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公开(公告)号：US11898749B2
公开(公告)日：2024-02-13
申请号：US17279913
申请日：2019-08-23
申请人： SIT S.P.A.
IPC分类号： F23N1/00
CPC分类号： F23N1/005 , F23K2900/05002 , F23N2235/14 , F23N2235/16 , F23N2235/20 , F23N2235/24
摘要： A gas delivery apparatus has a delivery pipe that extends from a gas entrance end to a gas delivery end along which an entrance component, a pressure regulator and a flow rate regulator are present, coordinated with each other in order to supply on each occasion the desired quantity of gas to a burner of an apparatus fed with gas. or p with an air-gas mixture.
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公开(公告)号：US20230003389A1
公开(公告)日：2023-01-05
申请号：US17809849
申请日：2022-06-29
申请人： SIT S.P.A.
发明人： Andrea Veronese
IPC分类号： F24C3/12
摘要： The invention relates to a flame control device for managing the operation of a gas burner apparatus, comprising: an input prepared to receive a supply signal, an output intended to be connected to said gas burner apparatus, a control unit connected to said input to be supplied by the supply signal and to said output to control the operation of said burner by means of at least one output signal, a load configured to be controlled by the control unit so as to absorb power in a varying manner over time when said input is supplied by the supply signal.
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公开(公告)号：US11137137B2
公开(公告)日：2021-10-05
申请号：US16302197
申请日：2017-05-09
申请人： SIT S.P.A.
摘要： A method for modulating a valve regulating the flow rate of gas towards a burner is presented. The valve with the associated closure member configured to operate with a predetermined characteristic curve, the flow rate delivered being proportionally related to the strength of a first current signal sent to the modulator such that the flow rate can be modulated, using the proportionality, within a range of modulation between a maximum flow rate and a minimum flow rate. To deliver controlled gas flow rates that are below the minimum flow rate, the modulator is driven with a second PWM voltage signal capable of generating a particular second PWM current signal, to move the closure member of the valve according to the second signal. First and second time intervals correspond to successive durations of high signal and low signal, respectively, the sum being equal to a period of the second signal.
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4.发明申请公开(公告)号：US20210190316A1
公开(公告)日：2021-06-24
申请号：US17128443
申请日：2020-12-21
申请人： SIT S.p.A.
摘要： A control system of a water heater apparatus with a combustible gas burner is presented where the apparatus includes a pilot burner with an intermittent-type pilot flame, a main burner, a pilot valve and a main valve, a control unit, a flame detection electrode, introduced into the flame of the pilot burner, and which is configured to conduct an ionization current. The control unit is configured to measure/detect a variation involving increase/decrease of the intensity of ionization current detected, the variation in intensity of ionization current being generated during the change between a first condition, in which the ionization current identifies the ignition state of only the pilot burner, and a second condition, in which the ionization current identifies the simultaneous ignition state of the pilot burner and the main burner so that, by detection of the measurement/variation of ionization current, the effective ignition of the main burner is recognized.
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公开(公告)号：US20200056783A1
公开(公告)日：2020-02-20
申请号：US16608170
申请日：2017-10-05
申请人： SIT S.P.A
发明人： Daniele SIMIONI , Renzo MARCANZIN
摘要： Valvular control circuit (10) comprising a first valve element (12) coupled with a manual drive member (20) to generate a pilot light (21), a second valve element (14) coupled with a second valve switch (15), a control and command unit (16) coupled with a DC/DC electric voltage converter (17) and able to command said second valve switch (15) by means of a command signal, wherein said valvular control circuit (10) comprises a first thermoelectric power source (22) coupled with the DC/DC electric voltage converter (17), and a second thermoelectric power source (23) coupled with at least one of either the first valve element (12) or the second valve element (14), said thermoelectric power sources (22, 23) both being fed by a pilot light (21).
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公开(公告)号：US10139106B2
公开(公告)日：2018-11-27
申请号：US14901963
申请日：2014-07-01
申请人： SIT S.p.A.
发明人： Antonio Vendramini
摘要： A method for controlling the operation of a burner, the burner including a control board with a first control unit and a first memory, which stores first values of operating parameters of the burner, and a display device, which displays one or more items of data relating to the functioning of the burner, the display device including a second memory, which stores second values of operating parameters of the burner, each first and second operating parameters being capable of being changed over time. The method includes setting for each operating parameter at least one first value in the first memory, and at least one second value in the second memory; comparing, for each operating parameter, a corresponding first value and second value; if the first value and the second value are different, changing one of the first or second values, so that the first and second values are the same.
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公开(公告)号：US20160161114A1
公开(公告)日：2016-06-09
申请号：US14902159
申请日：2014-06-17
申请人： SIT S.p.A.
发明人： Antonio RANALLI , Massimo LENTI
CPC分类号： F23D14/62 , F23D14/36 , F23K2900/05002 , F23L5/02
摘要： A mixer device for burner equipment includes flow guide means for guiding an air-gas mixture to the intake of a fan rotatable about a first axis, the guide means including a tubular Venturi effect conduit structure with axially symmetric contiguous converging and diverging portions about a second axis, a section being provided between the portions of conduit into which the gas flow is delivered for mixing with the air flow supplied through the converging portion. The fan's axis of rotation does not coincide with the axis of longitudinal development of the Venturi effect conduit, the offset between the first and second axes allows placement of a valve which supplies the gas flow into the Venturi effect conduit with a configuration in which the projection of the overall dimensions of the Venturi effect conduit and of the valve unit, in the rotational axis direction, lies within the fan's cover plate projection.
摘要翻译： 用于燃烧器设备的混合器装置包括用于将空气 - 气体混合物引导到围绕第一轴线可旋转的风扇的入口的流动引导装置，所述引导装置包括管状文丘里效应管道结构，其具有围绕第二轴线对称的连续收敛和发散部分 轴线的一部分设置在导管的部分之间，气流被输送到该部分中以与通过会聚部分供应的空气流混合。 风扇的旋转轴线与文丘里效应管道的纵向发展轴线不一致，第一和第二轴线之间的偏移允许放置将气流供应到文丘里效应管道中的阀，其中投影 文丘里效应管道和阀门单元在旋转轴线方向的总体尺寸位于风扇盖板突出部内。
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8.发明授权公开(公告)号：US11988384B2
公开(公告)日：2024-05-21
申请号：US17296681
申请日：2019-11-25
申请人： SIT S.P.A.
发明人： Massimo Giacomelli
CPC分类号： F23N1/005 , F23K5/007 , F23K2900/05002 , F23N2235/16 , F23N2235/20 , F23N2235/24
摘要： A device for controlling a combustible gas supply to a heating apparatus burner includes:
a valve with a respective valve seat which is associated with a corresponding closure member provided with a respective control rod for opening the valve seat,
a system for amplifying movement of the control rod which has a snap-fit spring which acts on the rod and a pushing element which in turn acts on the spring, a first end of a lever acts on the pushing element which is hinged at a fulcrum location which is positioned at an opposing second end of the lever,
actuator which moves the lever, operationally associated with the lever in a position between the opposing lever ends to control the lever about the fulcrum location resulting in movement of the closure member away from and towards the valve seat, the actuator comprising a linear actuator element with converse piezoelectric effect.-
9.发明授权公开(公告)号：US11680707B2
公开(公告)日：2023-06-20
申请号：US17279805
申请日：2019-09-17
申请人： SIT S.P.A.
发明人： Michele Benvenuto , Michele Ciscato
CPC分类号： F23Q9/12 , F23Q3/008 , F24H1/186 , F24H9/2035
摘要： An apparatus for heating water comprises a main burner, a pilot burner, a valve assembly with a main valve and a pilot valve having a shutter, a magnetic thermoelectric safety assembly with a thermocouple device holding the pilot valve open in the presence of a flame in the pilot burner, a button member mounted on a rod that is slidingly guided in the valve assembly and an electrical ignition member supplied via an electrical connection circuit, a switch device in the circuit being designed to be switched by means of the button member so as to close the electrical circuit when said button member is pressed in order to carry out actuation of the magnetic assembly so as to open the passage of gas through the pilot valve towards the pilot burner and to ignite the pilot flame by means of the sparks generated by the ignition member.
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公开(公告)号：US20210156594A1
公开(公告)日：2021-05-27
申请号：US15734609
申请日：2019-05-31
申请人： SIT S.P.A.
发明人： Antonio VENDRAMINI
摘要： A safety system for a gas apparatus (100) for heating water, the gas apparatus comprising a tank (1) for containing water and a first gas burner (2) for heating the water contained inside the tank (1). The safety system (200, 200′) comprises a first sensor (9) suitable for generating a first signal which represents a temperature of the water contained in the tank (1), a second sensor (10) suitable for generating a second signal which represents a temperature of the water contained in the tank (1), a supply circuit (11) for energizing a first actuator (4) of a first valve (3) which is arranged to allow to pass/intercept a flow of gas towards the first gas burner (2), the first actuator (4) being arranged to actuate so as to open and close the first valve (3) when it is energized and non-energized, respectively, a switch device (13) which is arranged in the supply circuit (11) in order to close/open the supply circuit (11) so as to energize/not to energize the first actuator (4), a digital processing unit (14) which is operatively connected to the first and/or second sensor (9, 10) and which is configured to compare a set-point value which represents a preselected temperature with the first or second signal and a control device (16) which is operatively connected to the switch device (13) and to the first and second sensors (9, 10). The control device (16) comprises an analogue comparator (17) which is operatively connected to the first and second sensors (9, 10) in order to compare the first signal with the second signal and the control device (16) is configured to generate a control signal (18) for controlling so as to open/close the switch device (13) on the basis of the comparison between the first and second signals carried out by the analogue comparator (17).
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