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公开(公告)号：US11486604B2
公开(公告)日：2022-11-01
申请号：US16709657
申请日：2019-12-10
发明人： Stephen C. Wilson
摘要： A heating, ventilating, and air conditioning (HVAC) system includes a furnace having a primary heat exchanger and a secondary heat exchanger, where the primary heat exchanger and the secondary heat exchanger form a heat exchange relationship between an airflow and an exhaust gas, and where the primary heat exchanger is positioned upstream of the secondary heat exchanger, a burner configured to generate the exhaust gas, a sensor configured to monitor an ambient temperature, and a control system configured to receive feedback from the sensor, compare the feedback to a threshold, operate the furnace in a first mode when the ambient temperature exceeds the threshold, and operate the furnace in a second mode when the ambient temperature is at or below the threshold, where the furnace operates above a condensation temperature when in the second mode, such that the exhaust gas does not condense when operating in the second mode.
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公开(公告)号：US20220324246A1
公开(公告)日：2022-10-13
申请号：US17809499
申请日：2022-06-28
申请人： Cricut, Inc.
发明人： John Dalton , Cole Chamberlain , Ashish Arora
摘要： A sublimation device includes a first heater and a second heater. The first heater includes a proximal end, a distal end, and an inner surface. The distal end is disposed opposite the proximal end. The inner surface extends between the proximal end and the distal end and at least partially forms a cavity. The second heater is disposed proximate the distal end of the first heater.
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公开(公告)号：US11407245B1
公开(公告)日：2022-08-09
申请号：US17177965
申请日：2021-02-17
申请人： Cricut, inc.
发明人： John Dalton , Cole Chamberlain , Ashish Arora
摘要： A sublimation device includes a first heater and a second heater. The first heater includes a proximal end, a distal end, and an inner surface. The distal end is disposed opposite the proximal end. The inner surface extends between the proximal end and the distal end and at least partially forms a cavity. The second heater is disposed proximate the distal end of the first heater.
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公开(公告)号：US20220243955A1
公开(公告)日：2022-08-04
申请号：US17649292
申请日：2022-01-28
申请人： Bryan D. Quinn
发明人： Bryan D. Quinn
摘要： An example indirect water heater is disclosed having a water storage tank with a primary heat exchanger. A heating fluid inlet of the primary heat exchanger receives a heating fluid from an external heat source into the primary heat exchanger. A heating fluid outlet of the primary heat exchanger returns the heating fluid to the external heat source after traveling through the primary heat exchanger. A secondary heat exchanger has a water source inlet and a water source outlet. The secondary heat exchanger is provided in thermal connection with the primary heater exchanger to preheat a source water before discharging the source water from the water source outlet into the water storage tank.
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公开(公告)号：US20220178585A1
公开(公告)日：2022-06-09
申请号：US17116219
申请日：2020-12-09
摘要： A gas fueled water heater appliance may include a tank for storage of water, a chamber wall, a gas burner, a gas conduit, a support post, and a guide bracket. The chamber wall may define a combustion chamber and a conduit hole. The gas burner may be positioned adjacent to the tank and within the combustion chamber. The gas conduit may extend from the gas burner and through the conduit hole. The support post may be fixed to the gas burner within the combustion chamber. The guide bracket may be mounted within the combustion chamber and define a mounting point. The guide bracket may be in selective engagement with the support post at the mounting point. The guide bracket may include a pair of lateral arms extending outward from the mounting point toward the chamber wall to guide the support post to the mounting point.
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公开(公告)号：US11236930B2
公开(公告)日：2022-02-01
申请号：US15968626
申请日：2018-05-01
申请人： Ademco Inc.
发明人： Gregory Young , Frederick Hazzard , Adam Myre
摘要： A water heater may include a water tank, a burner, a pilot for igniting the burner, an ignitor for igniting the pilot, a thermoelectric device in thermal communication with a flame of the pilot, a controller for controlling an ignition sequence of the pilot using the ignitor, and a rechargeable power storage device for supplying power to the ignitor and the controller. The rechargeable power storage device may be rechargeable using the energy produced by the thermoelectric device. The controller is configured to selectively run only the pilot for at least part of a heating cycle to increase the recharge time of the rechargeable power storage device while still heating the water in the water heater.
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公开(公告)号：US11193669B2
公开(公告)日：2021-12-07
申请号：US16214801
申请日：2018-12-10
申请人： ConleyMax Inc.
发明人： Patrick G. Bell , William N. Beckie
摘要： A method of connecting a heat exchanger, which is used primarily in oil and gas operations to heat tanks of liquids, such as drilling mud, water, heavy oil or other such fluids from freezing or becoming too viscous to pump, to a tank.
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公开(公告)号：US20210354530A1
公开(公告)日：2021-11-18
申请号：US17320415
申请日：2021-05-14
摘要： A PTC heating assembly includes a heating cell comprising a PTC element and conductor elements electrically abutting the PTC element. The heating cell is accommodated in a heater housing. The heater housing is manufactured with undersize relative to the heating cell so that the heating cell, after insertion into the heater housing, is held under pretension between mutually opposing walls of the heater housing. Accordingly, in the method according to the invention, the heater housing is elastically widened when the heating cell is inserted into the heater housing.
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公开(公告)号：US11118811B2
公开(公告)日：2021-09-14
申请号：US16708802
申请日：2019-12-10
申请人： RINNAI CORPORATION
发明人： Takahiro Ono , Takashi Ojiro
IPC分类号： F28F3/00 , F24H1/41 , F24H8/00 , F24H9/18 , F28D9/00 , F28D21/00 , F24H1/44 , F24H1/32 , F24H1/34 , F24H1/14
摘要： A heat source device comprising: a combustion chamber (2) provided between a burner (31) and a heat exchanger (1); an inlet pipe (20) for allowing a fluid to be heated to flow in the heat exchanger (1); an outlet pipe (21) for allowing the fluid to be heated to flow out from the heat exchanger (1); and a winding pipe (27) wound around an outer surface of a peripheral wall of the combustion chamber (2), wherein either the inlet pipe (20) or the outlet pipe (21) has an orifice (91) for throttling a fluid flow path of the fluid to be heated flowing in the inlet pipe (20) or the outlet pipe (21).
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公开(公告)号：US11098924B2
公开(公告)日：2021-08-24
申请号：US16218320
申请日：2018-12-12
发明人： Piyush Porwal , Ashwin Rao , Jason Hall , Jozef Boros
摘要： A combustion tube assembly of a water heater includes a combustion tube having an open end, a closed end, and an outflow opening between the open end and the closed end. A cavity of the combustion tube provides a chamber for a combustion of a water heater fuel, where the outflow opening provides an outlet for an exhaust gas resulting from the combustion of the water heater fuel to exit the combustion tube. The combustion tube assembly further includes a spring positioned in the cavity of the combustion tube at the closed end of the combustion tube.
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