Temperature sensor for gas burner and assembly consisting of such sensor and burner

    公开(公告)号:US11353213B2

    公开(公告)日:2022-06-07

    申请号:US17437473

    申请日:2020-03-03

    申请人: POLIDORO S.P.A.

    摘要: A temperature sensor (1) for gas burner (2) having a thermocouple (11) comprising electric conductors (15) and a connection element (12) to connect to the burner (2) associated with a free end (18) of such thermocouple (11), said connection element (12) being suitable for being inserted inside a seat of the sensor (8) formed inside a wall (4) of the burner (2) and having a first end (26) suitable for being placed at the outer surface (6) of the burner (2), said thermocouple (11) being inserted inside a blind hole (29) of the connection element (12) which opens at a second end (28) of said connection element (12). Said blind hole (29) ends with at least one part (31) convergent towards an end zone (K) of the hole (29), said part (31) getting in contact with the thermocouple (11) inserted inside the connection element, the connection element (12) being made from an iron-chrome-aluminum alloy. An assembly comprising such temperature sensor and a burner is also claimed.

    CONTROL CIRCUIT FOR AN ELECTROMAGNETIC VALVE, GAS BURNING SYSTEM, METHOD FOR MONITORING A SWITCHING STATE OF AN ELECTROMAGNETIC VALVE AND METHOD FOR OPERATING A GAS BURNING SYSTEM

    公开(公告)号:US20210215341A1

    公开(公告)日:2021-07-15

    申请号:US17148739

    申请日:2021-01-14

    IPC分类号: F23N5/24 F23N1/00 F23N5/10

    摘要: An electromagnetic valve has a magnetic coil and a movable element coupled to a valve element. The magnetic coil, when excited, conveys the movable element in one direction to move the valve element from its initial position into its active position. A control circuit for the electromagnetic valve has a current source for optionally supplying current to the magnetic coil and a measuring device for measuring a voltage level of the magnetic coil and/or a current level through the magnetic coil. A monitoring unit which is connected to the measuring device establishes a switching state of the electromagnetic valve corresponding to the position of its valve element based on the intended current supply state of the current source and the current and/or voltage characteristic measured by the measuring device and, if appropriate, determines a fault state of the current supply and/or the electromagnetic valve.

    COOKING APPLIANCE
    6.
    发明申请

    公开(公告)号:US20210199290A1

    公开(公告)日:2021-07-01

    申请号:US17198935

    申请日:2021-03-11

    申请人: ORKLI, S.COOP.

    摘要: Gas cooking appliance including at least one burner and an ignition device configured to ignite the burner. The ignition device includes a pulse generator configured to send at least one electric pulse for the purpose of generating a spark to ignite the burner. The cooking appliance also includes a flame detector configured to detect the presence/absence of a flame in the burner. The pulse generator is in electrical contact with a part of the burner and the flame detector is connected to ground. The cooking appliance further includes insulating means that insulates the burner with respect to ground, such that when the pulse generator sends at least one electric pulse, an electric spark capable of igniting the burner is generated between the burner and the flame detector.

    Dual-gas source gas control system with anti-gas source misconnection and control circuit thereof

    公开(公告)号:US10962226B2

    公开(公告)日:2021-03-30

    申请号:US16813713

    申请日:2020-03-09

    IPC分类号: F23N5/24 F23N5/10

    摘要: A dual-gas source gas control system with anti-gas source misconnection and a control circuit thereof belonging to the gas combustion technical field are provided. The disclosure solves unreasonable design and other problems in the related art. The dual-gas source gas control system with anti-gas source misconnection and the control circuit thereof includes a power-on circuit, connected in series with an external power supply and an igniter switch to form a loop, including a self-locking switch triode connected in series with the external power supply and a self-locking amplifying triode connected to a base electrode of the self-locking switch triode; an MCU control circuit, including an MCU control chip, wherein the power-on circuit is connected to a power input pin of the MCU control chip, one pin on the MCU control chip is configured to detect whether the power-on circuit is connected.

    GAS APPLIANCE AND CONTROL METHOD THEREOF
    8.
    发明申请

    公开(公告)号:US20190338951A1

    公开(公告)日:2019-11-07

    申请号:US15970097

    申请日:2018-05-03

    IPC分类号: F23N5/10 F23Q9/14

    摘要: A gas appliance includes a burner, a gas valve, an ignitor, a thermocouple, and a control device, wherein the control device is adapted to execute a control method comprising the following steps: controlling the ignitor to ignite and the gas valve to open; receiving a sensing voltage output from the thermocouple; stop the ignitor from igniting and controlling the gas valve to keep a gas pipe be in an open state when the sensing voltage increases to a first voltage; receiving the sensing voltage output from the thermocouple continuously, and controlling the gas valve to block the gas pipe when the sensing voltage decreases from higher than a second voltage to lower than the second voltage, wherein the second voltage is higher than the first voltage. Whereby, an ignition procedure could be speeded up and the gas could be blocked earlier as the flames are extinguished.

    GAS BURNER SYSTEM FOR A GAS COOKING HOB
    10.
    发明申请

    公开(公告)号:US20190154255A1

    公开(公告)日:2019-05-23

    申请号:US16313170

    申请日:2017-07-03

    IPC分类号: F23D14/34 F23N5/10 F24C3/08

    摘要: The present invention relates to a gas burner system (10) for a gas cooking hob, in particular for a domestic gas cooking hob. Said gas burner system (10) comprises a gas burner assembly (12) including a plurality of flame ports. At least one pot support (14) is arranged above and/or around the gas burner assembly (12) and defining a distance between said gas burner assembly (12) and a bottom of a cooking pot. At least one supply air fan (16) is provided for generating an air flow (24) to the gas burner assembly (12). A gas inlet (38) is connectable or connected to a gas supply. A gas regulator (18; 30; 36; 38) is provided for regulating a gas flow from the gas inlet (38) to the gas burner assembly (12). A control unit (20) is provided for controlling the supply air fan (16) and the gas regulator (18; 30; 36; 38). At least one thermocouple (22) is provided for detecting flames above the gas burner assembly (12) and for providing a flame signal (28) to the control unit (20).