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公开(公告)号：US11460352B2
公开(公告)日：2022-10-04
申请号：US16475315
申请日：2017-10-30
发明人： Zhi Zhuang
摘要： The present invention discloses is a method for collecting a temperature of a heating pipeline, the method comprising: collecting a circuit signal of a heating resistor; calculating a current resistance value of the heating resistor according to the circuit signal; and calculating a current temperature of the heating pipeline according to the current resistance value. By using the method for collecting the temperature of the heating pipeline, measurement of the temperature of the heating pipeline can be realized by directly measuring the resistance value of the heating resistor in the heating pipeline, which may avoid the use of an additional temperature sensor, thereby reducing the number of connecting wires or other accessories.
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公开(公告)号：US20220299238A1
公开(公告)日：2022-09-22
申请号：US17207908
申请日：2021-03-22
摘要： The disclosed technology includes a gas delivery system for controlling a target gas input rate of a fluid heating device. The system can include a sensor configured to measure a temperature of a gas flowing in a gas flow path, a modulating orifice in fluid communication with the gas flow path, and a motor in mechanical communication with the modulating orifice. The system can further include a controller configured to receive temperature data indicative of the temperature of the gas. The controller can determine a target cross-sectional area of the modulating orifice based at least in part on the target gas input rate and the temperature of the gas and, in response, output a signal to the motor to transition the modulating orifice from a first position to a second position having the target cross-sectional area.
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公开(公告)号：US11287160B2
公开(公告)日：2022-03-29
申请号：US16042386
申请日：2018-07-23
发明人： Timothy D. Scott , Michael C. Mitchell , Raheel A. Chaudhry , William T. McLemore , Hector J. Donastorg
IPC分类号： F24H9/12 , F24H1/18 , G01R33/07 , F24H9/20 , G01F1/56 , F24H9/00 , F24H1/20 , G01R33/00 , G01F15/00 , G01F1/115
摘要： An integrated valve and flow sensor for a water heater can have a valve body that includes a valve and a flow sensor for measuring the flow of water through the valve. The integrated valve and flow sensor can be disposed within a fitting that can be attached to a water heater. An actuator for opening and closing the valve can be attached to the fitting. A diffuser can also be attached to the fitting.
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公开(公告)号：US11274779B2
公开(公告)日：2022-03-15
申请号：US16281641
申请日：2019-02-21
发明人： David F. Hickman
IPC分类号： F16L25/02 , F24H9/12 , F16L19/065
摘要： A dielectric fitting includes a nut having inner threads and an axial compression surface, and a hole having a first diameter. A mating component includes outer threads that engage with the inner threads including a second axial compression surface. A first fitting includes a circumferential flange captured between the first axial compression surface and the second axial compression surface, the first fitting having a first wall that extends axially and passes through the first hole and includes first fitting threads. A second fitting includes second fitting threads that engage with the first fitting threads, the second fitting having a second wall and a bulge portion that radially projects to a second diameter and includes an O-ring. The nut and the mating component are dielectrically isolated from the first fitting and the second fitting, and the second diameter is larger than the first diameter.
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公开(公告)号：US20210293453A1
公开(公告)日：2021-09-23
申请号：US17149296
申请日：2021-01-14
申请人： Rinnai Corporation
发明人： Kazuyuki SHICHI , Kunio KATAOKA
摘要： A gas manifold allows each distribution chamber to be fed with fuel gas at an appropriate flow rate irrespective of an increase in the number of distribution chambers included in the gas manifold. A gas manifold distributes fuel gas flowing in through an inlet to a plurality of distribution chambers through a main channel. The main channel includes a flow guide that guides the fuel gas toward a maximum distribution chamber and reduces the fuel gas flowing into other distribution chambers. This allows fuel gas at a sufficient flow rate to be fed more easily to the maximum distribution chamber than to the other distribution chambers for a larger number of distribution chambers included in the gas manifold, allowing the plurality of distribution chambers to be fed with fuel gas at appropriate flow rates.
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公开(公告)号：US10969142B2
公开(公告)日：2021-04-06
申请号：US16033232
申请日：2018-07-12
申请人： NORITZ CORPORATION
发明人： Naoki Tsuda , Yoshifumi Atobe , Kenichi Nakayama
摘要： In a heating and hot water supply apparatus, a heat exchanger for hot water supply includes a primary-side path and a secondary-side path. A bypass path branches from a heating circulation path and is configured such that a heat transfer medium heated by a heating device flows through the primary-side path without passing through a heating terminal when hot water supply operation is performed and then joins the heating circulation path again. A control unit controls a flow rate regulating valve so that a hot water flow rate does not exceed a reference limit flow rate when hot water supply operation is performed. The reference limit flow rate is set on the basis of the smaller one between a maximum heating capacity of the heating device and a heating capacity of the heating device at which an output temperature of the heated heat transfer medium reaches an upper limit temperature.
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公开(公告)号：US20210080148A1
公开(公告)日：2021-03-18
申请号：US16568523
申请日：2019-09-12
申请人： Scott Carpenter
发明人： Scott Carpenter
摘要： A tankless water heater and manifold system is provided. The system includes a self-contained unit for providing hot water distribution throughout the system. The unit includes a tankless water heater having a hot water outlet pipe with outlet ports that function as a built-in manifold for distributing water directly from the unit through hot water lines that connect each plumbing fixture in the system directly to the unit.
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公开(公告)号：US10921026B2
公开(公告)日：2021-02-16
申请号：US15983115
申请日：2018-05-18
申请人： NORITZ CORPORATION
发明人： Takahiro Maeda , Yoshiro Nishiyama , Toshiya Tatsumura , Yoshikazu Kato , Yuki Nakajima , Takuto Matsuoka , Hidetsugu Okada , Isao Aoki , Sachiko Tachibana , Masanori Yamashita
摘要： In a heating heat-source apparatus having input circuits configured to receive pieces of mutually independent heating demand information, an abnormality related to an operation for setting one input circuit among the input circuits to a use state is detected and reported. Input circuits receive heating demand information. An operation part receives an operation for setting one input circuit of the input circuits to a use state. A CPU receives heating demand information transmitted from the input circuit in the use state while receiving specified information for specifying the input circuit in the use state from the operation part. Each piece of heating demand information is voltage information having a predetermined voltage range. The CPU reports an abnormality related to an operation for setting when voltage information transmitted from the input circuit in the use state deviate from a voltage range specified in the specified information.
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公开(公告)号：US10900668B2
公开(公告)日：2021-01-26
申请号：US16000481
申请日：2018-06-05
摘要： A liquid heating system includes an instantaneous heater (18) having an inlet (20) connected to a reservoir (62). The outlet (22) of the heater is connected to fixtures (72) which use the heated liquid, and is also connected through a return connection (30) to the reservoir. In an idle mode, a pump 40 draws liquid from the reservoir (62), so that the liquid circulates through the heater and back to the reservoir. A controller (52) actuates the heater to heat the liquid to a first setpoint temperature, so that the liquid in the reservoir stabilizes at the first setpoint temperature. In a supply mode, some or all of the heated liquid flows from the outlet to the fixtures (72). Cold liquid is admitted from a supply (60) to the reservoir, and cold liquid desirably also is supplied to the heater inlet along with liquid from the reservoir, so that the heater inlet receives a combination of these. The controller controls the proportion of cold liquid to liquid from the reservoir in the combination, so as to maintain the heater at a setpoint heating rate while also maintaining the temperature of liquid discharged from the heater outlet at or near a setpoint temperature.
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公开(公告)号：US10883743B2
公开(公告)日：2021-01-05
申请号：US16054431
申请日：2018-08-03
发明人： Jozef Boros
摘要： A water heater has a water supply line, a heat exchanger in fluid communication with the water supply line, a heating element positioned proximate to the heat exchanger, such that when activated, the heating element conveys heat to the heat exchanger and thereby heating water supplied by the water supply line, an output line in fluid communication with the heat exchanger and configured to receive heated water therefrom, a flow sensor configured to cause the heating element to activate in response to sensing a predetermined water flow rate through the water heater, and a bypass flow line operably connected between the water supply line and the output line.
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