US20100310997A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200930261A ES2381512B1 (es) 2009-06-04 2009-06-04 Aparato domestico a gas con control de llama
ESP200930261 2009-06-04

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US20100310997A1 true US20100310997A1 (en) 2010-12-09

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EP (1) EP2261562A3 (fr)
CA (1) CA2706232A1 (fr)
ES (1) ES2381512B1 (fr)

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US7967007B2 (en) 2006-05-17 2011-06-28 David Deng Heater configured to operate with a first or second fuel
US7967006B2 (en) 2006-05-17 2011-06-28 David Deng Dual fuel heater
US8011920B2 (en) 2006-12-22 2011-09-06 David Deng Valve assemblies for heating devices
US8152515B2 (en) 2007-03-15 2012-04-10 Continental Appliances Inc Fuel selectable heating devices
US8241034B2 (en) 2007-03-14 2012-08-14 Continental Appliances Inc. Fuel selection valve assemblies
US8317511B2 (en) 2006-12-22 2012-11-27 Continental Appliances, Inc. Control valves for heaters and fireplace devices
US8465277B2 (en) 2009-06-29 2013-06-18 David Deng Heat engine with nozzle
US8516878B2 (en) 2006-05-17 2013-08-27 Continental Appliances, Inc. Dual fuel heater
US8545216B2 (en) 2006-12-22 2013-10-01 Continental Appliances, Inc. Valve assemblies for heating devices
US8752541B2 (en) 2010-06-07 2014-06-17 David Deng Heating system
US8985094B2 (en) 2011-04-08 2015-03-24 David Deng Heating system
US9022064B2 (en) 2012-05-10 2015-05-05 David Deng Dual fuel control device with auxiliary backline pressure regulator
US9222670B2 (en) 2010-12-09 2015-12-29 David Deng Heating system with pressure regulator
US9423123B2 (en) 2013-03-02 2016-08-23 David Deng Safety pressure switch
US9739389B2 (en) 2011-04-08 2017-08-22 David Deng Heating system
US9752779B2 (en) 2013-03-02 2017-09-05 David Deng Heating assembly
US9752782B2 (en) 2011-10-20 2017-09-05 David Deng Dual fuel heater with selector valve
US9829195B2 (en) 2009-12-14 2017-11-28 David Deng Dual fuel heating source with nozzle
US10073071B2 (en) 2010-06-07 2018-09-11 David Deng Heating system
US10222057B2 (en) 2011-04-08 2019-03-05 David Deng Dual fuel heater with selector valve
US10240789B2 (en) 2014-05-16 2019-03-26 David Deng Dual fuel heating assembly with reset switch
US10344987B2 (en) * 2016-07-08 2019-07-09 Wheeldock, Llc Sound-based flame modulation system
US10429074B2 (en) 2014-05-16 2019-10-01 David Deng Dual fuel heating assembly with selector switch
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EP2261562A2 (fr) 2010-12-15
CA2706232A1 (fr) 2010-12-04
ES2381512A1 (es) 2012-05-28
ES2381512B1 (es) 2013-05-07

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