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1. 发明授权

US10488042B2 Method for detecting blockage in exhaust flue of gas boiler 有权
公开(公告)号：US10488042B2
公开(公告)日：2019-11-26
申请号：US15305600
申请日：2015-04-13
申请人： KYUNGDONG NAVIEN CO., LTD
发明人： Dong Jin Yang , Jeon Hur , Soo Hyun Hur
IPC分类号： F23N5/24 , F23N5/10 , F23N5/20
CPC分类号： F23N5/245 , F23N5/10 , F23N5/20
摘要： The present invention relates to a method for detecting a blockage in an exhaust flue of a gas boiler, comprising: (A) a step for conducting an ignition process according to a user set temperature requested from the outside and performing temperature control to reach the user set temperature; (B) a step for determining whether the current fan RPM of a driven blower exceeds a reference fan RPM; (C) a step for calculating a difference between temperature values of supplied heating water and collected heating water that are detected by temperature sensors when heating water is supplied and determining whether the calculated value is less than a preset reference temperature value when it is determined that the current fan RPM exceeds the reference fan RPM; (D) a step for determining whether the elapsed time elapses a preset setting time based on the determination time point of the step (C) when it is determined that the calculated value is less than the reference temperature value; and (E) a step for displaying, on the outside, a notification that the blockage in the exhaust flue has been identified when it is determined that the elapsed time has elapsed the setting time based on the determination time point of the step (C).

2. 发明授权

US11428580B2 Bracket for fixing temperature sensor, heat exchanger including the bracket, and water heating apparatus using the heat exchanger for freeze protection 有权
公开(公告)号：US11428580B2
公开(公告)日：2022-08-30
申请号：US17017163
申请日：2020-09-10
申请人： KYUNGDONG NAVIEN CO., LTD.
发明人： Jun Kyu Park , Jeon Hur , Whee Jun Lim
IPC分类号： G01K1/14 , G01K1/143 , F28F27/00 , F24H9/20 , F24D19/00 , F28F9/04
摘要： A heat exchanger according to the present disclosure includes a plurality of tubes through which heating water flows, a housing having an interior space in which the plurality of tubes are disposed and through which a combustion gas passes, the housing including a plurality of flow passage caps connected with distal ends of the plurality of tubes to cause the heating water to flow through the flow passage caps, a temperature sensor brought into close contact with an area between two flow passage caps adjacent to each other among the plurality of flow passage caps to obtain a temperature, and a bracket coupled to the housing to bring the temperature sensor into close contact with the area between the adjacent two flow passage caps.

3. 发明授权

US11774091B2 Burner assembly 有权
公开(公告)号：US11774091B2
公开(公告)日：2023-10-03
申请号：US16952090
申请日：2020-11-19
申请人： Kyungdong Navien Co., LTD
发明人： Jeon Hur , Hwa Yong Cha
IPC分类号： F23D14/46 , F23D14/04 , F24H1/18
CPC分类号： F23D14/46 , F23D14/04 , F24H1/186
摘要： A burner assembly includes a plurality of burner units including, on front sides thereof, fuel inlets through which fuel is introduced into the plurality of burner units, in which the plurality of burner units cause a combustion reaction using the introduced fuel, a case to which the plurality of burner units are coupled with a predetermined separation distance therebetween, and a flow passage guide that is coupled to a front side of the case and that includes a plurality of fuel openings corresponding to the fuel inlets of the plurality of burner units, and the flow passage guide is implemented as separate from the case.

4. 发明授权

US11408641B2 Bell mouth, air supply assembly including the bell mouth, and air supply control system using the bell mouth 有权
公开(公告)号：US11408641B2
公开(公告)日：2022-08-09
申请号：US17013103
申请日：2020-09-04
申请人： KYUNGDONG NAVIEN CO., LTD.
发明人： Jun Kyu Park , Jeon Hur , Jeong Gi Yu
IPC分类号： F23R3/04 , F24H9/20 , G01F1/42 , G01F1/40 , F24H9/00 , F24H9/1836 , F23N5/18
摘要： A bell mouth includes an upstream body including an upstream-side opening formed to allow air introduced from an air supply duct to pass through and an upstream measurement portion connected with a differential-pressure acquisition device that uses pressure of the air in the upstream-side opening, in which the air supply duct guides the air into a water-heating device from the outside, a differential-pressure generation part that is located downstream of the upstream body with respect to a flow direction of the air and that has a structure that reduces the pressure of the air passing through the differential-pressure generation part, and a downstream body including a downstream-side opening formed to allow the air passing through the differential-pressure generation part to pass through and a downstream measurement portion connected with the differential-pressure acquisition device that obtains a difference between the pressure of the air passing through the downstream-side opening and facing toward a blower of the water-heating device and the pressure of the air in the upstream-side opening.

5. 发明授权

US11262099B2 Cap and water-heating device including the same 有权
公开(公告)号：US11262099B2
公开(公告)日：2022-03-01
申请号：US16943047
申请日：2020-07-30
申请人： KYUNGDONG NAVIEN CO., LTD.
发明人： Jun Kyu Park , Jeon Hur , Hwa Yong Cha
IPC分类号： F24H1/00 , F24H9/02 , F24H9/06 , F23J13/04 , F23J13/00
摘要： The present disclosure provides a cap and a water-heating device having the same. The cap for covering a top side of a case of the water-heating device includes a cover having a receiving space that is open at the bottom, the cover including an exhaust hole formed therein for releasing exhaust gas in the case to the outside, and an exhaust duct that is received in the receiving space and coupled to the cover and that forms an exhaust channel that connects an exhaust tube included in the case and the exhaust hole and releases the exhaust gas, in which the exhaust duct is formed of a material different from a material of the cover, and the material of the exhaust duct has higher heat resistance than the material of the cover.

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