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433 条记录 (耗时 0.025 秒)

    Premixing Apparatus
    1.
    发明公开
    Premixing Apparatus 审中-公开

    公开(公告)号：US20230184426A1

    公开(公告)日：2023-06-15

    申请号：US18056921

    申请日：2022-11-18

    申请人： RINNAI CORPORATION

    发明人： Katsuya Noritake

    IPC分类号： F23D14/04 ,  F23D14/60 ,  F23D14/62

    CPC分类号： F23D14/04 ,  F23D14/60 ,  F23D14/62

    摘要： In a premixing apparatus that mixes a fuel gas with air, supplies an air-fuel mixture to a burner through a fan, and carries out a control that regulates an opening degree of a variable throttle valve, which is interposed in a gas supply passage, so that an excess air ratio of an air-fuel mixture becomes an appropriate value, in a case where a detected excess air ratio deviates to one side, e.g., a large side, from an acceptable range, a motor is repeatedly caused to rotate by a unit-angle in an opening-degree increasing direction until the detected excess air ratio becomes an appropriate value. In a case where the detected air ratio deviates to the other side, e.g., a small side, from the acceptable range, the motor is caused to rotate, at a high speed in an opening-degree decreasing direction, till a first position that is anticipated that the excess air ratio will become a value that deviates by a fixed quantity from the acceptable range to a large side, thereafter, the motor is caused to rotate, at the high speed in an opening-degree increasing direction, till a second position that is a short of a target position, and subsequently, the motor is caused to rotate by the unit-angle in the opening-increasing direction.

    Combustion device for improving turndown ratio
    2.
    发明授权
    Combustion device for improving turndown ratio 有权

    公开(公告)号：US09970654B2

    公开(公告)日：2018-05-15

    申请号：US14396314

    申请日：2013-04-15

    申请人： KYUNGDONG NAVIEN CO., LTD.

    发明人： Hyoung Rae Kim ,  Seung Kil Son

    IPC分类号： F23D14/62 ,  F23D14/08 ,  F23D14/60 ,  F23D14/64 ,  F23N1/02

    CPC分类号： F23D14/08 ,  F23D14/60 ,  F23D14/62 ,  F23D14/64 ,  F23D2203/007 ,  F23D2900/00003 ,  F23N1/027

    摘要： The purpose of the present invention is to provide a combustion device for improving a turndown ratio, which is capable of stably implementing a combusted state in a low-output load region by improving a turndown ratio of a burner. To this end, the present invention provides the combustion device having a premixing chamber (300) which is connected to an air supply tube (100) and a gas supply tube (200), and which has a space for premixing air and gas provided therein, wherein the space for premixing the air and gas supplied from the air supply tube (100) and the gas supply tube (200) is divided into multiple stages of a venturi structure in the premixing chamber (300), and the discharging direction of the gas discharged inside the premixing chamber (300) through the gas supply tube (200) is formed in parallel to the flow direction of the gas supplied inside the premixing chamber (300) through the air supply tube (100).

    Regulating Turbulent Flows
    3.
    发明申请
    Regulating Turbulent Flows 审中-公开

    公开(公告)号：US20180094809A1

    公开(公告)日：2018-04-05

    申请号：US15722129

    申请日：2017-10-02

    申请人： Siemens Aktiengesellschaft

    发明人： Rainer Lochschmied ,  Mike Schmanau ,  Bernd Schmiederer

    IPC分类号： F23N1/02

    CPC分类号： F23N1/025 ,  F23D14/60 ,  F23N1/027 ,  F23N5/18 ,  F23N2005/181 ,  F23N2023/12 ,  F23N2023/14 ,  F23N2025/06 ,  F23N2033/08

    摘要： The present disclosure deals with the regulation of fluid flows in the presence of turbulence. The teachings thereof may be embodied in regulating a fluid in a combustion device. For example, a method for regulating a burner device may include: requesting a flow of a fluid through a feed duct; assigning the requested flow to a setting of a first actuator; transmitting a first signal to set the first actuator; generating a mass flow signal representing an actual flow through the side duct; correlating the second signal to an actual value of the flow through the side duct; correlating the requested flow through the feed duct to a required flow through the side duct; generating a regulation signal with the regulator for the second actuator as a function of the actual value of the flow through the side duct and the requested value of the flow through the side duct; and transmitting the generated regulation signal to the second actuator.

    Turn Down Ratio (TDR) Damper
    5.
    发明申请
    Turn Down Ratio (TDR) Damper 审中-公开

    公开(公告)号：US20170219247A1

    公开(公告)日：2017-08-03

    申请号：US15415251

    申请日：2017-01-25

    申请人： DAESUNG CELTIC ENERSYS Co., Ltd

    发明人： Sung Tae CHO ,  Chul Hee CHO

    IPC分类号： F24H9/20 ,  F23D14/02

    CPC分类号： F24H9/2035 ,  F23D14/02 ,  F23D14/60 ,  F23D14/62 ,  F23N1/027 ,  F23N2035/02 ,  F23N2035/12 ,  F23N2037/10

    摘要： A turn down ratio (TDR) damper which controls an amount of gas and air flowing in the TDR damper and deliver the controlled gas and air to a turbo fan is disclosed. The TDR damper includes: air passages comprising a first air passage and a second air passage, the first air passage and the second air passage separately formed so that the air move through each path; gas passages comprising a first gas passage and a second gas passage, the first gas passage and the second gas passage separately formed so that the gas move through each path; and opening and closing means for opening and closing the second air passage and the second gas passage at the same time. The air passages and the gas passages may be separately formed and reached outlets connected to the turbo fan so that the air and gas may be delivered to the turbo fan through a separate path.

    Fuel selector valve with shutter mechanism for a gas burner unit
    7.
    发明授权
    Fuel selector valve with shutter mechanism for a gas burner unit 有权

    公开(公告)号：US09671111B2

    公开(公告)日：2017-06-06

    申请号：US14209250

    申请日：2014-03-13

    申请人： GHP Group, Inc.

    发明人： Verlon (Dan) Downing

    IPC分类号： F23Q9/08 ,  F23N1/02 ,  F23N5/24 ,  F23D14/10 ,  F23D14/60 ,  F23D14/64

    CPC分类号： F23N1/027 ,  F23D14/10 ,  F23D14/60 ,  F23D14/64 ,  F23N5/242 ,  F23N2021/10 ,  F23N2035/06 ,  F24C3/006

    摘要： A selector valve and shutter mechanism for use with a gas burner unit is disclosed. The valve includes a pilot gas manifold which is in communication with two pilot flames and associated ODS for two different kinds of gas fuel. The shutter mechanism opens or closes an opening to a burner mixing chamber to thereby adjust the flow of air into the mixing chamber depending on the fuel selected, and preferably is in the form of a sleeve that in one approach is rotatably mounted on a part of the burner mixing chamber, with a part of the sleeve covering the mixing chamber opening in one orientation and opening it to airflow in another orientation. A first gear is mounted on the sleeve which is engageable with a second gear mounted on part of the valve which is rotatable to one position or another depending on the gas fuel selected, the sleeve thereby adjusting the airflow to the mixing chamber in response to the valve position. In another approach, the cover moves linearly along the burner tube between orientations. A novel selector mechanism having a manifold for gas flows and a plate-like element to adjust the manifold is also disclosed.

    HEATING APPARATUS WITH FAN
    8.
    发明申请
    HEATING APPARATUS WITH FAN 审中-公开
    加热风扇装置

    公开(公告)号：US20170067643A1

    公开(公告)日：2017-03-09

    申请号：US15233452

    申请日：2016-08-10

    申请人： David Deng

    发明人： David Deng

    IPC分类号： F24B1/18 ,  F24H3/10 ,  F23D14/60 ,  F23B80/04 ,  F23C7/06

    CPC分类号： F24B1/1808 ,  F23B80/04 ,  F23C7/06 ,  F23D14/60 ,  F23D14/64 ,  F23D2203/102 ,  F23J2211/101 ,  F23J2213/203 ,  F23L13/02 ,  F23L13/06 ,  F23N2035/06 ,  F24C3/004 ,  F24C3/006 ,  F24D2200/10 ,  F24H3/105 ,  F24H9/0063 ,  F24H9/2085

    摘要： A heating apparatus can have a sealed combustion chamber, a burner, and various air channels to direct air into the sealed combustion chamber and to provide heated air to the desired area or environment such as an interior room. A channel can direct a flow of air along a face of the sealed combustion chamber to cool the face. The channel can be within or outside of the sealed combustion chamber. Alternatively, or in addition, the heating apparatus can be capable of operating as a direct vent device or as a vent free device.

    摘要翻译： 加热装置可以具有密封的燃烧室，燃烧器和各种空气通道，以将空气引导到密封的燃烧室中并将加热的空气提供到期望的区域或环境，例如室内空间。 通道可以沿着密封的燃烧室的表面引导空气流以冷却表面。 通道可以在密封的燃烧室的内部或外部。 或者或另外，加热装置能够作为直接通风装置或无通风装置操作。

    Modulating burner system
    9.
    发明授权
    Modulating burner system 有权
    调节燃烧器系统

    公开(公告)号：US09528712B2

    公开(公告)日：2016-12-27

    申请号：US14064282

    申请日：2013-10-28

    申请人： Pat Caruso

    发明人： Pat Caruso

    IPC分类号： F23D14/02 ,  F23N1/02 ,  F24D19/10 ,  F23N3/08 ,  F24D5/08 ,  F23D14/34 ,  G05D11/03 ,  G05D7/01 ,  G05D11/00 ,  F23N5/18

    CPC分类号： F24D19/1084 ,  F23D14/60 ,  F23N1/022 ,  F23N1/025 ,  F23N3/085 ,  F23N2005/181 ,  F23N2025/12 ,  F23N2033/08 ,  F23N2035/16 ,  F23N2900/05181 ,  F24D5/08 ,  G05D11/006

    摘要： A modulating burner system includes a speed control responsive to inputs received from a thermostat. The speed control modulating a blower which provides combustion air and a vacuum proportional to the speed of the blower. The modulating burner system further includes a gas amplifying valve in communication with the vacuum via a vacuum conduit. The gas amplifying valve providing modulated combustion gas responsive to the vacuum; wherein modulated combustion air and gas communicated to a burner for continuously variable firing rates of 50 to 100% of the maximum firing rate. The modulating burner system further includes control circuit dampers for smoothing out vacuum spikes and fluctuations.

    摘要翻译： 调节燃烧器系统包括响应于从恒温器接收的输入的速度控制。 速度控制调节提供燃烧空气的鼓风机和与鼓风机速度成比例的真空。 调节燃烧器系统还包括通过真空管道与真空连通的气体放大阀。 气体放大阀响应于真空提供调节的燃烧气体; 其中调节的燃烧空气和气体连通到燃烧器，以连续变化的燃烧速率为最大燃烧速率的50％至100％。 调节燃烧器系统还包括用于平滑真空尖峰和波动的控制电路阻尼器。